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1981～1985年,先后对鲜食桃早熟品种“钟山早露”、“雨花露”、“朝霞”和晚熟品种“白花”等喷布B9、乙烯利。试验结果表明,单喷乙烯利或B9,可提前果实成熟期约2～3天,并提高早期果实产量。混喷B9+乙烯利则有协同作用,果实成熟期可提前5～6天。B9的喷布浓度为1500～3000ppm,早熟品种以1500ppm为宜;乙烯利为30～60ppm,以30ppm较宜。喷布时期以5月上、中旬果实开始硬核前后为宜。一般早熟品种喷一次即可,晚熟品种宜喷两次。B9+乙烯利混用,对果实大小、维生素C和可溶性固形物含量无显著效应,但有降低可溶性糖、可滴定酸含量的倾向。
From 1981 to 1985, B9 and ethephon were sprayed on early perennial varieties of fresh peach such as “Zao Shan Zhaolu”, “Yu Hua Lu”, “Asaka” and late-maturing variety “Baihua”. The results showed that single spray ethephon or B9 can advance the fruit maturity of about 2 to 3 days and increase the early fruit yield. Mix spray B9 + ethephon has synergistic effect, fruit maturity can be 5 to 6 days in advance. B9 spray concentration of 1500 ~ 3000ppm, precocious varieties to 1500ppm is appropriate; ethephon 30 ~ 60ppm, preferably 30ppm. Spurting period in May on the middle and early fruiting hard core before and after appropriate. The general precocious species can be sprayed once, late maturing varieties should spray twice. B9 + ethephon mixed, the fruit size, vitamin C and soluble solids content had no significant effect, but reduce the soluble sugar, titratable acid content.