甘肃农业科技Issue(8)：32-34,35,4.DOI:10.3969/j.issn.1001-1463.2014.08.013
3个普通玉米品种（系）在临洮县的耐密性评价
Density Tolerance Evaluation of 3 Normal Corn Varieties(Lines)in Lintao County
摘要
Abstract
Under 67,500 /hm2 and 82500 /hm2 density levels,density tolerance evaluation parameters such as yield,plant height and row grains of Yuyu 22,Xianyu 335 and 163 (breeding by author),which cultivated in large-scale in Lintao county, were analyzed . The results showed that under the two density levels,equivalent yield of 163 was not significant difference,plant height and row grains were significant or highly significant difference;Equivalent yield of Yuyu 22 and Xianyu 335 were significant difference,plant height and row grains was not significant difference. It indicated that the yield,plant height and row grains could be used for density tolerance evaluation of corn materials and varieties . Under 82 500 /hm2 density levels,equivalent yields of Xianyu 335,Yuyu 22 were 21 548.8 and 20 372.0 kg/hm2,increased by 20.82% and 14.22%,respectively,compared with optional 163. Therefore,Xianyu 335 and Yuyu 22 are higher density-tolerant varieties,the planting density could be increased reasonably.关键词
玉米/品种(系)/耐密性/评价/临洮县Key words
Corn/Variety/Density tolerance/Evaluation/Lintao county分类
农业科技引用本文复制引用
孙会东,曲建东..3个普通玉米品种（系）在临洮县的耐密性评价[J].甘肃农业科技,2014,(8):32-34,35,4.基金项目
定西市科技计划资助项目“高产、优质玉米新品种选育”部分内容 （）
