北方园艺Issue(11)：91-97,7.DOI:10.11937/bfyy.20253634
利用叶绿素荧光和820 nm光反射探究苹果发育过程中果皮光合能力变化
Changes in Photosynthetic Capacity of Apple Peel Explored by Chlorophyll Fluorescence and 820 nm Light Reflection During Fruit Development
摘要
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 PS Ⅰ 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 PS Ⅱ 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 PS Ⅰ.关键词
苹果果皮/光合能力/日灼/瞬时荧光/延迟荧光/820 nm光反射Key words
apple fruit peel/photosynthetic capacity/sunburn/prompt fluorescence/delayed fluorescence/820 nm light reflection分类
农业科技引用本文复制引用
张雯婷,李鹏民..利用叶绿素荧光和820 nm光反射探究苹果发育过程中果皮光合能力变化[J].北方园艺,2026,(11):91-97,7.基金项目
陕西省科技重大专项资助项目(2020zdzx03-01-02). （2020zdzx03-01-02）
