Diallel Crossing Analyses of Resistance to Main Diseases in Pepper(Capsicum annuum L.)

被引：0

作者：

ZOU Xuexiao HOU Xilin CHEN Wenchao LIU Rongyun ZHANG Zhuqing MA Yanqing DAI Xiongze and YANG Yuhong National Key Laboratory of Crop Genetics and Germplasm Enhancement Nanjing Agricultural University Nanjing PRChina National Research and Extension Center of New Pepper Variety Technology Hunan Academy of Agricultural Sciences Changsha PRChina Institute of Vegetable and Flowers Chinese Academy of Agricultural Sciences Beijing PRChina ^{[1
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机构：

来源：

Agricultural Sciences in China | 2005年 / 08期

关键词：

Pepper (Capsicam annuum L.); Diallel crossing; Resistance to disease; Genetic parameter estimate;

D O I：

暂无

中图分类号：

S436.418 [辣椒病虫害];

学科分类号：

090401 ; 090402 ;

摘要：

Fifteen capsicum combinations were made with 6 parents by (1/2)n(n-1) diallel crossing. Genetic parameters in the resistance to TMV, CMV, phytophthora blight, bacterial spot of these combinations were studied by Hayman. The results indicated that the resistance to TMV, CMV and bacterial spot conformed genetically to the “additive-dominant” model but the resistance to phytophthora blight did not and significant epistatic dominance effect existed in it. F1 hybrid’s resistance to CMV was controlled by homozygous dominant gene (s), but resistance to bacterial spot by heterozygous one (s). There were little, or no sum of dominant effect and genomes controlling the dominant expression of F1 hybrids in its phytophthora blight resistance.

引用

页码：589 / 593

页数：5