[Objective] The aim was to analyze yield stability of attar No.8, which is direct sowing and early-maturing. [Method] Analysis was made on yielding ability, stability and adaptability of attar No.8 in Yunnan Province ...[Objective] The aim was to analyze yield stability of attar No.8, which is direct sowing and early-maturing. [Method] Analysis was made on yielding ability, stability and adaptability of attar No.8 in Yunnan Province during 2006-2009 with DPS software and stability assessment was conducted on yield and major economic characters of the variety in different periods and experimental plots. [Result] Average yield of attar No.8 during three years in 24 plots achieved 3 379.17 kg/hm2; it grew tightly and is featured with early matureness. In addition, grain density, pod number and annul production differed little in different years and the variety in eight ecological conditions all showed high production potential, yielding ability and stability, which proved that attar No.8 is suitable to be grown in Yunnan and southern early-maturing areas in China. [Conclusion] The research provided references for selection and breeding of rapeseeds＇ variety which enjoys high and stable yield.展开更多
[Objective] The aim was to investigate the genetic diversity of the main commercial varieties of Brassica napus in Guizhou Province at the molecular level. [Method] Nine main commercial rapeseed cultivars in Guizhou w...[Objective] The aim was to investigate the genetic diversity of the main commercial varieties of Brassica napus in Guizhou Province at the molecular level. [Method] Nine main commercial rapeseed cultivars in Guizhou were detected by 40 pairs of SSR primers used in the national regional trial of B. napus, and then clus-tering analysis was carried out. [Result] A total of 191 bands were amplified, and 143 （accounting for 75%） of them showed polymorphism among the nine rapeseed cultivars. By cluster analysis, the nine cultivars were divided into two groups. Group A included seven varieties, and group B consisted of two cultivars from Guizhou In-stitute of Oil Crops. The cultivars in group A were further divided into sub-groups A1 and A2 at the similarity coefficient of 0.643 4. Sub-group A1 included three culti-vars from Guizhou Rapeseed Institute, and sub-group A2 included the other four cultivars from Guizhou Institute of Oil Crops. [Conclusion] The cultivars bred by the same institute had similar genetic background. The cultivars from Guizhou Institute of Oil Crops showed wider genetic basis. However, the genetic similarity coefficient between Qianyou 17 and Qianyou 29 was up to 0.87, suggesting that they shared closer genetic basis.展开更多
Shuangyou 092, a Brassica napus cultivar with high oil content, high quality and high yield, was bred by Institute of Industrial Crops of Henan Academy of Agricultural Sciences with Zhongshuang 9 as female parent, and...Shuangyou 092, a Brassica napus cultivar with high oil content, high quality and high yield, was bred by Institute of Industrial Crops of Henan Academy of Agricultural Sciences with Zhongshuang 9 as female parent, and the cytoplasmic male sterility maintainer line 32B as male parent. It was registered and released in 2014. The average yield was 2 858.5 kg/hm^2 in Henan province regional test of high quality, 12.43% higher than the check variety Fengyou 9 in 2010-2011 and 2011-2012. Its yield was 3 478.8 kg/ha in Henan Province productive test of high quality,9.52% higher than the check variety Fengyou 9 in 2012-2013. According to the test results in 2011-2012 and 2012-2013, the seeds quality of Shuangyou 092 was very good with near zero erucic acid （0.0%, 0.1%） in fat acid, 17.19 μmol/g and 19.78 μmol/g glucosinolates in its meal, the oil content of 46.60% and 45.76%. The cultivar was resistant （tolerant） to Sclerotinia, virus diseases, cold, and lodging. Its high yield and high quality can be obtained by planting in large scale, sowing at right time, rational close planting, balancing fertilizer and harvesting at right time.展开更多
[Objective] This study aimed to analyze the influence of six cultivation fac- tors： sowing date, plant density, nitrogen fertilizer amount, phosphate fertilizer amount, potash fertilizer amount and boron fertilizer a...[Objective] This study aimed to analyze the influence of six cultivation fac- tors： sowing date, plant density, nitrogen fertilizer amount, phosphate fertilizer amount, potash fertilizer amount and boron fertilizer amount on seed oil yield of Brassica napus. [Method] Statistical analysis was carried out based on the data from previous studies and our work. [Result] Oil yield shared a negative correlation with sowing date, a parabolic relationship with plant density mostly, parabolic rela- tionships with amount of applied nitrogen fertilizer and amount of applied boron fer- tilizer, straight-line relationships with amount of applied phosphate fertilizer and amount of applied potash fertilizer. The average amount of applied nitrogen fertilizer required to obtain the highest oil yield was 185.18 kg/hm2 for high-oil rape varieties （with oil content above 44.00%）, and under this condition, the average oil yield of low-oil rape varieties （with oil content below 42.00%） was 1 247.84 kg/hm2, while that of high-oil rape varieties was 1 442.60 kg/hm2, which was 15.61% more than the former. The average amount of applied nitrogen fertilizer required to obtain the highest oil yield for lower-oil rape varieties was 286.28 kg/hm2, and under this con- dition, the average oil yield of the low-oil rape varieties was 1 350.57 kg/hm2, while that of the high-oil varieties was 6.81% higher than it. There was a significant neg- ative correlation between rapeseed oil yield and the amount of applied nitrogen fer- tilizer to obtain the highest oil yield （0.980 0）. The optimum amount of applied ni- trogen, phosphate, potash and boron fertilizer were 187.5-195, 187.5-195, 105-120, 135-150 and 15-22.5 kg/hm2 for high-oil B. napus varieties. [Conclusion] This study determined the influence of sowing date, plant density and amount of applied nitro- gen fertilizer on oil yield of B. napus, and proposed an optimum cultivation pattern for high-oil varieties.展开更多
A new rapeseed TGMS line 402S has been bred through six years with seven generations by hybridization and systematic breeding.402S possesses the similar thermo-sensitive male sterility to its female parent Xiangyou 91...A new rapeseed TGMS line 402S has been bred through six years with seven generations by hybridization and systematic breeding.402S possesses the similar thermo-sensitive male sterility to its female parent Xiangyou 91S which performed fertile,partially sterile and sterile throughout the flowering stage,and resembles its male parent Zhongshuang 4 on agronomic traits.And 402S has the double-low (low erutic acid and low glucosinolate) quality like its original parents.展开更多
Thousand Seed Weight （TSW） is one of the major yield components of rapeseed （Brassica napus L.）. Here reports an extra-large seed germplasm GM01 which was obtained through isolated microspore culture. Three-way cr...Thousand Seed Weight （TSW） is one of the major yield components of rapeseed （Brassica napus L.）. Here reports an extra-large seed germplasm GM01 which was obtained through isolated microspore culture. Three-way cross was made： H8--a Yunnan spring early-maturing rapeseed variety, ＂Legeney＂--a Canadian canola variety and ＂020010＂--a semi-winter late-maturing rapeseed variety. One hundred and forty eight doubled hyploid lines were obtained from the F~ plants of three-way cross through isolated mierospore culture. Among them, the TSW of GM01 amounted to 8.68 g and the TSW of 53 lines were above 5.0 g. The TSWs of GM01 were relatively stable among the multi-location field trials from 2007 to 2014 with variation being only 10%-15% among the locations and years. Compared with H8, GM01 had larger flowers, stigmas, siliques and seed diameters, but less branches, siliques per plant and seeds per silique.展开更多
Augmented randomized complete block test was conducted to evaluate the heterosis of 80 hybrid combinations from TGMS line 402S and its original parent Xiangyou 91S,and the combining a-bility of 40 testcrossing lines.T...Augmented randomized complete block test was conducted to evaluate the heterosis of 80 hybrid combinations from TGMS line 402S and its original parent Xiangyou 91S,and the combining a-bility of 40 testcrossing lines.The results of identification test showed that among 47 combinations yielding over the control Xiangyou 15,17 ones with 402S and 3 ones with Xiangyou 91S overyielded more than 20%,reaching the significant level of 1 %;and among 51 combinations yielding over their corresponding higher yield parents,18 ones with 402S and 9 ones with Xiangyou 91S overyielded at 5% or 1% significant level.The test for the GCA effect of all parents indicated that 402S possessed a stronger combining ability than Xiangyou 91S on yield,ailiquae of main inflorescence,total siliquae per plant,seed yield of single plant and 1000 seed weight.10 testcrossing lines with high GCA were picked out for next testcrosses.Among 8 agronomic traits,total siliquae per plant and seed yield of single plant were regarded as the key selecting indexes according to the correlation analysis between yield and the agronomic traits on heterosis and on the GCA effect of all parents.展开更多
基金Supported by National Key Technology Research and Development Program of the Ministry of Science and Technology of China(2010BAD01B08)Yunnan Programs for Science and Technology Development(2011BB010)+2 种基金Fund for Fostering Talents in Yunnan Province(2011CI062)National Program of Modern Industrial Technology System of Rapeseed(NYCYTX-00564)Program of Modern Industrial Technology System of Rapeseed in Yunnan Province~~
文摘[Objective] The aim was to analyze yield stability of attar No.8, which is direct sowing and early-maturing. [Method] Analysis was made on yielding ability, stability and adaptability of attar No.8 in Yunnan Province during 2006-2009 with DPS software and stability assessment was conducted on yield and major economic characters of the variety in different periods and experimental plots. [Result] Average yield of attar No.8 during three years in 24 plots achieved 3 379.17 kg/hm2; it grew tightly and is featured with early matureness. In addition, grain density, pod number and annul production differed little in different years and the variety in eight ecological conditions all showed high production potential, yielding ability and stability, which proved that attar No.8 is suitable to be grown in Yunnan and southern early-maturing areas in China. [Conclusion] The research provided references for selection and breeding of rapeseeds＇ variety which enjoys high and stable yield.
基金Supported by Special Fund for Seed Breeding from Guizhou Provincial Agricultural Committee[(2012)026]Agricultural Science and Technology Research Program of Department of Science and Technology of Guizhou Province[(2013)3003]+1 种基金Agricultural Science and Technology Research Program of Department of Science and Technology of Guizhou Province[(2013)3088]a grant from the Central Authorities of China for Supporting Local Platform Construction[(2011)4001]~~
文摘[Objective] The aim was to investigate the genetic diversity of the main commercial varieties of Brassica napus in Guizhou Province at the molecular level. [Method] Nine main commercial rapeseed cultivars in Guizhou were detected by 40 pairs of SSR primers used in the national regional trial of B. napus, and then clus-tering analysis was carried out. [Result] A total of 191 bands were amplified, and 143 （accounting for 75%） of them showed polymorphism among the nine rapeseed cultivars. By cluster analysis, the nine cultivars were divided into two groups. Group A included seven varieties, and group B consisted of two cultivars from Guizhou In-stitute of Oil Crops. The cultivars in group A were further divided into sub-groups A1 and A2 at the similarity coefficient of 0.643 4. Sub-group A1 included three culti-vars from Guizhou Rapeseed Institute, and sub-group A2 included the other four cultivars from Guizhou Institute of Oil Crops. [Conclusion] The cultivars bred by the same institute had similar genetic background. The cultivars from Guizhou Institute of Oil Crops showed wider genetic basis. However, the genetic similarity coefficient between Qianyou 17 and Qianyou 29 was up to 0.87, suggesting that they shared closer genetic basis.
文摘Shuangyou 092, a Brassica napus cultivar with high oil content, high quality and high yield, was bred by Institute of Industrial Crops of Henan Academy of Agricultural Sciences with Zhongshuang 9 as female parent, and the cytoplasmic male sterility maintainer line 32B as male parent. It was registered and released in 2014. The average yield was 2 858.5 kg/hm^2 in Henan province regional test of high quality, 12.43% higher than the check variety Fengyou 9 in 2010-2011 and 2011-2012. Its yield was 3 478.8 kg/ha in Henan Province productive test of high quality,9.52% higher than the check variety Fengyou 9 in 2012-2013. According to the test results in 2011-2012 and 2012-2013, the seeds quality of Shuangyou 092 was very good with near zero erucic acid （0.0%, 0.1%） in fat acid, 17.19 μmol/g and 19.78 μmol/g glucosinolates in its meal, the oil content of 46.60% and 45.76%. The cultivar was resistant （tolerant） to Sclerotinia, virus diseases, cold, and lodging. Its high yield and high quality can be obtained by planting in large scale, sowing at right time, rational close planting, balancing fertilizer and harvesting at right time.
基金Supported by Earmarked Fund for Modern Rapeseed Research System of China(nycytx-00563)High-oil Hybrid Brassica napus Rapeseed Cultivation Technology Research Program of Guizhou Academy of Agricultural Sciences[ZX(2007)015]+3 种基金Hybrid Rapeseed Cultivar Yoyan 599 Promotion Program of Guizhou Academy of Agricultural Sciences[(2009)030]New High-yield Rapeseed Cultivar Yoyan 599 Cultivation and Promotion Program of Agriculture department of Guizhou Province[(2009)007]New High-oil Rapeseed Cultivar Sanbei 98 Cultivation and Promotion Program of Agriculture Department of Guizhou Province[(2010)3087]Earmarked Fund for Modern Rapeseed Research System of Guizhou Province(GZCYTX2013-0802)~~
文摘[Objective] This study aimed to analyze the influence of six cultivation fac- tors： sowing date, plant density, nitrogen fertilizer amount, phosphate fertilizer amount, potash fertilizer amount and boron fertilizer amount on seed oil yield of Brassica napus. [Method] Statistical analysis was carried out based on the data from previous studies and our work. [Result] Oil yield shared a negative correlation with sowing date, a parabolic relationship with plant density mostly, parabolic rela- tionships with amount of applied nitrogen fertilizer and amount of applied boron fer- tilizer, straight-line relationships with amount of applied phosphate fertilizer and amount of applied potash fertilizer. The average amount of applied nitrogen fertilizer required to obtain the highest oil yield was 185.18 kg/hm2 for high-oil rape varieties （with oil content above 44.00%）, and under this condition, the average oil yield of low-oil rape varieties （with oil content below 42.00%） was 1 247.84 kg/hm2, while that of high-oil rape varieties was 1 442.60 kg/hm2, which was 15.61% more than the former. The average amount of applied nitrogen fertilizer required to obtain the highest oil yield for lower-oil rape varieties was 286.28 kg/hm2, and under this con- dition, the average oil yield of the low-oil rape varieties was 1 350.57 kg/hm2, while that of the high-oil varieties was 6.81% higher than it. There was a significant neg- ative correlation between rapeseed oil yield and the amount of applied nitrogen fer- tilizer to obtain the highest oil yield （0.980 0）. The optimum amount of applied ni- trogen, phosphate, potash and boron fertilizer were 187.5-195, 187.5-195, 105-120, 135-150 and 15-22.5 kg/hm2 for high-oil B. napus varieties. [Conclusion] This study determined the influence of sowing date, plant density and amount of applied nitro- gen fertilizer on oil yield of B. napus, and proposed an optimum cultivation pattern for high-oil varieties.
文摘A new rapeseed TGMS line 402S has been bred through six years with seven generations by hybridization and systematic breeding.402S possesses the similar thermo-sensitive male sterility to its female parent Xiangyou 91S which performed fertile,partially sterile and sterile throughout the flowering stage,and resembles its male parent Zhongshuang 4 on agronomic traits.And 402S has the double-low (low erutic acid and low glucosinolate) quality like its original parents.
文摘Thousand Seed Weight （TSW） is one of the major yield components of rapeseed （Brassica napus L.）. Here reports an extra-large seed germplasm GM01 which was obtained through isolated microspore culture. Three-way cross was made： H8--a Yunnan spring early-maturing rapeseed variety, ＂Legeney＂--a Canadian canola variety and ＂020010＂--a semi-winter late-maturing rapeseed variety. One hundred and forty eight doubled hyploid lines were obtained from the F~ plants of three-way cross through isolated mierospore culture. Among them, the TSW of GM01 amounted to 8.68 g and the TSW of 53 lines were above 5.0 g. The TSWs of GM01 were relatively stable among the multi-location field trials from 2007 to 2014 with variation being only 10%-15% among the locations and years. Compared with H8, GM01 had larger flowers, stigmas, siliques and seed diameters, but less branches, siliques per plant and seeds per silique.
文摘Augmented randomized complete block test was conducted to evaluate the heterosis of 80 hybrid combinations from TGMS line 402S and its original parent Xiangyou 91S,and the combining a-bility of 40 testcrossing lines.The results of identification test showed that among 47 combinations yielding over the control Xiangyou 15,17 ones with 402S and 3 ones with Xiangyou 91S overyielded more than 20%,reaching the significant level of 1 %;and among 51 combinations yielding over their corresponding higher yield parents,18 ones with 402S and 9 ones with Xiangyou 91S overyielded at 5% or 1% significant level.The test for the GCA effect of all parents indicated that 402S possessed a stronger combining ability than Xiangyou 91S on yield,ailiquae of main inflorescence,total siliquae per plant,seed yield of single plant and 1000 seed weight.10 testcrossing lines with high GCA were picked out for next testcrosses.Among 8 agronomic traits,total siliquae per plant and seed yield of single plant were regarded as the key selecting indexes according to the correlation analysis between yield and the agronomic traits on heterosis and on the GCA effect of all parents.
