Soybean Genetics Newsletter


Seeds of S.J.2, a Thai soybean variety, were treated with gamma rays of a cobalt source in five different doses: 5, 10, 15, 20 and 30 krad, respectively. In M2 generation , yellow seedlings appeared in the treated materials, with the frequency ranging from 0.20 to 0.70%. Two different types of yellow seedlings were observed.