Can spraying water during the jujube tree's flowering period increase the fruit set rate?

Jujube pollen germination requires relatively high air temperature. Especially for small jujube varieties, when the relative air humidity is below 60 to 70%, the pollen germination rate drops noticeably. Spraying water during the flowering period has an obvious effect on improving the jujube fruit set rate. The best time to spray water is in the evening; morning and afternoon give the poorest results. In the evening the temperature is low, water evaporates slowly, and after spraying the high humidity inside the canopy is maintained for a longer time. Also, by evening the pollen has already been fully shed, so the pollen will not be washed away and lost by the water. At noon and in the afternoon, however, the temperature is high and the humidity is low; the clear water sprayed on the leaves and flowers evaporates quickly, the time during which high humidity is maintained is short, the effect is small, and at the same time part of the pollen is washed off.