PJB-2022-406
ALLEVIATION OF SALINITY STRESS IN OKRA BY THE APPLICATION OF COMPOST, FARMYARD MANURE AND PRESSMUD
Alia Naseem
Abstract
Abstract
The effect of different organic amendments on growth and germination parameters of okra (Abelmoschus esculentus (L.) Moench) plants in saline soil was evaluated in a pot experiment. The organic amendments (compost, farmyard manure (FYM) and press mud) were applied each at the rates of 5% and 10% per pot or in various combinations (compost + FYM, FYM + pressmud and compost + pressmud each at the rates of 2.5% and 5% per pot) to both saline (50 mM sodium chloride) and non-saline soil. The results revealed that growth and germination parameters of okra plants were negatively influenced by the salinity stress. However application of 5% FYM and 2.5% (FYM + pressmud) improved the parameters of germination percentage, germination rate and seedling vigour index in okra plants grown in saline soil than non-saline soil. Overall under saline conditions, 5% pressmud was the most effective treatment in improving growth parameters of okra (plant dry weight, net assimilation rate, no. of leaves per plant and relative increase in no. of leaves) as compared to all other treatments.
Key words: Compost; farmyard manure; okra; organic amendments; pressmud; salinity stress
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