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园艺学报 ›› 2003, Vol. 30 ›› Issue (5): 606-608.

• 研究报告 • 上一篇    下一篇

化学药剂对香椿休眠解除的影响及其机理

涂炳坤;丁小飞   

  1. (华中农业大学园艺林学学院, 武汉430070)
  • 收稿日期:2003-04-10 修回日期:2003-07-07 出版日期:2003-10-25 发布日期:2003-10-25

Analysis of Effects of Chemicals on Dormancy - breaking of Toona sinensis

Tu Bingkun;Ding Xiaofei   

  1. (College of Horticulture and Forestry Sciences,Huazhong Agricultural university , Wuhan 430070 , China)
  • Received:2003-04-10 Revised:2003-07-07 Online:2003-10-25 Published:2003-10-25

摘要: 采用五元二次正交旋转组合设计, 探索6-BA、GA3 、(NH2) 2CS、ZnSO4 、KNO3 对香椿休眠解除的影响, 5 种化学药剂解除休眠的作用依次为ZnSO4 > (NH2) 2CS > GA3 > 6-BA > KNO3 。打破香椿休眠的最佳药剂组合是: 6-BA 20 mg/L + GA3 180 mg/L + (NH2) 2CS 1 % + ZnSO4 0.5 % + KNO3 2 %。用上述药剂处理可以使香椿提早23 d 萌芽。

关键词: 香椿, 休眠, 萌芽

Abstract: Effects of gibberellic acid (GA3) , 6-benzy laminopurine (6-BA) , thiourea c. p. (NH2) 2CS,zinc sulphate ( ZnSO4 ) , saltpeter ( KNO3 ) on dormancy-breaking of Toona sinensis were investigated in the present research using a design of square , regressive and orthogonal rotation with five factors. Among the chemicals ZnSO4 had the best effect , followed by(NH2) 2CS , GA3 , 6-BA and KNO3 , respectively. The optimum chemical combination for breaking dormancy was 6-BA 20 mg/ L + GA3 180 mg/ L + (NH2) 2CS 1 % + ZnSO4 0. 5 % + KNO3
2% , which could result in sprouting 23 days earlier than the control .

Key words: Toona sinensis (A. Juss) Roem., Dormancy, Sprouting

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