@article{schultheis_george_pecota_thompson_yencho_2016, title={Potential yields of industrial sweetpotatoes using cut seed pieces planted at various dates}, volume={1118}, ISSN={0567-7572 2406-6168}, url={http://dx.doi.org/10.17660/ActaHortic.2016.1118.12}, DOI={10.17660/actahortic.2016.1118.12}, number={1118}, journal={Acta Horticulturae}, publisher={International Society for Horticultural Science (ISHS)}, author={Schultheis, J.R. and George, N.A. and Pecota, K.V. and Thompson, W.B. and Yencho, G.C.}, year={2016}, month={May}, pages={79–88} } @article{george_pecota_yencho_2015, title={The carbohydrate yield of sweetpotato (Ipomoea batatas) grown from slips and root pieces in North Carolina}, volume={50}, number={11}, journal={HortScience}, author={George, N. A. and Pecota, K. V. and Yencho, G. C.}, year={2015}, pages={1610–1617} } @article{george_shankle_main_pecota_arellano_yencho_2014, title={Sweetpotato grown from root pieces displays a significant genotype x environment interaction and yield instability}, volume={49}, number={8}, journal={HortScience}, author={George, N. A. and Shankle, M. and Main, J. and Pecota, K. V. and Arellano, C. and Yencho, G. C.}, year={2014}, pages={984–990} } @misc{george_pecota_bowen_schultheis_yencho_2011, title={Root Piece Planting in Sweetpotato-A Synthesis of Previous Research and Directions for the Future}, volume={21}, ISSN={["1063-0198"]}, DOI={10.21273/horttech.21.6.703}, abstractNote={Sweetpotato (Ipomoea batatas) is traditionally grown for fresh consumption, particularly in developed nations, but it is increasingly being used for alternative markets such as processed foods and industrial products. Sweetpotato is well suited for these end uses but its utilization is limited due to high production costs. These costs are primarily the result of high labor inputs. As a vegetatively propagated crop, sweetpotato is typically planted using unrooted plant cuttings, or “slips,” which requires hand labor at several stages. Consequently, planting costs can be as high as 20% of total production costs. As an alternative to slips, sweetpotato can be established using root pieces, similar to the seed piece system used for potato (Solanum tuberosum). This system can be readily mechanized and therefore has the potential to reduce labor demands. Root piece planting has been investigated several times since the 1940s but is not reported to be in large-scale commercial use anywhere in the world. In this work, we review the research literature relating to root piece planting in sweetpotato. This literature demonstrates that it is possible for sweetpotato root pieces to produce yields comparable to slips, but that in most cases yields from root pieces are usually lower than from slips. We conclude that given suitable cultural management and appropriate varieties, it may be possible to successfully produce sweetpotato using root pieces. More work is necessary to develop root piece planting as a viable alternative to slips in sweetpotato production. This work should include the selection and breeding of adapted varieties, evaluation of the economics of sweetpotato production using root pieces, development of planting equipment suited to sweetpotato root pieces, and examination of chemical treatments to improve success of root piece planting.}, number={6}, journal={HORTTECHNOLOGY}, author={George, Nicholas A. and Pecota, Kenneth V. and Bowen, Blake D. and Schultheis, Jonathan K. and Yencho, G. Craig}, year={2011}, month={Dec}, pages={703–711} } @article{george_yang_wang_sharma-shivappa_tungate_2010, title={Suitability of Canola Residue for Cellulosic Ethanol Production}, volume={24}, ISSN={["1520-5029"]}, DOI={10.1021/ef1002155}, abstractNote={The acreage of winter canola in the Southeastern United States is presently limited but is expected to increase in the future as demand for biodiesel grows. The residue production of canola is known to be relatively high in comparison to other grain crops. Only the seed of canola is currently harvested and utilized, but if canola is to be grown more widely the crop residue could potentially be used for biofuel production. This proof of concept study investigated the value of canola crop residue as a feedstock for cellulosic ethanol production. The mean dry yield of residue for canola was found to be approximately 9 Mg/ha, which is higher than for other common winter crops produced in the Southeast. Cellulosic ethanol production from the residue was investigated through acid (H2SO4) and alkali (NaOH) pretreatment followed by enzymatic hydrolysis with cellulase and cellobiase and hexose fermentation with Saccharomyces cerevisiae. The ethanol yield from the biomass was relatively low, at around 95 L per dry ...}, number={8}, journal={ENERGY & FUELS}, author={George, Nicholas and Yang, Ying and Wang, Ziyu and Sharma-Shivappa, Ratna and Tungate, Kim}, year={2010}, month={Aug}, pages={4454–4458} } @article{george_2009, title={Does karrikinolide improve the germination and seedling vigour of switchgrass?}, volume={37}, ISSN={["0251-0952"]}, DOI={10.15258/sst.2009.37.1.30}, number={1}, journal={SEED SCIENCE AND TECHNOLOGY}, author={George, N.}, year={2009}, pages={251–254} }