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Hong-jia Xu, Masafumi Johkan, Toru Maruo, Natsuko Kagawa, and Satoru Tsukagoshi

SMs. Materials and Methods Experimental design. Experiments were conducted in an environment-controlled chamber at Chiba University, Matsudo Campus, from 4 Mar. to 9 Apr. 2019. Lettuce ( Lactuca sativa L. cv. Frillice; Snow Brand Seed Co. Ltd

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Xin Zhao, Edward E. Carey, Janice E. Young, Weiqun Wang, and Takeo Iwamoto

and antiproliferative activities of fruit and vegetables ( Eberhardt et al., 2000 ; Liu, 2003 ). Lettuce ( Lactuca sativa L.) is among the top five most commonly consumed vegetables in the U.S. ( Lucier and Jerardo, 2005 ). In lettuce, although

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Ida Di Mola, Youssef Rouphael, Giuseppe Colla, Massimo Fagnano, Roberta Paradiso, and Mauro Mori

interacting parameters such as the growing environment, species or cultivars as well as the salt concentration, source, and the time of exposure of the stress ( Rouphael et al., 2012a , 2017a ). Lettuce ( Lactuca sativa L.) is a major salad crop from the

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Martin P.N. Gent

concentrations of all other essential elements. A more detailed description is given in a previous report ( Gent, 2012a ). Plant material. Seeds of butterhead lettuce ( Lactuca sativa L.) cv. Buttercrunch were germinated in an artificial medium (Oasis cubes

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Myeong Whoon Seo, Dong Sik Yang, Stanley J. Kays, Gung Pyo Lee, and Kuen Woo Park

Lettuce ( Lactuca sativa L.) is the leading leafy vegetable worldwide with an estimated annual production of 23 × 10 6 t in 2007 ( Food Agriculture Organization of the United Nations, 2007 ). The most widely used lettuce types are classified into

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Hardeep Singh, Bruce Dunn, Mark Payton, and Lynn Brandenberger

. 2001 Comparison of two nutrient solutions’ effect on growth and nutrient levels of lettuce ( Lactuca sativa ) cultivars Acta Hort. 644 69 76 Maboko, M.M. Du Plooy, C.P. 2008 Evaluation of crisphead lettuce cultivars ( Lactuca sativa ) for winter

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Rahmatallah Gheshm and Rebecca Nelson Brown

Lettuce ( Lactuca sativa ) is one of the most important commercial leafy vegetables in the United States. Annually, Americans eat an average of around 24.5 lb of lettuce per capita, and more than 50% of the lettuce consumed in 2018 was head lettuce

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Charlene M. Grahn, Chris Benedict, Tom Thornton, and Carol Miles

have decreased ( Cook, 2008 ). Bagged ready-to-eat salad mixes were first widely distributed in supermarkets in 1989, and were composed of mature heads of lettuce ( Lactuca sativa ; primarily iceberg type) cut into bite-sized pieces using specialized

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Ricardo González-Ponce, Esther G. López-de-Sá, and César Plaza

.) ( González-Ponce and García-López-de-Sá, 2007 ; Johnston and Richards, 2003 ; Plaza et al., 2007 ). To date, however, no data are available in the literature for lettuce ( Lactuca sativa L.), which is a leading vegetable crop in many parts of the world

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T. W. Whitaker and J. D. McCreight


Cos (romaine) lettuce (Lactuca sativa L.) accounted for less than 5% of California lettuce production in 19783. Cos lettuce adds color, flavor, and texture to tossed (chopped) lettuce salads. In addition, cos lettuce is more nutritious than crisphead lettuce (1).