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Variations of fatty acids levels in young shoots of clonal tea with location of production and nitrogenous fertilizer rates in the Kenya highlands

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dc.contributor.author Okal, Amos W.
dc.contributor.author Owuor, Philip O.
dc.contributor.author Kamau, David M.
dc.contributor.author Mang’uro, Lawrance O.A.
dc.date.accessioned 2020-03-12T20:13:36Z
dc.date.available 2020-03-12T20:13:36Z
dc.date.issued 2012
dc.identifier.citation Okal, A.W.; Owuor, P.O.; Kamau, D.M.; Mang’uro, L.O.A. (2012). Variations of fatty acids levels in young shoots of clonal tea with location of production and nitrogenous fertilizer rates in the Kenya highlands. Journal of Agricultural Science and Technology, 14(6), 1543-1554 en_US
dc.identifier.uri https://repository.maseno.ac.ke/handle/123456789/1486
dc.description.abstract Tea leaves contain unsaturated fatty acids, key precursors of volatile compounds contributing to tea aroma quality. Tea is cultivated in areas with diverse environmental conditions. Nitrogenous fertilizers influence tea yields and quality. A previous single site study demonstrated that increasing nitrogenous fertilizer rates raised fatty acid levels. However it is not known if the magnitudes and patterns of the responses are replicated in different locations due to variations in growth factors. Nonetheless, there is a single fertilizer rate recommendation in all tea growing locations in Kenya. This study assessed possible variations in patterns and magnitudes of fatty acids in a single cultivar grown under similar nitrogenous fertilizer rates in different locations. Trials were conducted in five locations using clone BBK 35, receiving varying nitrogenous fertilizer rates. Fatty acids in two leaves and a bud were quantified as methyl esters. The levels varied (P≤ 0.05) with locations and increased (P≤ 0.05) with nitrogenous fertilizer rates. The rates of increase differed with locations leading to significant (P≤ 0.05) interaction effects. Thus, similar fertilizer rates in different locations result in different fatty acid levels, explaining differences in tea aroma quality from different locations even with the same agronomic inputs. The results demonstrate the need to develop region-specific agronomic inputs for the production of same tea quality en_US
dc.description.sponsorship National Council for Science and Technology en_US
dc.language.iso en en_US
dc.publisher Journal of Agricultural Science and Technology en_US
dc.subject Camellia sinensis, Fatty acids, Location of production, Nitrogenous fertilizer application rates, Tea en_US
dc.title Variations of fatty acids levels in young shoots of clonal tea with location of production and nitrogenous fertilizer rates in the Kenya highlands en_US
dc.type Article en_US


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