山东农业科学Issue(12)：18-22,5.
不同基因型夏玉米果穗脱水特性综合评价
Comprehensive Evaluation on Ear Dehydration Characteristics of Different Genotypes of Summer Maize
摘要
Abstract
At present, mechanized harvesting is the urgent problem in maize cultivation, and the maize ear dehydration characteristics have become the research focus.In this experiment, using 36 main summer maize cultivars in Huang-Huai-Hai region as objects, the moisture content and dry-down rate in each part of the ear were measured before and after the physiological maturity.And the maize varieties with stronger ear dehydration property were obtained by principal component and cluster analysis.The results showed that the moisture content in kernel, husk and cob was highly significantly correlated with each other, while the dry-down rate was uncorrelated.Among the 36 main maize cultivars, Denghai 605, Qingnong 105, Nonghua 101 and Golden Sunshine 7 had stronger ear dehydration property.The moisture content of husk, cob and kernel in varieties with stronger ear dehydration property was about 36%, 58%and 29%respectively.The maize ker-nel moisture content was not the key limiting factor of mechanized harvesting.关键词
夏玉米/含水量/脱水速率/玉米果穗Key words
Summer maize/Moisture content/Dry-down rate/Maize ear分类
农业科技引用本文复制引用
赵红香,张慧,孙旭东,王庆成,刘开昌,刘霞,韩壮,王献忠,李宗新..不同基因型夏玉米果穗脱水特性综合评价[J].山东农业科学,2014,(12):18-22,5.基金项目
国家科技支撑计划项目（2011BAD16B15，2012BAD04B05，2013BAD07B06）；公益性行业（农业）科研专项（201203079，201203100，201303013）；山东省科技发展计划项目（2013GNC11105）；山东省玉米产业技术体系创新团队项目 （）
