丙烷脒对番茄植株生长、叶片光合作用和前期产量的影响

罗杰; 冯俊涛; 马志卿; 陈安良; 张兴

丙烷脒对番茄植株生长、叶片光合作用和前期产量的影响

1.
西北农林科技大学无公害农药研究服务中心/陕西省生物农药工程技术研究中心,陕西杨凌 712100

基金项目:

国家自然科学基金资助项目(30771442);国家"十五"科技攻关重大专项资助项目(2002BA516A04);农业成果转化资金资助项目(04EFN216100284).

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出版历程
- 收稿日期: 2007-09-05

Effect of Propamidine on Photosynthesis,Growth and the Prophase Yield of Tomato

1.
Center of Biorational Pesticide Research and Development,Northwest A & F University/ Shaanxi Research Centerof Biopesticide Engineering and Technology,Yangling 712100,Shaanxi Province,China

摘要

摘要: 较系统地测试了新型烷基脒类内吸性杀菌剂丙烷脒对番茄Lycopersicon esculentum Mill.植株生长、叶片光合作用和前期产量的影响。结果表明:丙烷脒对番茄植株生长有明显的调控作用,且与使用剂量有关。在100.00 g/hm2有效剂量下,与空白对照相比,丙烷脒处理可增加番茄植株粗壮度(株高相对生长速率降低35.00%,茎粗净增长量增加151.96%);使番茄叶片光合色素Chl a、Chl a+b、Car含量分别增加22.02%、15.17%和13.04%,光合能力增强 (Pn提高21.80%,Gs增大42.31%,Tr增大53.72%,Ci减小9.58%);使番茄叶片厚度增加21.88%,但单位面积叶片质量减少13.95%;番茄前期产量较对照增加25.70%。表明丙烷脒在推荐剂量下可明显促进番茄的生长,并可显著提高其前期产量。
- 丙烷脒 /
- 番茄 /
- 生长 /
- 光合作用 /
- 产量
Abstract: The effect of propamidine on plant growth,chlorophyl content,photosynthetic parameters and the prophase yield of tomato (Lycopersicon esculentum Mill.) was investigated. The result showed that propamidine could promote the seedling growth,and the effect was related to the dose of propamidine. At high dosage(100.00 g/hm2),propamidine lowered the relative growth rate of tomato height by 35.00% and enhanced the net increase rate of stem diameter by 151.96%, compared with the control.After treatment of propamidine,the content of chlorophyl a,chlorophyl a+b and carotenoid were increased by 22.02%,15.17% and 13.04%,respectively.And the net photosynthetic(Pn),stomatal conductance(Gs) and transpiration(Tr) were increased by 21.80%,42.31% and 53.72%,respectively.However,the intercellular CO2 concentration(Ci) was lowered by 9.58%.At the same time,the thickness of tomato leaves was increased by 21.88%,but the weight of unit area of tomato leaves was reduced by 13.95%.All factors mentioned above lead to output increasing of tomato by 25.70%. The result suggested that,under recommendatory dosage,propamidine could promote the seedling growth and increase the prophase yield of tomato.
- propamidine /
- tomato /
- growth /
- photosynthesis /
- yield

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