利用玉米RIL群体分析株型性状对两种密度的响应  

Analysis of Plant Architecture Underlying the Plant Density Response by RIL Population in Maize

作　　者：别海[1] 郑斐 王保林[1] 王金召[1] 王健[1] 乔旭[1] 库丽霞[3] 陈彦惠[3] BIE Hai;ZHENG Fei;WANG Bao-lin;WANG Jin-zhao;WANG Jian;QIAO Xu;KU Li-xia;CHEN Yan-hui(Zhengzhou Agriculture and Forestry Science Institute,Zhengzhou 450005;Zhengzhou Century Joy Park Management Office,Zhengzhou 450004;Henan Agricultural University,Zhengzhou 450002,China)

机构地区：[1]郑州市农林科学研究所,郑州450005 [2]郑州市世纪欢乐园管理处,郑州450004 [3]河南农业大学,郑州450002

出　　处：《玉米科学》2019年第6期13-18,共6页Journal of Maize Sciences

基　　金：国家自然科学基金项目(31571678);河南省玉米产业体系项目(S2015-02)

摘　　要：以豫82×沈137衍生的一套F10家系为材料,采用2个环境、2种密度、3个重复的田间试验设计,对玉米8个株型相关性状(叶夹角、叶长、叶宽、叶向值、叶基至最高点距离、穗上部各节间距离、株高、穗位高)进行表型鉴定。联合方差分析结果表明,叶夹角、穗上节间距、株高、穗位高4个性状基因型×密度间互作差异达显著水平,说明基因型与密度间互作是影响变异的主要因素,可将4个性状作为判断玉米株型耐密性指标。两种密度处理比较结果表明,随着密度的增加,4个性状平均值也随着增加。将两种密度条件下性状平均值比较,可将190个家系划分为密度敏感型、较敏感型、中间型和钝感型4种类型。A set of F10 families derived from Yu 82 × Shen 137 was used as the material to identify the phenotype of 8 plant types of maize by the field experiment design with 2 environments, 2 densities and 3 replicates. The results of the combined variance analysis showed that the differences of interaction between the 4 genotypes of the leaf angle, the interval of the spike, the height of the plant, the height of the spike and density were significant. The interaction between the genotype and the density was the main factor affecting their variation, and the above 4 traits could be used as an indicator of the tolerance to the plant type of maize. The comparison of two density treatments showed that the average of the 4 traits increased with the increase of density. The 190 families were divided into 4 types, density sensitive, sensitive, intermediate and insensitive, based on the comparison of the average values under two densities.

关 键 词：玉米 自交系 株型 耐密性 

分 类 号：S513.033[农业科学—作物学]