Radiation Effect of 60Co -γRay on Bulbil of Dioscorea opposita
Liu Yanzhi
Xu Xiangwen
Wang Shuxia
Ma Jingyu
Abstract：Through irradiating bulbils of four Dioscorea opposita varieties with different dosages of 60 Co -γray,the emergence rate and weight of root -tuber were counted.The results showed that with the increase of radiation dosage,the radiation damage effect increased and the emergence rate declined.The emergence rate presented a linear relationship with radiation dosage with the equation as Y =-aX +b(a >0,b >0). The effects of different dosages of 60 Co -γray on M2 tuber of Dioscorea opposita were different among varieties. The radiation could increase the length and cross -section diameter of root -tuber of Jiaxiang Fuzz Yam,and improve the weight of per plant.The regular effects of radiation on the length of MYam tuber were not found, and 18 000 rad treatment obviously increased the weight per plant.The weight of Bracket Yam tuber presented a trend of firstly increase and then decrease with the increase of radiation dosage.60 Co -γray also presented irregular effects on Iron Stick Yam tuber.
Keywords：Bulbil of Dioscorea opposita60 Co -γrayRadiation effect
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 54-56,60 )