Effects of GA3 on Fruit Setting and Fruit Quality of Luntai Amerniaca Vulgaris

Objective To explore the effects of different concentrations of GA3 on Luntai Amerniaca Vulgaris fruit setting and quality and lay the foundation for the cultivation and regulation of Luntai Amerniaca Vulgaris fruit.MethodTaking Luntai Amerniaca Vulgaris as the research object, 40 mg/L, 90 mg/L and 140 mg/L concentrations of GA3 were sprayed at full flowering stage and 20 d after anthesis.The fruit setting rate was analyzed 20 d after flowering, fruit vertical diameter, transverse diameter, lateral diameter and single fruit weight were measured regularly, the fruit quality was determined after the fruit ripening.ResultGA3 treatment significantly increased the fruit setting rate, and the fruit vertical, horizontal and lateral size effectively, but the quality of the fruit has been reduced.90 mg/L GA3 significantly increased the fruit set, an increase of 117.32; compared to the CK.After the treatment of 40 mg/L and 90 mg/L GA3, the effect of fruit enlargement was positively correlated with the concentration of GA3.When the concentration reached 140 mg/L, the phenomenon of fruit enlargement was not obvious.ConclusionThe 90mg/L concentration of GA3 could effectively improve the yield of fruit, which could be used to control the growth and development of Luntai Amerniaca Vulgaris.