西葫芦8个农艺性状的遗传效应分析

园艺学报 ›› 2007, Vol. 34 ›› Issue (5): 1183-1188.

西葫芦8个农艺性状的遗传效应分析

陈凤真¹;何启伟^2*;樊治成^1*;盛金¹

(¹山东农业大学园艺科学与工程学院，山东泰安271018；²山东省农业科学院蔬菜所，济南250100)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-10-25 发布日期:2007-10-25

Genetic Effect Analysis on Eight Agronomic Traits of Summer Squash

CHEN Feng-zhen¹; HE Qi-wei^2*; FAN Zhi-cheng^1*; SHENG Jin¹

（¹Horticulture Science and Engineering College, Shandong Agricultural University, Tai^,an, Shandong 271018, China; ²Research Institute of Vegetable, Shandong Academy of Agricultural Sciences, Ji^,nan 250100, China）

Received:1900-01-01 Revised:1900-01-01 Online:2007-10-25 Published:2007-10-25

摘要/Abstract

摘要： 选用性状差异显著的3个西葫芦自交系配制两个杂交组合，对其产量、熟性和株型（株高、叶数、节间距）等农艺性状进行6个不同世代遗传效应分析。结果表明：杂种一代在产量性状方面表现出不同程度的杂种优势；单株结果数、坐果率和第一雌花节位符合加性—显性遗传模型，且第一雌花节位以负向超显性效应为主；株高、叶数、节间距、单果质量和始花期符合加性—显性—上位性遗传模型；控制株高遗传的主要是加性效应，控制始花期的主要是加性和加性×显性上位性效应，控制叶数的主要是加性和显性效应；单果质量的广义遗传力较低。

关键词: 西葫芦, 农艺性状, 杂种优势, 遗传效应

Abstract: The genetic effects of yield traits, plant traits and maturity traits of summer squash were analyzed by using three inbred lines with significant difference. The results indicated that F1 had different heterosis on the main yield traits. Fruit number per plant, ratio of fruit setting and node of 1st female flower accorded with the pattern of additivedominance, while node of 1st female flower had negative dominance effect primarily. Plant height, leaf number, internode length, individual fruit mass and early flowering season were coincident with the pattern of additivedominanceepistasis. But the genetic effects of those traits had difference: Plant height had mostly additive effect; Early flowering season was mostly additive effect and additive dominance effect; Leaf number was mostly additive effect and dominance effect; The broad heritability of individual fruit mass was relatively low.

Key words: Summer squash, Agronomic trait, Heterosis, Genetic effect

陈凤真;何启伟;樊治成;盛金. 西葫芦8个农艺性状的遗传效应分析[J]. 园艺学报, 2007, 34(5): 1183-1188.

CHEN Feng-zhen;HE Qi-wei;FAN Zhi-cheng;SHENG Jin. Genetic Effect Analysis on Eight Agronomic Traits of Summer Squash[J]. ACTA HORTICULTURAE SINICA, 2007, 34(5): 1183-1188.

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