华北农学报 ›› 2016, Vol. 31 ›› Issue (S1): 289-295. doi: 10.7668/hbnxb.2016.S1.048

所属专题: 薯类作物

• 耕作栽培·生理生化 • 上一篇    下一篇

钙处理对连作马铃薯生长发育的影响及其机理

徐雪风1, 沈宝云2, 回振龙1, 张俊莲3, 李朝周1   

  1. 1. 甘肃农业大学 生命科学技术学院, 甘肃省作物遗传改良和种质创新重点实验室, 甘肃 兰州 730070;
    2. 甘肃省条山农场农林 科学研究所, 甘肃 白银 730400;
    3. 甘肃农业大学 园艺学院, 甘肃省作物遗传改良和种质创新重点实验室, 甘肃 兰州 730070
  • 收稿日期:2016-08-20 出版日期:2016-12-28
  • 通讯作者: 张俊莲(1961-),女,山西代县人,教授,博士,主要从事作物遗传育种与栽培生理研究。
  • 作者简介:徐雪风(1991-),女,陕西富平人,在读硕士,主要从事植物生态生理研究。
  • 基金资助:
    国家科技支撑计划课题项目(2012BAD06B03);国家十三五马铃薯产业体系(CARS-10-02A;CARS-10-07B)

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

摘要: 采用叶面喷施氯化钙溶液的方法,探讨了钙处理对连作马铃薯植株生长发育的影响及其机理,结果表明,钙处理可显著减轻连作对马铃薯生长发育的抑制,相对提高马铃薯块茎产量及块茎中淀粉、维生素C和可溶性蛋白含量及块茎硬度;减小了连作引起的叶片叶绿素和类胡萝卜素含量下降的幅度,相对降低叶片的气孔导度和蒸腾速率,提高了叶片的净光合速率和水分利用效率,并提高了叶片脯氨酸和可溶性糖的含量及SOD和CAT的活性,同时降低了MDA含量和活性氧水平。可见,喷施氯化钙溶液通过提高马铃薯幼苗对连作障碍的整体抗性,减轻连作所造成的生理障碍,促进了连作马铃薯植株的生长发育,并改善了马铃薯的块茎营养和产量,而上述作用可能与喷施氯化钙溶液降低叶片的蒸腾、改善马铃薯水分状况密切相关。

关键词: 氯化钙, 连作, 马铃薯, 生长发育

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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引用本文

徐雪风, 沈宝云, 回振龙, 张俊莲, 李朝周. 钙处理对连作马铃薯生长发育的影响及其机理[J]. 华北农学报, 2016, 31(S1): 289-295. doi: 10.7668/hbnxb.2016.S1.048.

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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