玉米主要抗旱性状的配合力及遗传参数分析 Ⅱ.植株性状  

Analysis of Combining Ability and Hereditary Parameter of Major Drought Resistance Characters in Maize

作　　者：于海秋[1] 徐克章[2] 陈学求[2] 马义勇[3] 齐晶[3] 沈秀瑛[4] 

机构地区：[1]华南农业大学生命科学学院,广州510642 [2]吉林农业大学农学院,长春130118 [3]吉林农业大学科学试验站,长春130118 [4]沈阳农业大学农学院,沈阳110161

出　　处：《玉米科学》2003年第2期9-15,共7页Journal of Maize Sciences

摘　　要：按Griffing双列杂交(Ⅳ)方法,分析了8个玉米自交系的株高、穗位高、叶片数、雄穗分枝数、茎粗和单株叶面积等与抗旱性相关的植株性状在雨养地和水分胁迫下的GCA、SCA及遗传变量。结果表明:6个植株性状主要受加性基因效应控制,非加性基因效应作用较小。6221、6270、5003、8902表现较好,有一定的利用价值。6221×8902、6221×5003、8902×330等10个组合表现出了较合理的抗旱植株性状。The general combining ability(GCA),special combining ability (SCA)and hereditary parameter of plant height,ear position,leaf number per plant,branching number of tassel,stem diameter and leaf area per plant in8inbred lines of maize under normal condition and water stress were analyzed based on Griffing diallel crossing(Ⅳ).The result showed that those traits are majorly controlled by the effects of additive gene with less actions of non-ad-ditive gene effects.GCA of most traits in6221,6270,5003and8902was high,they are useful inbred line to improve morphological traits.Combines6221×8902、6221×5003、8902×330and so on take on reasonable morphological traits of drought resistance.

关 键 词：玉米 抗旱性状 配合力 遗传参数 植株性状 加性基因效应 

分 类 号：S513[农业科学—作物学]