应用生态学报2012，Vol.23Issue(7)：1861-1868,8.
植物多糖类复合制剂对大豆光合性能和干物质的影响
Effects of plant polysaccharide compound agents on the photosynthetic characteristics and dry matter of soybean
摘要
Abstract
A field experiment was conducted to study the effects of foliar spraying three compound agents [plant polysaccharides ( P1) , plant polysaccharides and 5-aminolevulinic acid (P2) , and plant polysaccharides and 5-aminolevulinic acid and dimethylpiperidinium chloride ( P3) ] at the initial flowering stage of soybean on its leaf chlorophyll content, photosynthesis and transpiration, dry matter accumulation and allocation, and grain yield. Within 35 days after spraying the three compound agents, the leaf chlorophyll content had obvious increase, and its decreasing trend with plant growth had somewhat delay. Compared with the control, spraying P1 and P3 increased the leaf photosynthetic rate and water use efficiency by more than 13. 2% and 10. 3% , respectively. With the spraying of the three compound agents, the dry matter accumulation in aerial part increased, and the allocation of dry matter from leaf to pod was also enhanced, with the contribution of post-anthesis assimilates to grain yield increased by more than 17.1% . The 100-grain mass and the pods and seeds per plant increased significantly after spraying P1 and P3, but had no significant increase after spraying P2. The grain yield of soybean treated with the three compound agents increased by more than 5.9% , compared with the control. This study showed that the three plant polysaccharide compound agents could increase the leaf chlorophyll content, delay the leaf-senescence, improve the leaf photosynthetic capacity and water status, effectively control the dry matter accumulation and post-anthesis assimilates allocation, and increase the grain yield of soybean.关键词
植物多糖类复合制剂/大豆/气体交换参数/干物质积累/籽粒产量Key words
plant polysaccharide compound agent/ soybean/ gas exchange parameter/ dry matter accumulation/ grain yield分类
农业科技引用本文复制引用
白文波,宋吉青,国金义,刘星海,李际会..植物多糖类复合制剂对大豆光合性能和干物质的影响[J].应用生态学报,2012,23(7):1861-1868,8.基金项目
中央级公益性科研院所基本科研业务费项目(BSRF201002)和"十二五"国家高技术研究发展计划项目(2011AA100503)资助. （BSRF201002）
