关键词: 6-BA, 点涂, 苹果, 萌芽, 新梢生长, 整形

Abstract:

Point-daub with 6-BA ointment was systematically applied to 1-or 2-year old apple trees to investigate its effects on bud breaking, shoot growth, and the shaping of apple trees, as well as application techniques. The results showed that point-daub with 6-BA ointment could effectively induce bud breaking, particularly for lateral bud in the year, the response was up to 81 ±5μg 6-BA/Bud. The suitable times for increasing the rates of bud breaking and shooting with the daub in order for the central branch and the base main branch were from the half of May to the half of July. Regardless of the cultivars used , the bud breaking and shooting rates were remarkably increased for horizontal or downside lateral buds on the base main branch. Only slight differences were observed with the daub on the buds for the shoot length, in which 'Red Fuji' or 'Mutsu' had the greater growth than 'Starkrimson' or 'Orin'. From Table 5, it can be seen that point-daub with 6-BA ointment continuously at the pla...

Key words: 6-BA ointment Point-daub Apple Bud breaking Shoot growth Shaping