A pistachio tree needs to experience the temperature between 2 to 7 degree in fall and winter. This situation creates a normal condition for vegetative and reproductive structures of the tree in spring and will help it to have the proper function to produce.
The chilling period according to pistachio types varies between 600 to 1200 hours.
A lack of adequate chilling causes:
A solution to this problem is the usage of compounds that cause tension and shock to the plant’s respiratory system, and waking it up.
Combination of Volck and Soybean oil along with other material is one solution for helping the trees regarding this need.
Volck oil creates an impenetrable layer of oxygen on the buds, which prevents entering of oxygen into the buds.
The amount of oxygen penetration depends on the thickness of the oil layer and disappearing time, it happens usually after 10 to 14 days. The lack of oxygen created by this layer of oil causes the breakdown of the stagnation in the buds, and boosts plant metabolism to parse the oil. This activity triggers early buds growth.
Here are some tips on spraying the Volck oil:
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