The effect of urea fertilizer doses on the chemical characteristics of the Samurai-1, Samurai-2, and Pahat mutant sorghum (Sorghum bicolor L.) grain varieties
2021
Widodo, R. A. | Rosyida, V. T. | Kusumaningrum, A. | Nurhayati, R. | Kurniadi, M. | Human, S. | Wiyono. T. | Nurcholis, M. | Roeslan, M.
This research aimed to determine the influence of various doses of urea fertilizer on the chemical characteristics of mutant sorghum (Sorghum bicolor L.) grain varieties Samurai1, Samurai-2, and Pahat. A Fully Randomized Factorial Design was used by employing two factors and three replications. The three varieties of mutant sorghum grain served as the first factor while four doses (i.e., 0, 30, 60, and 90 kg/ha) of urea fertilizer administration served as the second factor. The parameters in the chemical test on the sorghum grain include ash, total protein, amylum, reducing sugar, dissolved protein, and tannin contents. The administration of urea fertilizer significantly influenced the increase in the ash, amylum, reducing sugar, and dissolved protein contents of Samurai-1 but did not significantly do so to such contents of Samurai-2 and Pahat. The urea fertilizer dose of 90 kg/ha gave the best results of the chemical composition of the three types of mutant sorghum grain. Chemically, mutant sorghum flour of the three varieties is qualified as a quality food ingredient with Samurai-1 being the best of the three varieties, in that case, possessing total protein content of 7.90%, amylum (or starch) content of 14.51%, dissolved protein content of 2.38%, reducing sugar content of 2.88%, and tannin content of 0.70%.
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