干旱地区农业研究Issue(4)：59-63,5.DOI:10.7606/j.issn.1000-7601.2015.04.09
辽宁省不同生态区玉米品种适应性研究
Adaptation of different maize hybrids in different ecological regions in Liaoning Province
摘要
Abstract
This research on ecological adaptation of maize hybrids in Changtu (Northern Liaoning ) ,Fuxin (Western Liaoning) and Haicheng (Southern Liaoning ) was designed by two-factors split plot using Zhendan 958 ,Tieyan 56 , Zhongdi 168 ,Liaodan 1211 ,Shenyu 29 ,Danyu 206 ,Danyu 405 and Liaodan 527 that have different adaptations .The results showed that maize yields were mainly subject to three meteorological factors including sunshine duration ,air tem-perature and precipitation ,especially at the tasseling stage .There were significant or highly significant correlations be-tween the yields and the meteorological factors before and after flowering .Different hybrids in one region and one hybrid in different regions had significantly different yields and variable suitable planting densities .Adequate precipitation dur-ing growth period ,enough sunshine and air temperature made Changtu a suitable region to plant most hybrids .Five of hybrids tested including Zhongdi 168 ,Liaodan 1211 ,Shenyu 29 ,Danyu 206 and Liaodan 527 were found to be suitable for planting in Changtu ,and they had different adaptive densities :52 500 plants·hm-2 for Zhongdi 168 ,82 500 plants ·hm-2 for Liaodan 1211 ,82 500 plants·hm-2 for Shenyu 29 ,45 000 plants·hm-2 for Danyu 206 and 45 000 plants· hm-2 for Liaodan 527 .Rich sunshine and air temperature ,though relatively poor precipitation compared with the other two regions ,led to reduced average yields in Fuxin .Relatively speaking in Funxin ,Zhongdi 168 and Liaodan 1211 were suitable to be planted under the densities of 52 500 plants·hm-2 and 67 500 plants·hm-2 ,respectively .Haicheng had the most highest accumulated temperature and enough water but less sunshine ,where Zhengdan 958 ,Tieyan56 and Danyu 405 achieved the highest yields .Zhengdan 958 and Tieyan 56 had the same adaptive planting densities of 52 500 plants·hm-2 ,and planting density of Danyu 405 was 37 500 plants·hm-2 .关键词
玉米/产量/气象因子/生态适应性/辽宁省Key words
maize/yield/meteorological factors/ecological adaptation/Liaoning Province分类
农业科技引用本文复制引用
王晶晶,李凤海,史振声,王宏伟,王志斌,吕香玲,朱敏..辽宁省不同生态区玉米品种适应性研究[J].干旱地区农业研究,2015,(4):59-63,5.基金项目
国家十二五科技支撑计划（2012AD0403）；辽宁省高等学校优秀人才支持计划 （）
