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ACTA HORTICULTURAE SINICA ›› 2013, Vol. 40 ›› Issue (4): 749-.

• Research Notes • Previous Articles     Next Articles

Research on the Characteristics of Fruit Cracking in the Hybrid Progenies Between Ziziphus jujuba‘Dongzao’and‘Linyi Lizao’

 TANG   Yan-1, JING  Yan-Ping-1, XU  Li-Si-2, SHEN  Lian-Ying-2, LI  Ying-Yue-1, PANG  Xiao-Ming   

  1. (1National Engineering Laboratory for Tree Breeding,Key Laboratory of Genetics and Breeding in Forest Trees and
    Ornamental Plants,Ministry of Education,Computational Biology Center,Biological Sciences and Biotechnology Institute
    of Beijing Forestry University,Beijing 100083,China; 2 Chinese Jujube Research Center,Agricultural University of Hebei,
    Baoding,Hebei 061000,China)
  • Online:2013-04-25 Published:2013-04-25

Abstract: Exploring the mechanisms underlying jujube fruit cracking is essential for the development
of new cultivar with high cracking resistance and also provides important reference to overcome the
problem. In this study,the hybrid seedlings between‘Dongzao’and‘Linyi Lizao’were chosen to
investigate of the rate of fruit cracking and to reveal the anatomy structure through the paraffin section
analysis. Furthermore,the relationship between fruit epidermal structure and fruit cracking susceptibility
were analyzed. The results showed that 48-LS-33,47-LS-22,II-13-15 were the genotypes with highest
cracking resistance and that there showed a significant negative correlation between the thickness of fruit
epidermal cells and cracking rate. The fruit of cracking resistant type had tighter arrangement of epidermis
cells than that of cracking sensitive type. The anticlinal changing in first layer epidermis cells caused by
cuticle deposition is obvious in the fruit of resistant cracking type,whereas the cuticle thickness was not
found to be related to the cracking rate.

Key words: jujube, fruit cracking, epidermis, cuticle

CLC Number: