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Journal of Ornamental Horticulture
Year : 2007, Volume : 10, Issue : 3
First page : ( 153) Last page : ( 156)
Print ISSN : 0972-0499.

Response of Micro-Nutrients on Flowering, Yield and Xanthophyll Content in African Marigold (Tagetes Erecta Linn.)

Balakrishnan V., Jawaharlal M., Kumar T. Senthil, Ganga M.

Department of Floriculture and Landscaping, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641003, Tamil Nadu. e-mail: jawaharflori@yahoo.com

Abstract

Studies on effect of micro-nutrients on flowering, flower yield and xanthophyll content in African marigold (Tagetes erecta Linn.) hybrid L3 were conducted during2004-2005 in monsoon and winter seasons. The results revealed that spraying of plants with 0.5% zinc sulphate + 0.5% ferrous sulphate recorded the early flowering (48.01 and 39.78 day), highest flower diameter (7.93 and 8.17 cm) and number of flowers per plant (35.68 and 54.55). The same treatment also recorded the highest flower weight (15.17 g) and flower yield (26.37/ha) in winter season. While 0.2% boric acid gave highest flower weight (13.77 g) and 0.5% zinc sulphate + 0.2% boric acid gave highest flower yield (6.32 t/ha) in monsoon season. The plants sprayed with 0.5% ferrous sulphate recorded the highest total leaf chlorophyll content (1.965 mg/g) in monsoon season and 0.5% zinc sulphate + 0.5% ferrous sulphate recorded the highest leaf chlorophyll content (2.135 mg/g) in winter season. Zinc sulphate 0.5% + ferrous sulphate 0.5% + sodium molybdate 0.02% and ferrous sulphate 0.5% + sodium molybdate 0.02% recorded the highest exnthophyll content of 2.419 g/100 g and 1.896 g/100g in monsoon and winter season, respectively.

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Keywords

Chlorophyll, Marigold, Micro-Nutrient, Xanthophyll.

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