The Effect of Mean Daily Temperature and Relative Humidity on Pollen, Fruit Set and Yield of Tomato Grown in Commercial Protected Cultivation

Agronomy

Kobi Shilo¹  Hadar Fadida²  Danny Harel²  Alik Slepoy²  Shelly Gantz³ 

[1] NaanDanJain Irrigation Company, Naan 7682900, Israel;Negev R & D Center M.P.O Negev 4, Negev 8544100, Israel;Vegetable Department, Extension Services-Ministry of Agriculture, Bet-Dagan 5020000, Israel;

关键词: mean daily temperatures;    fruit set;    pollen;    tomato;    heat stress;    net house;   

DOI  :  10.3390/agronomy4010167

来源: DOAJ

【 摘 要 】

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 of25–26 °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 °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 findingsare discussed.

【 授权许可】

Unknown