“Effect of graded levels of Nitrogen and Humic Acid on Growth, Yield and Quality of Essential Oil derived from herbage of marigold (Tagetes Patula L.) cv. Arka Pari”

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dc.contributor.advisorPhurailatpam, Arunkumar
dc.contributor.authorOjha, Ritayani
dc.contributor.otherMomin, Ch. Kalkame
dc.date.accessioned2023-02-16T10:12:50Z
dc.date.available2023-02-16T10:12:50Z
dc.date.issued2023-01-28
dc.descriptionMarigold (Tagetes patula L.), has a good demand in the world market for its essential oil.Nitrogen nutrition have a big impact on essential oil biosynthesis and humic acid enhances soil fertility and increases nutrient availability to plants, influencing plant development and production.With this backgroundthe present investigation was undertaken at the field near orchideria, Department of Floriculture and LandscapeArchitecture, College of Horticulture and Forestry, CAU (Imphal), Pasighat, Arunachal Pradesh during the year 2021-22.en_US
dc.description.abstractThe experiment was laid out in factorial randomized block design with three levels of Humic acid (Control, 20 kg/ha and 40 kg/ha) and four levels of Nitrogen (Control, 100 kg/ha, 150 kg/ha and 200 kg/ha) which was replicated thrice. The observations were recorded in respect of vegetative growth parameters, flowering parameters, yield parameters and quality parameters.The significantly maximum height of plant, number of primary and secondary branches/ plant, plant spread, stem diameter, leaves/plant, fresh weight of leaves and plant and leaf area were recorded in Humic acid 40 kg/ha as well as Nitrogen 200kg/ha.The flowering parameters in term of days taken to bud initiation, days to flower bud maturity, days to first flowering, days to 50% flowering and days to first harvest was significantly minimum with Humic acid 40 kg/ha as well as Nitrogen 200kg/ha. Whereas, significantly maximum duration of flowering was recorded in Humic acid 40 kg/ha as well as Nitrogen 200kg/ha.The yield parameters in respect of number of flowers/ plant, fresh weight of flowers, flower yield/ plot and flower yield/ plant, were recorded significantly maximum in Humic acid 40 kg/ha as well as Nitrogen 200kg/ha. Whereas, the highest essential oil yield was observed in Humic acid 40 kg/ha and Nitrogen 150 kg/ha.The quality parameter in respect of flower diameter were recorded maximum in Humic acid 40 kg/ha as well as Nitrogen 200kg/ha.The chemical compositions of hydrodistilled essential oil from the herbage of Tagetes patula cv. Arka Pari were analysed using GCMS (Gas chromatography- Mass spectrometry). The major compounds identified were D- Limonene, cis β- ocimene, trans β- ocimene, Dihydrotagetone, 2- carene, (Z)- myroxide, (E)- Tagetone, (Z)- Tagetone, Levoverbenone, Piperitone, Piperitenone, 3- Carene-5-one, Caryophyllene and Germacrene D.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810193907
dc.keywordsTagetespatula cv. Arka Pari, Humic acid, Nitrogen, Essential oil, GCMSen_US
dc.language.isoEnglishen_US
dc.pagesxiv+123en_US
dc.publisherCollege of Horticulture and Forestry, Central Agricultural University, Pasighat -791102 Central Agricultural University (Imphal)en_US
dc.research.problem1. To Study the effect of Nitrogen and Humic Acid on vegetative, flowering and yield characters of T. patula. 2. To investigate the effect of Nitrogen and Humic Acid on essential oil yield and quality of T. patula.en_US
dc.subFloriculture and Landscapingen_US
dc.themeNitrogen and Humic Acid on Growth, Yield and Quality of Essential Oil derived from herbage of marigold (Tagetes Patula L.) cv. Arka Parien_US
dc.these.typeM.Scen_US
dc.title“Effect of graded levels of Nitrogen and Humic Acid on Growth, Yield and Quality of Essential Oil derived from herbage of marigold (Tagetes Patula L.) cv. Arka Pari”en_US
dc.typeThesisen_US
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