Bio stimulants like amino acids and filmic acids, aid in the penetration of nutrients into the plant system and increase the antioxidant enzyme activity which provides stress tolerance to plant and enhances crop performance. To evaluate the potential effectiveness of foliar application of Ambition- a biostimulant in apple, an experiment was conducted at Regional Horticultural Research & Training Station, Sharbo (Kinnaur, Himachal Pradesh), to determine the response of Ambition- a biostimulant on yield and quality of apple cv. Super Chief. Ambition - a biostimulant at various stages influenced physical and chemical parameters of Super Chief apple. Higher doses of Ambition foliar application i.e. Ambition @400ml/100L water and 200ml/100L water per plant, At initiation of pink bud stage, 15 days after first application, 30 days after second application, 30 days after third application resulted in improvement in Yield, fruiting and quality parameters of apple.
