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

CLC Number: 

• S562.033