Influence of days after flowering and cultural environments on changes of alpha-acid content in hops (Humulus lupulus L.)
1987
Park, K.Y. | Lee, D.W. (Kyonggi Provincial Rural Development Administration, Hwasong (Korea R.)) | Min, I.K. (Doosan Farms Co., Hoeongseong (Korea R.))
The objective was to obtain the basic information for the changes of the alpha-acid content according to days after flowering, altitude and weather of Hoeongseong, Korea. The alpha-acid of hops reached the highest content in sixty one days after flowering, and the optimum time for cone picking was noted as August 11-15th. The altitude for the highest alpha-acid content was 190-260m of Hoeongseong. The year-to-year variations in the alpha-acid content of hops were higher than the altitude variations. The higher alpha-acid content was associated with a higher temperature and more amo1129unts of sunshine in late July. Alpha-acid content and yield had a significant positive correla
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