Effect of nitrogen and phosphorus levels on flowering of calendula (Calendula officinalis L) var. touch of red Mixture
SA Samoon, Neelofar, Zaffar Bashir, KS Kirad and AA Lone
An experiment entitled “effect of different levels of nitrogen and phosphorus on Calendula under sub-tropical agro-climatic conditions of Allahabad was carried out during the winter season 2007-2008 with four levels each of nitrogen viz., 0 kg, 100 kg, 150 kg and 200 kg/ha and phosphorus viz., 0 kg, 50 kg, 80 kg, and 110 kg/ha respectively. Nitrogen had a significant effect on floral parameters with nitrogen at 150 kg/ha recording significantly minimum days (64.55) to first flowering and days to 50% flowering (78.16), maximum flower weight (4.48 g/flower), number of flowers per plant (31.66), flower diameter (6.32 cm) and flower yield (136.04 q/ha. Among phosphorus applications significantly minimum numbers of days to first flowering (78.10) were recorded under phosphorus 80 kg/ha. The same treatment recorded significantly maximum flower weight (4.51 g/flower), number of flowers/plant (31.83), flower diameter (6.35 cm) and flower yield (140.8 q/ha).Interaction between nitrogen and phosphorus revealed that N2 P2 @ 150 kg N and 80 kg P/ha) gave significantly superior results in relation to the flowering parameters which included days to first flowering (62.33), number of flowers per plant (35.77) and flower yield (165.58 q/ha).
How to cite this article:
SA Samoon, Neelofar, Zaffar Bashir, KS Kirad, AA Lone. Effect of nitrogen and phosphorus levels on flowering of calendula (Calendula officinalis L) var. touch of red Mixture. Pharma Innovation 2018;7(5):39-41.