摘要
以杂交稻龙两优072和深优9576为材料,在头季稻收割后喷施不同激素,研究外源激素对再生稻产量及相关生理特性的影响。结果表明,各激素处理再生稻不同节位的产量均高于对照(CK),不同激素处理的增产效果表现为复配剂>IAA>6-BA>GA3。各激素处理不同节位和生育时期的LAI(龙两优072倒2节孕穗期LAI除外)及干物质积累量均较CK有不同程度的增加,各激素处理的叶绿素含量、光合速率和根系活力均高于CK。
Using two hybrid rice varieties Longliangyou 072 （ LLY 072 ） and Shenyou 9576 （ SY 9576 ） as the mate- rials, the effects of exogenous hormones on grain yield and related physiological characteristics of ratooning rice were studied by spraying different hormones after harvesting of the main crop. The results showed that the yields at different nodes of ratooning rice of all hormone treatments were higher than those of the control （CK） , and the yield increasing effect of different hormone treatments was in order of the compounded agent 〉 IAA 〉 6-BA 〉 GA3. The LAI and dry matter accumulation at different nodes in different growth stages of all hormone treatments （ except for the LAI at the 2na node from the top of LLY 072 at the booting stage） increased to some extent compared with CK, and the chlorophyll content, photosynthetic rate and root activity of the hormone treatments were all higher than those of CK.
作者
黄新杰
屠乃美
易镇邪
周文新
HUANG Xin-jie TU Nai-mei YI Zhen-xie ZHOU Wen-xin(Hunan Biological and Electromechanical Polytechnic, Changsha, Hunan 410128, China College of Agronomy, Hunan Agricultural University, Changsha, Hunan 410128, China)
出处
《杂交水稻》
CSCD
北大核心
2017年第4期71-75,80,共6页
Hybrid Rice
基金
国家自然科学基金(30971723)
湖南省教育厅研究生创新项目(CX2011B280)
关键词
再生稻
外源激素
产量
生理特性
ratooning rice
exogenous hormone
grain yield
physiological characteristic
