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SWOT Analysis of Industrial Development of Double-low Rapeseed in Hubei Province 被引量:1
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作者 XIONG Qiu-fang,SUN Xiu-li National Research Center of Rapeseed Engineering and Technology,Huazhong Agricultural University,Wuhan 430070,China 《Asian Agricultural Research》 2011年第5期15-18,37,共5页
Based on SWOT analysis method,this paper conducts analysis on the industrial development environment of double-low rapeseed in Hubei Province from the following four aspects,in order to crystallize its resources advan... Based on SWOT analysis method,this paper conducts analysis on the industrial development environment of double-low rapeseed in Hubei Province from the following four aspects,in order to crystallize its resources advantage and disadvantage and make it know the opportunities and challenges that it is faced by.First,advantage analysis:excellent geographic conditions,vigorous government support,powerful scientific research force,sound industrial system support;second,disadvantage analysis:poor quality,low-level fine and deep processing,scant publicity and promotion,lagged infrastructure conditions,shortage of effective market access mechanism and sound industry regulation,no brand effect;opportunity analysis:the opportunities brought by low-carbon economy,the opportunities brought by consumers' preference,the opportunities brought by policy environment,the opportunities brought by establishment of strategic union;threat analysis:fierce external competition,continuous decline of comparative benefit.The results of research show that in order to promote industrial development of double-low rapeseed in Hubei Province,we should implement brand effect strategy,quality management strategy and strategy of deepening industrial system,give full play to existing geographic advantage and other advantages,grasp scarce opportunities and actively confront challenges. 展开更多
关键词 HUBEI PROVINCE double-low rape INDUSTRY SWOT analy
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Mechanical Harvesting Effects on Seed Yield Loss,Quality Traits and Profitability of Winter Oilseed Rape (Brassica napus L.) 被引量:13
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作者 MA Ni ZHANG Chun-lei +4 位作者 LI Jun ZHANG Ming-hai CHENG Yu-gui LI Guang-ming ZHANG Shu-jie 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2012年第8期1297-1304,共8页
China is one of the most important rapeseed producing countries in the world. Effective mechanical harvesting time for decreasing harvesting loss of winter oilseed rape has been becoming a critical factor. An elite cu... China is one of the most important rapeseed producing countries in the world. Effective mechanical harvesting time for decreasing harvesting loss of winter oilseed rape has been becoming a critical factor. An elite cultivar Zhongshuang 11 (Brassica napus L.) was employed in two rounds of field experiments from 2009 to 2011. Seeds were sown with machine, three combine harvesting times namely combine harvesting A, B, and C (CHA, CHB, and CHC) were designed and manual harvesting (MH) as control was performed at maturity. The harvesting treatments were determined according to color of pod and seed in the field. Seed yield loss and quality in different treatments were evaluated. Results showed that both seed yields and harvesting losses in 2009-2010 were higher than that in 2010-2011, whereas seed oil contents in 2010-2011 were higher than that in 2009-2010. The highest yield appeared in CHB, which was significantly higher than that in MH. Furthermore, harvesting loss in CHB were 50% that in MH. Seed oil content and chlorophyll exhibited no obvious difference between CHB and MH. Economic profit analysis demonstrated that mechanical sowing/combine harvesting (MS/CH) showed an input/output ratio of 1:1.6, and it was 1:1.2 in mechanical sowing/manual harvesting (MS/MH). Labor-cost accounted for more than 70% of the total cost in MS/MH, which led to low profitability to a great extent. Our results suggested that CHB was the optimum harvesting time for winter oilseed rape along the Yangtze River. 展开更多
关键词 winter oilseed rape (Brassica napus L.) combine harvesting harvesting loss seed quality economic profit
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Nutrient deficiency limits population development,yield formation,and nutrient uptake of direct sown winter oilseed rape 被引量:12
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作者 WANG Yin LIU Tao +3 位作者 LI Xiao-kun REN Tao CONG Ri-huan LU Jian-wei 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2015年第4期670-680,共11页
Direct-sowing establishment method has great significance in improving winter oilseed rape(Brassica napus L.) production and guaranteeing edible oil security in China. However, nutrient responses on direct sown wint... Direct-sowing establishment method has great significance in improving winter oilseed rape(Brassica napus L.) production and guaranteeing edible oil security in China. However, nutrient responses on direct sown winter oilseed rape(DOR) performance and population development dynamic are still not well understood. Therefore, five on-farm experiments were conducted in the reaches of the Yangtze River(RYR) to determine the effects of nitrogen(N), phosphorus(P), and potassium(K) deficiencies on population density, dry matter production, nutrient uptake, seed yield, and yield components of DOR plants. Four fertilization treatments included the balanced NPK application treatment(NPK, 180 kg N, 39.3 kg P, 100 kg K, and 1.8 kg borax ha–1) and three nutrient deficiency treatments based on the NPK treatment, i.e., –N, –P, and –K. The results indicated that DOR population density declined gradually throughout the growing season, especially at over-wintering and pod-development stages. Nutrient deficiency decreased nutrient concentration in DOR plants, limited dry matter production and nutrient uptake, and thereby exacerbated density reduction during plants growth. The poor individual growth and reduced population density together decreased seed yield in the nutrient deficiency treatment. Averaged across all the experiments, seed yield reduced 61% by N deficiency, 38.3% by P deficiency, and 14.4% by K deficiency. The negative effects of nutrient deficiency on DOR performances followed the order of –N–P–K, and the effects were various among different nutrient deficiencies. Although N deficiency improved DOR emergence, but it seriously limited dry matter production and nutrient uptake, which in turn led to substantial plants death and therefore resulted in a very low harvested density. The P deficiency significantly reduced initial density, limited plants growth, and exacerbated density reduction. The K deficiency mainly decreased individual growth and yield, but did not affect density dynamic. Our results highlighted the importance of balanced NPK application in DOR production, suggesting that management strategy of these nutrients should be comprehensively considered with an aim to build an appropriate population structure with balanced plant density and individual growth. 展开更多
关键词 oilseed rape(Brassica napus L.) direct-sowing nutrient deficiency population density seed yield yield components nutrient uptake
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Ridge-furrow rainwater harvesting with supplemental irrigation to improve seed yield and water use efficiency of winter oilseed rape(Brassica napus L.) 被引量:2
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作者 GU Xiao-bo LI Yuan-nong +1 位作者 DU Ya-dan YIN Min-hua 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2017年第5期1162-1172,共11页
Ridge-furrow rainwater harvesting (RFRH) planting pattern can lessen the effect of water deficits throughout all crop growth stages, but water shortage would remain unavoidable during some stages of crop growth in a... Ridge-furrow rainwater harvesting (RFRH) planting pattern can lessen the effect of water deficits throughout all crop growth stages, but water shortage would remain unavoidable during some stages of crop growth in arid and semiarid areas. Supplemental irrigation would still be needed to achieve a higher production. Field experiments were conducted for two growing seasons (2012-2013 and 2013-2014)to determine an appropriate amount of supplemental irrigation to be applied to winter oilseed rape at the stem-elongation stage with RFRH planting pattern. Four treatments, including supplemental irrigation amount of 0 (I1), 60 mm (I2) and 120 mm (I3) with RFRH planting pattern and a control (CK) irrigated with 120 mm with flat planting pattern, were set up to evaluate the effects of supplemental irrigation on aboveground dry matter (ADM), nitrogen nutrition index (NNI), radiation use efficiency (RUE), water use efficiency (WUE), and seed yield and oil content of the oilseed rape. Results showed that supplemental irrigation improved NNI, RUE, seed yield and oil content, and WUE. However, the NNI, RUE, seed yield and oil content, and WUE did not increase significantly or even showed a downward trend with excessive irrigation. Seed yield was the highest in 13 for both growing seasons. Seed yield and WUE in 13 averaged 3235 kg ha^-1 and 8.85 kg ha^-1 mm-1, respectively. The highest WUE was occurred in 12 for both growing seasons. Seed yield and WUE in 12 averaged 3089 kg ha^-1 and 9.63 kg ha^-1 mm^-1, respectively. Compared to 13, 12 used 60 mm less irrigation amount, had an 8.9% higher WUE, but only 4.5 and 0.4% lower seed yield and oil content, respectively. 12 saved water without substantially sacrificing yield or oil content, so it is recommended as an appropriate cultivation and irrigation schedule for winter oilseed rape at the stem-elongation stage. 展开更多
关键词 ridge-furrow rainwater harvesting (RFRH) supplemental irrigation winter oilseed rape seed yield oil content water use efficience (WUE)
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Effects of imidacloprid and thiamethoxam as seed treatments on the early seedling characteristics and aphid-resistance of oilseed rape 被引量:5
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作者 HUANG Liang ZHAO Chun-lin +4 位作者 HUANG Fang BAI Run-e Lü Yao-bin YAN Feng-ming HAO Zhong-ping 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2015年第12期2581-2589,共9页
Seed treatments with the neonicotinoid insecticides imidacloprid and thiamethoxam were evaluated to determine whether the chemicals at effective concentrations for aphid control would influence the germination and ear... Seed treatments with the neonicotinoid insecticides imidacloprid and thiamethoxam were evaluated to determine whether the chemicals at effective concentrations for aphid control would influence the germination and early growth of oilseed rape,Brassica napus.Treatment with imidacloprid or thiamethoxam did not affect the cumulative germination rate,but significantly inhibited establishment potential by suppressing root system development in the cotyledon stage.However,these alterations in seedling development in the thiamethoxam-treated seeds appeared not to be detrimental as leaves developed;in contrast,for the seedlings with imidacloprid as seed treatment agent,a significantly decreased shoot/root ratio was still evident at the late two-leaf stage.After two leaves developed,chlorophyll content per leaf in the thiamethoxam treatment was significantly higher than that of the control,while chlorophyll content per leaf in the imidacloprid treatment remained close to that in the control.Most other parameters,i.e.,height,leaf area,weight of stem,leaf or root,and other growth indexes,between the treatments and the control showed no significant difference.Additionally,it was found that storage time of the treated seeds had a significant effect on cumulative germination rate.Treatment 30 d before planting significantly reduced germination relative to that of the control.All of the plants treated with neonicotinoids were shown to have significant anti-aphid characteristics that persisted until the end of the trial. 展开更多
关键词 oilseed rape seed coating agent imidacloprid thiamethoxam seedling growth germination aphid
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De novo design of future rapeseed crops:Challenges and opportunities 被引量:2
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作者 Shengyi Liu Harsh Raman +3 位作者 Yang Xiang Chuanji Zhao Junyan Huang Yuanyuan Zhang 《The Crop Journal》 SCIE CSCD 2022年第3期587-596,共10页
To address the global demand for rapeseed while considering farmers’profit,we face the challenges of making a quantum leap in seed yield and,at the same time,reducing yield loss due to biotic and abiotic stresses.We ... To address the global demand for rapeseed while considering farmers’profit,we face the challenges of making a quantum leap in seed yield and,at the same time,reducing yield loss due to biotic and abiotic stresses.We also face the challenge of efficiently applying new transformative biotechnology tools such as gene editing and breeding by genome design to increase rapeseed productivity and profitability.In this Perspective,we review advances in research on the physiological and genetic bases of both stress factorsaffected yield stability and seed yield potential,focusing on source–sink relationships and allocation of photosynthetic assimilates to vegetative growth and seed development.We propose research directions and highlight the role of plant architecture in the relative contributions of the root system,leaves,and pods to seed yield.We call for de novo design of new rapeseed crops.We review trait variation in existing germplasm and biotechnologies available for crop design.Finally,we discuss opportunities to apply fundamental knowledge and key germplasm to rapeseed production and propose an ideotype for de novo design of future rapeseed cultivars. 展开更多
关键词 Oilseed rape seed yield Stress tolerance Physiological basis IDEOTYPE Gene editing Breeding by genome design
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Responses of Seed Yield and Economic Benefit of Winter Oilseed Rape(Brassica napus L.) to Different NPK Ratio and Dose 被引量:2
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作者 Yingzi WANG Chang TIAN +5 位作者 Xuan ZHOU Wenming WANG Jianwei PENG Zhenhua ZHANG Haixing SONG Chunyun GUAN 《Agricultural Science & Technology》 CAS 2015年第11期2361-2366,共6页
Field experiments were conducted during 2008-2010 to investigate the ef- fects of NPK fertilization on seed yield and economic benefit of a new hybrid cultivar of winter oilseed rape (Brassica napus L.) - Xiangzayou... Field experiments were conducted during 2008-2010 to investigate the ef- fects of NPK fertilization on seed yield and economic benefit of a new hybrid cultivar of winter oilseed rape (Brassica napus L.) - Xiangzayou763, and to determine the optimum NPK ratio and dose in Hunan, China. The results showed that NPK ratio (1:0.50:0.50) with 180 kg/hm2 N, 90 kg/hm2 P2O5 and 90 kg/hm2 K20 was the optimum combination for the highest seed yield (2 231.13 kg/hm2) and economic benefit (9 816.97 Yuan/hm2), of which 1 641.23 Yuan/hm2 being set for fertilizer in- vestment (VCR=4.11). Besides, the effects of N, P and K fertilizers on seed yield and oil production of winter oilseed rape were not identical. N had the greatest ef- fect on plant growth of winter oilseed rape, followed by P and K. Total leaf number, green leaf number, leaf length and width, rhizome diameter, branch number, dry weight per plant and other agronomic characters in high N treatments were higher than those in low N treatments. By correlation and path analysis of yield components, the contribution rate to seed yield was found: effective silique number per plant〉seed number per silique〉l 000-seed weight. 展开更多
关键词 NPK ratio anddose seed yield Economic benefit Winter oilseed rape
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Effects of harvesting method and date on yield loss and seed quality of rapeseed 被引量:3
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作者 Min Zhang Chongyou Wu +3 位作者 Mei Jin Senlin Mu Suning Liang Qing Tang 《Oil Crop Science》 2019年第3期166-174,共9页
China is one of the major rapeseed production countries in the world,but harvesting mechanization was still backward,and high harvest loss was a key inhibiting factor for rapeseed production.To obtain optimum harvesti... China is one of the major rapeseed production countries in the world,but harvesting mechanization was still backward,and high harvest loss was a key inhibiting factor for rapeseed production.To obtain optimum harvesting date for winter rape in the Yangtze River Valley of China,artificial simulated combine harvesting and artificial two-stage harvesting were adopted to find correlations between harvesting date,rape variety,seed oil content,protein content,grain moisture rate,rapeseed straw moisture content,rapeseed unthreshing rate,grain drop loss rate,thousand seeds weight(TSW),and harvesting economic coefficient(HEC).Analysis of variance showed that rapeseed oil content,protein content and TSW were correlated with rape variety;HEC was correlated with harvesting method and rape variety.Rape variety was the dominant factor of rapeseed oil content,protein content,TSW and HEC.Grain moisture rate,un-threshing rate,grain drop loss rate and straw moisture content were correlated with harvesting method and date.Harvesting date was the dominant factor of rapeseed moisture rate,un-threshing rate,grain drop loss rate and straw moisture rate.Single factor tests further proved that harvesting date had less impact on rapeseed oil content,protein content,TSW and HEC.It showed little correlation with rapeseed quality except grain moisture rate.The optimum harvesting date could be known by change in straw moisture content.The combined harvesting should be carried out during the grain moisture content of 15%-20%with TSW stabilized in the highest level.The twostage harvesting cutting should be carried out at the grain moisture content of 35%-40%.This research offered a reference to harvesting method and date for rape cultivated in the Yangtze River Valley. 展开更多
关键词 winter OILseed rape (Brassica NAPUS L.) COMBINE HARVESTING two-stageharvesting yield loss seed quality
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Effects of Nitrogen Application Rate and Seeding Density on Plant Growth and Seed Yield of Direct-seeding Rape
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作者 Tengfang LAN Youyuan WANG +3 位作者 Mingxiang ZHU Lu XIONG Yin HAN Shuo XIAO 《Agricultural Biotechnology》 CAS 2018年第4期153-156,共4页
[Objectives] This study was conducted to explore the effects of different N application rates and densities on the growth and development of direct-seeding rape as well as on its yield.[Methods] A field experiment was... [Objectives] This study was conducted to explore the effects of different N application rates and densities on the growth and development of direct-seeding rape as well as on its yield.[Methods] A field experiment was carried out by setting five N fertilizer treatments and three density levels.[Results] Increasing seeding density and N application rate could improve the seed yield of rape. The suitable N application rate for the three densities were calculated using the fitted fertilizer efficiency models, respectively, to be 186.77, 221.35 and 236.14 kg/hm^2, at which the yields were the highest. The results showed that in this area, the seeding density of direct-seeding rape could be selected in the range of 6.0×10^5-7.5×10^5 plants/hm^2, and the suitable N application rate could be in the range of 221.35-236.14 kg/hm^2.[Conclusions] This study provides a theoretical basis for the maximization of spatial resource and efficient utilization of fertilizer. 展开更多
关键词 N application rate seeding density Direct-seeding rape Fertilizer response model
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Brassinosteroids promote seed development and physiological maturity of oilseed rape (Brassica napus L.)
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作者 Lin Wan Fengqi Zhang +4 位作者 Liyan Zhang Lixin Liu Chang Chen Ni Ma Chunlei Zhang 《Oil Crop Science》 2017年第2期122-130,共9页
Long developmental stage and late harvest time of winter rapeseed (Brassica napus L.) have great negative effects on rice planting of rice-rapeseed farming system in China. Early maturity improvement of rapeseed is ne... Long developmental stage and late harvest time of winter rapeseed (Brassica napus L.) have great negative effects on rice planting of rice-rapeseed farming system in China. Early maturity improvement of rapeseed is necessary. ‘Zhongshuang 11’, an elite winter rapeseed cultivar, was used in consecutive field experiments during 2010-2012. At initial flowering stage, plants were consecutively sprayed with 0.1 mg/L 2-4-Epibrassinolide(BR) for 3 d. Two hundred sampling pods from different plants were randomly collected to measure seed related indexes with a 4 d interval from 7 to 47 d after peak anthesis (DAPA).Seed color turned light brown at 31 or 35 DAPA after BR treatment, seed dry weight (DWT)was increased while seed moisture content (SMC) was decreased during seed development.DWT almost reached the maximum value when SMC was 33.20% at 31 DAPA in 2010-2011 and 35.29% at 35 DAPA in 2011-2012 growing season after BR treatment. Similarly,the maximum values of standard germination test (SGT), accelerated aging test (AAT)and cold test (CT) were observed at 31 or 35 DAPA after BR treatment respectively. The high yield and seed oil content appeared at 31 or 35 DAPA accompanied with rapid decrease in total non-structural carbohydrate (TNC) in stems and leaves. Our study indicated that BR application advanced maturity of winter rapeseed by 4 to 8 days. 展开更多
关键词 winter OILseed rape (B. NAPUS L.) BRASSINOSTEROIDS early MATURITY seed production seed quality
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油菜高速机械离心式集排器设计与试验
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作者 廖庆喜 沈文惠 +3 位作者 王磊 霍佳琪 罗湛程 廖宜涛 《农业机械学报》 EI CAS CSCD 北大核心 2024年第7期154-167,共14页
针对传统油菜机械离心式集排器高速作业时供种及投种能力不足,导致排种量与作业速度不匹配、排种性能不稳定等问题,设计了一种被动式供种、“圆孔+渐变孔柱”组合式型孔投种的油菜高速机械离心式集排器。构建了供种、投种过程中的力学模... 针对传统油菜机械离心式集排器高速作业时供种及投种能力不足,导致排种量与作业速度不匹配、排种性能不稳定等问题,设计了一种被动式供种、“圆孔+渐变孔柱”组合式型孔投种的油菜高速机械离心式集排器。构建了供种、投种过程中的力学模型,分析确定了影响排种性能的关键结构参数;利用EDEM离散元仿真开展了供种调节高度对供种速率调节量影响的试验,结果表明当供种调节高度为3~8 mm时,供种速率在64.95~357.54 g/min范围内可调;采用两因素三水平正交试验分析了限种套筒下摆高度及倾角对初始种量、临界转速及环状种层最大高度的影响。通过台架试验确定了较优限种套筒结构参数,结合高速摄影对比了5种型孔结构下动锥体转速与排种量关系,确定最优型孔结构为“圆孔+渐变孔柱”组合式型孔。较优参数组合集排器排种性能验证试验结果表明:当转速为115~205 r/min时,排种速率为60.96~355.76 g/min,油菜各行排量一致性变异系数均低于5.2%,总排量稳定性变异系数均低于1.3%,破损率低于0.5%,满足作业速度6~12 km/h时的排种量要求。田间试验结果表明,当机组作业速度为7.89、11.98 km/h时,油菜各行植株均匀性变异系数低于11%,种植密度为43~58株/m^(2),满足油菜精量播种要求。 展开更多
关键词 油菜 高速机械离心式集排器 型孔结构 离散元仿真
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中国油菜种业发展现状与对策研究
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作者 惠成章 赵丽丽 刘爱群 《园艺与种苗》 CAS 2024年第2期92-94,共3页
油菜种业作为食用油产业链上游的关键链条,其稳定健康发展对于保障我国植物油供给安全至关重要。该文从品种选育与保护、种子生产与推广、种子市场规模等方面对我国油菜种业发展现状进行全面阐述,深刻分析我国油菜种业发展存在的优异种... 油菜种业作为食用油产业链上游的关键链条,其稳定健康发展对于保障我国植物油供给安全至关重要。该文从品种选育与保护、种子生产与推广、种子市场规模等方面对我国油菜种业发展现状进行全面阐述,深刻分析我国油菜种业发展存在的优异种质资源创新利用不足、突破性新品种缺乏、现有育种技术落后等问题,并从加大优异种质资源挖掘与创新利用、加快突破性新品种选育、加速现代油菜育种技术跨越式发展等方面提出推动我国油菜种业发展的政策建议。 展开更多
关键词 油菜种业 产业发展 政策建议
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长江中游地区不同钾肥用量对油菜生物量、产量和养分吸收利用的影响 被引量:1
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作者 陈森用 汤杨 +7 位作者 张兵兵 刘海疆 熊飞 徐凯旋 魏武 游庆 鲁明星 石磊 《中国油料作物学报》 CAS CSCD 北大核心 2024年第2期312-323,共12页
2021~2022年在长江中游地区湖北省武汉市江夏区开展田间试验,研究不同氯化钾施用量对油菜苗期及成熟期生物量、产量和养分吸收分配的影响。试验设置6个氯化钾施用量处理,分别为K_(0)(K_(2)O 0 kg/hm^(2))、K_(30)(K_(2)O30 kg/hm^(2))、... 2021~2022年在长江中游地区湖北省武汉市江夏区开展田间试验,研究不同氯化钾施用量对油菜苗期及成熟期生物量、产量和养分吸收分配的影响。试验设置6个氯化钾施用量处理,分别为K_(0)(K_(2)O 0 kg/hm^(2))、K_(30)(K_(2)O30 kg/hm^(2))、K_(60)(K_(2)O 60 kg/hm^(2))、K_(90)(K_(2)O 90 kg/hm^(2))、K_(120)(K_(2)O 120 kg/hm^(2))和K_(150)(K_(2)O 150 kg/hm^(2))。结果表明,在一定范围内,随着钾肥用量的提高,油菜苗期以及成熟期各部位生物量和产量显著增加,其中最高增产量和增产率分别为1199.6 kg/hm^(2)和57.2%。当施钾量超过120 kg/hm^(2)后油菜生物量和产量均不再显著增加。油菜苗期以及成熟期各部位钾含量随着钾肥用量的增加而显著提高,氮含量均无显著变化,但成熟期籽粒中的磷含量随着施钾量的提高而显著增加。钾肥偏生产力随着钾肥用量的提高而显著降低,但钾肥农学利用率、生理利用率、表观利用率以及收获指数均在施钾量为90 kg/hm^(2)时达到最大,随后逐渐减小。经济效益分析表明施钾量为120 kg/hm^(2)时产投比和净收入达到最大,再继续增加钾肥用量经济效益反而会降低,结合线性加平台方程拟合结果该地区实现经济效益最大化的推荐施钾量为114.6 kg/hm^(2)。综上,合理施用钾肥能够显著提升油菜生物量、氮、磷和钾等养分积累量,提升株高、一级分枝数和角果数,实现增产和最大经济效益。 展开更多
关键词 钾肥 油菜 生物量 钾含量 钾积累量 产量 经济效益
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微量元素在油菜种子引发中的调控作用及实用性
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作者 邓凤玲 李春生 顾建伟 《湖北农业科学》 2024年第6期5-11,21,共8页
为了提高油菜(Brassica napus L.)种子活力以增强种子萌发和幼苗阶段的抗逆性,试验通过响应面分析方法对不同微量元素组合间效应进行比较分析,得出对油菜种子活力提升效果最佳的元素组合,并进一步验证了该组合对不同油菜品种生长发育和... 为了提高油菜(Brassica napus L.)种子活力以增强种子萌发和幼苗阶段的抗逆性,试验通过响应面分析方法对不同微量元素组合间效应进行比较分析,得出对油菜种子活力提升效果最佳的元素组合,并进一步验证了该组合对不同油菜品种生长发育和最终产量的影响。结果表明,Se(5.0 mg/L)、B(5.0 mg/L)、Zn(100.0 mg/L)、Mo(1.0 mg/L)对油菜种子萌发均具有明显的促进作用;响应面分析得出最佳微量元素配比组合为Se(6.7 mg/L)+B(7.5 mg/L)+Zn(82.3 mg/L)+Mo(4.6 mg/L),在此配比组合处理下,幼苗期可溶性蛋白质的累积量提高且幼苗的抗逆性也有明显增强;不同品种中的应用试验证明该配比组合处理可显著提高其单株产量(P<0.05)。 展开更多
关键词 油菜(Brassica napus L.) 种子引发 种子活力 微量元素 产量
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油菜“宽垄间距-垄作垄收”机械化生产试验研究
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作者 李英 陈雪飞 +10 位作者 赵立军 彭维钦 万玉华 李强 许颖 黎斌 唐立超 舒黎辉 王明明 罗春明 李尚 《农机化研究》 北大核心 2024年第8期186-190,共5页
为研究“普通平作”模式与“宽垄间距-垄作垄收”模式对油菜主要农艺性状及产量性状的影响,为探究油菜机械化生产的最佳种植模式提供技术参考,以重庆市农业科学院水稻研究所提供的庆油3号为材料,测定“普通平作”与“宽垄间距-垄作垄收... 为研究“普通平作”模式与“宽垄间距-垄作垄收”模式对油菜主要农艺性状及产量性状的影响,为探究油菜机械化生产的最佳种植模式提供技术参考,以重庆市农业科学院水稻研究所提供的庆油3号为材料,测定“普通平作”与“宽垄间距-垄作垄收”两种种植模式下油菜机械化生产的主要农艺性状及产量性状,并比较两种种植模式的经济效益。结果表明:“普通平作”模式虽然单位面积有效株数多于“宽垄间距-垄作垄收”模式,但“宽垄间距-垄作垄收”模式种植的油菜产量性状更优,损失量和损失率更低,经济效益更高,更适合机械化收获。两种种植模式的主要农艺性状差别不大,但单位面积产量与经济效益存在明显差异,选择适宜的农机农艺融合模式进行机械化生产可获得高产高效。 展开更多
关键词 油菜 宽垄间距-垄作垄收 种植模式 机械化生产
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水稻—油菜轮作模式下稻套油栽培技术 被引量:2
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作者 韩仁长 朱先飞 +4 位作者 邹玉宁 黄冠 丁龙 余洪根 方先勇 《安徽农学通报》 2024年第6期1-4,共4页
油菜是重要油料作物之一,水稻套播油菜作为稻油轮作生产的一项重要农业技术,对提高粮油产量,实现农业可持续发展具有重要意义。本文分析了稻套油模式的优势以及栽培技术要点,为推广油稻轮作栽培技术提供参考。
关键词 稻油轮作 稻套油 免耕直播
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A Method for Rapid Identification of Ningza 11 Seeds Purity with SSR Markers
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作者 陈锋 张洁夫 +2 位作者 陈松 浦惠明 戚存扣 《Agricultural Science & Technology》 CAS 2014年第1期9-12,共4页
[Objective] This study aimed to establish a method for rapid identification of Ningza 11 seeds purity with SSR markers. [Method] Taking Ningza 11 hybrid seeds as experimental materials, a method for rapid identificati... [Objective] This study aimed to establish a method for rapid identification of Ningza 11 seeds purity with SSR markers. [Method] Taking Ningza 11 hybrid seeds as experimental materials, a method for rapid identification of hybrid rape-seeds was established with SSR molecular markers; meanwhile, the test seeds were planted in the field for comparison and verification. [Result] A method for rapid identification of Ningza 11 seeds purity with SSR molecular markers was estab-lished: DNA from seeds germinated in the night was extracted by alkaline lysis method; the PCR amplification was performed for 2 h, and electrophoresis for 1.5 h, and a silver staining for 10 minutes. It took less than one day to from obtaining sampling seeds to obtaining the purity identification result, so a skil ed professional can complete the detection of at least 6 ×96 = 576 seeds per weekday. By using this set of detection system, the measured purity of seeds from nine samples was extremely significantly positively correlated to the actual purity identified in the field test, with a correlation coefficient of up to 0.984 (P〈0.01). [Conclusion] This SSR-PCR molecular identification system can be applied for rapid and accurate identifi-cation of Ningza 11 hybrid seeds. 展开更多
关键词 Brassica napus L. rape Hybrid seeds Ningza.11 SSR markers Purityidentification
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30%噻虫嗪种衣剂对油菜生长及产量的影响
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作者 杨德政 晏伟 +2 位作者 罗雯 鲍坤 喻时周 《耕作与栽培》 2024年第3期26-28,33,共4页
为探究30%噻虫嗪种衣剂对油菜生长及产量的影响,本实验使用该种衣剂对MY400、BY150两个油菜品种进行包衣处理后在大田中种植,从出苗率、经济性状、产量等方向进行观察。结果表明,油菜种子的出苗率得到了提高,MY400经过包衣处理在4、5、... 为探究30%噻虫嗪种衣剂对油菜生长及产量的影响,本实验使用该种衣剂对MY400、BY150两个油菜品种进行包衣处理后在大田中种植,从出苗率、经济性状、产量等方向进行观察。结果表明,油菜种子的出苗率得到了提高,MY400经过包衣处理在4、5、9月份的出苗试验中,出苗率分别为48.33%、43.67%、52.33%,与对照相比具有显著性差异,其中4月份出苗率比对照高11.20个百分点。BY150经过包衣处理在各月份的出苗率要比对照高1.34~4.54个百分点。MY400经过包衣处理的有效分支数、主花序有效长度、主花序角果数、分支有效角果数均显著高于对照组,BY150经过包衣处理略高于对照组。处理与对照平均千粒重无显著差异,产量上,MY400和BY150经过种衣剂处理后分别比对照增产8.71%、6.24%。综上表明,种子经过30%噻虫嗪悬浮种衣剂处理,在生长过程中一些经济性状得到了提升,最终提高了油菜的总体产量。 展开更多
关键词 30%噻虫嗪 种衣剂 油菜生长
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制种油菜杂株铲齿式拔除试验台设计与试验
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作者 邢钦淞 丁素明 +3 位作者 薛新宇 崔龙飞 乐飞翔 韩焕超 《农机化研究》 北大核心 2024年第12期113-117,共5页
针对目前人工拔除油菜杂株耗时、费力的情况,设计了一种铲齿式末端执行器,并搭建了试验台,可实现机械化杂株拔除作业。基于PLC的试验台控制系统包含硬件与软件两部分,可通过触摸屏设置作业参数、显示与记录数据,实现自动化杂株拔除作业... 针对目前人工拔除油菜杂株耗时、费力的情况,设计了一种铲齿式末端执行器,并搭建了试验台,可实现机械化杂株拔除作业。基于PLC的试验台控制系统包含硬件与软件两部分,可通过触摸屏设置作业参数、显示与记录数据,实现自动化杂株拔除作业。试验表明:试验台配合铲齿式末端执行器能够顺利进行制种油菜杂株机械化、自动化拔除作业,运行可靠且满足制种油菜田农艺要求,控制系统具有操作简单、效率高、使用成本低等优点。 展开更多
关键词 制种油菜 试验台 末端执行器 控制系统
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光照强度和氮水平对油菜种子萌发特性的影响
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作者 李晓丹 童思迪 张丽辉 《长春师范大学学报》 2024年第2期107-111,共5页
以油菜为实验材料,采用3种光照水平(L1、L2和L3分别为100%、45%和25%光照)和3种氮素水平(N1、N2和N3分别为0.4%、0.8%和1.6%NH 4 NO_(3))的双因素实验,研究光、氮及其互作对油菜种子萌发特性的影响。结果表明:(1)在相同光照条件下,油菜... 以油菜为实验材料,采用3种光照水平(L1、L2和L3分别为100%、45%和25%光照)和3种氮素水平(N1、N2和N3分别为0.4%、0.8%和1.6%NH 4 NO_(3))的双因素实验,研究光、氮及其互作对油菜种子萌发特性的影响。结果表明:(1)在相同光照条件下,油菜种子的发芽率随着氮浓度的增加先上升后下降,0.8%氮浓度处理的种子发芽率最高。(2)种子发芽势随着氮浓度的增加呈现下降趋势,在相同光照强度处理下,1.6%氮浓度处理的种子发芽势显著低于其他两处理组(P<0.05)。(3)在L1、L2光照条件下,发芽指数随着氮浓度的升高呈现先上升后下降的趋势,而L3光照条件下,发芽指数随着氮浓度的升高呈现下降的趋势;在相同光照条件下,以1.6%氮浓度的种子发芽指数最低,显著低于其他处理组(P<0.05)。(4)在L1光照下,种子的活力指数随着氮浓度的增加而逐渐下降,以1.6%氮浓度处理组最低,显著低于其他两个处理组(P<0.05);在L2、L3光照处理下,种子活力指数随着氮浓度的增加呈现先升后降的趋势,种子活力指数以1.6%氮浓度处理组最低,显著低于其他两个处理组(P<0.05);以0.8%氮浓度处理组最高,但与0.4%氮浓度处理组无显著差异(P>0.05)。结论:适当的遮光有利于油菜种子的萌发,高浓度的氮素水平会降低油菜种子的发芽势、发芽指数及活力指数从而影响种子的发芽,光强和氮浓度交互作用显著影响油菜种子活力指数。 展开更多
关键词 光照 氮素 油菜 种子萌发
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