摘要
目的:以青贮玉米1等3个不同品种玉米为材料,研究不同播期对其生物学性状和产量的影响。方法:采用完全随机区组设计,分析比较4个播期(6月5日、6月15日、6月25日、7月5日)对青贮玉米1、甜玉米、糯玉米3种不同类型玉米部分性状的影响。结果:晚播会使3种类型玉米的生育期有不同程度的缩短。适当的早播对株高的增加有利,但不利于穗位的降低。在生长特性上,播期越迟,3个品种的穗长逐渐增大,穗粗变化幅度较小,3个品种的秃尖随着播期的推迟均有所降低。甜玉米(T269/T271)和糯玉米(万里挑一)2个品种在6月25日的生物学产量最高,青贮玉米1的生物学产量在6月5日最高。结论:青贮玉米1应适当早播,最适播期在6月5日~15日,T269/T271和万里挑一两个品种的适宜播期在6月25日左右。
Objective:To investigate the effect of sowing date on the biological characteristics and yield of three different varieties of corn as materials.Methods:A completely random block design was used to analyze and compare the effects of four sowing dates(June 5,June 15,June 25,and July 5)on some traits of three different types of corn.Results:Postponing of the sowing date will shorten the growth period of the three corns to varying degrees.Appropriate early sowing is beneficial to the increase of plant height,not conducive to the reduction of ear position.In terms of growth characteristics,the later the sowing date,the ear length of the three varieties gradually increased,and the change in ear thickness was smaller.The baldness of the three varieties decreasedwith the delay of the sowing date.The T267/T271 and Wanlitiaoyi had the highest biological yield on June 25,and silage corn one had the highest biological yield on June 5.Conclusion:Silage corn should be properly sown early.The optimal sowing period is from June 5 to June 15.The suitable sowing period of T269/T271 and Wanlitiaoyi is around June 25.
作者
徐运林
周柏宇
房浩
余海兵
程昕昕
XU Yunlin;ZHOU Boyu;FANG Hao;YU Haibing;CHENG Xinxin(College of Agriculture,Anhui Science and Technology University,Fengyang 233100,China)
出处
《安徽科技学院学报》
2020年第3期10-15,共6页
Journal of Anhui Science and Technology University
基金
国家自然科学基金委员会应急管理项目(31440066)
安徽省高校自然科学研究重大项目(KJ2019ZD57)。
关键词
播期
生育期
生物学性状
产量
Sowing date
Growth period
Biological traits
Yield
