Application of anther Culture technique in Rice breeding

Anther culture using the first generation of disease-resistant plants of backcross can transfer disease-resistant genes into japonica rice in a short time, which speeds up the process of disease-resistant breeding of japonica rice. Zhejiang Agricultural University has been matching since 1975. Anther culture was carried out in 1976 and Dan 209, a variety resistant to rice blast and bacterial blight, was bred in 1977. After only 3 years, the resistance genes of two diseases were transferred at the same time, and the breeding speed and efficiency greatly exceeded the conventional research methods of Japanese scholars. This study also discussed the way of producing original seed by anther culture in improved variety breeding. The experiment shows that the pure seed of anther culture has a certain purification and rejuvenation effect compared with the original seed of "three nursery method". At present, anther culture resistant varieties have been used as the source of resistance to late japonica rice.