winter budding
2.The edible cactus Milpa Alta was sprayed by different concentration of GA_3 under low temperature in winter. The results demonstrated that GA_3 with concentration from 40mg/L to 60mg/L could significantly improve germination rate and reduce budding time of the edible cactus Milpa Alta,in which the best effect was of 60mg/L,and the proportion of the bud number was 1∶3∶1 on the second,third and fourth class stem;

