Chlorophyll Fluorescence as a Tool to Predict Formation of Chilling Injury of Peaches in Storage

ACTA HORTICULTURAE SINICA ›› 2008, Vol. 35 ›› Issue (7): 945-950.

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Chlorophyll Fluorescence as a Tool to Predict Formation of Chilling Injury of Peaches in Storage

YANG Hu-qing, ZHOU Cun-shan, HUO Yan-rong, PANG Lin-jiang, and WANG Yun-xiang*

(School of Argriculture and Food Science, Zhejiang Forestry College, Lin'an, Zhejiang 311300 ，China)

Received:2008-03-21 Revised:2008-05-15 Online:2008-07-25 Published:2008-07-25
Contact: WANG Yun-xiang

Abstract

Abstract: Chlorophyll fluorescence parameters (Fo, Fm and Fv/Fm) were measured by Portable Chlorophyll Fluorometer when peaches [Prunus persica (L.) Batsch cv.] were stored at 0℃. Extractabe juice and respiration rate of peaches were also measured during the period of storage. At last, we assessed the relationships among chlorophyll fluorescence parameters, respiration rate and storage time. The results showed that all chlorophyll fluorescence parameters declined with the progress of fruit ripening, where Fm and Fv/Fm declined more quickly when chilling injury happened. But intermittent warming at 20℃ for 36 h after 10 days'storage can prevent Fm and Fv/Fm decline. Fm and Fv/Fm showed the best correlation with changes of extractabe juice. This suggestd a relationship between the fluorescence and formation of chilling injury. Chlorophyll fluorescence as a tool may predict formation of chilling injury of peaches in storage.

Key words: peach, chlorophyll fluorescence, woolliness, maturation, chilling injury

CLC Number:

S 662.1

YANG Hu-qing;ZHOU Cun-shan;HUO Yan-rong;PANG Lin-jiang;and WANG Yun-xiang. Chlorophyll Fluorescence as a Tool to Predict Formation of Chilling Injury of Peaches in Storage[J]. ACTA HORTICULTURAE SINICA, 2008, 35(7): 945-950.

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Chlorophyll Fluorescence as a Tool to Predict Formation of Chilling Injury of Peaches in Storage

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