果树学报2011，Vol.28Issue(6)：1071-1076,6.
6-BA和GA_4＋7喷施处理及其他措施促进长富2号苹果幼苗分枝的效果
Effects of 6-BA and GA_4＋7 as well as other manual measures on branches formation of apple nursery stock
摘要
Abstract
The apple （Malus domestica Borth.） cultivar Fuji Nagafu No.2 was used to study the effects of 6-BA, equal mixture of 6-BA and GA4＋7, leaf removing, pinching and bud notching on improving branching of nursery stock with M26 as interstock and M. robusta Rehd. as rootstock. The results showed that spraying treatments of 6-BA and the equal mixture of 6-BA and GA_4＋7 were effective for improving seedlings branching situation. When applying same concentration the mixture treatment＇ s effect was better than 6-BA alone and the most appropriate concentration was 1 500 mg· L^-1. Leaf removing and bud notching could not make nursery stock produce any lateral branches;though pinching treatment could produce a small number of long shoots, it could not meet requirement because of its narrow branching angle and thin new-built leader. The treatment combining leaf removing with 6-BA or the mixture spraying gained better effect than 6-BA or the mixture spraying alone when applying lower spraying concentration （500 mg· L^-1） ; but this improvement could not obtained when applying higher spraying concentration （1 000 to 2 000 mg·L^-1）. According to the experiment results, the spraying treatment with equal mixture of 6-BA and GA_4＋7 at concentration of 1 500 mg·L^-1 is proposed to gain apple nursery with well branching situation.关键词
苹果幼苗/6-苄基嘌呤（6-BA）/赤霉素（GA_4＋7）/摘叶/摘心/分枝Key words
Apple nursery stock/6-benzyl aminopurine （6-BA）/Gibberellin （GA_4＋7）/Leaf removing/Pinching/Lateral branching分类
农业科技引用本文复制引用
张庆伟,宋春晖,邢利博,韩明玉,赵彩平,李高潮..6-BA和GA_4＋7喷施处理及其他措施促进长富2号苹果幼苗分枝的效果[J].果树学报,2011,28(6):1071-1076,6.基金项目
科技部国家成果转化项目(2011GB23600009) （2011GB23600009）
科技部星火计划(2010GA850012) （2010GA850012）
国家苹果产业技术体系(CARS-28) （CARS-28）
