Agro and extraction technology for Wild marigold (Tagetes minuta)

The flowers yield 0.3-0.50% essential oil rich in ocimenones and other compounds. T. minuta oil finds a good market in perfumery  and flavour industry. The presence of three important acyclic monoterpene ketones and hydrocarbon in the oil are good source base material for the synthesis of value added aroma chemicals.

Finds habitat in western Himalayas between altitudes of 1000- 2500 m. HP, J&K and hills of Uttaranchal are the main growing regions. Can be successfully cultivated in plains.

Prefers slightly acidic soil (pH = 5.5 to 7.7). A well drained sandy loam to clay loam soil having sufficient amount of humus. Average temperature of 12 ^oC – 30 ^oC during reproductive phase of the crop.

Through direct seed sowing (2.5- 3.0 kg seed /ha) or through raising nursery and then transplanting in mid June (main crop) or in September (Autumn crop)Though seeds in Nov. or March/April using 3-4 kg seeds/ha. Propagation through seedlings gives better results

Main crop requires 3-4 irrigations per month. Autumn crop require 2- 3 irrigations per month. Plant does not require frequent irrigation. 120 kg N/ha is required in 3 split doses. 40 kg N, 60 kg P and 40 kg K along with 30 tons/ha FYM applied at the time of land preparation. Essential oil is present in leaves. Crop should be harvested at full bloom above the ground at the height where green leaves are attached with stem. Harvest crop in Oct. - Nov. for main crop and in Late Dec. for Autumn crop.

60-68 kg oil (0.30 % oil) for main crop and 20-25 kg oil (0.50 % oil) for Autumn crop.

Institute of Himalayan Bioresource Technology,Post Box No. 6 Palampur (H.P.) 176061 INDIA Tel: +91-1894-230742-43 Fax: +91-1894-230433
E-mail:director@ihbt.res.in