Effect of shading, organic fertilizer and Gibberellic acid on the flowering growth of (Lavandula angustifolia) growing in Kalar city

Abstract

The experiment was conducted in the city of Kalar for the period from April 1, 2022 to September 1. The experiment included three factors. The first factor is the percentage of shading at two levels open field and 50% lath house. The second factor was organic fertilizer for poultry (Penguin) at three levels (0, 25, 50) gm.plant-1, and the third factor was spraying with Gibberellic acid at three levels (0, 250, 500) mg. L-1. The experiment was designed according to a completely randomized design (R.C.B.D.). The results showed the following. The 0% shading treatment had a significant effect on the characteristics of the number of flower clusters (19,836 clusters per plant), the length of the flower clusters (23,327 cm), the length of the flower (7,768 cm), and the fresh weight of the flower. Inflorescence (0.390 g), and the number of flowers in one inflorescence (36,095 flowers. Pink inflorescence. Plant-1). As for the effect of organic fertilizer (Penguin), both concentrations (25 and 50 gm Plant-1) had a significant effect. Characteristics of flower spike length (23.239 and 23.217 cm). Inflorescence length (6.699, 7.133 cm), inflorescence fresh weight (0.292, 0.298 g), and number of flowers in inflorescence (30.438, 30.715 flowers. inflorescence. plant-1), respectively. As for the effect of spraying with Gibberellic acid, the concentration treatment (250 and 500 mg L-1) significantly affected the length of the flower spike (22.812 and 23.215 cm). Respectively, treatment with 250 mg.L-1 significantly affected the length of the inflorescence (6.977 cm) and the number of flowers per inflorescence (30.656 flowers.Flower-1).