XIE Yuncan,HE Xiaolei,DU peng,et al.Effect of Heat Acclimation and EBR on Photosynthesis Characteristics in Leaves of Soybean Flowering Stage, Yield and Quality Maturation Stage[J].Soybean Science,2017,36(02):237-244.[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
- Title:
- Effect of Heat Acclimation and EBR on Photosynthesis Characteristics in Leaves of Soybean Flowering Stage, Yield and Quality Maturation Stage
- Keywords:
- EBR; Soybean; Heat Stress; Yield
- 文献标志码:
- A
- 摘要:
- 通过盆栽试验探究外源喷施油菜素内酯(EBR)对开花期大豆高温胁迫下抗逆性的影响。试验于2014-2015年在南京农业大学牌楼试验基地进行,以大豆品种南农99-6为试验材料,在结束)、15 d(高温胁迫结束)、19 d(恢复常温后4 d)、27 d(恢复常温后8 d)取样。探究外源EBR对大豆常温及高温胁迫下光合、生物量及产量品质的影响。结果表明:外源EBR显著提高了常温和高温胁迫大豆叶片净光合速率和干物质积累量,且增加了百粒重和单株产量。除此之外,外源EBR显著提高了籽粒中的蛋白质含量、可溶性总糖及淀粉的含量,降低了粗油脂的含量,改善了大豆籽粒的品质。综上所述,外源喷施EBR预处理不但可以通过提高常温和高温条件下大豆叶片的光合能力,促进干物质积累,提高产量,而且提高了籽粒中蛋白质含量,改善了籽粒品质。花后7 d进行EBR预处理,花后11 d进行高温胁迫,持续4 d。分别在花后11 d(EBR处理
- 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 100grain 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
参考文献/References:
[1]宋利茹, 王爽, 牛娟, 等春大豆种子田间劣变性和劣变抗性的差异蛋白质组学研究[J]. 中国农业科学, 2015, 48(1):23-32(Song L R, Wang S, Niu J, et al Differentially proteomics analysis of pre harvest seed deterioration and deterioration resistance in spring soybean[J]. Scientia Agricultura Sinica, 2015, 48(1): 23-32
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备注/Memo
基金项目: “十一五”国家科技支撑计划重点项目(2009BADA8B02);江苏省重点科技支撑与自主创新示范工程项目(BE2008618)。