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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (15): 291-295.

所属专题： 园艺； 农业气象

• 林学 园艺 园林 • 上一篇    下一篇

空气湿度对高温下番茄生殖生长的影响

薛义霞 李亚灵 温祥珍   

  • 收稿日期:2010-03-04 修回日期:2010-04-15 出版日期:2010-08-05 发布日期:2010-08-05

Effects of Air Humidity on the Flowering and Fruit-set of Tomato under High Temperature

  • Received:2010-03-04 Revised:2010-04-15 Online:2010-08-05 Published:2010-08-05

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摘要：

利用人工气候室，研究了空气湿度对高温下番茄开花坐果的影响。试验设置2个空气相对湿度处理，即70%±5%（高湿处理）和不加湿（低湿处理，作为对照）。结果表明，在10:00至16:00平均温度为36.5℃的高温条件下，55%的低湿处理造成植株营养不良和花蕾灼伤，使落蕾率增加，开花较少，坐果率较低；而70%的高湿处理，改善了植株的营养条件，减少了花蕾灼伤，使开花率提高了27% ~ 34%，坐果率提高了26% ~ 30%。表明在36.5 ℃的高温条件下，70%的相对湿度有利于番茄开花坐果。

关键词: 菰, 菰, 重金属, 吸收, 富集

Abstract:

Abstract: The effects of air relative humidity (RH) on the flowering and fruit-set of tomato under high temperature were investigated in growth chambers. Two air relative humidity treatments from 10:00 to 16:00 were 70% ± 5% (high RH) and non-humidification (low RH, as control). The results showed under the high temperature (the average temperature from 10:00 to 16:00 was 36.5 ℃), inadequate carbohydrate and burned flower buds in 55% RH (low RH) increased rate of flower buds drop and lead eventually low fruit set. However, when the air humidity reached 70%, rate of flower blooming and fruit set was improved by 27%~34% and 26%~30%, respectively, which resulted from enhanced carbohydrate supply and decreased burned-flower buds. As a conclusion, relative humidity of 70% (high RH) was fit for flowering and fruit-set of tomato under high temperature of 36.5 ℃.