Determination of the Average Annual Increments in Height and Stem Diameter of Juglans Regia L. Tree Forms in the Walnut Collection of the Main Botanical Garden of Almaty During the Period 2013–2022 and Assessment of the Relationships Between These Parameters

The results of introduction studies on the biometric parameters of Persian walnut (Juglans regia L.) forms cultivated under the conditions of the Main Botanical Garden in Almaty are presented. Statistical modeling was employed to conduct a comparative analysis of long-term age-related changes. Independent variables were obtained in the form of minimum, maximum, and mean values for tree height, stem diameter, crown horizontal projection, and bole height across the collection. Confidence intervals and standard deviations were determined, and the relationships among the studied parameters were assessed through regression analysis, resulting in the derivation of regression equations and correlation coefficients.

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