不同杂交籼型水稻品种长江流域麦茬直播的适宜性分析与评价  

Aanlysis and Evaluation of Suitability of Different Hybrid Indica Rice Varieties by Direct Seeding after Wheat in Yangtze River Basin

作　　者：李兴华[1] 王欢[1] 蔡星星[1] 张盛[1] 周强[1] 吕锐玲[1] 周楠 LI Xing-hua;WANG Huan;CAI Xing-xing;ZHANG Sheng;ZHOU Qiang;LV Rui-ling;ZHOU Nan(Huanggang Academy of Agricultural Sciences,Huanggang 438000,China)

机构地区：[1]黄冈市农业科学院

出　　处：《江西农业学报》2019年第9期30-35,共6页Acta Agriculturae Jiangxi

基　　金：湖北省农业科技创新中心资助项目(2018-620-001-03)

摘　　要：为揭示不同杂交籼型水稻品种长江流域麦茬直播的适宜性及高产栽培产量主攻方向,以12个杂交籼型晚稻品种为材料,通过主成分分析和逐步回归方法分析了该地区麦茬直播水稻品种的主要要求性状和产量的主要限制因素,再结和生产实际对供试品种在该地区麦茬直播的适宜性进行评价。结果表明:长江流域麦茬直播籼型水稻品种应注重稻米外观品质因子(垩白粒率和直链淀粉含量)、产量因子(单位面积有效穗数、千粒重、结实率、出苗数和穗总粒数)和全生育期与株高结合因子(全生育期和株高),且产量主要由单位面积有效穗数、结实率和千粒重决定。结合品种主要要求性状和生产实际,供试品种中133优168和133优169为长江流域麦茬直播较适宜的品种,其表现为种子出苗较好、全生育期和株高适中、产量高、稻米外观品质好。The suitability of different hybrid indica rice varieties by direct seeding after wheat and main direction of its high-yield cultivation production in Yangtze River Basin were explored.Twelve late hybrid indica rice varieties were used as material.Main required character of hybrid indica rice varieties and main limiting factor of yield by direct seeding after wheat in Yangtze River Basin were analyzed by principal component analysis method and stepwise regression.The suitability of experimental variety was evaluated combined with actual production.The results showed that,the main required character of hybrid indica rice varieties by direct seeding after wheat in Yangtze River Basin were exterior quality factor(Chalky grain rate and amylose content),yield factor(effective panicles per unit area,1000-grain weight,seed setting rate,number of seedlings,grains per panicle),whole growth period and plant height binding factor(whole growth period and plant height).The yield was mainly determined by panicle number per unit area,seed setting rate and 1000-seed weight.Combined with the main required character of varieties and actual production,133 you 168 and 133 you 169 were more appropriate direct seeding varieties after wheat in Yangtze River Basin.They had high seedling emergence number,high yield and good exterior quality.Whole growth period and plant height were moderate.

关 键 词：籼型水稻 麦茬直播 产量 长江流域 

分 类 号：S511.21[农业科学—作物学]