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生态学杂志 ›› 2012, Vol. 31 ›› Issue (06): 1378-1382.

• 研究报告 • 上一篇    下一篇

不同水温处理对夏季黄瓜穴盘育苗的影响

李胜利**,刘金,孙治强   

  1. (河南农业大学园艺学院, 郑州 450002)
  • 出版日期:2012-06-09 发布日期:2012-06-09

Effects of water temperature on cucumber plug breeding in summer.

LI Sheng-li**, LIU Jin, SUN Zhi-qiang   

  1. (College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China)
  • Online:2012-06-09 Published:2012-06-09

摘要: 为降低夏季黄瓜穴盘育苗中第一雌花节位,以“优胜F1”为材料,以浇灌常温水(22 ℃水)为对照,设7 ℃、11 ℃、15 ℃的水温和常温水+乙烯利4个处理浇灌黄瓜幼苗,研究不同浇灌水温对黄瓜幼苗第一雌花节位和生长发育的影响。结果表明:和常温水相比,冷水处理黄瓜幼苗能显著降低第一雌花节位、增加壮苗指数,在四叶一心时,7 ℃的水温处理株高显著降低24%、茎粗显著增加10%,第一雌花节位为4.8;11 ℃的水温处理单株干物质积累增加14%,第一雌花节位为5.6,且两者第一雌花节位皆显著低于常温水+乙烯利处理。从经济投入上考虑,11 ℃的水温处理更适合应用于夏季穴盘育苗。

关键词: 状态空间法, 资源环境综合承载力, 鄱阳湖生态经济区

Abstract: In order to decrease the node position of the first female flower in cucumber plug breeding in summer, an experiment with cucumber cultivar ‘Yousheng F1’ was conducted to study the effects of watering with different temperature water (7 ℃, 11 ℃, 15 ℃, 22 ℃+ ethylene) on the position of the first female flower and its growth and development, taking the water with temperature 22 ℃ as the control. As compared with the control, all the treatments except 22 ℃ water + ethylene resulted in the decrease of the position of the first female flower and the enhancement of seedling index. At the growth stage of fourleaf and one tip, the seedling height in treatment 7 ℃ water reduced by 24%, stem diameter increased by 10%, and the first female flower position was at 4.8, whereas the seedling dry mass in treatment 11 ℃ water increased by 14%, and the first female flower position was at 5.6. Though the two treatments were all significantly better than the control and treatment 22 ℃ water + ethylene, treatment 11 ℃ water could be more suitable for cucumber plug breeding, in considering the economic input.

Key words: state space method, comprehensive capacity of resources and environments, Poyang Lake Eco-economic Zone.