主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

Journal of Meteorology and Environment ›› 2019, Vol. 35 ›› Issue (4): 85-92.doi: 10.3969/j.issn.1673-503X.2019.04.012

• ARTICLES • Previous Articles    

Study on the accumulated temperature of cucumber growth in greenhouse

MA Feng-lian1,2, WEI Rui-jiang1,3, WANG Xin3, WU Xian-chun2, SUN Qing-chuan2   

  1. 1. Hebei Provincial Meteorological and Eco-environmental Key Laboratory, Shijiazhuang 050021, China;
    2. Chengde Meteorological Service, Chengde 067000, China;
    3. Hebei Provincial Institute of Meteorological Science, Shijiazhuang 050021, China
  • Received:2018-10-29 Revised:2018-12-21 Published:2019-09-03
  • Supported by:
    This work is supported by the Science and Technology Project of SGCC (No.5229CG15004T).

Abstract: In order to study the demand of accumulated temperature for cucumber growth to improve the prediction ability and planting efficiency in greenhouse,this paper analyzed the growth regulation of leaves and fruits of cucumber and their relationships with the effective accumulated temperature in different years and stubbles and determined the dead accumulated temperature of plant,using the long-term observation data in greenhouse and the mathematical statistics method.The results show that the leaf number of cucumbers develops in an S-shaped curve during the whole growth period,following the regulation of growing slow first and then fast.The effective accumulated temperature required to grow an additional leaf during different periods presents an asymmetric "U" shape,that is,the effective accumulated temperature required to grow an additional leaf in the early and middle-late stages of leaf growth is greater than that in the middle stage.The average effective accumulated temperature of 8-40℃ required to grow an additional leaf during the whole growth period is 33-37℃·d,and that of 15-35℃ needed from fruit set to harvest is 110-130℃·d.If the temperature conditions below 10℃ and above 5℃ occur repeatedly in the greenhouse,and the accumulated effective accumulated temperature of 5-10℃ reaches about 8℃·d during the repeated process,the cucumber plants will die.The above accumulated temperature index has a practical guiding significance in the production of cucumber in the greenhouse.

Key words: Greenhouse, Cucumber leaf, Fruit, Plants, Effective accumulated temperature

CLC Number: