湖南农业大学学报（自然科学版）2018，Vol.44Issue(3)：229-233,5.DOI:10.13331/j.cnki.jhau.2018.03.001
洞庭湖区宜机收夏玉米品种的筛选
Screening of maize varieties with machine harvest in the Dongting Lake area
摘要
Abstract
Summer corn varieties Beinong5, Fudan2, Fengyu8, Dafeng28, Xinzhongyu801, Fudan4 and Sanbei89 were used as tested materials, dry matter accumulation, grain filling rate and grain dehydration rate were determined.Investigation on mechanized harvesting characteristics during harvest period and the varieties of machine harvested grains were screened. The results showed that the dominant period of dry matter accumulation of maize varieties Fudan2 and Bainong5 with high yield was medium and late. The accumulations of individual plants of early maturing variety Fengyu8 and Dafeng28 were 282 g and 285 g, respectively, which were far lower than those of medium late maturing varieties. The grain filling rate of maize was basically the same, reaching a peak at about 15 d after pollination, then gradually decreasing. The water content of grain was higher than 27％, the crushing rate of corn groats was less than 1％,but the loss rate of the grain harvest was less than 5％, and the qualified rate of the cut length of the straw was higher than 93％, which was in line with the standard. Combining the harvesting characteristics of all varieties, the yield of Fudan2and Bainong5 are 6432 kg/hm2 and 6342 kg/hm2 respectively. The grain loss rate is low and the stalk is tough and resistant to fall, which basically meets the requirement of the grain harvesting, and it is suitable for the cultivation of theharvested varieties in Dongting Lake area.关键词
玉米/机械化收获特性/农艺性状/洞庭湖区Key words
maize/mechanization harvest/grain filling/Dongting Lake area分类
农业科技引用本文复制引用
朱春生,易先辉,肖才升,马杰,罗红兵..洞庭湖区宜机收夏玉米品种的筛选[J].湖南农业大学学报（自然科学版）,2018,44(3):229-233,5.基金项目
国家重点研发计划项目(2016YFD0300308) （2016YFD0300308）
湖南省旱粮产业技术体系研究项目(湘农办科技[2016]108 号) （湘农办科技[2016]108 号）
