Author(s):

Kamal K Pande and DC Dimri

Abstract: An investigation was conducted at Krishi Vigyan Kendra (ICAR- VPKAS), Kafligair, Bageshwar (Uttarakhand) in randomized block design with three replications and ten treatments during the years 2016 and 2017 in peach cv. Red June. The treatments comprised three levels of nitrogen fertilization (375 g, 500 g, 625 g per tree through neem coated urea) along with three concentrations (0.5%, 1.0% and 1.5 %) of calcium chloride for foliar spray, and a control (500 g N per tree through neem coated urea along with water spray). Thus there were ten treatments viz., 375 g N per tree + 0.5% Ca Cl₂ (T₁), 375 g N tree^-1 + 1.0% Ca Cl₂ (T₂), 375 g N tree^-1 + 1.5% Ca Cl₂ (T₃), 500 g N tree^-1 + 0.5% Ca Cl₂ (T₄), 500 g N tree^-1 + 1.0% Ca Cl₂ (T₅), 500 g N tree^-1 + 1.5% Ca Cl₂ (T₆), 625 g N tree^-1 + 0.5% Ca Cl₂ (T₇), 625 g N tree^-1 + 1.0% Ca Cl₂ (T₈), 625 g N tree^-1 + 1.5% Ca Cl₂ (T₉), 500g N tree^-1 + Water spray (T₁₀ control). The experimental findings revealed that maximum polar diameter of fruits (60.49 mm in 2016 and 61.45 mm in 2017), fruit width (58.68 mm in 2016 and 59.38 mm in 2017), fruit weight (91.41 g in 2016 and 91.71 g in 2017) and fruit volume (96.32 ml and 96.93 ml in first and second year, respectively) of fruits were measured in T₅ while the minimum values for these attributes were recorded under T₇. In first year the maximum specific gravity of fruits was measured under T₂ and in second year under T₁, however in both the years it remained statistically at par among T₁, T₂ and T₃. The maximum TSS – Acid ratio (11.82 in 2016 and 11.45 in 2017) and ascorbic acid content (3.747 mg/100 g in 2016 and 3.700 mg/100 g in 2017) were recorded in treatment T₂. Treatments T₁, T₂ and T₃ took minimum days (65.33 in 2016 and 66.67 in 2017) from fruit set to give first harvest in both the years of experiment, but statistically these were at par to T₄, T₅, T₆ and T₁₀.

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