Growth and yield of lentil (Lens culinaris Medik.) as affected by stressmitigating chemical spray and soil variability
Keywords:
Abscisic acid, Coastal saline zone, New alluvial zone, Proline, Salicylic acid, Salinity, Seaweed extractAbstract
In the present investigation, the effect of various stress-mitigating chemicals on growth and yield of lentil (cv. Moitree) grown was studied under two diverse soil conditions. Lentils sown in new alluvial soil exhibited greater germination rates compared to those in coastal saline soil. The salicylic acid (SA) treatment resulted in the tallest plants of 21.00 and 39.50 cm heights at 30 and 40 days after sowing (DAS), respectively, followed by ABA application. Application of ABA led to the highest fresh and dry weights, followed by SA. Initially, ABA-treated plants had the longest roots, while at later stages SAtreated plants possessed greater root length surpassing others significantly. The stress-mitigating chemicals improved lentil yield attributes like branch/ plant and pod/branch significantly, and SA foliar application enhanced both the attributes by 60.33% and 53.33%, respectively compared to control treatment. Additionally, lentils in alluvial soil had significantly higher chlorophyll content than those in coastal saline soil, and SA spray yielded the highest chlorophyll fractions. Application of all the stress-mitigating chemicals proved to enhance the overall performance of lentil grown under both coastal saline and new alluvial different soils. Specifically, salicylic acid spray (at 20 and 40 DAS) were found to be the best treatment with respect to lentil yield augmentation and salinity stress mitigation.
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