【作者】 王延琴； 魏守军； 周大云； 匡猛； 马磊； 方丹； 徐双娇； 杨伟华；

【Author】 Wang Yanqin;Wei Shoujun;Zhou Dayun;Kuang Meng;Ma Lei;Fang Dan;Xu Shuangjiao;Yang Weihua;Institute of Cotton Research,Chinese Academy of Agricultural Sciences/Key,China Laboratory of Cotton Genetic Improvement,Ministry of Agriculture;

【机构】 中国农业科学院棉花研究所/农业部棉花遗传改良重点开放实验室；

【摘要】 为了明确中国棉花主栽品种棉籽品质状况,揭示中国当前的棉花育种现状,为合理利用棉副产品及棉花特定目标育种提供参考,对当前中国三大主产棉区的142份棉花主栽品种棉籽的营养品质性状(蛋白质、油分含量)及3个物理性状(籽指、仁指和仁籽比)进行检测分析。结果表明:当前主栽棉花品种的营养品质非常接近,油分含量集中于27.1%~33.0%,棉籽的蛋白质含量集中区域为41.0%~45.0%,高油和高蛋白含量的棉花品种较少;蛋白质和油分总量变异较小,且两者呈高度负相关关系。研究结果真实地反映了我国棉籽品质性状,指出适时开展棉花多目标育种十分必要,但对油分与蛋白质含量进行同步改良的难度较大。更多还原

【Abstract】 The aim of this study was to clarify the cottonseed quality of Chinese cotton major cultivars,and to reveal the current status of cotton breeding in China.It was meaningful to guide the rational use of cotton by-products and specific target breeding.The characters of seed nutritional quality(protein,oil content),sowing quality(germination rate)and three physical characters(seed index,kernel index,kernel index/seed index)of 142 major cultivars from three main cotton regions(including eight main cotton production provinces)were determined and analyzed.The result showed that the seed nutritional quality of current major cultivars was very close.The oil content and protein content were separately concentrated on 27.1%~33.0%and 41.0%~45.0%.The cotton cultivars with the high oil content and high protein content were few.The variation of the protein content and oil content differed slightly and showed significantly negatively correlation.The result truly reflected the current quality situation of cotton seeds.Therefore,it’s very necessary to carry out the multi-target breeding of cotton.But it is still a tough task to simultaneously improve the seed oil content and protein content.更多还原