干旱地区农业研究2017，Vol.35Issue(3)：120-125,6.DOI:10.7606/j.issn.1000-7601.2017.03.19
玉米成熟过程中激素含量及其与子粒灌浆和脱水相关性分析
Hormone contents of maize and their relationship with kernel filling and dehydration rate during maturation
摘要
Abstract
The experiments were conducted to determine content changes of indole-3-acetic acid (IAA),gibberellin-3(GA3),zeatin riboside (ZR) and abscisic acid (ABA) in kernels and ear leaves of two maize cultivars Xianyu 335 and Zhengdan 958,grown in semi-arid area of Heilongjiang province,and investigate the relationship between hormone and kernel filling and dehydration rate during maturation.The results indicated that the contents of IAA,GA3 and ZR in kernels were positively correlated with kernel filling rate,and IAA was significant (P ＜ 0.01) and correlation coefficient reached 0.9506 and O.9488 in Xianyu 335 and Zhengdan 958,respectively.But the ABA content in ear leaves was negatively correlated with kernel filling rote.ABA content in kernels was negatively correlated with kernel dehydration rate.In addition,the contents of IAA and ZR in kernels were positively correlated with kernel dehydration rate.The correlation between ZR content in kernels of Zhengdan 958 and dehydration rate was significant (P ＜ 0.05),and the correlation coefficient was 0.8813.The contents of IAA GA3,ZR and ABA in ear leaves were all negatively correlated with kernel dehydration rate.The correlation between ZR and ABA content in ear leaves and dehydration rate in Xianyu 335 were significant (P ＜ 0.05),and the correlation coefficients were-0.9296 and-0.9216,respectively.The correlation between IAA content in ear leaves and dehydration rate in Zhengdan 958 was significant (P ＜ O.05),and the correlation coefficient was-0.8976.In the semiarid region of spring maize,kemel filling rate of maize was largely correlated with its hormones including IAA,GA3,ZR and ABA,while its dehydration rate was mainly correlated with hormones both in kernels and the ear leaves.关键词
玉米/激素/灌浆速率/脱水速率/相关性/黑龙江省/半干旱区Key words
maize/hormone/filling rate/dehydration rate/correlation/Heilongjiang province/semi-arid region分类
农业科技引用本文复制引用
戴凌燕,刘玉涛,殷奎德,王宇先,迟莉,张树权..玉米成熟过程中激素含量及其与子粒灌浆和脱水相关性分析[J].干旱地区农业研究,2017,35(3):120-125,6.基金项目
黑龙江省博士后科学资金项目(LBH-Z13187) （LBH-Z13187）
国家科技支撑计划(2013BAD07B01-05) （2013BAD07B01-05）
