Effect of Micronutrients on Growth and Flowering of Marigold cv. Siracole

A field experiment was conducted to evaluate the effect of FeS0₄, MnS0₄ and their combination on growth and flowering of Tagetes erecta cv. Siracole. Highest linear growth (68.88cm) of marigold was recorded in plants treated with 0.25%MnS0₄+ 0.25%FeS04. Plant spread (63.79cm), number of branches (19.10), leaf area (5.36cm.sq.), fresh and dry matter accumulation (431.69g & 105.59g), crop growth rate (7.98 g/m.sq./days), biomass duration (2783.03 g.days), number of flowers per plant (78.66), yield of flowers (35.99 t/ha) and petal meal per kilogram of fresh flowers (390.3 g/kg) and carotene content (2.26mg/g) were recorded highest in plants treated with 0.5% FeS0₄+ 0.25%MnS0₄ at all stages of crop growth. Plant chlorophyll and iron content were recorded highest with 0.5%FeS0₄ while manganese content was significantly increased with the application of MnS04@0.5%.