期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
蚕豆6×6双列杂交子代主要性状的遗传效应分析 被引量:8
1
作者 赵娜 缪亚梅 +5 位作者 薛冬 葛红 陈满峰 顾春燕 汪凯华 王学军 《核农学报》 CAS CSCD 北大核心 2020年第1期45-54,共10页
为提高蚕豆优势组合的选配效率,以6个蚕豆材料(P1~P6)为亲本,采用Griffing完全双列杂交配制30个组合,分析亲本和F1的9个主要农艺性状的杂种优势、配合力和遗传力。结果表明,蚕豆产量相关农艺性状的杂种优势明显,分枝数、单株荚数、单株... 为提高蚕豆优势组合的选配效率,以6个蚕豆材料(P1~P6)为亲本,采用Griffing完全双列杂交配制30个组合,分析亲本和F1的9个主要农艺性状的杂种优势、配合力和遗传力。结果表明,蚕豆产量相关农艺性状的杂种优势明显,分枝数、单株荚数、单株粒数、每荚粒数、百粒重和单株产量的超亲优势为正值,株高、始荚高和主茎节数的超亲优势为负值。配合力效应分析表明,P1和P2为选育大粒高产的优良亲本,P1×P2和P4×P6符合高产的育种目标,P2×P5和P2×P6符合大粒的育种目标;遗传力分析表明,百粒重、每荚粒数和单株粒数的广义遗传力和狭义遗传力均较高,可以相对稳定地遗传给后代,且这3个性状主要受加性效应控制,适宜进行早代选择,其他性状主要受非加性效应影响;主要性状与单株产量的相关分析表明,蚕豆育种应将单株荚数和单株粒数作为重点目标;通径分析表明,在育种过程中应重点关注分枝数、株高、百粒重、每荚粒数等农艺性状。本研究为蚕豆育种进程中的亲本选配和后代选择提供了一定的理论依据。 展开更多
关键词 蚕豆 双列杂交 遗传效应
下载PDF
Plant Resistance to Pest and Research Progress of Its Genetic Improvement 被引量:2
2
作者 chen manfeng Wang Xuejun +4 位作者 Ge Hong Miao Yamei Wang Kaihua Gu Chunyan Meng Lingyang 《Plant Diseases and Pests》 CAS 2015年第1期7-12,共6页
Pest damage is a significant factor that cuts agricultural production, and cultivation of pest-resistant varieties is the most economic and effective approach of controlling pest damage. Plant pest resistance includes... Pest damage is a significant factor that cuts agricultural production, and cultivation of pest-resistant varieties is the most economic and effective approach of controlling pest damage. Plant pest resistance includes antixenosis, antibiosis, and tolerance. Current popular methods for the genetic improvement of crop pest resistance are traditional breeding method, transgenic breeding, and molecular mark-assisted breeding. This paper introduced major mechanisms and genetic bases of plant pest resistance, "and reviewed research progress of domestic and international genetic improvement of plant pest resistance, analyzed the problems and its de- velopment prospects. 展开更多
关键词 Plant pest resistance Genetic improvement
下载PDF
Field Efficacy Trials of 10% Cyantraniliprole OD against Phytomyza horticola Gourean
3
作者 Gu Chunyan Ge Hong +4 位作者 Wang Xuejun chen manfeng Wang Kaihua Miao Yamei Zhao Na 《Plant Diseases and Pests》 CAS 2019年第1期31-32,共2页
In order to screen effective insecticides against Phytomyza horticola(Gourean), a comparative trial on the control efficacy of 10%cyantraniliprole OD and 75% cyromazine WP was conducted, and the optimal dose of 10% cy... In order to screen effective insecticides against Phytomyza horticola(Gourean), a comparative trial on the control efficacy of 10%cyantraniliprole OD and 75% cyromazine WP was conducted, and the optimal dose of 10% cyantraniliprole OD was determined. The results showed that 10% cyantraniliprole OD sprayed at the dosages of 375-450 mL/hm^2 had good control effect on P. horticola, which also increased the yield of fresh pea pods. At 15 d post spraying, the control effects of 10% cyantraniliprole OD against P. horticola were 81.98%-86.12% when sprayed at the dosages of 375-450 mL/hm^2. The yield increase rates of 10% cyantraniliprole OD were 8.39%-13.46%. 展开更多
关键词 10%Cyantraniliprole OD Phytomyza horticola Gourean CONTROL EFFECT YIELD TRIAL
下载PDF
Screening of Fungicides against Broad Bean Chocolate Spot(Botrytis fabae)
4
作者 Gu Chunyan Ge Hong +3 位作者 Wang Xuejun chen manfeng Wang Kaihua Miao Yamei 《Plant Diseases and Pests》 CAS 2013年第5期9-11,共3页
[ Objective] The paper was to select the effective fungicides to control broad bean chocolate spot. [ Method] Seven different fungicides were selected and sprayed in experimental fields in Jiangsu Yanjiang Area Agricu... [ Objective] The paper was to select the effective fungicides to control broad bean chocolate spot. [ Method] Seven different fungicides were selected and sprayed in experimental fields in Jiangsu Yanjiang Area Agricultural Science Research Institute of China in 2012, and yield increase rate and control effect were calculated. [ Result] The control effects of mancozeb 80% WP and pyraclostrobin + metiram 60% WDG against broad bean chocolate spot were 80.88% - 89.26%, and the yield increase rates were 10.85% -41.73%. Mancozeb 80% WP and pyraclostrobin + metiram 60% WG should have beautiful prospect against broad bean chocolate spot owing to excellent control effect and increase yield. [ Conclusion] The study provided reference for field control against broad bean choc- olate spot. 展开更多
关键词 FUNGICIDE SCREEN Broad bean chocolate spot Field experiment
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部