vol. 14, nr. 1 (2009)
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Amino-acid composition of proteins in narrow-leaf lupine in relation to variety type and sowing date |
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Anna Kotlarz1, Janusz Podleśny2, Wacław Strobel3 |
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1 Department of Animal Nutrition and Food, West Pomeranian University of Technology, ul. Doktora ul. Judyma 2, 71-460 Szczecin |
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2 Institute of Fertilisation and Soil Science, National Research Institute ul. Czartoryskich 8, 24-100 Puławy |
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3 Institute of Agrophysics PAS, ul. Doświadczalna 4, 20-290 Lublin |
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vol. 14 (2009), nr. 1,
pp. 115-123
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abstract:
The aim of the presented studies was to evaluate the effect of cultivar and various sowing dates on the quantity and quality of protein in the seeds of narrow-leaf lupine. We used seeds obtained from plot experiments carried out during 2005. The experiment was carried out in a split-plot / split-block design. The primary treatment was represented by cultivars of thermo-neutral and non-thermoneutral lupine, while sowing dates (I – very early; II – two weeks following the first date; III – four weeks following the first date) were the secondary treatments. Using a near-infrared spectrometer, we measured the content of total protein and its amino-acid composition in lupine seed. The results were processed statistically by means of two-factorial ANOVA (cultivar x sowing date). Significant (P ≤ 0.01 or P ≤ 0.05) differences were found between the cultivars in total protein content and protein amino-acid composition (in g•100 g-1 of protein). Moreover, a significant (P ≤ 0.05) effect of sowing date on total protein content in dry matter of the seeds was found.
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keywords:
narrow-leaf lupine, cultivar, sowing dates, amino-acids
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original in:
Polish
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