SALINITY INDUCED MORPHO-PHYSIOLOGICAL AND YIELD CHANGES IN FIELD PEA (Pisum sativum L.)

Abstract

Salinity is a major abiotic stress inducing morphological and yield changes in plant as well as limiting production. So a pot experiment was conducted during December 2021 to March 2022 at Agroforestry farm, Sher-e-Bangla Agricultural University Sher-eBangla Nagar, Dhaka-1207. It was done to evaluate the changes in morpho-physiological

and yield characteristics of three field pea varieties (BARI motor 1, BARI motor 2, BARI

motor

3) to salinity under different levels. The three salinity levels (4 dS/m, 8dS/m, 12dS/m) along with a control were inclined by irrigation of NaCl salt solution. The experiment was placed out following two factors Complete Randomized Design with three replications. Results indicated that in response to different salinity level, the three genotypes showed clear differences in the changes in plant height, leaf length, number of leaf, chlorophyll content, relative water content, salt tolerant index, number of pod, number of seed, pod length, pod weight and 100 seed weight and yield of field peas which were significantly decreased with the increased of salinity. Vegetative stage is being more sensitive than flowering and pod-filling stages. The tallest plant (57.05cm), number of leaf per plant (9.50), the highest salt tolerant index value (38.47%), relative water content (37.69%), number of pod per plant (7.33), number of seed per pod and yield (2.23g) were observed from BARI motor 2 at 12 dS/m. Therefore, BARI Motor 2 was the most salt tolerant among the varieties in terms of growth and yield production.