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Mindy L. Bumgarner, K. Francis Salifu, Michael V. Mickelbart, and Douglass F. Jacobs

Technologies, Inc., Plainfield, IL) and the Accumet 950 pH/ion Meter (Fisher Scientific, Pittsburgh, PA), respectively. Seedlings were sampled on a different five dates (21 June, 7 July, 29 July, 14 Aug., and 10 Sept. 2007) for predawn leaf water potential

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Mahvash Zarei, Majid Azizi, Majid Rahemi, and Ali Tehranifar

, for each treatment were measured. Leaf water potential. The third fully expanded leaf on each plant was used to measure midday leaf water potential (ψ). After cutting a leaf with a sharp blade, it was put in the chamber of a pressure bomb (PMS

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Emad Bsoul, Rolston St. Hilaire, and Dawn M. VanLeeuwen

( Ehleringer et al., 1993 ; Farquhar et al., 1989 ), and chlorophyll fluorescence ( Feser et al., 2005 ; Percival and Sheriffs, 2002 ) are physiological attributes that delineate the fitness of a plant for drought. Predawn stem or leaf water potential is a

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R. Paul Schreiner and Jungmin Lee

, which may have influenced whole vine biomass and nutrient contents. Leaf water potential was determined from the same leaves used for gas exchange by placing the leaf in a plastic bag and cutting the petiole with a razor blade immediately after taking

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B. Shaun Bushman, Lijun Wang, Xin Dai, Alpana Joshi, Joseph G. Robins, and Paul G. Johnson

d of treatment, PI 440603 had significantly higher ψLEAF than the other three entries ( Fig. 3 ). Fig. 3. Leaf water potential responses of four kentucky bluegrass entries under increasing salt treatments and for 28 d of treatment. Error bars

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

), instantaneous water use efficiency (WUE i ) and leaf water potential at midday (Ψ l ) of lettuce plants grown in the second growing year. Discussion The inhibition of the photosynthesizing leaf area, stunted growth, and yield reduction are general responses of

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R. Paul Schreiner

indicate shoot growth; fine root density to indicate root growth; AMF colonization of fine roots; midday leaf water potential (Ψ leaf ) and stomatal conductance ( g s ) as measures of plant water status; fruit yield; and berry quality attributes (soluble

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Julián Miralles-Crespo, María J. Sánchez-Blanco, Alejandra Navarro G., Juan J. Martínez-Sánchez, Jose A. Franco L., and Sebastián Bañón A.

R. alaternus and C. citrinus , respectively ( Fig. 5 ), values that can be considered reference values for shrubs without water stress ( De Herralde et al., 1998 ; Munné-Bosch et al., 1999 ). Fig. 5. Leaf water potential evolution for drought and

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T.J. Smalley, M.A. Dirr, A.M. Armitage, B.W. Wood, R.O. Teskey, and R.F. Severson

Abbreviations: CK, cytokinins; LWP, leaf water potential. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate

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Andrew G. Reynolds, Amal Ehtaiwesh, and Christiane de Savigny

increased yields of Geneva double curtain-trained ‘Concord’ by 13% as well as increasing berry and pruning weights. In New York, Liu et al. (1978) measured leaf water potential <−16 bars in field-grown ‘Concord’ vines; however, despite these conditions