[1]郝茹雪,王健,武宝悦,等.不同春玉米品种产量及其构成因素通径分析[J].黑龙江农业科学,2020,(01):9-11.[doi:10.11942/j.issn1002-2767.2020.01.0009]
　HAO Ru-xue,WANG Jian,WU Bao-yue,et al.Path Analysis of Yield and Its Component Traits of Different Spring Maize Varieties[J].HEILONGJIANG AGRICULTURAL SCIENCES,2020,(01):9-11.[doi:10.11942/j.issn1002-2767.2020.01.0009]
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不同春玉米品种产量及其构成因素通径分析

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2020年01期 页码: 9-11 栏目: 出版日期: 2020-01-10
Title:
Path Analysis of Yield and Its Component Traits of Different Spring Maize Varieties
作者:
郝茹雪1; 王健1; 武宝悦2; 王文颇1
1.河北科技师范学院 农学与生物科技学院，河北 秦皇岛 066604；2.河北科技师范学院，河北 秦皇岛 066004
Author(s):
HAO Ru-xue1; WANG Jian1; WU Bao-yue2; WANG Wen-po1
1.College of Agronomy and Biotechnology,Hebei Normal University of Science and Technology,Qinhuangdao 066604,China;2.Hebei Normal University of Science and Technology,Qinhuangdao 066604,China
关键词:
玉米; 产量; 产量构成因素; 相关分析; 通径分析
Keywords:
maize;  yield;  yield component traits;  path analysis;  genetic correlation analysis
DOI:
10.11942/j.issn1002-2767.2020.01.0009
文献标志码:
A
摘要:
为促进河北省玉米高产栽培技术应用，采用2017年测定的共77组产量数据构建产量数据库，对产量及产量构成因素间的关系进行遗传相关和通径分析，研究冀东地区春玉米产量构成因素及产量间的关系。结果表明：单位面积穗数、穗粒数和千粒重与籽粒产量的遗传相关系数均为正值，除单位面积穗数外，穗粒数和千粒重与产量的相关系数均达到了极显著水平。通径分析结果表明，3个产量构成因素对籽粒产量的相对重要性依次为穗粒数>千粒重>单位面积穗数。杂交种选育过程中，重视穗粒数的选择，同时协调好3个主要产量构成因素之间的关系是实现玉米高产的重要手段。
Abstract:
In order to promote the application of high-yield cultivation technology of maize in Hebei Province,the yield database was constructed with 77 sets of yield data measured in 2017,and the relationship between yield and yield component traits was analyzed by genetic correlation and path analysis.The results showed that the genetic correlation coefficients of ears number per unit area,grains per ear and 1000-grain weight with grain yield were all positive.Except for ears number per unit area,the correlation coefficients of grains per ear and 1000-grain weight with grain yield reached significant differences.Path analysis showed that the relative importance of the three yield component traits to grain yield was grains per ear>1000-grain weight>ears number per unit area.In the process of hybrid breeding,it is important to pay attention to the selection of grains per ear and coordinate the relationship among the three main yield component traits to achieve high yield of maize.

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备注/Memo

收稿日期：2019-09-10基金项目：国家重点研发计划（2016YFD0300305-4）。

第一作者：郝茹雪（1994-），女，在读硕士，从事玉米栽培研究。E-mail：18733503180@163.com。
通信作者：王文颇（1963-），男，硕士，教授，硕士生导师，从事玉米栽培生理研究。E-mail：wangwenpo@126.com。

更新日期/Last Update: 2020-04-19