Journal of Advances in Biology & Biotechnology

The experiment was carried out for two consecutive years during 2022-23 and 2023-24, to study the effects of various transplanting time and varieties on growth parameters of knolkhol. The experiment was conducted at Horticulture Nursery Farm, College of Agriculture, Navsari Agricultural University Campus Bharuch, Gujarat (India), during the Rabi seasons of year 2022 and 2023.The experiment was laid out in Split Plot Design (SPD), which included twelve treatments consisting of combination of three time of transplanting (T₁: 1^st week of November, T₂: 3^rd week of November, T₃: 1^st week of December) and four varieties (V₁: Purple Vienna, V₂: Pusa Virat, V₃: Early White Vienna and V₄: White Vienna). All the twelve treatment combinations transplanted with four replications. The result revealed that the treatment 3^rd week of November transplanting recorded maximum plant height (27.42 cm, 27.06 cm and 27.24 cm), plant spread East–West (38.66 cm, 37.95 cm and 38.04 cm), plant spread North–South (36.61 cm, 37.68 cm and 36.95 cm) and leaf area (272.58 cm², 271.61 cm² and 272.09 cm²). While for the different varieties, White Vienna (V₄) had maximum plant height (26.90 cm, 26.54 cm, 26.72 cm), plant spread N-S (35.91 cm, 36.93 cm, 36.42 cm), plant spread E-W (37.98 cm, 37.23 cm, 37.61 cm) and leaf area (265.41 cm², 266.87 cm², 266.14 cm²) in 2022–23, 2023–24, and pooled means respectively.