Author(s):

PR Hange, SR Barkule, AS Lohakare and GN Thalkari

Abstract: The experiment was laid in Factorial Randomized Block Design (FRBD) with two factors replicated thrice by using the variety White Vienna. The treatment comprises of fertilizer at three levels ( F₁-75% of Recommended Dose of Fertilizer (RDF), F₂-125% of RDF and F₃-100% of RDF) and spacing at four levels (S₁-30x15 cm, S₂-30x30 cm, S₃-45x30 cm and S₄-45x45 cm) with twelve treatment combinations. The fertilizer level F₂ (125% of RDF) had recorded maximum values for diameter of knob (6.86 cm), volume of knob (109.89 cc), average weight of knob (147.34 g plant^-1), yield (167.17 q ha^-1), ascorbic acid (41.65 mg 100 g^-1) and total soluble solid (3.26 ⁰Brix). While earliest days to 50% knob initiation (24.68) and days to knob harvest (54.76 days) was recorded in fertilizer level F₁ (75% of RDF). Similar trend was noticed in spacing S₄ (45x45 cm) for all above traits but maximum yield (236.10 q ha^-1) was recorded in S₁ (30x15 cm). The interaction effect of the treatment combination F₂S₄ (125% of RDF + 45x45 cm) recorded maximum values for all yield and quality traits except highest yield (252.34 q ha^-1) was recorded in F₂S₁ treatment combination.

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