Vol. 12, Issue 7 (2023)

Author(s):
Anamika Varma, BV Thumar, Kruti Dobariya and JS Parasana

Abstract:
The investigation took place at the Floriculture Farm, Jambuvadi, Department of Horticulture, Junagadh Agricultural University, Junagadh (Gujarat). A Randomized Block Design with a factorial concept was employed, involving twelve treatment combinations. These combinations consisted of three levels of nitrogen (100, 150, and 200 kg ha^-1), two levels of phosphorus (50 and 75 kg ha^-1), and two levels of potassium (75 and 100 kg ha^-1). Regarding flowering parameters, it was found that nitrogen at 150 kg ha^-1, phosphorus at 75 kg ha^-1, and potassium at 100 kg ha^-1 resulted in the minimum number of days required for the initiation of the first flower bud (28.21 days, 29.01 days, 28.91 days respectively), the formation of the first flower (30.79 days, 30.61 days, 31.56 days respectively), and the overall duration of flowering (75.99 days, 73.28 days, 74.02 days respectively). On the other hand, the treatment with 200 kg ha^-1 of nitrogen, 75 kg ha^-1 of phosphorus, and 100 kg ha^-1 of potassium improved yield parameters, including the number of flowers per plant (117.52, 114.92, 116.88 respectively), fresh weight of 100 flowers (98.49 g, 92.51 g, 93.13 g respectively), dry weight of 100 flowers (27.99 g, 27.15 g, 27.57 g respectively), flower yield per plant (113.86 g, 105.49 g, 93.13 g respectively), and flower yield per plot (1024.73 g, 949.45 g, 947.13 g respectively). Furthermore, the soil nutrient status exhibited improvement as the availability of nitrogen, phosphorus, and potassium in the soil increased (234.92 kg ha^-1, 57.14 kg ha^-1, 230.11 kg ha^-1 respectively).