4个非-Reid类玉米自交系主要性状配合力分析研究  

Combining ability analysis on main characters of four non-Reid maize inbred lines

作　　者：张永科[1] 郗洛延[1] 樊瑞彬[1] 王建平[1] 谭宜国[1] 任喜龙[1] 王立祥[1] 廖允成[1] 梁德俊 

机构地区：[1]西北农林科技大学农学院,陕西杨凌712100 [2]杨凌丰田生物技术公司,陕西杨凌712100

出　　处：《甘肃农业大学学报》2013年第1期49-55,62,共8页Journal of Gansu Agricultural University

基　　金：陕西省"13115"科技创新重大科技专项:玉米新品种选育及关键技术研究(2007ZDKG-03);陕西关中地区小麦;玉米超高产栽培技术集成与示范(2015ZDKG-09);陕西省农业科技攻关项目:玉米种质创新与新品种选育研究与示范(2010K01-10-2);西北农林科技大学唐仲英育种专项:资源高效型玉米新品种选育(2009-28);西北农林科技大学三原斗口农作物试验示范站项目;玉米蜂巢式高产栽培机械化播种集成示范项目

摘　　要：按不完全双列杂交设计(NCⅡ杂交设计)组配了44个杂交组合,对4个非-Reid(非瑞德)群自交系的一般配合力和特殊配合力进行分析.结果表明:增加产量配合力高的组合有‘LX9801×9858’、‘LX9801×8112’、‘LX9801×9058’、‘LX9801×9537’、‘昌7-2×沈137’、‘昌7-2×5276’、‘昌7-2×9537’、‘7117×5003’、‘7117×9858’、‘7117×郑58’、‘7117×9558’、‘K12×沈137’、‘K12×478’、‘K12×8112’、‘K12×K22’;增加百粒质量配合力高的组合有‘LX9801×K22’、‘LX9801×9537’、‘昌7-2×K22’、‘昌7-2×5276’、‘7117×郑58’、‘7117×9558’、‘K12×沈137’、‘K12×478’、‘K12×9058’、‘K12×8112’、‘K12×5003’;降低株高配合力高的组合有‘7117×5276’、‘昌7-2×9558’、‘7117×9537’、‘7117×K22’、‘7117×478’、‘昌7-2×郑58’;降低穗位高配合力高的组合有‘昌7-2×郑58’、‘7117×K22’、‘7117×9537’、‘昌7-2×5003’、‘7117×8112’、‘昌7-2×9058’;在4个非-Reid父本系中,产量配合力由高到低依次为‘LX9801’>‘昌7-2’>‘K12’=‘7117’;‘7117’一般配合力低于‘昌7-2’,可使F1代行粒数增加,并有降低株高和穗位的致矮遗传效应;对受加性基因控制的穗长、结实长、穗粗、穗行数、行粒数、株高、百粒质量等性状,宜进行早代选择;穗位、叶面积系数和小区产量等性状受非加性基因作用相对较大,宜进行晚代选择;应扩大供体遗传范围对‘昌7-2’受体进行遗传改良.Based on incomplete diallel croReid design（NCⅡcroReid design）,44 hybridized combinations were made with 4 non-Reid inbred lines to study the general combining ability（GCA） and special combining ability（SCA） of these inbred lines.The results showed that ＇LX9801×9858＇,＇LX9801×8112＇,＇LX9801×9058＇,＇LX9801×9537＇,＇Chang7-2×Shen137＇,＇Chang7-2×5276＇,＇Chang7-2×9537＇,＇7117×5003＇,＇7117×9858＇,＇＇7117×Zheng58＇,＇＇7117×9558＇,＇K12×Shen137＇,＇K12×478＇,＇K12×8112＇ and ＇K12×K22＇ were better on increasing yield;＇LX9801×K22＇,＇LX9801×9537＇,＇Chang7-2×K22＇,＇Chang7-2×5276＇,＇7117×Zheng58＇,＇7117×9558＇,＇K12×Shen137＇,＇K12×478＇,＇＇K12×9058＇,＇K12×8112＇ and ＇K12×5003＇ were better on increasing hundred-seed weight;＇7117×5276＇,＇Chang 7-2×9558＇,＇7117×9537＇,＇7117×K22＇,＇7117×478＇ and ＇Chang7-2×Zheng58＇ were better on decreasing plant height;＇Chang7-2×Zheng58＇,＇7117×K22＇,＇7117×9537＇,＇Chang7-2×5003＇,＇7117×8112＇ and ＇Chang7-2×9058＇ were better on decreasing ear height;in the 4 non-Reid male parent inbred lines,the yield combining ability from high to low were ＇LX9801＇＇Chang7-2＇＇K12＇=＇7117＇;the GCA of ＇7117＇ was lower than that of ＇Chang7-2＇,which had the ability to increase kernels per row of F1,to reduce plant height and ear height;ear length,solid length,ear width,rows per ear,kernels per row,plant height,kernel weight were controlled by additive genes,and should be early generation selection for the breeding of inbred lines;ear height,leaf area index and plot yield were mostly controlled by non-additive genes,and should be late generation selection for the breeding of inbred lines;the genetic range of donors should be expanded to improve ＇Chang7-2＇.

关 键 词：玉米 非-Reid群 自交系 配合力 

分 类 号：S513.024[农业科学—作物学]