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园艺学报 ›› 2011, Vol. 38 ›› Issue (8): 1515-1522.

• 研究报告 • 上一篇    下一篇

外源ALA处理对‘丰水’梨疏花与果实品质的影响

申 明1,段春慧1,张治平1,程 云2,汪良驹1,*,李百健2   

  1. 1南京农业大学园艺学院,南京210095;2南京傅家边果业有限公司,南京211221
  • 收稿日期:2011-05-23 修回日期:2011-07-07 出版日期:2011-08-25 发布日期:2011-08-25
  • 通讯作者: 汪良驹1,*

Effects of Exogenous ALA on Thinning and Fruit Quality in‘Hosui’Pear(Pyrus pyrifolia)

SHEN Ming1,DUAN Chun-hui1,ZHANG Zhi-ping1,CHENG Yun2,WANG Liang-ju1,*,and LI Bai-jian2   

  1. 1College of Horticulture,Nanjing Agricultural University,Nanjing 210095,China;2Fujiabian Fruit Ltd. of Nanjing,Nanjing 211221,China
  • Received:2011-05-23 Revised:2011-07-07 Online:2011-08-25 Published:2011-08-25
  • Contact: WANG Liang-ju1,*

摘要: 在‘丰水’梨(Pyrus pyrifolia)盛花后期,喷布600、900和1 200 mg · L-1 5–氨基乙酰丙酸(5-aminolevulinic acid,ALA)溶液,可以起到疏花作用,降低坐果率,提高采收期果实单果质量,改善果实品质。高浓度ALA处理,可明显降低梨花柱头可授性,提高花器官超氧阴离子的产生速率,SOD和CAT活性则显著下降。离体条件下,高浓度ALA可抑制梨花粉萌发。研究中还发现,花期喷施ALA至少可以在3个月内显著提高梨树叶片光合性能。

关键词: 梨, 5–氨基乙酰丙酸, 化学疏花, 果实, 品质, 光合作用

Abstract: Spraying with exogenous 5-aminolevulinic acid(ALA)in high concentrations(600,900 and 1 200 mg · L-1)at the late of full blooming could significantly thin flowers of pear(Pyrus pyrifolia Nakai.‘Hosui’),and then promote fruit weight and quality at harvest. High concentrations of ALA treatment significantly reduced the stigma fertilizability of pear but increased the production rate of superoxide anion of floral organ,meanwhile,the activities of SOD and CAT were decreased greatly. In vitro,high concentrations of ALA inhibited pollen germination. Measurements of chlorophyll fluorescence showed that although the ALA solution was applied at blooming,leaf photosynthesis was obviously promoted in at least three months.

Key words: pear, 5-aminolevulinic acid, chemical thinning, fruit, quality, photosynthesis

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