Studies on Physiological Mechanism of Red Leaf Phenomena of Early Maturing Peach in Summer

ACTA HORTICULTURAE SINICA ›› 2012, Vol. 39 ›› Issue (7): 1271-.

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Studies on Physiological Mechanism of Red Leaf Phenomena of Early Maturing Peach in Summer

XIE Zhi-Hua, JIANG Wei-Bing, HAN Jian, PENG Li-Li, ZHANG Bin-Bin, MA Rui-Juan

College of Horticulture，Nanjing Agricultural University，Nanjing 210095，China；Institute of Horticulture，Jiangsu Academy of Agricultural Sciences，Nanjing 210014，China

Online:2012-07-25 Published:2012-07-25

Abstract

Abstract: To uncover the physiological mechanism of red leaf phenomena of early maturing peach in summer，two early maturing peach cultivars（‘Zaomei’and‘Chunlei’） were used to research the changes of leaf pigments，soluble sugar content，anthocyanin biosynthesis related enzyme activity and net photosynthetic rate. The results showed that leaf soluble sugar accumulation increased after fruit harvesting. DFR rised obviously，PAL and CHI activity did not change much and showed no significant correlation with anthocyanin content at the early stage of leaf coloring. However，there was a significant positive correlation between PAL，CHI activity and anthocyanin content after leaves changed to be red.

Key words: peach, early maturing, red leaf, anthocyanin, physiological mechanism

CLC Number:

S 662.1

XIE Zhi-Hua, JIANG Wei-Bing, HAN Jian, PENG Li-Li, ZHANG Bin-Bin, MA Rui-Juan. Studies on Physiological Mechanism of Red Leaf Phenomena of Early Maturing Peach in Summer[J]. ACTA HORTICULTURAE SINICA, 2012, 39(7): 1271-.

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Studies on Physiological Mechanism of Red Leaf Phenomena of Early Maturing Peach in Summer

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