期刊
AGRONOMY-BASEL
卷 4, 期 1, 页码 167-177出版社
MDPI
DOI: 10.3390/agronomy4010167
关键词
mean daily temperatures; fruit set; pollen; tomato; heat stress; net house
资金
- vegetable committee of Israel
The research trial was carried out in the Mediterranean region where high summer temperatures have been proved to have a detrimental effect on the delicate tomato fruitset process. The flower to fruit set process was simultaneously monitored in fogged and unfogged shelters during the three-month Mediterranean summer season. Comparisons of pollen quality, fruit set rates and fruit yield revealed that mean daily temperatures of 25-26 degrees C are the upper limit for proper fruit set and fruit yield for tomatoes grown in protected cultivation during the hot Mediterranean summer period. A moderate reduction of 1-1.5 degrees C in mean daily temperatures together with the increased RH (relative humidity) from 50% to 70% during day time improved the pollen grain's viability. Suggestions concerning more efficient controls on the fogging system considering those findings are discussed.
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