[1]李田,刘海河,张彦萍,等.外源硝酸铵对厚皮甜瓜坐果节位叶片衰老及果实产量和品质的影响[J].北方园艺,2018,42(07):15-21.[doi:10.11937/bfyy.20173348]
　LI Tian,LIU Haihe,ZHANG Yanping,et al.Effects of exogenous ammonium nitrate on leaf senescence in fruiting nodes and yield and qualities of fruits of muskmelon[J].Northern Horticulture,2018,42(07):15-21.[doi:10.11937/bfyy.20173348]

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外源硝酸铵对厚皮甜瓜坐果节位叶片衰老及果实产量和品质的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第42卷期数: 2018年07 页码: 15-21 栏目: 出版日期: 2018-04-10

Title:: Effects of exogenous ammonium nitrate on leaf senescence in fruiting nodes and yield and qualities of fruits of muskmelon

作者:: 李田; 刘海河; 张彦萍; 陈倩云; 左彬彬; 韩佳佳李田; 刘海河; （河北农业大学园艺学院，河北保定 071001）

Author(s):: LI Tian; LIU Haihe; ZHANG Yanping; CHEN Qianyun; ZUO Binbin; HAN Jiajia; (College of Horticulture,Agriculture University of Hebei,Baoding,Hebei 071001)

关键词:: 厚皮甜瓜; 坐果节位叶片; 衰老; 叶绿素荧光; 果实品质

Keywords:: muskmelon; leaves of fruiting-node; senescence; chlorophyll fluorescence; fruit qualities

DOI:: 10.11937/bfyy.20173348

文献标志码:: A

摘要:: 以厚皮甜瓜品种“迎春（F1）”为试材，研究了叶面喷施不同浓度硝酸铵（NH4NO3）对坐果节位叶片衰老及果实产量和品质的影响。结果表明：叶面喷施1.0、3.0、5.0 g?L-1的硝酸铵可不同程度地增加坐果节位叶片的叶绿素和可溶性蛋白质的含量，提高光合电子传递速率（ETR）、PSⅡ最大光化学效率（Fv/Fm）、PSⅡ实际光化学量子效率（Y（Ⅱ）），降低初始荧光参数（Fo），减缓MDA含量的增长，增加果实的可溶性固形物、可溶性糖和维生素C含量，但对单果质量影响不显著。表明叶面喷施3.0 g?L-1外源硝酸铵，对延缓厚皮甜瓜坐果节位叶片衰老，提高厚皮甜瓜果实品质的效果最佳。

Abstract:: Muskmelon cultivar ‘Yingchun(F1) ’ was used as test material,the study was conducted to investigate the effects of exogenous ammonium nitrate on the senescence of leaves in fruiting nodes and the yield and qualities of fruits of muskmelon.The results showed that by spraying different concentrations of exogenous ammonium nitrate solution (1.0，3.0，5.0 g?L-1) at the bearing-fruit flowering stage,the content of chlorophyll and soluble protein of the leaves in fruiting nodes increased at different degrees,besides,the apparent electron transport rate(ETR),maximal photochemical efficiency(Fv/Fm),quantum yield of PSII electron transport (YⅡ) were improved,Fo of the leaves of fruiting nodes was reduced.The increase of MDA content could be slowed down,the contents of soluble solids,soluble sugar and vitamin C in fruits increased,but there was no significant effect on single fruit weight．The best treatment with spraying 3.0 g?L-1 ammonium nitrate solution could be used to postpone the senescence of leaves in the fruiting nodes and improve the qualities of the fruits.

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备注/Memo

第一作者简介：李田（1991-），女，河北邯郸人，硕士研究生，研究方向为甜瓜栽培及生理。E-mail：1074284454@qq.com.责任作者：刘海河（1965-），男，河北邯郸人，博士，教授，现主要从事蔬菜栽培生理等研究工作。E-mail：yylhh@hebau.edu．基金项目：河北省自然科学基金资助项目（C2016204135）；河北省科技厅科技计划资助项目（162369 01D-4）；河北省高等学校科学技术研究资助项目（ZD2016133）；国家西甜瓜产业技术体系建设专项资金资助项目（CARS-26-25）。收稿日期：2018-01-31

更新日期/Last Update: 2018-04-17