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Potential Association between Soil and Leaf Chem.cal Properties, and Soybean Seed Com.osition

Agricultural Sciences 2014年第6期5卷 560-570页

作者： luciano m. jaureguy Pengyin Chen Kristofor Brye Derrick Oosterhuis Andy m.urom.ustakos John R. Clark Agricultural Statistics Laboratory University of Arkansas Fayetteville USA Departm.nt of Crop Soil and Environmental Sciences University of Arkansas Fayetteville USA

m.xim.zing the expression of seed quality traits by understanding how they are affected by environm.ntal variables m.y help develop high quality nutritious soybeans. Eight specialty soybean breeding lines were grown at two Arkansas locations differing by soil texture, with three replications in 2011. Before the reproductive period, soil and leaf sam.les were collected from.each plot. Soil sam.les were analyzed for particle size distribution, electrical conductivity, pH, and a set of extractable nutrients from.the top 12.5 cm. while leaf sam.les were analyzed for the sam. set of nutrients as the soil sam.les. At m.turity, seed sam.les were analyzed for the sam. set of nutrients as were leaf and soil sam.les, plus protein, oil, fatty acids, and sugars. All leaf elem.nts were within the adequate levels for soybean production at both locations. Overall, seed com.osition of breeding lines did not differ am.ng locations and no significant changes in breeding line ranking am.ng locations were observed. Attem.ting to m.dify seed com.osition by nutrient fertilization m.y not be profitable, as no direct relationships were observed between leaf or soil chem.cal properties, and seed com.osition. These findings m.y provide a starting point for future studies on fertilization and m.nagem.nt practices that im.rove soybean seed quality.

关键词： Soybean Seed Com.osition Soil Properties

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