Vol. 12, Issue 10 (2023)

Author(s):
Anil Kumar Kori, KK Jain, Ajay Kumar shah and Atul Singh

Abstract:
In an 8 to 9 year old Jatropha curcas plantation, planted at a distance of 3x3m, the study was started to determine the growth characteristics of the chickpea (gram) crop under the Jatropha curcas based Agroforestry system over the years 2019-20 and 2020-21. The correlation coefficient between various growth characteristics on gram crop yield significant positive association with Seeds per plant (0.929, 0.812 and 0.880), Plant height (0.807, 0.793 and 0.830), Plant population (0.765, 0.821 and 0.828), Root nodule (0.763, 0.915 and 0.881), and Pods per plant (0.760, 0.832 and 0.821) over the course of both the years and on a pooled basis. Seeds per plant, plant height, plant population, root nodule, and pods per plant all demonstrated a positive and substantial correlation throughout both the years and on a combined basis. The regression analysis revealed that the linear increase in yield attributing parameters was predicted with Plant population (1.390, 1.929 and 1.760), Plant height (0.433, 0.806 and 0.601), No. of branches (6.222, 7.391 and 8.28), Root length (0.476, 2.681 and 2.486), Root nodule (0.668, 0.261 and 0.840), Pods per plant (0.127, 0.187 and 0.158) and Seeds per plant (0.240, 0.286 and 0.263) during both years and on pooled basis. With an increase of one unit for each parameter, yield gains may be anticipated. The most crucial factors in predicting yield are plant population, number of branches, pods per plant, and seeds per plant. The coefficient of determination (R2) value for seeds per plant (0.863, 0.659 and 0.774), plant height (0.652, 0.628 and 0.688) and plant population (0.585, 0.673 and 0.685), followed by root nodules (0.583, 0.058 and 0.775) pods per plant (0.578, 0.693 and 0.672), number of branches (0.452, 0.786 and 0.813) and root length (0.040, 0.570 and 0.492) both in years and on a pooled basis.