An analytic hierarchy process(AHP)was employed to assess the applicability of 18 new and superior varieties of flowers in Hefei City flower border applications.A total of 12 indicators were selected from three distinc...An analytic hierarchy process(AHP)was employed to assess the applicability of 18 new and superior varieties of flowers in Hefei City flower border applications.A total of 12 indicators were selected from three distinct aspects of adaptability,ornamental characteristics and use traits,in order to establish a comprehensive evaluation model.The results demonstrate that grade I(J≥2.685)exhibits excellent application value,encompassing six species of plants,such asHydrangeamacrophylla‘Endless Summer’;grade II(2.684≤J≤2.420)is also of notable application value,encompassing five species of plants,such asCallistemonrigidus;grade III(2.419≤J≤2.615)is of average application value,including five species of plants,such asCrocosmiacrocosmiflora;grade IV(J≤2.16)is of relatively poor application value.The evaluation results may be utilized as a theoretical reference for the promotion of new and superior varieties in the flower border of Hefei.展开更多
Longli 1 ( Chenopod/um qu/noa Willd) was the first new quinoa variety in China, which was bred by Pasture and Green Agriculture Institute of Gansu Academy of Agricultural Sciences through the methods of line breedin...Longli 1 ( Chenopod/um qu/noa Willd) was the first new quinoa variety in China, which was bred by Pasture and Green Agriculture Institute of Gansu Academy of Agricultural Sciences through the methods of line breeding, cultivation and domestication. In muhipeint regional test, the average yield of Longli 1 was 2 100. (30 kg/hm2, which was increased by 9.6% compared to Jingle qulnoa. Langli 1 was a mid-late mature quinoa variety. The plant was brcom-shape, with the plant height of 181.2 - 223.6 cm, the growth period of 128 - 140 d, and the branch number of 23 - 27. The seeds were round pill shaped, with 1 000-grain weight of 2.40 -3.46 g. The contents of crude protein, fat, proline and total phosphorus in seeds were 171.5 -187.8, 56.5 -59.3, 5.5 -6.9 and 4.5 -6.8 g/kg, re- spectively. I_ongli 1 presented resistance against downy mildew and leaf spot, with strong disease-resistant ability. In multipeint regional test and production test, Longli 1 displayed lodging resistance with strong regeneration ability. It also presented resistance to cold, drought, saline and alkaline, and barren, with wide adaptability. Longh 1 was suitable for planting in mountains, plain field and irrigation area with frost-free period greater than 120 d, rainfall more than 250 mm, and altitude 1 500 -3 000 m. The application prospects of quinoa were also put forward in the paper.展开更多
The authors discribed a new polystigmate combination, Gomphonema turris Ehr. var. okamurae (Skv.) Fan et Bao.comb.nov., and two new varieties, Gomphonema turris Ehr. var. latum Fan et Wang. var. nov. and Gomphonema ac...The authors discribed a new polystigmate combination, Gomphonema turris Ehr. var. okamurae (Skv.) Fan et Bao.comb.nov., and two new varieties, Gomphonema turris Ehr. var. latum Fan et Wang. var. nov. and Gomphonema acuminatum var. obtusum Fan et Bao, var. nov., that were distinguished by frustule morphology under LM. The samples were collected from freshwater of Heilongjiang Province, China.展开更多
To meet the demand of maize production in Guangxi and even the southwest region of China and realize the upgrading and undating of maize varieties which will continuously improve the yield and quality of maize,a new b...To meet the demand of maize production in Guangxi and even the southwest region of China and realize the upgrading and undating of maize varieties which will continuously improve the yield and quality of maize,a new big-ear maize variety Guidan 903 with high yield,stable yield and good quality was established by the Maize Research Institute of Guangxi Academy of Agricultural Sciences with two self-selected inbred line GRL17349 and GRL21191 as female and male parents seperately.The average yield of this variety were 7429.5 and 7000.5 kg/hm^(2)in Guangxi Maize Regional Trial and Production Test respectively,which increased by 6.3%and 5.6%than the control(Guidan162).It was approved by Guangxi Zhuang Autonomous Region Crop Variety Certification Committee in June 2020(Approval No.Gui sheng yu 2020083).Determined by the Cereal Quality Supervision and Testing Center of Ministry of Agriculture and Rural Affairs(Bejjing),the grain bulk density,ratio of crude protein,crude fat,crude starch and lysine of Guidan 903 were 782 g/L,9.41%,6.19%,71.45%,0.35%respectively.This variety has the characterisics of strong resistance to collapse and disease,good quality,high and stable yield and wide adaptability.Furthermore,its seed yield is high with easy production technology and low cost.展开更多
To enhance the yield potential of an elite indica rice cultivar,an introgression(BC_3-derived) line of IR64,YTH288,was developed using a new-plant-type cultivar,IR66215-44-2-3,as a donor parent.YTH288 has agronomicall...To enhance the yield potential of an elite indica rice cultivar,an introgression(BC_3-derived) line of IR64,YTH288,was developed using a new-plant-type cultivar,IR66215-44-2-3,as a donor parent.YTH288 has agronomically valuable characteristics such as large panicles,few unproductive tillers,and large leaves inherited from NPT.To identify the genetic basis of these traits,we used 167 F_2 plants derived from a cross between IR64 and YTH288 to conduct QTL analysis for five agronomic traits:days to heading(DTH),culm length(CL),flag leaf length(FLL),flag leaf width(FLW),and filled spikelet number per panicle(FSN).Six putative QTL were detected:four on chromosome4(for CL,FLL,FLW,and FSN) and two on chromosome 2(for DTH and FLL).All QTL with the IR66215-44-2-3 allele,except that for FLL on chromosome 2,had positive effects on each trait.To confirm the effects of these putative QTL,we developed NILs with the IR64 genetic background by marker-assisted selection.We observed significant differences in several agronomic traits between IR64 and NILs that carried these QTL on chromosomes2 and 4.Additionally,four IR64-NILs carrying chromosomal segments derived from different NPT varieties on the long arm of chromosome 4 exhibited similar pleiotropic To enhance the yield potential of an elite indica rice cultivar, an introgression(BC3-derived) line of IR64, YTH288, was developed using a new-plant-type cultivar,IR66215-44-2-3, as a donor parent. YTH288 has agronomically valuable characteristics such as large panicles, few unproductive tillers, and large leaves inherited from NPT.To identify the genetic basis of these traits, we used 167 F2 plants derived from a cross between IR64 and YTH288 to conduct QTL analysis for five agronomic traits: days to heading(DTH), culm length(CL), flag leaf length(FLL), flag leaf width(FLW), and filled spikelet number per panicle(FSN). Six putative QTL were detected: four on chromosome4(for CL, FLL, FLW, and FSN) and two on chromosome 2(for DTH and FLL). All QTL with the IR66215-44-2-3 allele, except that for FLL on chromosome 2, had positive effects on each trait. To confirm the effects of these putative QTL, we developed NILs with the IR64 genetic background by marker-assisted selection. We observed significant differences in several agronomic traits between IR64 and NILs that carried these QTL on chromosomes2 and 4. Additionally, four IR64-NILs carrying chromosomal segments derived from different NPT varieties on the long arm of chromosome 4 exhibited similar pleiotropiceffects for unique agronomic traits. These NILs can be used as research materials for studying each trait and as breeding materials for yield improvement of indica rice cultivars.展开更多
Protection of new plant varieties has been long neglected in China, which has already restricted agricultural technological renovation, and influenced export of Chinese agricultural products. The current scientific an...Protection of new plant varieties has been long neglected in China, which has already restricted agricultural technological renovation, and influenced export of Chinese agricultural products. The current scientific and technological management system is not favorable for the output of right of new plant variety, and high cost of protecting new plant varieties directly results in agricultural researchers' ignorance of right of new plant variety. Major causes were concluded as poor intellectual property awareness of peasants and agricultural researchers, government-arranged system for agricultural scientific and technological management, and hardship in safeguarding intellectual property due to the particularity of agricultural technology. In view of these problems, Chinese agricultural scientific and technological management system should be reformed, protection system of new plant varieties improved, more efforts devoted in protecting the right of new plant variety and also the owners' interest.展开更多
The Union for the Protection of New Varieties of Plants is abbreviated as UPOV. The Convention for the Protection of New Varieties of Plants has 1961/1972 Act ,1978 Act and 1991 Act. China is member of UPOV and its re...The Union for the Protection of New Varieties of Plants is abbreviated as UPOV. The Convention for the Protection of New Varieties of Plants has 1961/1972 Act ,1978 Act and 1991 Act. China is member of UPOV and its regulations of protection of new varieties of plants conform to 1978 Act. At present, there is big debate whether China accedes to 1991 Act. This paper mainly discussed advantages and possibilities that China accedes to 1991 Act, and concluded that it is highly desirable that China should consider acceding to 1991 Act in order to contribute to development of system on protection of new varieties of plants.展开更多
This paper studies farmers'privilege under the protection of new plant varieties,and points out that farmers'privilege is given to balance interests of plant breeders and relevant public.Based on this,it analy...This paper studies farmers'privilege under the protection of new plant varieties,and points out that farmers'privilege is given to balance interests of plant breeders and relevant public.Based on this,it analyzes shortcomings of farmers'privilege regulations,and puts forward that it is required to improve farmers'privilege regulations in subjects,objects and contents of rights on the basis of learning from advanced legislation experience of foreign countries,and build the interest sharing mechanism between breeders and farmers.展开更多
‘Lvyou No. 1',bred in Huasheng Agriculture Limited Liability Company of Shandong Province,is a new cucumber F1 hybrid developed by crossing two inbred lines HS267014 and HS6201. It is an early-maturing variety with ...‘Lvyou No. 1',bred in Huasheng Agriculture Limited Liability Company of Shandong Province,is a new cucumber F1 hybrid developed by crossing two inbred lines HS267014 and HS6201. It is an early-maturing variety with wide adaptability,high yield,and good commercial breeding. The plant has strong growth vigor and high resistance to white powder mildew. The first fruit sets on the 4 ^th-5^ th section,and the fruiting ratio of cucumber is 60%-80%. The cylindrical fruit is about 30-35 cm in length,3. 2-3. 5 cm in diameter with light green skin and glossy appearance. This plant has demonstrated adaptability in early-spring and late-autumn planting as well as spring and autumn tunnel planting.展开更多
[ Objective] This study aimed to analyze the quality characteristics of the new middle-ripejapon/ca rico varieties in Jiangsu Province. [ Method] Four- teen new rice varieties included in the Middle-ripe Japon/ca Rice...[ Objective] This study aimed to analyze the quality characteristics of the new middle-ripejapon/ca rico varieties in Jiangsu Province. [ Method] Four- teen new rice varieties included in the Middle-ripe Japon/ca Rice Regional Test in 2011 were selected as the materials. Correlation analysis and cluster analysis were carried out on their quality traits. [Result] The rice cultivars possessed stable characteristics, which were difficult to be further improved. In addition, their quality traits had extremely complicated relationships, and the differences were significant between different groups. [ Conclusion] This study will provide reference for improving the quality traits of japonica rice.展开更多
Adoption of new agricultural variety is an important way to improve the efficiency of agricultural production and farmer's income.According to survey data on the 279 farmers in Huaxia,Henan Province,this paper mad...Adoption of new agricultural variety is an important way to improve the efficiency of agricultural production and farmer's income.According to survey data on the 279 farmers in Huaxia,Henan Province,this paper made an empirical analysis on influencing factors of the farmer's adoption behavior for new maize variety by using the binary Logistic model. The results showed that farmer's educational level,whether or not demonstration family,the main source of household income,the maize planting area,farmer's awareness of new variety,farmer's risk attitude as well as the times to contract with agricultural inspector all had significantly positive effects on adoption of new maize variety. Whether or not the family had cadres had significantly negative effect on the adoption of new maize variety.展开更多
This paper introduced the breeding process,characteristics,yield performance,disease resistance,quality characters,and suitable production areas of the new early-maturing oil sunflower variety"Xin Kui No.27"...This paper introduced the breeding process,characteristics,yield performance,disease resistance,quality characters,and suitable production areas of the new early-maturing oil sunflower variety"Xin Kui No.27",and summarized high-yield cultivation techniques based on large-area continuous cultivation demonstration to serve agricultural production.展开更多
This study explored the medium for new variety of Asparagus——Linlu No.1 to induce germination, bud proliferation,and induce rootings and their formula. The result revealed that MS+6-BA 1.0 mg/L+NAA 0.05 mg/L is the ...This study explored the medium for new variety of Asparagus——Linlu No.1 to induce germination, bud proliferation,and induce rootings and their formula. The result revealed that MS+6-BA 1.0 mg/L+NAA 0.05 mg/L is the suitable medium for germination; MS+6-BA 0.5 mg/L+NAA 0.5 mg/L is the medium fit for bud proliferation and 1/2MS+IBA 0.5 mg/L+KT 0.05 mg/L+sucrose 30 g/L is the perfect medium for rootings.展开更多
With the development of the greenhouse grape cultivation area,the supporting greenhouse grape varieties appear to be single.At present,there are few researches on the selection of grape varieties suitable for two-harv...With the development of the greenhouse grape cultivation area,the supporting greenhouse grape varieties appear to be single.At present,there are few researches on the selection of grape varieties suitable for two-harvest-a-year cultivation in greenhouses.In order to meet the needs of fruit growers for the diversity of greenhouse grape varieties,experimental studies had been carried out.Through three consecutive years of two-harvest-a-year production of six grape varieties of‘Jingxiangyu’,‘Ruidukemei’,‘Xiangfei’,‘Jingyan’,‘Zaomanao’and‘Hanxiangmi’,the first crop of greenhouse grapes matured from May to July,and the second crop matured during the New Year s Day and Spring Festival.Through the investigation and analysis of their phenological periods,fruit economic characteristics and economic benefits,it was found that the four varieties of‘Jingxiangyu’,‘Ruidukemei’,‘Xiangfei’and‘Jingyan’performed well under greenhouse cultivation conditions,and thus can be used as supporting fine varieties for large-scale promotion.展开更多
[Objective]The paper was to seek new varieties of high quality conventional rice suitable for Yangjiang area,Guangdong Province,China.[Method]In 2017,introduction test was performed with seven new varieties of high-qu...[Objective]The paper was to seek new varieties of high quality conventional rice suitable for Yangjiang area,Guangdong Province,China.[Method]In 2017,introduction test was performed with seven new varieties of high-quality conventional rice approved by Guangdong Province in recent years,including Huangsilizhan,Guangjingruanzhan,Heliyouzhan,Huahang 48,Limiaozhan,Lvyinzhan,Yuehesimiao,to investigate the main agronomic traits and yield of all varieties tested.[Result]The comprehensive performance of Lvyinzhan,Guangjingruanzhan,Limiaozhan and Huahang 48 was outstanding,showing the characters of good yield,excellent rice quality and strong stress resistance.[Conclusion]Lvyinzhan,Guangjingruanzhan,Limiaozhan and Huahang 48 are suitable for large-scale demonstration and promotion in Yangjiang area.展开更多
[Objectives]To study the breeding of a new sugarcane variety Yuetang 08776 suitable for mechanized production.[Methods]With Yuetang 96-86 as the female parent and Yuetang 99-66 as the male parent,Yuetang 08776 was bre...[Objectives]To study the breeding of a new sugarcane variety Yuetang 08776 suitable for mechanized production.[Methods]With Yuetang 96-86 as the female parent and Yuetang 99-66 as the male parent,Yuetang 08776 was bred by the Bioengineering Institute of Guangdong Academy of Sciences.It was approved as a non-major crop variety by the Ministry of Agriculture and Rural Affairs in December,2019.Through many years of multi-pilot trials,the characters,traits and disease resistance of Yuetang 08776 were investigated,and the key points of its cultivation technique were summarized.[Results]Yuetang 08776 is characterized by medium maturity,high sugar content,high and stable yield,strong cold and drought resistance,large number of effective stems,strong ratooning ability and lodging resistance.Yuetang 08776 has excellent agronomic traits,and has been identified as moderately resistant to smut and mosaic disease.The average cane yield of Yuetang 08776 was 119.89 t/ha,18.50 t/ha higher than that of CK,an increase of 18.25%.The average sugar yield was 17.15,2.11 t/ha higher than that of CK,an increase of 14.03%.The average sucrose content of Yuetang 08776 in the early period(November to December)was 13.20%,0.71 percentage points lower than that of CK;in the middle and late period(January to March of the following year),the average sucrose content was 15.23%,0.22 percentage points lower than that of CK;and the average sucrose content of the whole period was 14.21%,0.47 percentage points lower than that of CK.[Conclusions]Yuetang 08776 is a sugarcane variety with medium maturity,high sugar,high and stable yield,strong resistance and good ratooning.It is suitable for mechanized seeding,management and harvesting,and suitable for planting and popularizing in most sugarcane production areas of Guangdong,Guangxi and Yunnan.展开更多
‘Jixiu’is a new early ripening pear variety bred by‘Jimi’בXinhang’,and its fruit quality is excellent.It has performed well in central and southern Hebei.This paper introduces its botanical characteristics...‘Jixiu’is a new early ripening pear variety bred by‘Jimi’בXinhang’,and its fruit quality is excellent.It has performed well in central and southern Hebei.This paper introduces its botanical characteristics,growth phenology,growth and fruiting habits,pollination characteristics and disease resistance in central and southern Hebei.A set of suitable cultivation techniques for Jixiu pear were summarized,including pruning,fruit thinning and bagging,water and fertilizer management,pest and disease control and so on,which provided theoretical support for the popularization and demonstration of this new variety.展开更多
Selective breeding of the Pacific white shrimp Litopenaeus vannamei during the last decade has produced new varieties exhibiting high growth rates and disease resistance.However,the identification of new varieties of ...Selective breeding of the Pacific white shrimp Litopenaeus vannamei during the last decade has produced new varieties exhibiting high growth rates and disease resistance.However,the identification of new varieties of shrimps from their phenotypic characters is difficult.This study introduces a new approach for identifying varieties of shrimps using molecular markers of microsatellites and mitochondrial control region sequences.The method was employed to identify a new selected variety,Kehai No.1(KH-1),from three representative stocks(control group):Zhengda;Tongwei;and a stock collected from Fujian Province,which is now cultured in China's Mainland.By pooled genotyping of KH-1 and the control group,five microsatellites showing differences between KH-1 and the control group were screened out.Individual genotyping data confirmed the results from pooled genotyping.The genotyping data for the five microsatellites were applied to the assignment analysis of the KH-1 group and the control group using the partial Bayesian assignment method in GENECLASS2.By sequencing the mitochondrial control regions of individuals from the KH-1 and control group,four haplotypes were observed in the KH-1 group,whereas14 haplotypes were obtained in the control group.By combining the microsatellite assignment analysis with mitochondrial control region analysis,the average accuracy of identification of individuals in the KH-1group and control group reached 89%.The five selected microsatellite loci and mitochondrial control region sequences were highly polymorphic and could be used to distinguish new selected varieties of L.vannamei from other populations cultured in China.展开更多
Ⅱ-you 92: a new hybrid rice for late seasonⅡ-you 92 is an indica hybrid rice that was developed by Jinhua Agri Res Inst, Zhejiang Province.Ⅱ-you 92 has a suitable growth duration of 122-125 d as double-cropping lat...Ⅱ-you 92: a new hybrid rice for late seasonⅡ-you 92 is an indica hybrid rice that was developed by Jinhua Agri Res Inst, Zhejiang Province.Ⅱ-you 92 has a suitable growth duration of 122-125 d as double-cropping late season rice, 3-4 dshorter than that of Shanyou 64 and 6-7 d shorter than Shanyou 10. It has a compact plant type, high tiller-ing ability and plant height of 85-90 cn. A number of 3.4-3.6 million effective panicles per ha can be展开更多
基金by Undergraduate Innovation and Entrepreneurship Training Program of Anhui Province(S202312216042)Natural Science Key Research Project of Colleges and Universities in Anhui Province(2023AH051816)General Teaching Research Project of Anhui Province(2022jyxm665).
文摘An analytic hierarchy process(AHP)was employed to assess the applicability of 18 new and superior varieties of flowers in Hefei City flower border applications.A total of 12 indicators were selected from three distinct aspects of adaptability,ornamental characteristics and use traits,in order to establish a comprehensive evaluation model.The results demonstrate that grade I(J≥2.685)exhibits excellent application value,encompassing six species of plants,such asHydrangeamacrophylla‘Endless Summer’;grade II(2.684≤J≤2.420)is also of notable application value,encompassing five species of plants,such asCallistemonrigidus;grade III(2.419≤J≤2.615)is of average application value,including five species of plants,such asCrocosmiacrocosmiflora;grade IV(J≤2.16)is of relatively poor application value.The evaluation results may be utilized as a theoretical reference for the promotion of new and superior varieties in the flower border of Hefei.
基金Agricultural Science and Technology Innovation Project of Gansu Province"Key Technology for Introduction,Innovation and Cultivation of Quinoa"(GNCX-2013-48)Youth Fund Project of Gansu Academy of Agricultural Sciences"Effect of Agronomic Measures on Growth Characteristics and Production Performance of Quinoa"(2014GAAS34)
文摘Longli 1 ( Chenopod/um qu/noa Willd) was the first new quinoa variety in China, which was bred by Pasture and Green Agriculture Institute of Gansu Academy of Agricultural Sciences through the methods of line breeding, cultivation and domestication. In muhipeint regional test, the average yield of Longli 1 was 2 100. (30 kg/hm2, which was increased by 9.6% compared to Jingle qulnoa. Langli 1 was a mid-late mature quinoa variety. The plant was brcom-shape, with the plant height of 181.2 - 223.6 cm, the growth period of 128 - 140 d, and the branch number of 23 - 27. The seeds were round pill shaped, with 1 000-grain weight of 2.40 -3.46 g. The contents of crude protein, fat, proline and total phosphorus in seeds were 171.5 -187.8, 56.5 -59.3, 5.5 -6.9 and 4.5 -6.8 g/kg, re- spectively. I_ongli 1 presented resistance against downy mildew and leaf spot, with strong disease-resistant ability. In multipeint regional test and production test, Longli 1 displayed lodging resistance with strong regeneration ability. It also presented resistance to cold, drought, saline and alkaline, and barren, with wide adaptability. Longh 1 was suitable for planting in mountains, plain field and irrigation area with frost-free period greater than 120 d, rainfall more than 250 mm, and altitude 1 500 -3 000 m. The application prospects of quinoa were also put forward in the paper.
文摘The authors discribed a new polystigmate combination, Gomphonema turris Ehr. var. okamurae (Skv.) Fan et Bao.comb.nov., and two new varieties, Gomphonema turris Ehr. var. latum Fan et Wang. var. nov. and Gomphonema acuminatum var. obtusum Fan et Bao, var. nov., that were distinguished by frustule morphology under LM. The samples were collected from freshwater of Heilongjiang Province, China.
基金Special Fund for Basal Scientific Research of Guangxi Academy of Agricultural Sciences(GNK 2021YT017,GNK 2017YM08)Science and Technology Development Fund of Maize Research Institute,Guangxi Academy of Agricultural Sciences(GYK 2017010)Natural Science Foundation Project of Guangxi(2018JJB130196).
文摘To meet the demand of maize production in Guangxi and even the southwest region of China and realize the upgrading and undating of maize varieties which will continuously improve the yield and quality of maize,a new big-ear maize variety Guidan 903 with high yield,stable yield and good quality was established by the Maize Research Institute of Guangxi Academy of Agricultural Sciences with two self-selected inbred line GRL17349 and GRL21191 as female and male parents seperately.The average yield of this variety were 7429.5 and 7000.5 kg/hm^(2)in Guangxi Maize Regional Trial and Production Test respectively,which increased by 6.3%and 5.6%than the control(Guidan162).It was approved by Guangxi Zhuang Autonomous Region Crop Variety Certification Committee in June 2020(Approval No.Gui sheng yu 2020083).Determined by the Cereal Quality Supervision and Testing Center of Ministry of Agriculture and Rural Affairs(Bejjing),the grain bulk density,ratio of crude protein,crude fat,crude starch and lysine of Guidan 903 were 782 g/L,9.41%,6.19%,71.45%,0.35%respectively.This variety has the characterisics of strong resistance to collapse and disease,good quality,high and stable yield and wide adaptability.Furthermore,its seed yield is high with easy production technology and low cost.
基金the results obtained from phases Ⅲ , Ⅳ, Ⅴ, and Ⅵ of the IRRI – Japan Collaborative Research Project, which was supported by the Ministry of Foreign Affairs and the Ministry of Agriculture, Forestry and Fisheries of Japan
文摘To enhance the yield potential of an elite indica rice cultivar,an introgression(BC_3-derived) line of IR64,YTH288,was developed using a new-plant-type cultivar,IR66215-44-2-3,as a donor parent.YTH288 has agronomically valuable characteristics such as large panicles,few unproductive tillers,and large leaves inherited from NPT.To identify the genetic basis of these traits,we used 167 F_2 plants derived from a cross between IR64 and YTH288 to conduct QTL analysis for five agronomic traits:days to heading(DTH),culm length(CL),flag leaf length(FLL),flag leaf width(FLW),and filled spikelet number per panicle(FSN).Six putative QTL were detected:four on chromosome4(for CL,FLL,FLW,and FSN) and two on chromosome 2(for DTH and FLL).All QTL with the IR66215-44-2-3 allele,except that for FLL on chromosome 2,had positive effects on each trait.To confirm the effects of these putative QTL,we developed NILs with the IR64 genetic background by marker-assisted selection.We observed significant differences in several agronomic traits between IR64 and NILs that carried these QTL on chromosomes2 and 4.Additionally,four IR64-NILs carrying chromosomal segments derived from different NPT varieties on the long arm of chromosome 4 exhibited similar pleiotropic To enhance the yield potential of an elite indica rice cultivar, an introgression(BC3-derived) line of IR64, YTH288, was developed using a new-plant-type cultivar,IR66215-44-2-3, as a donor parent. YTH288 has agronomically valuable characteristics such as large panicles, few unproductive tillers, and large leaves inherited from NPT.To identify the genetic basis of these traits, we used 167 F2 plants derived from a cross between IR64 and YTH288 to conduct QTL analysis for five agronomic traits: days to heading(DTH), culm length(CL), flag leaf length(FLL), flag leaf width(FLW), and filled spikelet number per panicle(FSN). Six putative QTL were detected: four on chromosome4(for CL, FLL, FLW, and FSN) and two on chromosome 2(for DTH and FLL). All QTL with the IR66215-44-2-3 allele, except that for FLL on chromosome 2, had positive effects on each trait. To confirm the effects of these putative QTL, we developed NILs with the IR64 genetic background by marker-assisted selection. We observed significant differences in several agronomic traits between IR64 and NILs that carried these QTL on chromosomes2 and 4. Additionally, four IR64-NILs carrying chromosomal segments derived from different NPT varieties on the long arm of chromosome 4 exhibited similar pleiotropiceffects for unique agronomic traits. These NILs can be used as research materials for studying each trait and as breeding materials for yield improvement of indica rice cultivars.
基金Supported by 2011 Intellectual Rights Soft Science Program of Henan Province(20110502)Regional Economic Intellectual Property Promotion Program of State Intellectual Property Office
文摘Protection of new plant varieties has been long neglected in China, which has already restricted agricultural technological renovation, and influenced export of Chinese agricultural products. The current scientific and technological management system is not favorable for the output of right of new plant variety, and high cost of protecting new plant varieties directly results in agricultural researchers' ignorance of right of new plant variety. Major causes were concluded as poor intellectual property awareness of peasants and agricultural researchers, government-arranged system for agricultural scientific and technological management, and hardship in safeguarding intellectual property due to the particularity of agricultural technology. In view of these problems, Chinese agricultural scientific and technological management system should be reformed, protection system of new plant varieties improved, more efforts devoted in protecting the right of new plant variety and also the owners' interest.
文摘The Union for the Protection of New Varieties of Plants is abbreviated as UPOV. The Convention for the Protection of New Varieties of Plants has 1961/1972 Act ,1978 Act and 1991 Act. China is member of UPOV and its regulations of protection of new varieties of plants conform to 1978 Act. At present, there is big debate whether China accedes to 1991 Act. This paper mainly discussed advantages and possibilities that China accedes to 1991 Act, and concluded that it is highly desirable that China should consider acceding to 1991 Act in order to contribute to development of system on protection of new varieties of plants.
文摘This paper studies farmers'privilege under the protection of new plant varieties,and points out that farmers'privilege is given to balance interests of plant breeders and relevant public.Based on this,it analyzes shortcomings of farmers'privilege regulations,and puts forward that it is required to improve farmers'privilege regulations in subjects,objects and contents of rights on the basis of learning from advanced legislation experience of foreign countries,and build the interest sharing mechanism between breeders and farmers.
文摘‘Lvyou No. 1',bred in Huasheng Agriculture Limited Liability Company of Shandong Province,is a new cucumber F1 hybrid developed by crossing two inbred lines HS267014 and HS6201. It is an early-maturing variety with wide adaptability,high yield,and good commercial breeding. The plant has strong growth vigor and high resistance to white powder mildew. The first fruit sets on the 4 ^th-5^ th section,and the fruiting ratio of cucumber is 60%-80%. The cylindrical fruit is about 30-35 cm in length,3. 2-3. 5 cm in diameter with light green skin and glossy appearance. This plant has demonstrated adaptability in early-spring and late-autumn planting as well as spring and autumn tunnel planting.
基金Supported by the Project for Science and Technology Transformation in Jiangsu Province(BA2008083)
文摘[ Objective] This study aimed to analyze the quality characteristics of the new middle-ripejapon/ca rico varieties in Jiangsu Province. [ Method] Four- teen new rice varieties included in the Middle-ripe Japon/ca Rice Regional Test in 2011 were selected as the materials. Correlation analysis and cluster analysis were carried out on their quality traits. [Result] The rice cultivars possessed stable characteristics, which were difficult to be further improved. In addition, their quality traits had extremely complicated relationships, and the differences were significant between different groups. [ Conclusion] This study will provide reference for improving the quality traits of japonica rice.
基金Supported by National Natural Science Foundation(71573126)Soft Science Research Item of Jiangsu Province(BR2015043)+3 种基金Soft Science Research Item,Ministry of Agriculture(201531-1)National Soft Science Research Plan(2014GXQ4D184)Major Bidding Project of National Social Science Fund(13&ZD160)Construction Project Item of Dominant Subject of Jiangsu Colleges and Universities(PAPD)
文摘Adoption of new agricultural variety is an important way to improve the efficiency of agricultural production and farmer's income.According to survey data on the 279 farmers in Huaxia,Henan Province,this paper made an empirical analysis on influencing factors of the farmer's adoption behavior for new maize variety by using the binary Logistic model. The results showed that farmer's educational level,whether or not demonstration family,the main source of household income,the maize planting area,farmer's awareness of new variety,farmer's risk attitude as well as the times to contract with agricultural inspector all had significantly positive effects on adoption of new maize variety. Whether or not the family had cadres had significantly negative effect on the adoption of new maize variety.
基金Supported by China Agriculture Research System of MOF and MARA(CARS-14-1-12)Scientific and Technological Research Project in Key Areas of the Corps(2021AB011)Nine Division Science and Technology Planning Project(2021JS007)。
文摘This paper introduced the breeding process,characteristics,yield performance,disease resistance,quality characters,and suitable production areas of the new early-maturing oil sunflower variety"Xin Kui No.27",and summarized high-yield cultivation techniques based on large-area continuous cultivation demonstration to serve agricultural production.
文摘This study explored the medium for new variety of Asparagus——Linlu No.1 to induce germination, bud proliferation,and induce rootings and their formula. The result revealed that MS+6-BA 1.0 mg/L+NAA 0.05 mg/L is the suitable medium for germination; MS+6-BA 0.5 mg/L+NAA 0.5 mg/L is the medium fit for bud proliferation and 1/2MS+IBA 0.5 mg/L+KT 0.05 mg/L+sucrose 30 g/L is the perfect medium for rootings.
基金Excellent Talent Training Fund in Yanqing District,BeijingJinqiao Seed Project in Yanqing District,BeijingOrdos Science and Technology Program.
文摘With the development of the greenhouse grape cultivation area,the supporting greenhouse grape varieties appear to be single.At present,there are few researches on the selection of grape varieties suitable for two-harvest-a-year cultivation in greenhouses.In order to meet the needs of fruit growers for the diversity of greenhouse grape varieties,experimental studies had been carried out.Through three consecutive years of two-harvest-a-year production of six grape varieties of‘Jingxiangyu’,‘Ruidukemei’,‘Xiangfei’,‘Jingyan’,‘Zaomanao’and‘Hanxiangmi’,the first crop of greenhouse grapes matured from May to July,and the second crop matured during the New Year s Day and Spring Festival.Through the investigation and analysis of their phenological periods,fruit economic characteristics and economic benefits,it was found that the four varieties of‘Jingxiangyu’,‘Ruidukemei’,‘Xiangfei’and‘Jingyan’performed well under greenhouse cultivation conditions,and thus can be used as supporting fine varieties for large-scale promotion.
文摘[Objective]The paper was to seek new varieties of high quality conventional rice suitable for Yangjiang area,Guangdong Province,China.[Method]In 2017,introduction test was performed with seven new varieties of high-quality conventional rice approved by Guangdong Province in recent years,including Huangsilizhan,Guangjingruanzhan,Heliyouzhan,Huahang 48,Limiaozhan,Lvyinzhan,Yuehesimiao,to investigate the main agronomic traits and yield of all varieties tested.[Result]The comprehensive performance of Lvyinzhan,Guangjingruanzhan,Limiaozhan and Huahang 48 was outstanding,showing the characters of good yield,excellent rice quality and strong stress resistance.[Conclusion]Lvyinzhan,Guangjingruanzhan,Limiaozhan and Huahang 48 are suitable for large-scale demonstration and promotion in Yangjiang area.
基金National Key R&D Program of China(2020YFD1000600)Guangdong Provincial Team of Technical System Innovation for Sugarcane Sisal Hemp Industry(2019KJ104-15)Science and Technology Planning Project of Zhanjiang City(2019A01030).
文摘[Objectives]To study the breeding of a new sugarcane variety Yuetang 08776 suitable for mechanized production.[Methods]With Yuetang 96-86 as the female parent and Yuetang 99-66 as the male parent,Yuetang 08776 was bred by the Bioengineering Institute of Guangdong Academy of Sciences.It was approved as a non-major crop variety by the Ministry of Agriculture and Rural Affairs in December,2019.Through many years of multi-pilot trials,the characters,traits and disease resistance of Yuetang 08776 were investigated,and the key points of its cultivation technique were summarized.[Results]Yuetang 08776 is characterized by medium maturity,high sugar content,high and stable yield,strong cold and drought resistance,large number of effective stems,strong ratooning ability and lodging resistance.Yuetang 08776 has excellent agronomic traits,and has been identified as moderately resistant to smut and mosaic disease.The average cane yield of Yuetang 08776 was 119.89 t/ha,18.50 t/ha higher than that of CK,an increase of 18.25%.The average sugar yield was 17.15,2.11 t/ha higher than that of CK,an increase of 14.03%.The average sucrose content of Yuetang 08776 in the early period(November to December)was 13.20%,0.71 percentage points lower than that of CK;in the middle and late period(January to March of the following year),the average sucrose content was 15.23%,0.22 percentage points lower than that of CK;and the average sucrose content of the whole period was 14.21%,0.47 percentage points lower than that of CK.[Conclusions]Yuetang 08776 is a sugarcane variety with medium maturity,high sugar,high and stable yield,strong resistance and good ratooning.It is suitable for mechanized seeding,management and harvesting,and suitable for planting and popularizing in most sugarcane production areas of Guangdong,Guangxi and Yunnan.
基金Supported by China Agriculture Research System(CARS-28-28)Science and Technology Innovation Project of Hebei Academy of Agricultural and Forestry Sciences(2022KJCXZX-SGS-5)+1 种基金Hebei modern agricultural industrial technology system(HBCT2021210201)Hebei Key R&D Projects(21326308D)。
文摘‘Jixiu’is a new early ripening pear variety bred by‘Jimi’בXinhang’,and its fruit quality is excellent.It has performed well in central and southern Hebei.This paper introduces its botanical characteristics,growth phenology,growth and fruiting habits,pollination characteristics and disease resistance in central and southern Hebei.A set of suitable cultivation techniques for Jixiu pear were summarized,including pruning,fruit thinning and bagging,water and fertilizer management,pest and disease control and so on,which provided theoretical support for the popularization and demonstration of this new variety.
基金Supported by the National High Technology Research and Development Program of China(863 Program)(Nos.2012AA10A404,2012AA092205)
文摘Selective breeding of the Pacific white shrimp Litopenaeus vannamei during the last decade has produced new varieties exhibiting high growth rates and disease resistance.However,the identification of new varieties of shrimps from their phenotypic characters is difficult.This study introduces a new approach for identifying varieties of shrimps using molecular markers of microsatellites and mitochondrial control region sequences.The method was employed to identify a new selected variety,Kehai No.1(KH-1),from three representative stocks(control group):Zhengda;Tongwei;and a stock collected from Fujian Province,which is now cultured in China's Mainland.By pooled genotyping of KH-1 and the control group,five microsatellites showing differences between KH-1 and the control group were screened out.Individual genotyping data confirmed the results from pooled genotyping.The genotyping data for the five microsatellites were applied to the assignment analysis of the KH-1 group and the control group using the partial Bayesian assignment method in GENECLASS2.By sequencing the mitochondrial control regions of individuals from the KH-1 and control group,four haplotypes were observed in the KH-1 group,whereas14 haplotypes were obtained in the control group.By combining the microsatellite assignment analysis with mitochondrial control region analysis,the average accuracy of identification of individuals in the KH-1group and control group reached 89%.The five selected microsatellite loci and mitochondrial control region sequences were highly polymorphic and could be used to distinguish new selected varieties of L.vannamei from other populations cultured in China.
文摘Ⅱ-you 92: a new hybrid rice for late seasonⅡ-you 92 is an indica hybrid rice that was developed by Jinhua Agri Res Inst, Zhejiang Province.Ⅱ-you 92 has a suitable growth duration of 122-125 d as double-cropping late season rice, 3-4 dshorter than that of Shanyou 64 and 6-7 d shorter than Shanyou 10. It has a compact plant type, high tiller-ing ability and plant height of 85-90 cn. A number of 3.4-3.6 million effective panicles per ha can be