Summer production of pea is significantly low because pea is an essential winter season vegetable crop. Therefore, there is a dire need to explore novel strategies to increase the production of pea in the summer season. Triacontanol is a plant growth promoter that is well-known to increase crop production. Salicylic acid is the most widely recognized plant growth regulator against abiotic stresses. Hence the current research was conducted to study the effect of triacontanol levels (control, 25, 50, 75 uM L^-1) and salicylic acid concentrations (control, 75, 150, and 225 mg L^-1) on the performance of peas (cultivar Climax) grown in the summer season. The research was carried out in Randomized Complete Block Design (RCBD) having two factors and three replications. Maximum plant height, primary branches plant^-1, number of leaves plant^-1, leaf chlorophyll content, number of pods plant^-1, seeds pod^-1, pod length, and yield ha^-1 were recorded in plants treated with 50 μM L^-1 triacontanol. Regarding salicylic acid concentrations maximum plant height, primary branches plant^-1, number of leaves plant^-1, leaf chlorophyll content, number of pods plant^-1, seeds pod^-1, pod length, and maximum yield ha^-1 were recorded in 225 mg L^-1 of salicylic acid concentration. The interaction effects reported best results at the Triacontanol level of 50 µ M and Salicylic acid concentration of 225 mg L^-1   for the studied attributes.  It is concluded that pea cultivar Climax treated with 50 µM L^-1 triacontanol concentration and 225 mg L^-1 salicylic acid concentration could be grown for better growth and yield in the summer season in the agro-climatic conditions of Peshawar.

KEYWORDS: Triacontanol, Salicylic acid, Climax, Yield, Pisum sativum, summer.