Influence of Plant Growth Regulators on Yield and Qualitative Parameters in Strawberry (Fragaria x anannasa) cv. Winter Dawn under Protected Cultivation

Abstract

The present investigation was carried out during 2021-2022 to find out the effect of plant growth regulators on yield and qualitative parameters in strawberry (Fragaria x anannasa) cv. Winter Dawn under protected cultivation at Precision Farming Development Centre (PFDC), Department of Horticulture, Chaudhary Charan Singh Haryana Agricultural University, Hisar. The experiment was conducted with ten treatments using randomized block design. Each treatment had three replication. The treatment consisted of three different concentration of plant growth regulators viz. T1: NAA 25 ppm, T2: NAA 50 ppm, T3: NAA 75 ppm, T4: GA3 25 ppm, T5: GA3 50 ppm, T6: GA3 75 ppm, T7: CCC 500 ppm, T8: CCC 750 ppm, T9: CCC 1000 ppm and T10: Control. The yield and quality of strawberry were significantly influenced by plant growth regulators. The highest quality of fruit in term of berry weight (16.57g), berry breadth (2.87cm), berry length (3.97cm), TSS (9.38oBrix), TSS/acid ratio (14.89) and ascorbic acid (60.13mg/100g) were observed in T9 treatment which was consist cycocel@1000 ppm while GA3@75 ppm gave maximum results in terms of marketable yield (88.27%), yield per plant (304.26g) and anthocyanin (5.67mg/100g) in strawberry fruit.