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KMID : 0903519760190010031
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1976 Volume.19 No. 1 p.31 ~ p.35
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Varietal Difference in Protein , Carbohydrate , P , K , Ca and Mg Content of Naked Barley
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Abstract
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Fifteen naked barley cultivars including radiation breeding lines from three places were analized for crude protein, carbohydrates, P, K, Ca, Mg and tested protein by dye binding method and biuret method. Their content and simple correlation analyses among them were as follows.
1. Protein content was 7.67 for average (max. 10.3 in Baegdong, min. 6.0 in Bangju) that was lower than in milled barley and had significant (at p=0.01) correlation with dye binding capacity (r=0.769) and biuret absorbance (r=0.616).
2. Protein content also had significant correlation with P₂O_5(r=0.607, p=0.01) and with MgO(r=0.498, p=0.05).
3. There was great difference in protein content among radiation breeding lines(max. 8.40, min. 6.75%).
4. Naked barley appeared to be lower in carbohydrate content but higher in crude ash to compare with milled barley.
5. There was significant correlation(r=0.560, p=0.01) between Ca and K, indicating competition in uptake or translocation to grain.
6. Carbohydrate content showed the highest negative correlation with protein content but it was not significant.
7. The low protein variety (Bangju) showed higher yield than the high protein one (Baegdong) both with (16%) and without (48%) fertilizers.
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