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Gioia D. Massa, Hyeon-Hye Kim, Raymond M. Wheeler and Cary A. Mitchell

total irradiation, cowpea plants developed abnormal intumescence or edema on older leaves ( Fig. 3A ). This tumor-like growth did not form under higher blue light levels. ‘Triton’ pepper plants grown with either intracanopy or overhead R + B LED lighting

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Tomomi Eguchi, Ricardo Hernández and Chieri Kubota

Intumescence injury, also known as edema or oedema is a nonpathogenic physiological disorder characterized visually by abnormal, blister- or callus-like tumor growths that predominantly develop on the surface of leaves and sometimes on petioles and

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Michael S. Stanghellini, Jonathan R. Schultheis and Gerald J. Holmes

In 1998 and 1999, a total of 27 large-fruited and 15 miniature-fruited pumpkin (Cucurbita pepo) cultivars were evaluated for adaptation to eastern North Carolina grow- ing conditions. Test categories were yield (fruit number and weight); fruit characteristics (shape, rind and stem attributes); and susceptibility to edema (wart-like growths on fruit exterior), foliar diseases, preharvest and postharvest fruit decay, and viruses. Yields of large pumpkins ranged from over 3,200 fruit/acre (7,907 fruit/ha) for `SVT 4613367', `Autumn Gold', and `Gold Standard' to less than 1,000 fruit/acre (2,471 fruit/ha) for `Gold Rush' and `Progold 200'. For miniature pumpkins, over 33,000 fruit/acre (81,542 fruit/ha) were produced by `Touch of Autumn', `Lil' Pump- ke-mon', and `HMX 5682', whereas `Mystic' and `Progold 100' produced less than 7,000 fruit/acre (17,297 fruit/ha). `Gold Rush', `Howden', and `Progold 510' (large), and `EXT 4612297', `Lil' Goblin', and `Lil' Ironsides' (miniature) appeared the most susceptible to foliar diseases. Preharvest fruit decay ranged from 0% for `Howden' and `EXT 4612297' to over 20% for `Lil' Goblin', `Jumping Jack', `Peek-A-Boo', and `Tom Fox'. Virus incidence on fruit and foliage was low on virus-resistant cultivars ('SVT 4613367' and `EXT 4612297'), and ranged from 4% to 74% for nontransgenic cultivars. Virus incidence and/or severity on foliage and fruit were not related. `Early Autumn' (large) and `Touch of Autumn' (miniature) were the most prone to edema. `Aspen' and `Magic Lantern' (large) and `Baby Pam', `Lil' Goblin', and `Spooktacular' (miniature) were the most susceptible to postharvest fruit decay. Fruit characteristics are discussed in relation to marketability and possible consumer appeal to pumpkins.

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Heidi Marie Wollaeger and Erik S. Runkle

( Hoenecke et al., 1992 ). In addition, pepper plants ( Capsicum annuum ) grown under sole R light or less than 10% to 15% B light developed edema, a physiological disorder ( Massa et al., 2008 ). The emission of narrow-waveband light by LEDs provides the

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Benard Yada, Phinehas Tukamuhabwa, Bramwell Wanjala, Dong-Jin Kim, Robert A. Skilton, Agnes Alajo and Robert O.M. Mwanga

Genet. Resources Crop Evol. 50 429 437 Gichuru, V. Aritua, V. Lubega, G.W. Edema, R. Adipala, E. Rubaihayo, P.R. 2006 A preliminary analysis of diversity among East African sweetpotato

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Heather L. Papinchak, E. Jay Holcomb, Teodora Orendovici Best and Dennis R. Decoteau

, 2006 ). Major toxic effects of ozone in humans include alterations in pulmonary function in addition to cellular and biochemical endpoints ( Wright and Welbourn, 2002 ). Exposure to ozone also may result in pulmonary edema, hemorrhage, inflammation, and

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Wagner A. Vendrame, Aaron J. Palmateer, Ania Pinares, Kimberly A. Moore and Lawrence E. Datnoff

effects of Si fertilization on reducing abiotic (i.e., temperature, light, and edema) and biotic (i.e., plant disease) stresses are warranted because of the potential positive impact for the orchid industry. Literature cited Adatia, M.H. Besford, R.T. 1986

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Joshua K. Craver, Chad T. Miller, Kimberly A. Williams and Daniel L. Boyle

plants exhibited symptoms when relative humidity levels were low and water status within the tissue was normal ( Lang and Tibbitts, 1983 ). Morrow and Tibbitts (1988) added to this differentiation by stating that “edema” has traditionally been found to

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Wesley C. Randall and Roberto G. Lopez

and Runkle, 2013 ). Previous studies have reported that certain crops grown under ultraviolet radiation, blue light, or far-red light deficient environments or red dominant environments have developed leaf disorders such as edema or intumescence

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Joshua K. Craver, Chad T. Miller, Kimberly A. Williams and Nora M. Bello

. Scherm, H. 2004 Photosynthesis of blueberry leaves as affected by septoria leaf spot and abiotic leaf damage Plant Dis. 88 397 401 Rud, N.A. 2009 Environmental factors influencing the physiological disorders of edema on ivy geranium ( Pelargonium peltatum