Biochemical basis of grey mildew resistance in cotton

摘要

Fifteen Gossypium arboreum hybrids, twenty Gossypium wild species, five G. arboreum races and eight Bt cotton hybrids were screened naturally for grey mildew resistance. Among the fifteen G. arboreum hybrids, three were disease free, two were resistant and three were susceptible to grey mildew disease. However, from the 20 Gossypium species, except G. bengalense all were free from grey mildew disease.