Operation of photosynthetic apparatus of citrus leaves in winter and spring

Optimum temperature for photosynthesis of citrus leaves planted in field was lower in winter than in spring, and it was higher than environmental temperature in winter. In the winter, the net photosynthetic rate (Pn), Rubisco activity, rate of RuBP regeneration, apparent quanturn yield (AQY), photoc...

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Main Authors: ZENG Guang-hui, GUO Yan-ping, WANG Fa-ge, WU Zhen-wang
Format: Article
Language:English
Published: Zhejiang University Press 2006-07-01
Series:浙江大学学报. 农业与生命科学版
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Online Access:https://www.academax.com/doi/10.3785/1008-9209.2006.04.0410
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author ZENG Guang-hui
GUO Yan-ping
WANG Fa-ge
WU Zhen-wang
author_facet ZENG Guang-hui
GUO Yan-ping
WANG Fa-ge
WU Zhen-wang
author_sort ZENG Guang-hui
collection DOAJ
description Optimum temperature for photosynthesis of citrus leaves planted in field was lower in winter than in spring, and it was higher than environmental temperature in winter. In the winter, the net photosynthetic rate (Pn), Rubisco activity, rate of RuBP regeneration, apparent quanturn yield (AQY), photochemical efficiency of PS Ⅱ (Fv/Fm), photochemical efficiency under light (Fv′/Fm′), photochemical quenching coefficient (qP), and electron transport rate (ETR) were lower, but the ratio of internal CO<sub>2</sub> concentration (Ci) to air CO<sub>2</sub> concentration (Ca), and non-photochemical quenching coefficient (qN) were higher, PSⅡ reaction centers were reversibly inactivated or damaged. These results indicated that the optimum temperature for photosynthesis of citrus leaves was adaptable to the changing natural environmental temperature. Low temperature in winter limited photosynthetic carbohydrate metabolism and photochemical reaction caused low photosynthesis.
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publishDate 2006-07-01
publisher Zhejiang University Press
record_format Article
series 浙江大学学报. 农业与生命科学版
spelling doaj-art-b143a81d3559478dae4d87f28af55eeb2025-08-20T03:16:04ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552006-07-013241041410.3785/1008-9209.2006.04.041010089209Operation of photosynthetic apparatus of citrus leaves in winter and springZENG Guang-huiGUO Yan-pingWANG Fa-geWU Zhen-wangOptimum temperature for photosynthesis of citrus leaves planted in field was lower in winter than in spring, and it was higher than environmental temperature in winter. In the winter, the net photosynthetic rate (Pn), Rubisco activity, rate of RuBP regeneration, apparent quanturn yield (AQY), photochemical efficiency of PS Ⅱ (Fv/Fm), photochemical efficiency under light (Fv′/Fm′), photochemical quenching coefficient (qP), and electron transport rate (ETR) were lower, but the ratio of internal CO<sub>2</sub> concentration (Ci) to air CO<sub>2</sub> concentration (Ca), and non-photochemical quenching coefficient (qN) were higher, PSⅡ reaction centers were reversibly inactivated or damaged. These results indicated that the optimum temperature for photosynthesis of citrus leaves was adaptable to the changing natural environmental temperature. Low temperature in winter limited photosynthetic carbohydrate metabolism and photochemical reaction caused low photosynthesis.https://www.academax.com/doi/10.3785/1008-9209.2006.04.0410citrusphotosynthesischlorophyll fluorescencephotosynthetic apparatustemperature
spellingShingle ZENG Guang-hui
GUO Yan-ping
WANG Fa-ge
WU Zhen-wang
Operation of photosynthetic apparatus of citrus leaves in winter and spring
浙江大学学报. 农业与生命科学版
citrus
photosynthesis
chlorophyll fluorescence
photosynthetic apparatus
temperature
title Operation of photosynthetic apparatus of citrus leaves in winter and spring
title_full Operation of photosynthetic apparatus of citrus leaves in winter and spring
title_fullStr Operation of photosynthetic apparatus of citrus leaves in winter and spring
title_full_unstemmed Operation of photosynthetic apparatus of citrus leaves in winter and spring
title_short Operation of photosynthetic apparatus of citrus leaves in winter and spring
title_sort operation of photosynthetic apparatus of citrus leaves in winter and spring
topic citrus
photosynthesis
chlorophyll fluorescence
photosynthetic apparatus
temperature
url https://www.academax.com/doi/10.3785/1008-9209.2006.04.0410
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AT guoyanping operationofphotosyntheticapparatusofcitrusleavesinwinterandspring
AT wangfage operationofphotosyntheticapparatusofcitrusleavesinwinterandspring
AT wuzhenwang operationofphotosyntheticapparatusofcitrusleavesinwinterandspring