HUBEI AGRICULTURAL SCIENCES ›› 2021, Vol. 60 ›› Issue (11): 81-85.doi: 10.14088/j.cnki.issn0439-8114.2021.11.017

• Horticulture & Local Products • Previous Articles     Next Articles

Effects of different anti-cracking agents on fruit cracking and contents of middle and trace elements in Junzao

LI Jiang-bin1,2, ZHAO Wei-liang1,2, YANG Xin-fang1,2, WANG Zhen-lei1,2   

  1. 1. National and Local Joint Engineering Laboratory for High-Efficiency and High-quality Cultivation and Deep Processing Technology of Southern Xinjiang Characteristic Fruit Trees/South Xinjiang Characteristic Fruit Production Engineering Laboratory of Xinjiang Production and Construction Corps/College of Plant Science,Tarim University,Alar 843300, Xinjiang,China;
    2. Key Laboratory of Biological Resources Conservation and Utilization in Tarim Basin, Xinjiang Production and Construction Corps,Alar 843300,Xinjiang,China
  • Received:2020-03-15 Online:2021-06-10 Published:2021-07-15

Abstract: Taking Junzao jujube(Ziziphus jujuba Mill.) as material, the effects of different concentrations of CaCl2 and GA3 on fruit cracking, medium and trace elements of Junzao jujube were studied by spraying different concentrations of CaCl2 and GA3 on the leaves of Junzao jujube at different stages. The results showed that during the growth period of jujube fruit, the weight of single fruit and the vertical and horizontal diameter of fruit were significantly increased by applying 15 g/L CaCl2 and 20 mg/L GA3. Spraying 10 g/L CaCl2 and 20 mg/L GA3 in the white ripening stage of jujube fruit could significantly reduce fruit cracking, reduce water absorption, and maintain the hardness and brittleness of fruit. The contents of P, K, Ca and Mg in jujube fruits increased significantly after long-term application of CaCl2, which was higher than that in medium and post-treatment stage. The contents of P, K and Na in jujube fruits were significantly higher than those in the pre-treatment period when gibberellin was sprayed at white ripening stage, and the content of Ca was slowly accumulated. Long-term application of calcium from young fruit stage to white ripening stage and spraying of GA3 during white ripening stage are important measures to reduce fruit cracking of Junzao.

Key words: Junzao jujube(Ziziphus jujuba Mill.), anti-cracking agent, cracking fruit, medium and trace elements

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