| 苗期短时间低硝态氮处理对水培黄瓜生长、产量和品质的影响 |
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| 引用本文： | 刘啸然,蒋卫杰,余宏军,宁秀娟,杨学勇.苗期短时间低硝态氮处理对水培黄瓜生长、产量和品质的影响[J].中国蔬菜,2011,1(18):47-51. |
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| 作者姓名： | 刘啸然 蒋卫杰 余宏军 宁秀娟 杨学勇 |
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| 作者单位： | 中国农业科学院蔬菜花卉研究所，北京 100081 |
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| 基金项目： | 国家科技支撑计划项目(2011BAD12B01); 国家大宗蔬菜产业技术体系项目(CARS-25-C-09); 天津农业推广项目(0804120); 中央级公益性科研院所专项; 农业部园艺作物遗传改良重点开放实验室项目 |
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| 摘 要： | 以水培黄瓜（9930）幼苗为试材，进行短时间不同浓度的低硝态氮处理，研究了处理期和恢复期黄瓜植株的生长发育状况、光合特性，以及果实产量和品质。结果表明：苗期短时间低硝态氮处理虽然会对水培黄瓜的光合特性和营养生长产生影响，但是经过一段时间的恢复，黄瓜的商品产量基本不受影响，而且果实品质有所提高。处理期T2（营养液NO3-浓度为5 mmol?L-1）的气孔导度、胞间CO2浓度、净光合速率分别比对照高15.25%、4.90%和3.28%，商品产量仅比对照低1.60%，而果实VC含量提高了14.92%，硝酸盐含量降低了20.52%。
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| 关 键 词： | 低硝态氮 黄瓜 生长 产量 品质 |
Effects of Short-term Low NO_3~- Treatment during Seedling Stage on Growth,Yield and Quality of Hydroponic Cucumber |
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| LIU Xiao-ran
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JIANG Wei-jie
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YU Hong-jun
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NING Xiu-juan
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YANG Xue-yong.Effects of Short-term Low NO_3~- Treatment during Seedling Stage on Growth,Yield and Quality of Hydroponic Cucumber[J].China Vegetables,2011,1(18):47-51. |
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| Authors: | LIU Xiao-ran JIANG Wei-jie YU Hong-jun NING Xiu-juan YANG Xue-yong |
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| Institution: | Institute of Vegetables and Flowers，Chinese Academy of Agricultural Sciences，Beijing 100081，China |
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| Abstract: | This experiment was carried out with greenhouse cucumber(Cucumis sativus L.)seedling grown in nutrient solutions with different concentration of NO3-,for a short period treatment.The growth and development indicators,photosynthetic characteristics,yield and quality of cucumber plant were investigated during treatment and recovery phases.The results indicated that short-term low NO3- treatment reduced vegetative growth and photosynthetic characteristics of cucumber seedlings.However,after a period of recover... |
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| Keywords: | Low NO_3~- Cucumis sativus L Growth Yield Quality |
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