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园艺学报 ›› 2001, Vol. 28 ›› Issue (4): 339-341.

• 研究报告 • 上一篇    下一篇

GA3 和PP333调控苹果花芽孕育机理的研究

曹尚银1;汤一卒2;江爱华1   

  1. (1 中国农业科学院郑州果树研究所, 郑州450009 ; 2 南京农业大学农学系, 南京210095)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-08-25 发布日期:2001-08-25

Effects of PP333 and GA3 on the Mechanism of Flower Bud Induction in Apple Tree

Cao Shangyin1 , Tang Yizu2 , and Jiang Aihua1   

  1. (1 Zhengzhou Fruit Research Institute , Chinese Academy of Agricultural Sciences , Zhengzhou 450009; 2 Department of Agronomy , Nanjing Agricultral University , Nanjing 210095)
  • Received:1900-01-01 Revised:1900-01-01 Online:2001-08-25 Published:2001-08-25

摘要: 连续3 年用多效唑(PP333) 1 000 mg/L 和赤霉素(GA3) 1 000 mg/L 处理‘首红’
苹果, 结果表明, PP333处理降低了芽内吲哚乙酸( IAA) 和赤霉素( GAS) 含量, 增加了玉米
素核苷(ZR) 和脱落酸(ABA) 含量, 提高了ZR/ IAA、ZR/ GAS、ABA/ IAA 和ABA/ GAS 比值,从而促进了花芽形成。GA3 处理则增加了IAA、GAS 含量, 降低了ZR、ABA 含量, 降低了ZR/IAA、ZR/ GAS、ABA/ IAA 和ABA/ GAS 比值, 从而抑制了花芽形成。PP333和GA3 在花芽孕育临期内应用效果显著, 在其它时期无效。

关键词: 苹果, 花芽, 赤霉素, 多效唑, 内源激素

Abstract: ‘Redchief’and‘Red Fuji’apple tree ( Malus domestica Mill. ) were used as materials to test for the effect of treatments of paclobutrazol ( PP333 ) and GA3 on the contents of endogenous hormones in buds. The results
showed that the contents of and ZR , and ZR/ IAA , ZR/ GAS , ABA/ IAA and ABA/ GAS ratios in spur bud were remarkably increased , PP333 treatment by while GAS and IAA content in spur bud were decreased. The contents of GAS and IAA in spur bud were remarkably increased by GAS treatment , while ZR and ABA content , ZR/ IAA , ZR/ GAS , ABA/ IAA , and ABA/ GAS in spur bud were decreased. As to the effects of spraying PP333 or GA3 , it was noted that PP333 could increase the leaf bud node number , but no effect was noted for flower bud ; GA3 had no effect on the node number of leaf bud , but had a trend to decrease the node number for flower bud.