锰胁迫对大豆生长和产量的影响  

Effect of Manganese Stress on Soybean Growth and Yield

作　　者：赵云娜[1] 曲春媛 金喜军[1] 栗文霞 张玉先[1] 

机构地区：[1]黑龙江八一农垦大学农学院,黑龙江大庆163319

出　　处：《大豆科学》2014年第6期876-879,889,共5页Soybean Science

基　　金：国家自然科学基金(204134008);黑龙江八一农垦大学博士启动基金(XYB2013-03);黑龙江八一农垦大学省作物学重点学科学术骨干科研启动金

摘　　要：采用沙培的方式,通过控制营养液中锰浓度来设置不同的锰素胁迫处理,研究锰胁迫对大豆生长和产量的影响。结果表明:锰胁迫对苗期大豆株高影响不显著,但明显抑制盛花期至收获期株高;锰胁迫明显抑制盛花期和结荚期大豆茎粗和鼓粒期根长,而在其他时期无显著影响;锰胁迫明显抑制结荚期和鼓粒期大豆叶面积,而在苗期和盛花期无显著影响;除苗期外,锰胁迫明显抑制其他时期根瘤数目、根瘤鲜重、根瘤干重;锰胁迫明显抑制除苗期以外其他时期叶、茎、根、全株干物质积累量,以及鼓粒期和收获期荚果干物质积累量和籽粒产量。综合分析表明,锰胁迫对生育前期大豆生长相关指标影响不显著,却在中后期起明显抑制作用,并最终导致籽粒产量明显下降。This experiment was conducted by sand culture with controlling different manganese concentration to study the effect of manganese stress on soybean growth and yield. The results showed that： Manganese stress had no significant influence on soybean plant height at seedling stage,but significantly inhibited that at R2,R4,R6 and R8. Manganese stress significantly inhibited stem diameter at R2 and R4 and root length at R6,and no influence at the other stage. Manganese stress had no significant influence on leaf area at R4 and R6,and no influence at V4 and R2. Besides seedling stage,manganese stress significantly inhibited nodule number,nodule fresh weight,and nodule dry weight. Manganese stress significantly inhibited dry matter accumulation of leaf,stem,root,and whole plant,and dry matter accumulation of pod at R6 and R8,and seed yield. In conclusion,manganese stress had no significant influence on soybean growth at earlier growing stage,but significantly inhibited at the middle-later period,which finally caused seed yield significantly decreased.

关 键 词：大豆 锰胁迫 生长 产量 

分 类 号：S565.1[农业科学—作物学]