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Ustun Sahin, Melek Ekinci, Fatih Mehmet Kiziloglu, Ertan Yildirim, Metin Turan, Recep Kotan and Selda Ors

investigation in relation to drought acclimation of lettuce treated with PGPR in lettuce. Therefore, this study was undertaken to determine the effects of PGPR on some physiological characteristics, plant growth, yield, and plant nutrient content of lettuce

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Huangjun Lu and Richard Raid

Bacterial leaf spot of lettuce ( Lactuca sativa L.), caused by Xanthomonas campestris pv. vitians , is an economically important disease of lettuce in the world ( Barak et al., 2001 ; Patterson et al., 1986 ; Pennisi and Pane, 1990 ; Sahin

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Noriko Ohtake, Masaharu Ishikura, Hiroshi Suzuki, Wataru Yamori and Eiji Goto

of lettuce continue to increase in the food service industry, including fast food restaurants, the efficient operation of plant factories with artificial lighting are expected to take advantage of their characteristics, which are unaffected by weather

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Yunwen Wang, Huangjun Lu, Richard N. Raid, Gregg S. Nuessly and Georgy Faroutine

Lettuce ( Lactuca sativa L.) is one of the top ten most valuable crops in the United States with an average annual value of $2.1 billion ( USDA, 2014 ). There are eight types of lettuce grown in the world, whereas four of them including crisphead

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Germán V. Sandoya, Krishna Subbarao and Ryan Hayes

Verticillium wilt is a destructive disease of lettuce ( Lactuca sativa L.) in the Salinas Valley of California, a region that accounts for 50% of the U.S. lettuce production ( Monterey County Crop Report, 2012 ). The disease is caused by the

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Melek Ekinci, Ertan Yildirim, Atilla Dursun and Metin Turan

( Shannon, 1997 ). Lettuce is considered to be a relatively salt-sensitive vegetable ( Barassi et al., 2006 ). Salinity has been shown to reduce seed germination, fresh and dry weight of shoot, and root weight of lettuce both by ionic and osmotic effects

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Beiquan Mou and Yong-Biao Liu

. McCreight and Ravindra G. Bhat for their critical review and discussion of the manuscript. This research was supported in part by a grant from the California Lettuce Research Board.

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Samuel S. Liu and Yong-Biao Liu

United States-exported lettuce faces phytosanitary barriers in overseas markets due to the presence of quarantined pests including western flower thrips ( Frankliniella occidentalis ) for Taiwan, and california pea leafminer ( Liriomyza langei ) and

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Edward J. Ryder

David S. Milligan provided technical help. This research was partiallv supported by the California iceberg Lettuce Research Board. The Costof publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this

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Mark A. Mikel

Lettuce ( Lactuca sativa ) is the most commonly consumed of fruits or vegetables in the United States as determined by a mid-1990s survey ( Hu et al., 2005 ; Johnston et al., 2000 ). Lettuce is a contributor of dietary vitamins A and C as well as