|Table of Contents|

Effects of Exogenous Ammonium Nitrate on Leaf Senescence in Fruiting Nodes and Yield and Qualities of Fruits of Muskmelon

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年08
Page:
1-6
Research Field:
Publishing date:

Info

Title:
Effects of Exogenous Ammonium Nitrate on Leaf Senescence in Fruiting Nodes and Yield and Qualities of Fruits of Muskmelon
Author(s):
LI Tian;  LIU Haihe;  ZHANG Yanping;  CHEN Qianyun;  ZUO Binbin;  HAN Jiajia
College of Horticulture, Agriculture University of Hebei, Baoding, Hebei 071001
Keywords:
muskmelon;  leaves of fruiting-node;  senescence;  chlorophyll fluorescence;  fruit qualities
PACS:
-
DOI:
10.11937/bfyy.20173348
Abstract:
Muskmelon cultivar ‘Yingchun( F1) ’ was used as test materials, 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 could be 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 growth of MDA content could be slowed down, the contents of soluble solids,soluble sugar and VC in fruits were 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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Last Update: 2018-03-15