2024, Vol. 7, Special Issue 8

author(s)
Mansi Thakur, Kartikeya Choudhary and Ranjeet Singh Bochalya

abstract
A field experiment entitled “Effect of Plant Growth Regulators on Growth and Yield of Pea (Pisum sativum L.)” was conducted during rabi season of 2023-24 at the Kalaghat Agriculture Farm, MS Swaminathan School of Agriculture, Shoolini University of Biotechnology and Management Sciences, Solan. The soil of experimental field was sandy loam in texture, neutral in reaction with EC in safer range, medium in organic carbon, nitrogen, phosphorus and potassium. The experiment was laid out in randomized block design comprising of nine treatments of plant growth regulators viz. (T₁) TRIA 0.5 ppm, (T₂) AUX 12 ppm (Auxin), (T₃) GA₃ 12 ppm (Gibberellic acid), (T₄) CK 1.5 ppm (Cytokinin), (T₅) TRIA 0.5 + AUX 12 ppm, (T₆) TRIA 0.5 + GA₃ 12 ppm, (T₇) TRIA 0.5 + CK 1.5 ppm, (T₈) TRIA 0.5 + AUX 12 + GA₃ 12 ppm+ CK 1.5 ppm and (T₉) Control with three replications. Recommended dose of fertilizer (20:60:30 kg NPK ha^-1) were applied through urea, SSP and MOP at the time of sowing as basal dose. PB-89 variety of pea was used for sowing. Application of plant growth regulators were applied at 15 and 30 DAS as per treatment. Other crop management practices were followed as per the recommendation of the area. Significantly higher plant height, number of branches plant^-1, dry matter accumulation and crop growth rate of pea were observed with application of (T₈) TRIA 0.5 + AUX 12 + GA3 12 ppm + CK 1.5 ppm which was statistically at par with (T₆) TRIA 0.5 + GA3 12 ppm, respectively over rest of the treatments.