草业科学2019，Vol.36Issue(2)：458-467,10.DOI:10.11829/j.issn.1001-0629.2018-0203
群体密度和混播群体结构对箭筈豌豆种子产量和质量的影响
Effect of different densities and mixed community structures on seed yield and quality of Vicia sativa in Vicia sativa-Avena sativa mixtures
摘要
Abstract
This study investigated the effects of population density and community structure on seed production of Vicia sativa in a cool climate region. We analysed and compared the seed yield, seed quality, seed yield components, and other biological characteristics of different sowing rates, sowing ratios, and patterns (mixed cropping and intercropping with Avena sativa). Results show that seed yield increased with increasing sowing rates. The seed yields of mixed cropping and intercropping were less than that of monoculture, but seed quality (germination potential) was better. Seed yield and quality increased with increasing V. sativa sowing ratios. The mixed patterns affected seed yield and quality. Population density and community structure influenced shoots per plant (Sh/P), pods per plant (Po/P), and, in some cases, pod length, seeds per pod,and germination rate. In the mixed cropping and intercropping systems, A. sativa was a stronger competitor than V. sativa. To increase V. sativa seed yield and seed quality, the competition ratio of V. sativa in mixed communities needs to be improved by increasing the mixed ratios of V. sativa and using an intercropping pattern. In conclusion, V. sativa seed fields need higher sowing quantities (equal or more than 120 kg·ha-1), 75％ V. sativa seeding rate + intercropping pattern, and higher mixed ratios in cool climate pastoral areas.关键词
播量/同行混播/异行混播/混播比例/分枝数/结荚数/种间竞争Key words
sowing rate/mixed cropping/intercropping/mixed ratios/shoots per plant/pods per plant/interspecific competition分类
农业科技引用本文复制引用
关正翾,娜尔克孜,朱亚琼,郑伟,刘岳含,艾丽菲热..群体密度和混播群体结构对箭筈豌豆种子产量和质量的影响[J].草业科学,2019,36(2):458-467,10.基金项目
农业部"国家牧草现代产业技术体系"项目(CARS-34) （CARS-34）
国家自然科学基金(31660692) （31660692）
新疆农业大学-乌尔禾区合作项目(KLMYWEH-2017-06) （KLMYWEH-2017-06）
国家重点研发计划"政府间国际科技创新合作"重点专项(2017YFE0109200) （2017YFE0109200）
