| 西葫芦8个农艺性状的遗传效应分析 |
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| 引用本文： | 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. |
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| 作者姓名： | 陈凤真 何启伟 樊治成 盛金 |
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| 作者单位： | (山东农业大学园艺科学与工程学院，山东泰安271018；山东省农业科学院蔬菜所，济南250100) |
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| 基金项目： | 山东省济南市科技发展基金 |
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| 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。
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| 关 键 词： | 西葫芦 农艺性状 杂种优势 遗传效应 |
| 文章编号： | 0513-353X（2007）05-1183-06 |
| 修稿时间： | 2007-04-27 |
Genetic Effect Analysis on Eight Agronomic Traits of Summer Squash |
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| 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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| Authors: | CHEN Feng-zhen HE Qi-wei FAN Zhi-cheng SHENG Jin |
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| Institution: | （Horticulture Science and Engineering College, Shandong Agricultural University, Taian, Shandong 271018, China; Research Institute of Vegetable, Shandong Academy of Agricultural Sciences, Jinan 250100, China） |
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| Abstract: | The genetic effects of yield traits, plant traits and maturity traits of summer squash were ana- lyzed by using three inbred lines with significant difference. The results indicated that F_1 had different hetero- sis on the main yield traits. Fruit number per plant, ratio of fruit setting and node of 1 st female flower accor- ded with the pattern of additive-dominance, while node of 1 st female flower had negative dominance effect pri- marily. Plant height, leaf number, internode length, individual fruit mass and early flowering season were co- incident 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 domi- nance effect;Leaf number was mostly additive effect and dominance effect;The broad heritability of individual fruit mass was relatively low. |
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| Keywords: | Summer squash Agronomic trait Heterosis Genetic effect |
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