摘要
采用苗期接种法对51份四倍体西瓜种质资源进行枯萎病抗性鉴定,并选择不同抗性的四倍体西瓜与二倍体西瓜按NCⅡ杂交设计配制三倍体西瓜组合,通过方差分析研究四倍体西瓜的枯萎病抗性遗传规律。结果表明:三倍体西瓜枯萎病抗性受其双亲的加性和非加性遗传共同控制,且以加性遗传为主,源于四倍体母本的加性遗传相对重要于二倍体父本的加性遗传;亲本的一般配合力效应与其枯萎病抗性呈显著正相关。
Fusarium wilt （ Fusarium oxysporum f. sp. Niveum） resistance in 51 accessions of tetraploid watermelon germplasm was identified in the seedlings through artificial inoculation, and inheritance of resistance was studied by analysis of variance of resistance in triploid watermelon combinations which were made with tetraploid and diploid watermelon using incomplete diallel mating method （ NC Ⅱ ）. The results indicated that the resistance of triploid watermelon combinations was controlled by additive and non-additive heredity components, and the former was more important relatively than the later. The additive heredity component of tetraploid female parent was more important than that of diploid male parent. The resistance of each parent was significantly positively related to its general combining ability.
出处
《江苏农业学报》
CSCD
北大核心
2006年第2期141-144,共4页
Jiangsu Journal of Agricultural Sciences
基金
江苏省高新技术项目(BG2004312)
关键词
四倍体西瓜
种质资源
三倍体西瓜
枯萎病抗性
抗性遗传分析
tetraploid watermelon
germplasm
triploid watermelon
resistance to fusarium wilt
genetic analysis of resistance
