自控温室黄瓜茎蔓、叶片生长与有效积温关系的研究

Relationships among cucumber stem, leaf growing and total effective temperature in self-controlled greenhouse

  • 摘要: 研究了引进自控温室荷兰黄瓜叶片、茎蔓生长规律及与温室气候环境的关系。结果表明,与黄瓜茎蔓、叶片生长进程关系最密切的因子为12~25℃有效积温;叶片生长对温度反应呈非线性,13~19节位出叶所需12~25℃有效积温最少,平均每长1叶仅需10.6~10.9℃有效积温,比定植~5叶期少1/2以上。其他各节位每出1叶所需积温分别是定植~5叶为29.1℃,5~10叶为15.3℃,10~15叶为11.3℃,15~20叶为10.82℃,20~25叶为12.9℃,各生育期所需12~25℃有效积温较为稳定。在上海地区气候条件下建议采用变温管理方式以提高温度,通过气候环境的合理调控,实现黄瓜低成本生产和增产增收。

     

    Abstract: Relationships among Holland cucumber stem, leaf growing and greenhouse climatic environment were studied. Results showed that total effective temperature of 12~25℃ was the important factor which had closest relations with growing process of cucumber stem and leaves. Stem and leaves growing was non-linear to temperature, 13 to 19 episode locality leaves requires least accumulated temperature which was less than half of field planting to 5th-leaf stage. The growth of a piece of leaf only requires 10.6~10.9℃,others 29.1℃ for field planting to 5th-leaf stage,15.3℃ for 5th to 10th-leaf stage,11.3℃ for 10th to 15th-leaf stage,10.82℃ for 15th to 20th-leaf stage,12.9℃for 20th to 15th-leaf stage. Each growth and development periods required almost invariable total effective temperature. Under Shanghai climatic conditions,temperature changed method was suggested to increase yield and decrease costs in greenhouse cucumber production.

     

/

返回文章
返回