染色體工學的 方法에 의한 稻熱病 抵抗性벼 品種 育成

Breeding blast resistant rice by chromosome engineering

This study was conducted to introduce genes of blast resistrance from Lead rice to common rice varieties. Blast-resistant plants were screened from trisomics serise which added a Lead rice chromosome. Resistant disomics were obtained in the 3rd selfed generation of the above plants as well as in the process of producting the trisomics. These disomics were crossed with common varieties and selfed generation to generation. Eighteen lines having blast registance and other agronomically valuable characteristics were selected in F₈. Two lines selected from anther-cultured line were not satisfactory for blast resistance but useful in the agronomic characters.