Effects of Nitrogen Level on Growth and Photosynthetic Characteristics of Muskmelon Planted in Greenhouse on the Tropic Region(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effects of Nitrogen Level on Growth and Photosynthetic Characteristics of Muskmelon Planted in Greenhouse on the Tropic Region

Author(s):: WANG Xiaojuan1; 2; 3; LI Xueqiao1; 2; 3; GAO Fanghua1; 2; 3; LIANG Zhenshen1; 2; 3; WANG Min1; 2; 3; CHEN Jianxiao4; 1.Vegetable Research Institute，Hainan Provincial Academy of Agricultural Sciences,Haikou，Hainan 571100；2.Hainan Provincial Engineering Research Center for Melon and Vegetable Breeding,Haikou，Hainan 571100；3.Hainan Provincial Key Laboratory for Vegetable and Biology,Haikou，Hainan 571100；4.Cereal Crop Institute,Hainan Academy of Agricultural Sciences,Haikou，Hainan 571100

Keywords:: nitrogen level; muskmelon; photosynthetic characteristics; growth

Abstract:: Muskmelon variety of ‘Cuitian’ was used as material,by sand culture experiment of modified Hoagland nutrient solution formula,six nitrogen levels（0,5,10,15,20,25 mmol?L^-1） were conducted to study the effects of different nitrogen levels on growth and photosynthetic characteristics in the greenhouse on the tropic region.The results showed that the number of notes,maximum width of blade,maximum length of blade,stem diameter,number of leaves,fruit length,fruit width,seed chamber width,fruit flesh thickness,fruit fresh weight,fruit dry weight,the content of chloroplast pigment and net photosynthetic rate were maximum when nitrogen level was 10 mmol?L^-1;central sugar content increased at first and decreased afterwards with the increase of nitrogen level,and central sugar content reached maximum when nitrogen level was 15 mmol?L^-1.

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Last Update: 2017-10-11