Abstract:

In order to explore the effect of 60Co radiation, and to provide the basis for the cassava radiation mutation breeding, the effect of 60Co different doses of radiation on the cassava main agronomic traits were studied in this experiment, in which cassava variety ‘Xinxuan048’ was used as test materials and the cassava stems were treated with eight different levels of 60Co radiation of 2000 γ, 3000 γ, 4000 γ, 5000 γ, 6000 γ, 7000 γ, 8000 γ, 9000 γ of 60Co radiation. The results showed that, the effects of 60Co different doses of radiation, the cassava plant height, stem diameter, tuber number per plant, tuber starch content. 8000 γ radiation than the 5000 γ radiation average height increase 40.26 cm, stem diameter increase 0.53 cm tuber long increase 4.66 cm tuber crude increase 0.37 cm. 4000 γ radiation than the 9000 γ radiation tuber starch content increased by 4.53 percentage points. It was visible that cassava using different doses of 60Co radiation is an effective way to obtain mutants.