Study of low phytate/low stachyose soybean genotypes in Arkansas





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Published on Dec 7, 2011

Luciano M. Jaureguy , Doctoral student with the school of Crop, Soil, and Environmental Sciences at the University of Arkansas in Fayetteville, Arkansas, shares a little bit with us about his research that he is doing, "Selection and evaluation of low phytate/low stachyose soybean genotypes in Arkansas".

Stachyose and other seed polysaccharides are involved in seed desiccation resistance and transport of sugar in the phloem. Phytic acid is the form in which most (70%) of the phosphorous is stored in the soybean seed. Stachyose and phytic acid are not digested by monogastric animals, and thus represent an obstacle for an efficient utilization of soybean meal in animal feed. Stachyose is not broken down to simple sugars, so its nutritional value (metabolizable energy) is limited. Similarly, undigested phytate increases the concentration of phosphorous in manure, which, if used in land fertilization, may result in eutrophication of surface and ground water. Therefore, screening for genotypes with improved seed composition is crucial for developing environmentally friendly soybeans with increased nutritional value.

For more information on the research at the University of Arkansas Department of Crop, Soil, and Enviromental Sciences, or to get further information regarding "Your Arkansas Soybean Podcast" series please go to: www.uaex.edu

This podcast was produced by Ross Macartney and the University of Arkansas Division of Agriculture, and was funded impart by the Arkansas Soybean Promotion Board.

Thank you for watching. If you found this podcast informative please considering sharing our link with your social media contacts. Thank you.

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