|Table of Contents|

Changes in Photosynthetic Capacity of Apple Peel Explored by Chlorophyll Fluorescence and 820 nm Light Reflection During Fruit Development

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2026年11
Page:
91-97
Research Field:
Publishing date:

Info

Title:
Changes in Photosynthetic Capacity of Apple Peel Explored by Chlorophyll Fluorescence and 820 nm Light Reflection During Fruit Development
Author(s):
ZHANG Wenting; LI Pengmin
(State Key Laboratory for Crop Stress Resistance and High-Efficiency Production,Northwest A&F University,Yangling,Shaanxi 712100)
Keywords:
apple fruit peel; photosynthetic capacity; sunburn; prompt fluorescence; delayed fluorescence; 820 nm light reflection
PACS:
S661.1
DOI:
10.11937/bfyy.20253634
Abstract:
Taking ‘Honeycrisp’ apple fruits as the test materials,the synchronous measurements of prompt fluorescence,delayed fluorescence,and 820 nm light reflection were carried out to compare the changes in photochemical reactions and photosynthetic electron transfer capacity of the two photosynthetic systems in sun-exposed and shaded fruit peels at different fruit developmental stages,in order to provide reference for breeding and cultivation management of anti-sunburn new cultivars of unbagged apples.The results showed that for young apple fruits,the capacity of photosystem Ⅱ (PSⅡ) photochemical reactions in the sun-exposed peel and shaded peel was comparable,but the capacity of PSⅠ photochemical reactions was relatively higher in the sun-exposed peel.As fruit developed,the photosynthetic electron transfer capacity at the donor and acceptor sides of PSⅡ decreased faster in the sun-exposed peel than that in the shaded peel.The photochemical reaction capacity of PSⅠ also decreased faster.However,fruit coloring could reduce the photodamage to both PSⅡ and PSⅠ.

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Last Update: 2026-06-23