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Impact of Seed Priming and Foliar Application of Nutrients Based Morpho-physiological Changes on Growth and Yield of Greengram (Vigna radiata L.)

Department of Agronomy, School of Agriculture, Lovely Professional University, Phagwara-144 411 (Punjab),
*(e-mail :; Mobile : 83188 34346)
(Received: May 28, 2022; Accepted: June 29, 2022)


The present piece of work was considered to understand the impact of seed priming and foliar application
of nutrients on morpho-physiological growth such as plant height, fresh and dry weight (g)/plant, the
number of leaves, leaf area (cm2)/plant, LAI, HI%, SPAD unit, yield and its attributes of greengram (Vigna radiata L.)/plant. The seeds were primed with salicylic acid and KNO3, while urea and DAP were used as a foliar application for enhancing the growth of the entire plant contributing to the improvement of yield. Out of both the varieties, SML-668 (V1) and Star-452 (V2), V2 was recorded best for most of the parameters as compared to V1, while among the priming+foliar treatments, T5 (KNO 3+1% urea) was recorded superior for all the parameters (90.70 cm, 128.90 and 15.88 g, 1.47, 35.93, 6.47, 29.14, 5.33, 26.33 and 13.07/plant) except to the number of leaves, leaf area/plant which was recorded better in T6 (KNO3+ 1% DAP; 49.00, 440.03 cm2/plant) in V2. However, a similar trend for the performance of treatments
was recorded in V2 (91.3 cm, 381.2 cm2, 1.27, 32.5 and 6.10 g/plant) except for fresh and dry weight, the number of leaves, HI% and number of primary branches/plant, which were recorded as superior in T6 (126.0, 15.67 g/plant, 45.7, 28.69%). Statistical analysis of data showed that all the parameters recorded significant differences at (P>0.05) except for HI%.
Key words : Diammonium phosphate, greengram, harvest index %, KNO3, seed priming, urea