黑龙江农业科学Issue(9)：35-37,3.DOI:10.11942/j.issn1002-2767.2015.09.0035
种植密度对大庆地区早熟玉米杂交种产量及穗部性状的影响
Effect of Planting Density on Yield and Ear Traits of Early Maturity Maize Hybrids in Daqing Areas
师臣 1谭福忠 1郑巍 1崔洪秋 1徐磊 1杨柳1
作者信息
- 1. 黑龙江省农业科学院 大庆分院，黑龙江 大庆 163316
- 折叠
摘要
Abstract
In order to excavate maize varieties yield potential ,to screen rational planting density of early maturity maize varieties in Daqing areas .The early maturity maize hybrids Kedan14 ,Keyu15 ,Qing1337 and Qing1448 were tested for different planting densities .Five planting densities for these varieties were tested ,they were 50 000 ,75 000 ,100 000 and 125 000 and 150 000 plants・hm‐2 .The results showed that yield might be increased obviously if planting density be increased suitably .Every variety had the most suitable density .The yields of tested maize hybrids were the highest in 100 000 and 125 000 plants・hm‐2 density ;The effects of planting den‐sity on ear traits of different density‐tolerant varieties were the same roughly .The 1 000‐kernel weight ,ear length and ear diameter of four varieties increased with planting density increasing .The bald length (in addition to Kedan14) reduced with planting density increasing .关键词
种植密度/大庆地区/早熟玉米/产量/穗部性状Key words
planting density/Daqing areas/early maturity maize/yield/ear traits分类
农业科技引用本文复制引用
师臣,谭福忠,郑巍,崔洪秋,徐磊,杨柳..种植密度对大庆地区早熟玉米杂交种产量及穗部性状的影响[J].黑龙江农业科学,2015,(9):35-37,3.
