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Elsa S. Sánchez, Thomas M. Butzler, Steven M. Bogash, Timothy E. Elkner, R. Eric Oesterling, Michael D. Orzolek, and Lee J. Stivers

Board. Green bell peppers were the first crop evaluated. They were selected through a survey of growers attending the 2006 Western Pennsylvania Vegetable and Berry Growers Seminar as being the number one crop on which they wanted research to be conducted

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Peter J. Stoffella, Salvador J. Locascio, Teresa K. Howe, Steve M. Olson, Kenneth D. Shuler, and Charles S. Vavrina

Florida Agricultural Experiment Station Journal Series No. R-03971. We gratefully acknowledge the financial support provided by the Florida Bell Pepper Growers' Exchange. The cost of publishing this paper was defrayed in part by the payment of page

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Eric J. Votava and Paul W. Bosland

Random amplified polymorphic DNA (RAPD) analysis can provide a means of evaluating and comparing genetic variability within cultivars. The purpose of this study was to evaluate the relative genetic variability between accessions of two open-pollinated bell pepper cultivars: 'California Wonder', an heirloom cultivar, and 'Jupiter', a modern cultivar. RAPD molecular markers were used to assess the genetic variability between accessions of these two cultivars. The high levels of genetic variability found among accessions of 'California Wonder' may preclude its use as a standard cultivar in research.

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Ami N. Erickson and Albert H. Markhart

High temperature reduces fruit set in bell pepper [Capsicum annuum L. var. annuum (Grossum Group)], and reduction of pepper productivity, resulting from high temperature, may be a direct effect of temperature or an indirect effect of water stress induced by increased vapor pressure deficits (VPDs) at high temperature. We evaluated responses of plant growth, reproduction, net photosynthesis (PN), chlorophyll fluorescence, predawn respiration, leaf water potential, and stomatal conductance of `Ace' and `Bell Boy' bell pepper to elevated temperature (33 °C) with increased VPD (2.1 kPa) or elevated temperature with no increase in VPD (1.1 kPa). VPD had no effect on flower number or fruit set and did not adversely influence the physiological processes measured. Therefore, deleterious effects of high temperature on pepper fruit set does not appear to be temperature induced water stress, but is more likely a direct temperature response. Elevated temperature decreased fruit set but not flower production. Gas exchange measurements suggest failure to set fruit was not due to reduced leaf photosynthesis.

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Luz M. Reyes, Douglas C. Sanders, and Wayne G. Buhler

fertilizers in lettuce ( Lactuca sativa ; Khah and Arvanitoyannis, 2003 ), tomato ( Senthil-Valavan and Kumaresan, 2006 ), and bell pepper ( Wiedenfeld, 1986 ). A slow-release methylene-urea polymer-based liquid N fertilizer, Nitamin ® (Georgia Pacific

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Vincent M. Russo

Use of biological amendments in vegetable transplant production may affect plant development. Rhizosphere bacteria can alter conditions in the root zone and affect plant growth even if root tissue is not colonized. Arbuscular mycorrhizae (AM) affect plant development through symbiotic relations. Abiotic factors may mediate effects of biotic amendments. Organically certified potting medium was inoculated with a mix of Sinorhizobium sp. bacteria or a mix of AM fungi. Controls consisted of no amendment. Bell pepper, Capsicum annuum L., cv. Jupiter, seed were sown in the medium and irrigated either twice a day for 3 minutes per application or three times a day for 2 minutes per application. Seedlings were treated with 8, 16, 24, or 32 mL·L–1 of an organically certified liquid fertilizer beginning 3 weeks after sowing. Use of bacteria improved plant height and dry weight. Interactions of bacteria and fertilizer rate or irrigation regime affected plant height or dry weight. When irrigated twice a day, plants were tallest when provided 16 mL·L–1 fertilizer, and heaviest when provided 24 mL·L–1 fertilizer. When irrigated three times a day, plants were taller at the lower rates of fertilizer and heaviest at the highest rate of fertilizer. Use of AM had little effect on plant height and dry weight. Most of the responses when AM was the amendment were the result of fertilizer rate and irrigation regime. When irrigated twice a day, AM-treated plants were tallest and heaviest when provided at least 24 mL·L–1 fertilizer. Regardless of biological amendment, plant heights were correlated with plant dry weights over fertilizer rates and irrigation regime. Use of Sinorhizobium sp. appeared to provide a benefit to the development of bell pepper transplants.

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Mark G. Hutton and David T. Handley

In Maine and other parts of the northeastern United States, there is a consistent, strong market demand for high-quality, locally grown bell peppers. However, optimal temperatures for pepper production are between 60 to 80 °F ( Maynard and Hochmuth

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Amara R. Dunn, Lindsay E. Wyatt, Michael Mazourek, Stephen Reiners, and Christine D. Smart

In the United States, 56,200 acres of bell pepper were planted in 2011, with a total production value of just under $685 million [ U.S. Department of Agriculture (USDA), 2012b ]. However, desirable traits vary from region to region, based on a

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Michael Mazourek, George Moriarty, Michael Glos, Maryann Fink, Mary Kreitinger, Elizabeth Henderson, Greg Palmer, Ammie Chickering, Danya L. Rumore, Deborah Kean, James R. Myers, John F. Murphy, Chad Kramer, and Molly Jahn

‘Peacework’ is a new open-pollinated, early red bell pepper cultivar with Cucumber mosaic virus (CMV) resistance developed for and within organic systems. Development of this cultivar was conducted at Cornell University's Department of Plant

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Sanjeev K. Bangarwa, Jason K. Norsworthy, and Edward E. Gbur

Bell pepper is an important fresh-market vegetable crop in the southern United States [ U.S. Department of Agriculture (USDA), 2008 ]. Weeds are the major limiting factor in bell pepper production, competing for resources and harboring harmful crop