不同光温条件谷子资源主要农艺性状的综合评价  

Comprehensive Evaluation of Main Agronomic Traits of Millet Resources Under Different Light and Temperature Conditions

作　　者：贾小平[1] 袁玺垒 李剑峰 张博 张小梅[1] 郭秀璞[1] 陈春燕[1] JIA XiaoPing;YUAN XiLei;LI JianFeng;ZHANG Bo;ZHANG XiaoMei;GUO XiuPu;CHEN ChunYan(College of Agriculture,Henan University of Science and Technology,Luoyang 471023,Henan)

机构地区：[1]河南科技大学农学院,河南洛阳471023

出　　处：《中国农业科学》2018年第13期2429-2441,共13页Scientia Agricultura Sinica

基　　金：国家自然科学基金(31471569)

摘　　要：【目的】通过在海南省、吉林省2个不同光温环境调查100份春谷材料和60份夏谷材料抽穗期、株高、叶片数、穗长、穗粗、穗码数、码粒数、穗重、穗粒重、千粒重10个主要性状,揭示春谷、夏谷光温反应特性,筛选出适合用于谷子光温敏感性评价的性状指标。【方法】在连续两年两个地点对100份春谷材料和60份夏谷材料10个主要农艺性状调查的基础上,利用方差分析,建立光温敏感性综合评价指标D值进行回归分析、通径分析,光温相对敏感度比较分析3种方法评价春谷、夏谷10个性状对光温反应的敏感性。【结果】方差分析表明春谷、夏谷10个性状在不同光温条件均存在显著差异(P<0.01),说明光温条件对春谷和夏谷的影响是全方位的,无论春谷还是夏谷,抽穗期、株高、叶片数、穗长、穗粗、穗码数、码粒数、穗重、穗粒重9个性状在吉林光温条件下的调查值高于海南光温条件下的调查值,相反,千粒重在吉林光温条件下的调查值要低于在海南光温条件下的调查值;通过主成分分析建立光温敏感性综合评价指标D值,10个性状对D值进行回归分析、通径分析,春谷2个调查年份穗重、穗粒重、穗长、码粒数对D值直接效应较大,均表现较强的光温敏感性,夏谷2个调查年份结果差异较大,只有穗重、穗长2个性状对D值的效应较明显,均表现较强的光温敏感性;通过比较10个性状的光温相对敏感度,发现春谷2个调查年份穗重、穗粒重、抽穗期、穗长、穗码数光温相对敏感度较其他性状高,表现出更强的光温敏感性,夏谷2个年份穗重、穗长、抽穗期、穗码数光温相对敏感度较其他性状高,表现出更强的光温敏感性。综合D值回归分析、光温相对敏感度比较分析2个年份的结果及水稻研究成果,本研究认为春谷穗重、穗粒重、穗长、穗码数、抽穗期光温敏感性较强,其次为叶片数与�【Objective】To uncover the characteristics of photo-thermo reaction of spring millet and summer millet, screen out the suitable traits for foxtail millet photo-thermo sensitivity evaluation, ten main agronomic traits including heading date, plant height, number of leaves, panicle length, panicle diameter, branch number per panicle, grain number per branch, panicle weight, grain weight per panicle and 1000-grain weight of 100 spring millet materials, 60 summer millet materials were investigated in two locations ofHainan and Jilin with different photo-thermo conditions.【Method】Based on the survey data of ten traits from 100 spring millet materials, 60 summer millet materials in two locations for two consecutive years, three methods including variance analysis, regression analysis and path analysis between ten traits and comprehensive evaluation index D value of photo-thermo sensitivity, photo-thermo relative sensitivity comparison analysis of ten traits were performed to evaluate the photo-thermo sensitivity of ten traits of spring millets and summer millets【.Result】Variance analysis showed that ten traits of both spring millets and summer millets were significant difference between two different photo-thermo conditions（P 0.01）, indicating the omnibearing effect of photo-thermo condition on spring millets and summer millets. The investigation values of heading date, plant height, number of leaves, panicle length, panicle diameter, branch number per panicle, grain number per branch, panicle weight, grain weight per panicle of both spring millets and summer millets in Jilin location were higher than that in Hainan location. On the contrary, the investigation value of 1000-grain weight under Jilin photo-thermo condition was lower than that under Hainan photo-thermo condition. Comprehensive evaluation index D value of photo-thermo sensitivity was constructed by principal component analysis, based on which regression analysis and path analysis were performed between ten traits and D value. The results sho

关 键 词：谷子 光温敏感性 综合评价 穗长 抽穗期 

分 类 号：S515[农业科学—作物学]