Goyal, R.K.Samiullah2020-02-012020-02-012019http://krishikosh.egranth.ac.in/handle/1/5810142285The present investigation was carried out to study the effect of salicylic acid, sodium nitroprusside and putrescine on growth, yield, quality and storage of strawberry (Fragaria × ananassa Duch.) cv. Winter Dawn in the Department of Horticulture, CCS Haryana Agricultural University, Hisar during 2018-19. The salicylic acid (2mM, 4mM and 6mM), sodium nitroprusside (4μM, 6μM and 8μM) and putrescine (1mM, 2mM and 3mM) were sprayed on plants 20 and 40 days after transplanting. The fruit length, fresh weight and juice content increased in plants sprayed with salicylic acid, sodium nitroprusside and putrescine as compared to control. The strawberry plants treated with salicylic acid at 4mM significantly increased plant spread (30.25 cm), number of leaves (20.66). Maximum TSS (7.5%), ascorbic acid (45.90 mg/100ml), anthocyanin content (46.50 mg/100ml) and organoleptic rating (7.6), whereas, fruit colour ‗b‘ value (15.61) was significantly higher at PU at 1mM as compared to other treatments. Maximum TSS (7.55%), anthocyanin content (49.83 mg/100ml), juice content (62.6%) organoleptic rating (7.4) and minimum loss in weight (6.38%)were recorded in SA at 4 mM on fourth day of storage. Reduction in decay loss was observed on 4th day with the all treatments except control.ennullThesis