Chemical and elemental composition of big bluestem as affected by ecotype and planting location along the precipitation gradient of the Great Plains

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dc.contributor.author Zhang, Ke
dc.contributor.author Johnson, Loretta
dc.contributor.author Nelson, Richard
dc.contributor.author Yuan, Wenqiao
dc.contributor.author Pei, Zhijian J.
dc.contributor.author Wang, Donghai
dc.date.accessioned 2012-10-09T16:31:41Z
dc.date.available 2012-10-09T16:31:41Z
dc.date.issued 2012-10-09
dc.identifier.uri http://hdl.handle.net/2097/14840
dc.description.abstract Three big bluestem ecotypes from central Kansas (Cedar Bluffs and Webster populations), eastern Kansas (Konza and Top of the World populations), and Illinois (12Mile and Fults populations), as well as the Kaw cultivar, were harvested from four reciprocal garden planting locations (Colby, Hays, and Manhattan, KS; and Carbondale, IL) and evaluated for their chemical (glucan, xylan, arabinan, lignin and ash) and elemental (carbon, oxygen, hydrogen, nitrogen and sulfur) compositions. The objective of this research was to study the effects of ecotype and planting location on the chemical and elemental compositions of big bluestem along the Great Plains precipitation gradient (∼1200 to 400 mm mean annual precipitation). All the populations revealed a large variation in cellulose (31.8–36.5%), hemicellulose (24.96–29.74%), lignin (14.4–18.0%), carbon (47.3–51.3%), and nitrogen (4.91–6.44%). Planting location had significant effects on both chemical and elemental compositions of big bluestem. Ecotype had significant effects on glucan, xylan, lignin, and ash contents as well as on carbon, oxygen, and hydrogen elemental fractions. In addition, the interaction between ecotype and planting location had significant effects on glucan, lignin, and hydrogen. Planting location had a greater effect on chemical and elemental compositions than the ecotype and interaction between location and ecotype. The total sugar content of the big bluestem (regardless of ecotype) increased as the Great Plains precipitation gradient increased from west to east. Annual precipitation, growing degree days and potential evapotranspiration in 2010 explained up to 97%, 88% and 80% of the variation in compositions, respectively en_US
dc.relation.uri http://www.sciencedirect.com/science/article/pii/S0926669012001549 en_US
dc.subject Big bluestem en_US
dc.subject Chemical composition en_US
dc.subject Elemental composition en_US
dc.subject Ecotype en_US
dc.subject Reciprocal common garden en_US
dc.title Chemical and elemental composition of big bluestem as affected by ecotype and planting location along the precipitation gradient of the Great Plains en_US
dc.type Article (author version) en_US
dc.date.published 2012 en_US
dc.citation.doi doi:10.1016/j.indcrop.2012.03.016 en_US
dc.citation.epage 218 en_US
dc.citation.jtitle Industrial Crops and Products en_US
dc.citation.spage 210 en_US
dc.citation.volume 40 en_US
dc.contributor.authoreid dwang en_US
dc.contributor.authoreid zhangke en_US
dc.contributor.authoreid zpei en_US

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