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Ricardo Hernández and Chieri Kubota

composition of Cucumis sativus grown under different combinations of red and blue light J. Expt. Bot. 61 3107 3117 Islam, M.A. Kuwar, G. Clarke, J.L. Blystad, D.R. Gislerod, H.R. Olsen, J.E. Torre, S. 2012 Artificial light from light emitting diodes (LEDs

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D.J. Vakalounakis and E. Klironomou

No linkage was detected in cucumber (Cucumis sativus L.) between the Cuc locus for scab resistance and the following eight morphological loci: heart leaf (hl), numerous fruit spines (ns), small fruit spines (ss), tuberculate fruit (Tu), uniform immature fruit color (u), dull fruit epidermis (D), gynoecious sex expression (F), and delayed flowering (df). All nine traits were monogenically inherited.

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Youbin Zheng, Linping Wang, Diane Feliciano Cayanan, and Mike Dixon

nutrient solution. Materials and Methods Plant materials and culture. Cucumis sativus L. (cucumber, cv. LOGICA F1) seeds were sown in rockwool cubes on 20 Feb. 2003 in one of the research greenhouses at the University of Guelph (Guelph

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Ana I. López-Sesé and Jack Staub

Three U.S.-adapted Cucumis sativus var. sativus L. lines and one C. sativus var. hardwickii (R.) Alef.-derived line were crossed in a half-diallel design to determine their combining ability for several yield-related traits (yield components). Six F1 progenies were evaluated in a randomized complete block design with eight replications in 1999 and 2000 for fruit number and length/diameter ratio (L:D), lateral branch number, number of female flowering nodes, and days to anthesis. Combining ability was significantly influenced (p < 0.05) by year for most of the horticultural traits examined. General combining ability (GCA) was significant for all traits in each year. Specific combining ability (SCA) was significant in magnitude and direction for only fruit number and days to anthesis. Data indicate that the C. sativus var. hardwickii-derived inbred line WI 5551 possessed SCA for yield component traits, and thus maybe useful for improving fruit yield in commercial cucumber.

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Yuqi Li and Neil S. Mattson

, A. Al-Helal, I. Ibrahim, A. Abdel-Ghany, A. Al-Zaharani, S. Ashour, T. 2016 The effects of plastic greenhouse covering on cucumber ( Cucumis sativus L.) growth Ecol. Eng. 87 305 312 Ao, Y. Sun, M. Li, Y. 2008 Effect of organic substrates on

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Xun Li, Wenying Chu, Jinlong Dong, and Zengqiang Duan

the root exudates of cucumber was mainly the result of the increase of root mass. Literature Cited Agüera, E. Ruano, D. Cabello, P. de la Haba, P. 2006 Impact of atmospheric CO 2 on growth, photosynthesis and nitrogen metabolism in cucumber ( Cucumis

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Gabriele Gusmini and Todd C. Wehner

Yield data for the major cucurbit crops in the United States have been collected and summarized. Yield trends are presented for cucumber (Cucumis sativus; processing and fresh-market), melon (Cucumis melo; muskmelon and honeydew), and watermelon (Citrullus lanatus) for the period 1951–2005. Data have been obtained from the U.S. Department of Agriculture, as originally reported by six of its units: Agricultural Marketing Service, Agricultural Research Service, Bureau of Agricultural Economics, Economic Statistics Service, National Agricultural Statistics Service, and Statistical Reporting Service. For all crops yields have been increasing over time, except for processing cucumber, for which yields seem to have reached a plateau by the end of the 1990s.

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Charlie Garcia and Roberto G. Lopez

more than 265,000 t of produce grown under protection in 2014, high-wire fruiting vine crops such as cucumber ( Cucumis sativus ), pepper ( Capsicum spp.), and tomato ( Solanum lycopersicum ) accounted for 14%, 1%, and 37%, respectively ( USDA, 2015

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S. Alan Walters, Todd C. Wehner, and Kenneth R. Barkel

Cucumber (Cucumis sativus L.) and horned cucumber (C. metuliferus Naud.) germplasm were evaluated for their resistance to root-knot nematodes (Meloidogyne spp.). All 24 C. metuliferus cultigens evaluated were resistant to all root-knot nematodes tested-M. incognita (Kofoid and White) Chitwood race 3, M. arenaria (Neal) Chitwood race 2, and M. hapla Chitwood. All 884 C. sativus cultigens (cultivars, breeding lines, and plant introduction accessions) tested were resistant to M. hapla and few to M. incognita race 3. Only 50 of 884 C. sativus cultigens evaluated were somewhat resistant to M. arenaria race 2 and M. incognita race 3. A retest of the most resistant C. sativus cultigens revealed that LJ 90430 [an accession of C. sativus var. hardwickii (R.) Alef.] and `Mincu' were the only cultigens that were moderately resistant to M. arenaria race 2. LJ 90430 was the only cultigen, besides the two retested C. metuliferus cultigens, that was resistant to M. javanica (Treub) Chitwood. All C. sativus cultigens retested, including LJ 90430, were highly susceptible to M. incognita races 1 and 3. The two C. metuliferus cultigens retested were highly resistant to all root-knot nematodes tested-M. arenaria race 2, M. incognita races 1 and 3, and M. javanica.

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Katharine B. Perry and Todd C. Wehner

A heat unit model developed in a previous study was compared to the standard method (average number of days to harvest) for ability to predict harvest date in cucumber (Cucumis sativus L.). Processing and fresh-market cucumbers were evaluated in 3 years (1984 through 1986), three seasons (spring, summer, and fall), and three North Carolina locations. The model predicted harvest date significantly better than the standard method for processing, but not for fresh-market cucumbers.