摘要： 通过对574份试材的综合分析研究及抗病低酚棉花新品种普棉14号的成功培育，认为：①低酚与抗耐）枯萎病不存在遗传负相关，选育抗病低酚棉花的较佳技术路线应该是，有性杂交渗人抗源基因-早代干病圃进行一次自然淘汰和人工定向选择-无病圃和病圃对中选个体进行交替种植选择。②感病的低酚棉品种或无抗源的低酚棉组合后代，若置病圃连续种植和筛选，亦可获得抗病材料，但需时较长，选效亦差。

关键词: 特早热抗病, 低酚棉, 感病

Abstract: Comprehensive analyses were made on 574 materials and "Jinmian 14",a disease-resistant and low-gossypol content cotton variety, was bred successfully.There was no negative correlation between the low gossypol content and the resistance to the fusarium wilt.The breeding methods were as follows:firstly,incorporated the antigen gene into the cotton by sexual hybridization;secondly,naturally eliminated the susceptible plants in the disease plot and artificially selected low gossypol plant during early generation;thirdly,altenatively selected the favourable plants in disease-free plot and disease plot.Disease-resistant materials could be selected from susceptible varieties or the offspring without antigen continuously cultivated in the disease plot.but it was slow and the selecting effect was not good.

Key words: Very early matur, Low gossypol cotto, Disease-resistant

中图分类号: 

• S562.033