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ACTA HORTICULTURAE SINICA ›› 2008, Vol. 35 ›› Issue (5): 631-636.

• 果树 • Previous Articles     Next Articles

Variation of Different Forms Calcium Contents and Their CorrelationDuring Growth Stage of Prunus humilis Tissues

MA Jian-jun1,2,ZHANG Li-bin1,LIU Yu-yan1,XU Xue-feng2* ,and YU Feng-ming1   

  1. 1 Hebei Normal University of Science and Technology,Qinhuangdao,Hebei 066004,China;2 Fruit Stress Physiology and Molecular Biology Laboratory,China Agricultural Univerity, Beijing 100094, China)
  • Received:2007-12-03 Revised:2008-03-28 Online:2008-05-25 Published:2008-05-25
  • Contact: XU Xue-feng

Abstract: Variation of different forms calcium contents and their correlation in several tissues and organs (xylem, phloem, flower, fruit, new treetop and fruit petiole) were studied during budding period, florescence period and fruit development. The results showed that, there was close correlation between calcium absorption, accumulation and its existing forms. Calcium pectate was mainly existed in xylem, flower, fruit and fruit petiole. Calcium oxalate was mainly existed in phloem and treetop. During the annual development, the contents of all forms calcium in xylem had a trend of decline, but increased from fruit intumescent period. At the same time, the trend of calcium contents variation in phloem was same, only soluble calcium, calcium pectate, Calcium phosphate and calcium oxalate increased slightly. The variation of all forms calcium contents in flower and fruit decreased first, increased (or decreased) then, and decreased at last. During the fruit development, the soluble calcium,calcium pectate, calcium oxalate and residual calcium increased sharply, and the soluble calcium cotent in fruit petiole increased significantly. Conversion existed among different forms of calcium in different tissues and different development. High degree positive correlation existed between the annual variation of soluble calcium and calcium pectate contents in xylem, phloem, flowers and fruits and the calcium gross.

Key words: Prunus humilis, calcium, tissue and organ, different forms of calcium, content, correlation

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