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biochmical identification of some soypean cultivars
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Abstract: Two field experiments were carried out in each of Agric.Expt. Farm, Fac. Agric., Ain Shams Univ. at Shoubra EL-Kheima, Kaluobia Governorate and Giza Agric. Res. Station, Agric. Res. Center, Giza Governorate in 1995 and 1996 growing season. The experiments were designed to evaluate biochemical differentiation test of seeds of eight soybean cultivars. Sowing soybean after cereal crop drastically decreased seed protein content in comparison to those grown after legume crop. Giza 21 was slightly responded and H29 did not respond to the kind of preceding crop. It mean that nitrogen fertilizer applied to the experimental soil was the optimum for the above two cultivars. For each of soybean genotypes, except Crawford, it was a negative relationship between crude protein and crude oil contents. Also, the increase in crude protein was in two folds higher the decrease in oil content. Carbohydrate fractions revealed that seeds of Giza 21 and Giza 35 characterized by significant lowest concentrations of total tri and tetrasaccharides. These low concentrations are effective to increase soybean meal quality. Seeds of Dr101 cultivar had the lowest oil iodine value indicating its lowest concentration in polyunsaturated fatty acids and subsequently the highest the keeping quality of the prepared edible oils. High significant peroxidase activity was for soybean seeds cultivars Giza 82, Dr101 and H29 indicating a favorable effect on seed quality and germination percentage. All studied cultivars are characterized by low total vicine content. Whereas, Giza 35 and Giza 82 cultivars had the minimum concentration of trypsin inhibitor activity indicating their low pancreatic hypertrophy, high nutritional value and protein digestibility of their meals in human. Gel electrophoresis gave consistent results between different sources of soybean. The protein identification indicate that the pattern was uniform where each genotype was not affected by lot differences, year produced or location grown. The soybean cultivars were different in their banding and each one is characterized by certain proteins with different molecular weight. These findings indicate clearly that electrophoretic analysis is an important tool for the identification of soybean cultivars.
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| Publication year |
1998
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| Pages |
159-171
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| Availability location |
معهد بحوث المحاصيل الحقلية- 9شارع الجامعة- الجيزة
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| Availability number |
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| Organization Name |
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| serial title |
Annals Agric. Sci.
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| ISSN |
0570-1783
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| Author(s) from ARC |
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| Agris Categories |
Agricultural research
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AGROVOC
TERMS |
Varieties.
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| Publication Type |
Journal
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