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Abstract

Garden pea (Pisum sativum L.) is a nutritious crop whose productivity is limited by poor nutrient management, leading to delayed flowering and lower yields. This study examined the effects of phosphorus and foliar glycine application on the growth and yield of garden pea. It was carried out at the Horticulture Research Farm, University of Agriculture, Peshawar. The experiment used a Randomized Complete Block Design with two factors and three replications. Factor A was phosphorus levels (40, 60, and 80 kg ha⁻¹), while Factor B was glycine concentrations (0, 90, 180, and 270 mg L⁻¹). Both treatments significantly affected growth and yield traits, except for branches per plant. Applying phosphorus at 80 kg ha⁻¹ resulted in maximum plant height, leaves per plant, pods per plant, pod length and diameter, seeds per pod, chlorophyll content, hundred seed weight, root fresh weight, and pod yield, while also significantly reducing days to flowering and first harvest. Most growth and yield parameters at 80 kg ha⁻¹ phosphorus were similar to those at 60 kg ha⁻¹. Foliar applications of glycine at 270 mg L⁻¹ were most effective, improving plant height, leaf number, pod characteristics, seed parameters, chlorophyll content, root biomass, and overall yield by promoting earlier flowering and harvest compared to lower concentrations and control treatments. The study recommends combining phosphorus at 60 kg ha⁻¹ with foliar application of glycine at 270 mg L⁻¹ for optimal growth, yield, and early harvest of garden pea.

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