|Table of Contents|

Effect of Planting Densities on Yield,Quality and Photosynthesis of Cucumbers Grown in Enclosed Trough Culture(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年09
Page:
60-68
Research Field:
Publishing date:

Info

Title:
Effect of Planting Densities on Yield,Quality and Photosynthesis of Cucumbers Grown in Enclosed Trough Culture
Author(s):
MENG Xianmin1LIU Mingchi23JI Yanhai23WU Zhanhui23LIANG Hao23ZHAO Min1
(1.College of Landscape and Ecological Engineering,Hebei University of Enginneerring,Handan,Hebei 056038;2.National Engineering Research Center for Vegetables,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097;3.Key Laboratory of North China Urban Agriculture,Ministry of Agriculture,Beijing 100097)
Keywords:
cucumbersplanting densitiesphotosyntheticqualityyield
PACS:
-
DOI:
10.11937/bfyy.20183604
Abstract:
Cucumber variety of ‘Zhongnong 26’ was used as experimental materials,with the system of enclosed circulation trough culture,the differences among different levels of planting densities treatment were investigated at 33 330 plants?hm-2(T1),49 995 plants?hm-2(T2) and 66 660 plants?hm-2(T3).In order to select the suitable planting density and provide theoretical guidance of cucumber in enclosed trough culture,so we measured the plant height,leaf number,maximum leaf area,net photosynthetic rate and chlorophyll content of cucumber leaves.And also made a comprehensive analysis after combined with the leaf microstructure,leaf senescence rate and leaf area index.The results showed that the plant height,the maximum leaf area and yield of cucumbers increased with the increase of plant densities,while the contents of soluble sugar,soluble solids,and yield of per plant decreased.Compared with T3,T2 had higher chlorophyll content and photosynthetic rate in leaves,more developed palisade tissue and stronger self-regulation ability.The water content,vitamin C content,soluble protein content and fruit shape index of fruit were higher,which the content of tiratable acid was lower,there was no significant difference between T1 and T2.T3 increased the total yield of cucumber,but the yield of per plant and quality of fruit were significantly lower than T1 and T2.To sum up,the leaf structure of the medium density(49 995 plants?hm-2) treatment was better and the leaf photosynthetic capacity of the plants populations was strong,and the yield and quality of cucumber were improved.

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Last Update: 2019-05-31