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园艺学报 ›› 2007, Vol. 34 ›› Issue (3): 771-774.

• 研究简报 • 上一篇    下一篇

长季节无土栽培番茄根部施用植物生长调节剂对根系活力的影响

蒋卫杰
*; 余宏军; 朱德蔚; 杜永臣;李 红; 史振霞
  

  1. (中国农业科学院蔬菜花卉研究所, 北京100081)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-06-25 发布日期:2007-06-25

Effect of Plant Growth Regulator on Root Activity of Tomato in Long-termSoilless Cultivation

JIANGWei-jie*
;YU Hong-jun;ZHU De-wei; DU Yong-chen; LI Hong; SHI Zhen-xia

  

  1. ( Institute of Vegetables and Flowers, Chinese Academ y of Agricultural Sciences, B eijing 100081, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-06-25 Published:2007-06-25

摘要: 以番茄品种‘宝发008’为试材, 通过无土栽培试验系统研究了2, 4-D、烯效唑、水杨酸、云
大-120、萘乙酸、爱多收6种植物生长调节剂( PGR) 对番茄生长的作用效应。结果表明, 经1 500倍云
大-120、5 mg·kg-1萘乙酸+ 3 000倍爱多收处理后, 番茄根系的氯化三苯基四氮唑( TTC) 还原强度提
高到0.623和0.558 mg·h-1 ·g-1 , 与对照(0.259 mg·h-1 ·g-1 ) 相比差异达到极显著水平, 对番茄叶
片净光合速率、茎秆生长量和果实产量也有影响。

关键词: 番茄, 植物生长调节剂, 根系活力, 无土栽培

Abstract: An experiment was conducted to study the effects of plant growth regulators ( PGR ) on
growth of tomato Baofa 008 and their mechanism in long-term soilless cultivation in greenhouse. The plant
growth regulators included 2, 4-D, uniconazole (UNI) , salicylic acid ( SA ) , Yunda-120, NAA and com
pound sodium nitrophenolate (CSN). The results indicated that tomato plant treated with Yunda-120, CSN +
NAA increased root activities by 0.623 mg·h-1 ·g-1 and 0.558 mg·h-1 ·g-1 , respectively, which were
significantly higher than that of the control, enhanced leaf net photosynthesis rate and p lant stem growth, con
sequently increased tomato yield by 13.42% and 8.78% , respectively, as compared with the control.

Key words: Tomato, Plant growth regulator, Root activity, Soilless cultivation