Abstract
The effect of phosphorus and plant density on floral yield and corm production of Crocus sativus was studied at horticulture department, faculty of agricultural Kabul University during 2019-2020. Four different phosphorus (P) doses i.e. 0, 20, 40 and 60 kg ha-1 were applied to five different densities viz. 242, 107, 54, 30 and 20 plants m-2. The experiment was laid out in randomized complete block design with split plot arrangements. P effect was largely non-significant, whereas planting densities had considerable effects. Maximum days to sprouting (29.8), and in the second year maximum saffron yield ha-1 (10.4 kg) were produced by 242 plants m-2, while minimum in these were recorded at 20 plants m-2 density. Maximum stigma weight (5.33 mg), Maximum flowers size (3.8 cm) was produced by 30 plants m-2 density at 20 kg ha-1 P, and maximum flowers per plant (1.5) were produced by 20 plants /m-2 densities at 20 kg ha-1 P. Minimum flowers per plant (1.0) were produced by corms at 107 plants m-2 density supplied with 60 kg ha-1 P, and minimum flower size (2.8 cm) was observed in plants grown at 54 m-2 density fed with 40 kg ha-1 P.
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