This study delves into the chilling requirements of four pistachio cultivars within the unique climatic conditions of Semnan Province, Iran. Recognizing the critical role of chilling hours in the successful cultivation of pistachios, the research aims to provide insights into the specific needs of these cultivars for optimal growth and yield. Through systematic observation and analysis, the study sheds light on the nuanced chilling requirements, contributing valuable knowledge for pistachio growers in Semnan Province and beyond.
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