摘要
玉米机械化粒收减少了收获过程中的人工剥除苞叶和脱粒晾晒环节,大大节省了劳动力成本,对于提高种植玉米的经济效益有着重要意义,但目前适合机械粒收的品种还鲜有报道。本研究以高产、耐密、多抗、宜机械化粒收为选育目标,通过多年多生态区筛选和鉴定,选育出适合山西春播早熟和中晚熟区域种植的宜机械粒收新品种‘LT5918’,并于2018年通过山西省农作物品种审定委员会审定。该品种较对照品种平均产量增产5%以上,且茎秆粗壮、抗倒伏、脱水快、宜机械粒收,为提高玉米机械化收割程度降低劳动成本和保障粮食安全提供材料基础。
Mechanized grain harvesting of maize reduces the manual removal of bracts and threshing and drying in the harvesting process,which can save labor cost and has important significance for improving the economic benefits of maize planting,but few varieties suitable for mechanized grain harvesting have been reported.In this study,a new mechanical grain harvesting variety’LT5918’,suitable for spring sowing in early-maturing and middle-late-maturing areas in Shanxi Province,was selected and identified in multiecological areas for many years,with high yield,density tolerance,multi-resistance and suitable mechanized grain harvesting as the breeding objectives.It was approved by Shanxi Crop Variety Examination and Approval Committee in 2018.Compared with the control variety,the average yield of’LT5918’increases by more than 5%,and the stalk is strong,lodging-resistant,dewatering fast,and suitable for mechanical grain harvesting,the variety could be a material foundation for improving the mechanized harvesting degree of maize,reducing labor costs and ensuring food security.
作者
卜华虎
任志强
肖建红
张宁
杨慧珍
王晓清
Bu Huahu;Ren Zhiqiang;Xiao Jianhong;Zhang Ning;Yang Huizhen;Wang Xiaoqing(Research Center of Modern Agriculture,Shanxi Academy of Agricultural Sciences,Taiyuan 030031;Key Laboratory of Crop Gene Resources and Germplasm Enhancement on Loess Plateau,Ministry of Agriculture,Taiyuan 030031;Institute of Crop Sciences,Shanxi Academy of Agricultural Sciences,Taiyuan 030031;Biotechnology Research Center,Shanxi Academy of Agricultural Sciences,Taiyuan 030031)
出处
《中国农学通报》
2020年第2期6-9,共4页
Chinese Agricultural Science Bulletin
基金
山西省重点研发计划项目“玉米自交系创制关键技术与杂交种选育研究”(201603D221002-3)
山西省农科院十三五育种工程“抗逆、脱水快玉米种质创新及新品种选育”(16yzgc125).
关键词
玉米
机械化粒收
'LT5918’
耐密
Zea mays
mechanized grain collection
’LT5918’
density resistance
