Studies on the Male Sterility Induced By CHA Genesis in Wheat(T. aestivum L.)

The effects of male sterility induced by CHA Genesis and the differences among 20 wheat genotypes used as female parents in response to CHA were studied with a sub-sub-split plot experiment design. The results demonstrated that: 1)Genesis had a good effect on the male sterile inducing in wheat, The sterile rate ,hybridizing rate and foliar injury of the 20 wheat varieties were 99.2%～100%, 83%～100% and 2～7, respectively; 2)The significant differences of male sterility among treatments were found and the best dosage was 3 kg/hm2 in which the sterile rate was almost 100%; 3)No significant differences on male sterility were found between application stages (Feeke`s stage 8.0 and 9.0), and the suitable spraying period of Genesis is about 7 days. Based on the experiment results,the side effects of Genesis and the morphological characters of wheat for the best treating stage were also discussed