UV-B辐射与水分胁迫对大豆产量影响的研究  

Effects of UV-B radiation and water stress on soybean yield

作　　者：任红玉[1] 徐海明[1] 李东洺[1] 黄蕊[1] 王立成[1] 

机构地区：[1]东北农业大学资源与环境学院,哈尔滨150030

出　　处：《东北农业大学学报》2009年第8期32-36,共5页Journal of Northeast Agricultural University

基　　金：黑龙江省博士后基金(LBH-Z05086);东北农业大学科学研究基金

摘　　要：试验以大豆东农47为材料,研究不同生育时期增加UV-B辐射与水分胁迫对大豆产量及构成因子的影响。结果表明,东农47苗期的弱紫外辐射使单株粒数、单株粒重和产量都增加,鼓粒前期的弱紫外辐射使百粒重增加最多;但开花到成熟期的强紫外辐射对大豆产量及其构成因子的负作用最大。UV-B辐射与水分胁迫各处理均使东农47的百粒重增加;随干旱程度加剧,UV-B辐射均使单株粒数、单株粒重和产量递减,而百粒重的变化各异;UV-B辐射与水分胁迫产生的拮抗作用与其强度有关。Soybean Dongnong47 was subjected to the experiments of the increasing UV-B radiation and water stress on soybean yield components during different growth periods. The results showed that 100-seed weight was greatly increased during early stage of pod filling in the treatment of weak UV-B radiation, seed number per plant as well as seed weight per plant and yield of soybean Dongnong47 were also increased, while the yield and yield components of soybean Dongnong47 during the blossom to mature period were negatively affected in the treatment of intensive UV-B radiation. 100-seed weight of Dongnong47 all increased in the double factor treatments of UV-B radiation and water stress; with the drought intensified, seed number per plant, seed weight per plant and yield of soybean Dongnong47 were decreased, but the changes of 100-seed weight were various, therefore the antagonistic action of UV-B radiation and water stress were related with their intensity.

关 键 词：UV-B辐射 水分胁迫 大豆 产量 产量构成因子 

分 类 号：S565.1[农业科学—作物学]