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 Plant Stress and Germplasm Development Research: Lubbock, TX
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ARS Home Plains Area Lubbock, Texas Cropping Systems Research Laboratory Plant Stress and Germplasm Development Research Research Publications at this Location





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Title:   Author  item
                                            Mahan, Jamesitem
                                            Gitz, Dennisitem
                                            Payton, Paxton
  Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 11/12/2006
                                    Publication  Date: 11/16/2006
                                    Citation: Mahan, J.R., Gitz, D.C., Payton, P.R. 2006. Validation of a metabolic cotton seedling emergence model[abstract]. ASA-CSSA-SSSA Annual Meeting. Indianapolis, Indiana. November 12-16, 2006.Interpretive Summary:
                                Technical Abstract: A seedling emergence model based on thermal dependence of enzyme activity in germinating cotton was developed. The model was validated under both laboratory and field conditions with several cotton lines under diverse temperature regimes. Four commercial lines were planted on four dates in Lubbock TX in order to provide different thermal environments for germination. Differences were observed in time required for germination with some lines exhibiting enhanced germination rates. Analysis of antioxidant enzymes indicated differences in antioxidant activity and oxidative stress among lines. The emergence times predicted by the mechanistic model were comparable to those derived from a commonly used empirically derived model.


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