Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 5 of 5

Full-Text Articles in Life Sciences

Characterization Of The Relationships Between Soybean Yield, Trifoliolate Leaf Chloride Concentration, And Cultivar Chloride Inclusion/Exclusion Rating, Dillon Cox Aug 2017

Characterization Of The Relationships Between Soybean Yield, Trifoliolate Leaf Chloride Concentration, And Cultivar Chloride Inclusion/Exclusion Rating, Dillon Cox

Graduate Theses and Dissertations

Chloride toxicity is recognized as yield limiting problem in soybean [Glycine max (L.) Merr.] production. Limited information is available to accurately diagnose and manage Cl toxicity. The only recommendation for Cl toxicity management is to plant an excluder cultivar, however the cultivar Cl sensitivity rating system (excluder, includer, and mixed) does not appear to capture the variability in cultivar Cl tolerance. The objectives of this research were to i) develop critical tissue-Cl concentrations in which yield loss occurs for excluder and includer cultivars and ii) investigate the variability in cultivar Cl ratings. A study was conducted across five site-years using ...


Salting Our Freshwater Lakes, Hilary A. Dugan, Sarah L. Bartlett, Samantha M. Burke, Jonathan P. Doubek, Flora Krivak-Tetley Apr 2017

Salting Our Freshwater Lakes, Hilary A. Dugan, Sarah L. Bartlett, Samantha M. Burke, Jonathan P. Doubek, Flora Krivak-Tetley

Dartmouth Scholarship

The highest densities of lakes on Earth are in north temperate ecosystems, where increasing urbanization and associated chloride runoff can salinize freshwaters and threaten lake water quality and the many ecosystem services lakes provide. However, the extent to which lake salinity may be changing at broad spatial scales remains unknown, leading us to first identify spatial patterns and then investigate the drivers of these patterns. Significant decadal trends in lake salinization were identified using a dataset of long-term chloride concentrations from 371 North American lakes. Landscape and climate metrics calculated for each site demonstrated that impervious land cover was a ...


Effects Of Increasing Chloride Concentrations On Growth Performance Of 15- To 25-Lb Nursery Pigs, D. Shawk, K. N. Nemechek, R. D. Goodband, J. C. Woodworth, M. D. Tokach, S. S. Dritz, J. M. Derouchey Jan 2017

Effects Of Increasing Chloride Concentrations On Growth Performance Of 15- To 25-Lb Nursery Pigs, D. Shawk, K. N. Nemechek, R. D. Goodband, J. C. Woodworth, M. D. Tokach, S. S. Dritz, J. M. Derouchey

Kansas Agricultural Experiment Station Research Reports

A total of 300 nursery pigs (initially 15.5 lb; Line 241 × 600; DNA, Columbus, NE) were used in a 21-d trial to determine effects of increasing dietary Cl on nursery pig growth performance. Upon entry to the nursery, pigs were allotted by BW and fed a common starter diet (0.33% Na and 0.76% Cl) for 7 d. On d 7 after weaning, considered d 0 in the trial, pens were assigned to 1 of 6 dietary treatments that were fed from d 0 to 14. Experimental treatments included a control diet containing 0.33% Na and 0 ...


Effects Of Increasing Salt Concentration On Growth Performance Of 25- To 67-Lb Nursery Pigs, D. Shawk, M. D. Tokach, J. C. Woodworth, R. D. Goodband, J. M. Derouchey, S. S. Dritz, A. B. Clark Jan 2017

Effects Of Increasing Salt Concentration On Growth Performance Of 25- To 67-Lb Nursery Pigs, D. Shawk, M. D. Tokach, J. C. Woodworth, R. D. Goodband, J. M. Derouchey, S. S. Dritz, A. B. Clark

Kansas Agricultural Experiment Station Research Reports

A total of 300 pigs (Line 241 × 600; DNA, Columbus, NE; initially 25.0 lb BW) was used in a 34-d growth trial to determine the effects of added dietary salt on the growth performance of nursery pigs weighing 25 to 67 lb. Upon entry to the nursery, pigs were allotted by BW and fed a phase 1 common starter diet (0.50% Na and 0.67% Cl) for 11 d and then a common phase 2 diet (0.35% Na and 0.59% Cl) from day 11 to 25 after weaning. At d 25 after weaning, considered d 0 ...


Effects Of Increasing Salt Concentrations On Growth Performance Of Pigs Weighing 60 To 140 Lb, D. Shawk, S. S. Dritz, M. D. Tokach, R. D. Goodband, J. C. Woodworth, J. M. Derouchey Jan 2017

Effects Of Increasing Salt Concentrations On Growth Performance Of Pigs Weighing 60 To 140 Lb, D. Shawk, S. S. Dritz, M. D. Tokach, R. D. Goodband, J. C. Woodworth, J. M. Derouchey

Kansas Agricultural Experiment Station Research Reports

A total of 1,188 pigs (PIC 359 × 1050; initial BW 59.8 lb) were used in a 44-d growth trial to determine the effects of added salt on the growth performance of pigs weighing approximately 60 to 140 lb in a commercial setting. Pens of pigs were blocked by BW and randomly assigned to 1 of 4 dietary treatments in a completely randomized block design with 27 pigs per pen and 11 pens per treatment. Dietary treatments were corn-soybean meal-based with 20% dried distillers grain with soluble containing either 0.10, 0.33, 0.55, or 0.75% of ...