明确了 2 9个新疆自育陆地棉品种 (系 )棉籽粗脂肪含量为 17.2 3%～2 5 .36 %,棉籽仁的粗蛋白含量为 2 6 .0 8%～ 31.5 9%。粗脂肪与粗蛋白之间为极显著负相关 ,但也有双高良种。建议今后在新品种选育上 ,尤其是在新品种决选时 ,应把棉籽的脂肪和蛋白质含量作为不可缺少的内容 It was clear that the crude fat content of 29 cotton cultivars (lines) in Xinjiang self-cultivated Upland cotton was 17.2 3% -2.56%, and the crude protein content in cottonseed kernels was 26.08% -31.59%. Crude fat and crude protein between a very significant negative correlation, but there are double high varieties. It is suggested that the content of fat and protein in cottonseed should be regarded as indispensable in the selection and breeding of new varieties in the future, especially at the time of the selection of new varieties