Document Type : Original Article


1 Department of Agriculture, Islamic Azad University, Sirjan, Iran

2 Department of Chemistry, Islamic Azad University, Sirjan, Iran

3 Young Researchers and Elites Club, Sirjan Branch, Islamic Azad University, Sirjan, Iran


Pollination is the mechanical transfer of male pollen of a flower on the female stigma.This process has a fundamental role to survive the plants species.Since this process is invisible ,its importance has been ignored.Insufficient pollination can be harmful for the farmer instead of being useful.Pollination can be done via some ways.The most important ways are done by insects and wind.Pistachio tree because of different sorts of its pollination is sighnificant .To implant the pistachio trees in a 100-meter row,thirty female trees and just one male tree is needed that the male one is put in the front of the row.Spring season(April)is the season of pistachio tree pollination . Wind speed and direction are basic factors for pistachio pollination . In this paper , the speed of seasonal wind of Sirjan has been researched during ten years (2002-2012) and the pistachio gardens productivity were compard.(The gardens which were in front of wind direction).


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