@article{villavicencio_blankenship_yencho_thomas_raper_2007, title={Temperature effect on skin adhesion, cell wall enzyme activity, lignin content, anthocyanins, growth parameters, and periderm histochemistry of sweetpotato}, volume={132}, number={5}, journal={Journal of the American Society for Horticultural Science}, author={Villavicencio, L. E. and Blankenship, S. M. and Yencho, G. C. and Thomas, J. F. and Raper, C. D.}, year={2007}, pages={729–738} }
 @article{villavicencio_blankenship_yencho_2004, title={Skin adhesion in sweetpotato and its lack of relationship to polygalacturonase and pectinmethylesterase during storage}, volume={32}, ISSN={["1873-2356"]}, DOI={10.1016/j.postharvbio.2003.10.007}, abstractNote={Sweetpotatoes have a tendency to experience epidermal loss during harvest and postharvest handling. Epidermal detachment from underlying periderm (skin loss) causes weight loss, shriveling of the root surface, increased susceptibility to pathogen attack and inferior appearance. ‘Beauregard’ is very prone to skin loss, while ‘Jewel’ is thought to have stronger skin. Our objective was to determine the variation in skin strength in relation to cell wall enzyme activity and to determine possible correlations among these variables that could explain skin loss on the basis of enzyme activity during storage of the roots. Skin adhesion, polygalacturonase (PG) and pectinmethylesterase (PME) activity were measured during storage of ‘Beauregard’ and ‘Jewel’ roots in 1999 and again in 2000. Skin adhesion varied among years and cultivars. Overall, roots of ‘Beauregard’ were more susceptible than ‘Jewel’ to skin loss after several weeks of storage. Roots of ‘Jewel’ had lower skin adhesion at harvest, which increased after several weeks of storage and decreased again at the end of the storage period. Enzyme activity exhibited a random pattern during the storage period, and skin adhesion did not correlate with PG or PME activity.}, number={2}, journal={POSTHARVEST BIOLOGY AND TECHNOLOGY}, publisher={Elsevier BV}, author={Villavicencio, LE and Blankenship, SM and Yencho, GC}, year={2004}, month={May}, pages={183–192} }
 @article{villavicencio_blankenship_sanders_swallow_2001, title={Ethylene and carbon dioxide concentrations in attached fruits of pepper cultivars during ripening}, volume={91}, ISSN={["0304-4238"]}, DOI={10.1016/S0304-4238(01)00249-7}, abstractNote={Ethylene and CO2 concentrations in peppers (Capsicum annuum L.) were studied throughout maturity in three pepper cultivars (‘Camelot’, ‘King Arthur’ and ‘Tabasco’) under both greenhouse and field conditions. Air samples were withdrawn from the locular cavity of attached fruits under ambient conditions to determine ethylene and CO2 concentrations by gas chromatography. Both variables differed with the stage of maturity for all cultivars. Ethylene concentration ranged from 0 to 0.244 μl l−1, and CO2 concentration ranged from 6.05 to 206.5 mg l−1. Concentration of both gases increased in ripening fruits of ‘Camelot’ and ‘King Arthur’. In ‘Tabasco’ fruits grown under greenhouse conditions, CO2 concentration increased once fruits started developing red coloration. However, this peak was absent in ‘Tabasco’ fruits grown in the field. In general, all cultivars exhibited characteristics intermediate between climacteric and non-climacteric fruits.}, number={1-2}, journal={SCIENTIA HORTICULTURAE}, author={Villavicencio, LE and Blankenship, SM and Sanders, DC and Swallow, WH}, year={2001}, month={Nov}, pages={17–24} }