Development of Leaf Area Model in Chokeberry Plant Grown in Different Irrigation Water Quality

Abstract

Chokeberry is a berry fruit species that has grown in the world in a few decades, and it is used in many fields, especially in the pharmaceutical industry. There needs to be a study examining the relationship between leaf area and irrigation water quality in this species, whose cultivation has started to increase. In this study, which was carried out between 2021 and 2022, the effects of irrigation water quality on leaf area in 1-year-old chokeberry plants of the 'Viking' variety grown in peat and soil media were determined. Irrigation water with 0.65 dS m-1 (Control), 2dS m-1, 4dS m-1, 8dS m-1, and 10dS m-1 electrical conductivity were used in the study. A model was developed in this study to estimate leaf area (LA) using leaf width (W) and leaf length (L) values to determine leaf area. The proposed prediction model was determined as "LA=2.86+4.448×W+0.33×L2-1.496×L " (R2= 0.99). Three-dimensional graphs of the developed models were drawn, and the changes in leaf width, length, and leaf area values against irrigation water salinity were determined. As a result, it was determined that there was a negative relationship between the electrical conductivity of irrigation water and leaf width, length, and area values.