大豆科学2017，Vol.36Issue(2)：237-243,7.DOI:10.11861/j.issn.1000-9841.2017.02.0237
外源油菜素内酯对高温胁迫下大豆光合特性及产量品质的影响
Effect of Heat Acclimation and EBR on Photosynthesis Characteristics in Leaves of Soybean Flowering Stage, Yield and Quality Maturation Stage
摘要
Abstract
Soybean is one of important oil crop in China.A pot experiment was carried to study the alleviated effects of foliar spraying EBR under heat stress at flowering stage.The pot experiment were conducted as a randomized block design in 2014 and 2015 at the Pailou Experimental Station,Nanjing Agriculture University.Nannong 996 was used in this study.EBR pretreatment was applied 7 days after anthesis for 4 days,and then exposed to heat stress for 4 days.Sampling and measurements were done at 11 (end of treated with EBR),15 (end of heat stress),19 (4 days after recover to normal temperature) and 27 (8 days after recover to normal temperature) days after anthesis,respectively.The results showed exogenous EBR pretreatment significantly increased net photosynthetic rate,dry matter accumulation and 100-grain weight,yield per plant in soybean under heat stress or normal condition.Moreover,EBR pretreatment improved grain quality by enhancing contents of protein,total soluble sugar and starch,decreasing crude lipid content dramaticly under heat stress in soybean.It is concluded that exogenous EBR pretreatment increased grain yield and improved grain quality by enhancing photosynthetic ability,dry matter accumulation and protein content.关键词
EBR/大豆/高温胁迫/产量Key words
EBR/Soybean/Heat Stress/Yield分类
农业科技引用本文复制引用
谢云灿,何孝磊,杜鹏,邢邯,江海东..外源油菜素内酯对高温胁迫下大豆光合特性及产量品质的影响[J].大豆科学,2017,36(2):237-243,7.基金项目
“十一五”国家科技支撑计划重点项目(2009BADA8B02) （2009BADA8B02）
江苏省重点科技支撑与自主创新示范工程项目(BE2008618). （BE2008618）
