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Factors affecting the smile of pistachios

Although so far no action after harvesting pistachio shell the percentage of smiling pistachios has shown a favorable effect. However, it has been practically observed that pistachios after drying in storage or due to the heat of the dryer, the gap between the shell and the kernel increases and even in some cases it is observed that with increasing temperature of pistachio recording workshops, pistachio bone shell is so open. It makes the brain fall out of the skin or makes it easier to separate.

Factors affecting the smile of pistachios

The result is that smiling pistachios after harvesting less and after reaching the pistachio recording workshops or processing and drying more of its hard shell becomes a higher percentage of smiling pistachios. Therefore, due to insufficient knowledge of the mechanism of pistachio smile, the effect of factors such as harvest time, irrigation (amount of irrigation) and especially foliar application can not be ignored.

Because experience has shown that in order to have the highest amount of smiling pistachios in Kerman cultivar as mother and inoculating it with Peters pollen as father base and observing the harvest season based on the color of the outer bark and also watering the tree in August and September, the amount of smiling Pistachio can be grown and leaf decomposition in this case has shown that the bar should not be less than 250 PPM.