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Samuel Y.C. Essah, Jorge A. Delgado, Merlin Dillon, and Richard Sparks

analyze the effects of several cover crops on potato tuber yield, potato tuber size distribution, and tuber quality, as measured by tuber external and internal defects. Materials and methods The present study was conducted at the San Luis Valley in south

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David Douches, Walter Pett, Diedrich Visser, Joseph Coombs, Kelly Zarka, Kimberly Felcher, Gurling Bothma, Johan Brink, Muffy Koch, and Hector Quemada

was graded into four size classes: A = 113 to 285 g, B = <113 g, oversize = >285 g, and pickouts = unmarketable. Tubers >8.3 cm in diameter or >285 g in weight were scored for incidence of external and internal defects, and samples of A-sized tubers

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contributed to significantly higher yields, greater tuber size, and improved tuber quality (fewer external defects). Positive results from a sorghum-sudangrass summer cover crop showed that under commercial operations, summer cover crops with limited

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Alex Goke, Sara Serra, and Stefano Musacchi

external position of the canopy based on light interception to capture a broad range of fruit materials that characterize those large canopies ( Rudell et al., 2017 ). Fruit intercepting more than 70% light were considered external, less than 30% were

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Kathleen G. Haynes, Beverly A. Clevidence, David Rao, Bryan T. Vinyard, and J. Marion White

and 23 May 2005 in Florida, and 14 Sept. 2004 and 8 Sept. 2005 in Maine. Three medium-sized tubers, free of external defects or blemishes, were selected and shipped to Beltsville, MD, where they were held at 4 °C with 95% relative humidity storage

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Kathleen G. Haynes, Beverly A. Clevidence, David Rao, and Bryan T. Vinyard

field. Tubers from 13 to 14 randomly selected clones per family were harvested into paper bags from each plot on 11 Sept. 2008 and 26 Aug. 2009. Four medium-sized tubers, free of external defects or blemishes, were selected and shipped to Beltsville, MD

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Valtcho D. Zheljazkov, Charles L. Cantrell, M. Wayne Ebelhar, Dennis E. Rowe, and Christine Coker

sulfur fertilizers increase potato yield and reduce tuber defects Agron. J. 97 599 603 Rehm, G.W. 2005 Sulfur management for corn growth with conservation tillage Soil Sci. Soc. Amer. J. 69 709 717

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Audrey Darrigues, Jack Hall, Esther van der Knaap, David M. Francis, Nancy Dujmovic, and Simon Gray

-line fruit grading according to their external quality using machine vision Biosystems Eng. 83 397 404 Li, Q. Wang, M. Gu, W. 2002 Computer vision based system for apple surface defect detection Computers

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Scovia Adikini, Settumba B. Mukasa, Robert O.M. Mwanga, and Richard W. Gibson

, whether they too can revert to a healthy status. In some US sweetpotato cultivars such as Beauregard, when infected singly with the russet crack strain of SPFMV, the roots show external cracking and internal “corkiness,” and when planted, the virus

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Natalia Falagán, Francisco Artés, Perla A. Gómez, Francisco Artés-Hernández, Alejandro Pérez-Pastor, Jose M. de la Rosa, and Encarna Aguayo

external defects or bruises. Sound nectarine fruit were located into boxes and stored at 0 ± 0.5 °C and 90% to 95% RH in air for 10 d. Then, a simulated retail sale period of 3 d at 15 °C and 70% to 75% RH in air was carried out. For each sampling day (0