玉米品种抗倒伏关联特性的鉴定  

Identification of Traits Associated with Lodging Resistance in Maize

作　　者：白永新[1] 张润生[1] 李鹏[1] 魏振飞[1] 白宇皓 张建华[1] 郭盛[1] 

机构地区：[1]山西省农业科学院玉米研究所,山西忻州034000

出　　处：《山西农业科学》2016年第11期1592-1596,1607,共6页Journal of Shanxi Agricultural Sciences

基　　金：山西省科技攻关项目(20150311002-2);山西省农业科学院重点项目(YZD1516)

摘　　要：玉米倒伏已成为影响玉米高产的重要因素。以植株特征、茎秆强度、根系状况、茎秆主要成分、籽粒品质等为要素,研究分析玉米抗倒伏能力的大小。结果表明,茎秆抗拉弯强度与抗倒性有显著的正相关性,可作为抗倒性鉴定的指标之一;茎秆主要成分、籽粒品质与品种抗倒性没有相关性;气生根和不定根的生长数量、发育好坏影响玉米植株的抗倒性。Corn lodging had become one of the key factors limits the grain yield of maize. In this study, plant characteristics and other 4 aspects including stalk strength, root system characteristics, principal composition of stalk and grain quality were analyzed to illustrate the influences on lodging resistance in maize. The results showed that the tensile and bending strength of stem had closely positive correlation with lodging resistance, which could be used to evaluate the lodging resistance. The principal composition of stalk and grain quality was not closely related to the lodging resistance in maize varieties, development and number of brace root and adventitious root had effects to lodging resistance.

关 键 词：玉米 抗倒伏 相关性 分析 

分 类 号：S513[农业科学—作物学]