不同生育期昼间亚高温处理对日光温室番茄生产的影响

Effect of Sub-high Temperature in Daytime from Different Phases on Produce of Tomato in Greenhouse

在日光温室番茄的第1花序第1花开花(处理1)时、第1花开花10d(处理2)时,利用温度处理室自动控温系统分别对植株进行昼间35℃亚高温处理,研究不同生育期开始的亚高温处理对番茄植株物候期、果实产量与品质的影响。结果表明:在番茄不同生育期进行昼间35℃亚高温处理,植株的物候期提前,生育期缩短,同时各花序坐果率下降,平均单果重变小,产量降低、品质下降。其中,在开花当天进行35℃亚高温处理的植株,其生长发育、产量与品质均低于开花10d时处理的。

Effects of 35℃ sub-high temperature in daytime from the 1st flower efflorescence and 10 days after efflorescence on the phenophase, yield and quality of tomato in the greenhouse were studied. The resuits showed as follows, long time sub-high temperature in daytime advanced the phenophase of plant and made the plants senescence earlier. The fruit-set ratio, weight of per fruit and the yield and quality of fruits under sub-high temperature all decreased. Results showed that the earlier the plants suffered sub- high temperature from the 1 st flower efflorescence, the worst did the growth and development and the quality and yield of fruits.