Comprehensive Evaluation on Ear Dehydration Characteristics of Different Genotypes of Summer Maize
Zhao Hongxiang
Zhang Hui
Sun Xudong
Wang Qingcheng
Liu Kaichang
Liu Xia
Han Zhuang
Wang Xianzhong
Li Zongxin
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.
Keywords：Summer maizeMoisture contentDry-down rateMaize ear
Publication Date：2014-12-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 18-22 )