不同播深对玉米出苗、胚芽鞘特性及幼苗活力的影响  

Effect of Different Sowing Depth on Seedlings Emergence,Coleoptile Properties and Seedling Vigor of Maize

作　　者：刘涛[1] 宁毅 冯乃杰[1] 郑殿峰[1] 陈文浩[3] 张盼盼 石英[1] 刘洋[1] 龚屾 刘春娟[1] 赵晶晶[1] 

机构地区：[1]黑龙江八一农垦大学农学院,大庆163319 [2]北大荒垦丰种业股份有限公司宾县玉米生产分公司 [3]中国农业大学农学与生物技术学院 [4]国家杂粮工程技术研究中心

出　　处：《黑龙江八一农垦大学学报》2016年第2期5-11,21,共8页journal of heilongjiang bayi agricultural university

基　　金：黑龙江省教育厅科学技术研究项目(12541599);黑龙江省普通高等学校寒地作物种质改良与栽培重点实验室开放课题(2012005)

摘　　要：试验以玉米德美亚1号、郑单958及龙单49为研究材料,采用盆栽试验,研究了5个不同播种深度对玉米出苗情况、幼苗活力、胚芽鞘特性及显微结构的影响。结果表明:不同供试玉米品种,播种深度为4 cm时,出苗最好,玉米幼苗活力最高。伴随播种深度的增加,胚芽鞘特性改良效果更加显著。生产实践中,在最佳播深情况下,胚芽鞘特性未能得到完全发挥,需要通过使用其他化学或物理方法来改善胚芽鞘建成,增强其保护幼苗的功能。Three maize varieties,Demeiya1,Zhengdan958 and Longdan49 were used as pot experiment materials to study the effect of different sowing depths on emergence force,seedling vigor,coleoptile properties and microstructure. The result showed that 4 cm was the optimal sowing depth at which the emergence force and seedling vigor was the best in the different maize varieties. Along with the increase of sowing depth,the characteristics of coleoptiles improved significantly. In the pratical production,coleoptile properties failed to completely play their role under the optimum sowing depth. Other chemical or physical methods were required to improve the formation of coleoptile,as well as to enhance the protective function of seedlings.

关 键 词：玉米 胚芽鞘 显微结构 幼苗活力 

分 类 号：S513[农业科学—作物学]