ACTA AGRICULTURAE BOREALI-SINICA ›› 2016, Vol. 31 ›› Issue (S1): 289-295. doi: 10.7668/hbnxb.2016.S1.048

Special Issue: Potato crops

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The Influences and Mechanism of CaCl2 Treatment on the Growth of Continuous Cropping Potato

XU Xuefeng1, SHEN Baoyun2, HUI Zhenlong1, ZHANG Junlian3, LI Chaozhou1   

  1. 1. Gansu Key Laboratory of Crop Genetics & Germplasm Enhancement, College of Life Sciences and Technology, Gansu Agricultural University, Lanzhou 730070, China;
    2. Agricultural and Forestal Science Research Institution of Gansu Tiaoshan Group, Baiyin 730400, China;
    3. Gansu Key Laboratory of Crop Genetics & Germplasm Enhancement, College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2016-08-20 Published:2016-12-28

Abstract: Using the method of spraying calcium chloride solution on leaves,the influence of Ca-treatment on the growth and development of the continuous cropping potato were studied and the relevant mechanism was elucidated in this paper.The results showed that the treatment of spraying CaCl2 solution could alleviate the inhibition on the growth of potato plants effectively caused by continuous cropping,thus improved the potato tuber yield,hardness and content of starch,vitamin C and soluble protein.The results also showed that spraying CaCl2 solution reduced the decline in the content of chlorophyll and carotenoid,decreased the stomatal conductance and transpiration rate of the leaves,improved the net photosynthetic rate and water utilizing efficiency of the leaves,improved the content of proline and soluble sugar and the activities of SOD and CAT relatively,thus reduced the content of MDA and the reactive oxygen level in the continuous cropping potato seedlings leaves.So it could be concluded that the treatment of spraying CaCl2 solution on the continuous cropping potato could improve the general resistance of the continuous cropping potato,and thus alleviated the continuous cropping obstacle,improved the growth,the tuber yield and nutrient,and the effects caused by spraying CaCl2 solution should be closely related with the reduction of the leaves transpiration rate,the improvement of the leaves water status of the continuous cropping potato.

Key words: CaCl2, Continuous cropping, Potato, Growth and development

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Cite this article

XU Xuefeng, SHEN Baoyun, HUI Zhenlong, ZHANG Junlian, LI Chaozhou. The Influences and Mechanism of CaCl2 Treatment on the Growth of Continuous Cropping Potato[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2016, 31(S1): 289-295. doi: 10.7668/hbnxb.2016.S1.048.

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