【摘要】 为了研究春、秋季节日光温室内昼间亚高温对番茄(Lycopersic esculentum Mill.)生产的影响,在植株第1花序开花时,分别对其进行5,10,15,20d的35℃昼间亚高温处理,以昼温25℃为对照,探讨不同天数的35℃亚高温处理对番茄果实生长发育及产量、品质的影响。结果表明:5d的35℃昼间亚高温处理即可导致番茄坐果率显著降低,平均单果重下降,空洞果比例明显增加,导致每667m2总产量降低32.62%,并且亚高温处理的天数越长,果实产量越低、品质越差。35℃昼间亚高温处理5d即可对番茄果实的生长发育造成不可逆的影响,最终导致经济效益显著降低。更多还原

【Abstract】 In order to know the harm of high temperature in daytime in the Spring and Autumn season on tomato(Lycopersic esculentum Mill.) and to supply academic evidence for the temperature regulation of tomato production in greenhouse,effects of 35℃ sub-high temperature in daytime on the growth and development,yield and quality of tomato fruits in greenhouse were studied.When the 1st inflorescence of plants anthesised,plants were treated by 35℃ for 5d,10d,15d and 20d respectively,with 25℃ in daytime as the control.The results were as follows: the fruit-set ratio of plants that were treated by sub-high temperature for 5 days decreased significantly,and the fresh mass per fruit obviously lessened and the yield decreased by 32.62% for treatment 1.The longer the plant suffered from sub-high temperature,the worse did the fruit quality and yield.It suggested that 5 days of 35℃ sub-high temperature in daytime can make changes of the development,yield and quality of tomato fruit changes and these changes could not be resumed.All of these could induce significant decrease of economy benefit.更多还原