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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (14): 134-137.

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

夜间温度升高对双季水稻秧苗素质的影响

魏金连,潘晓华   

  • 收稿日期:2009-03-09 修回日期:2009-03-31 出版日期:2009-07-20 发布日期:2009-07-20

Effects of Nighttime Temperature Increases on the Seedling Quality of Double Season Rice

  • Received:2009-03-09 Revised:2009-03-31 Online:2009-07-20 Published:2009-07-20

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摘要： :利用两间玻璃室内夜间不同的温度条件，研究了夜温升高对双季早晚稻秧苗素质的影响。与夜间常温对照相比，夜温升高明显加快早晚稻秧苗的出叶速率，提高干物质的积累量。但夜温升高降低晚稻秧苗的发根力，不利于秧苗的根系伸长。

关键词: 药用植物, 药用植物, 防风, 组织培养, 愈伤组织

Abstract: By using the different nighttime temperature in two glass-houses, the experiments were conducted to study the effects of nighttime temperature increases on the seedling quality of double season rice. The results showed that: nighttime temperature increases can accelerate leaf appearance of rice seedlings obviously, and increase dry matter accumulation. But the root growth ability(the root number×average root length) and root length were decreased by nighttime temperature increases.