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通过对玫瑰香葡萄、雪花梨／山梨、早魁桃／毛桃、樱桃砧木Ｃｏｌｔ应用萘乙酸浸泡苗木根系１２～２４ｈ的试验认为，处理后能显著增加根量，促进根的迅速生长，有利于地上部生长发育，部分树种促进了结实。适宜浓度因树种不同而异，葡萄为１００ｍｇ·ｋｇ－１；梨为３０ｍｇ·ｋｇ－１；桃、樱桃砧Ｃｏｌｔ为１０ｍｇ·ｋｇ－１．５０ｍｇ·ｋｇ－１以上浓度对桃、Ｃｏｌｔ根系有毒害作用。应用１００ｍｇ·ｋｇ－１萘乙酸处理玫魂香葡萄苗木根系，不能提早发新根，反有推迟趋势，但新根生长迅速。萘乙酸处理的促根作用主要表现于消除了根的先端优势，使新根量增加并向老根的中、后部分布。
The results showed that the application of Naphthalene Acetic Acid soaked nursery roots for 12-24 h had significant effects on root volume, root growth rate, Ministry of growth and development, some species to promote the strong. Appropriate concentration varies with different tree species, grapes 100mg · kg-1; pear 30mg · kg-1; peach, cherry anvil Colt 10mg · kg-1.50mg · kg-1 above the concentration of peach, Colt root poisoning effect. Application of 100mg · kg-1 naphthalene acetic acid treatment Rosewood grape seedlings root system, can not be given a new root, but delayed the trend, but the rapid growth of new roots. The role of naphthalene acetate in promoting root mainly in the elimination of the advantages of the root of the root, so that the new root increased and the root of the old root distribution.