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Effects of Removing Leaves and Pods on Cowpea and Its Fluorescence Indexes(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年23
Page:
15-19
Research Field:
Publishing date:

Info

Title:
Effects of Removing Leaves and Pods on Cowpea and Its Fluorescence Indexes
Author(s):
WANG YanjieHU ZhihuiGUO RuiCHEN Chanyou
(College of Life Sciences,Jianghan University/Hubei Province Engineering Research Center for Legume Plants,Wuhan,Hubei 430056)
Keywords:
cowpeasource-sink relationshipspectrumfluorescencechlorophyll
PACS:
-
DOI:
10.11937/bfyy.201623004
Abstract:
Cowpea was used as material,removing leaves and pods at the reproductive growth period,investigating change of abscission rate,podding rate,yield,chlorophyll content,spectrum and fluorescence indexes after treatment.The results showed that 1/4 leaves removing,1/3 leaves removing,1/2 leaves removing at the early podding stage of cowpea increased the flower abscission rate.But 1/4 pods removing and 1/3 pods removing reduced the flower abscission rate compared with control;1/4 leaves removing,1/4 pods removing and 1/3 pods removing at flourishing podding stage of cowpea,the flower abscission rate was lower than control,however,the flower abscission rate of 1/3 leaves removing and 1/2 leaves removing was the higher than control.The flower abscission rate of 1/2 leaves removing at the flourishing podding stage was the highest.The podding rate and yield after removing leaves and pods were lower than control after removing leaves and pods at podding period.Besides,Fv/Fm and PRI were in positive correlation with chlorophyll content,and R2 reached above 080.The correlation among Fv/Fm,PRI,chlorophyll content,flower abscission rate and yield was not strong,indicating that there were other critical factors affecting the yield of cowpea.

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Last Update: 2017-01-18