Effect of nitrogen and phosphorus on growth and flowering of Gaillardia (Gaillardia pulchella Foug.) cv. local yellow under Jhalawar condition

Abstract

The studies were carried out to study the effect of nitrogen and Phosphorus on growth and flowering of Gaillardia (Gaillardia pulchella Foug.) cv. Local Yellow under Jhalawar condition. The experiment consisting 16 treatments combination with two factors i.e. nitrogen with four levels (control, 100 kg ha-1, 200 kg ha-1 and 300 kg ha-1) and phosphorus with four levels (control, 100 kg ha-1, 200 kg ha-1 and 300 kg ha-1) in Factorial Randomized Block Design with three replications. The individual application of nitrogen treatment N3 (N 300 kg ha-1) maximum plant leaf length (25.61 cm), maximum leaf width (5.73 cm), maximum flower stalk length (16.56 cm), maximum flower fresh weight (4.64 g), earliest first flower bud initiation (50.37 days), maximum number of ray florets per flower (200.75), maximum dry flower weight (0.766 g), maximum length of ray florets per flower (2.44 cm). The individual application of phosphorus treatment P3 (P 300 kg ha-1) recorded maximum leaf length was recorded (24.61 cm), highest leaf width (5.32 cm), maximum flower stalk length per (16.88 cm), maximum flower fresh weight (4.44 g), minimum (52.08 days) to first flower bud initiation, maximum ray florets per flower (190.08), maximum (0.742 g) flower dry weight, maximum (2.39 cm) length of ray florets.