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Melek Ekinci, Ertan Yildirim, Atilla Dursun, and Metin Turan

pots were irrigated to field capacity with saline solutions to maintain the level of salinity after transplanting. Leaf chlorophyll reading value. A portable chlorophyll meter (SPAD-502; Konica Minolta Sensing, Inc., Japan) was used to measure leaf

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Pinghai Ding, Leslie H. Fuchigami, and Carolyn F. Scagel

The chlorophylls, chlorophyll a (Chl a) and chlorophyll b (Chl b), are essential pigments for the conversion of light energy to stored chemical energy in plants and their presence and function is important from both physiological and applied

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Chenping Xu and Beiquan Mou

largest leaves of each plant to measure relative water content (RWC), specific leaf area (SLA), succulence, chlorophyll content, and nutritional values. Specific leaf area was calculated as SLA = leaf area/DW ( Evans, 1972 ). Leaf RWC was calculated as RWC

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Dean A. Kopsell, Carl E. Sams, T. Casey Barickman, and Robert C. Morrow

Light is one of the most important environmental stimuli affecting plant growth and development ( Christie, 2007 ; Kopsell and Sams, 2013 ). Plants have evolved specialized chlorophyll and carotenoid pigments to capture light energy to drive

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Masoud Arghavani, Mohsen Kafi, Mesbah Babalar, Roohangiz Naderi, Md. Anamul Hoque, and Yoshiyoki Murata

. Absorbance of the solution was measured at 515 nm and compared with a standard curve to determine TNC content. Chlorophyll was extracted by soaking 0.1 g of fresh leaf sample in 20 mL of dimethyl sulfoxide in the dark for 72 h ( Hiscox and Israelstam, 1979

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Oscar A. Monje and Bruce Bugbee

Two types of nondestructive chlorophyll meters were compared with a standard, destructive chlorophyll measurement technique. The nondestructive chlorophyll meters were 1) a custom built, single-wavelength meter, and 2) the recently introduced, dual-wavelength, chlorophyll meter from Minolta (model SPAD-502). Data from both meters were closely correlated with destructive measurements of chlorophyll (r2 = 0.90 and 0.93; respectively) for leaves with chlorophyll concentrations ranging from 100 to 600 mg·m-2, but both meters consistently overestimated chlorophyll outside this range. Although the dual-wavelength meter was slightly more accurate than the single-wavelength meter (higher r2), the light-scattering properties of leaf cells and the nonhomogeneous distribution of chlorophyll in leaves appear to limit the ability of all meters to estimate in vivo chlorophyll concentration.

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James Mattheis and David R. Rudell

chlorophyll fluorescence is a means to detect low-pO 2 stress in apple fruit ( DeEll et al., 1999 ) and to identify the low-pO 2 limit (LOL) for apple fruit during CA storage, a type of dynamic CA (DCA) storage management ( DeLong et al., 2004b ). Apples

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P.C. Andersen, J.G. Norcini, and G.W. Knox

Abbreviations: A, net CO 2 assimilation; chl, chlorophyll; Ci, intercellular CO 2 concentration; E, transpiration; GI, growth index, GLM, general linear model; gs, stomatal conductance; LT, leaf temperature; RLWC, relative leaf water content; SLW

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Jaejoon Kim and David J. Wolyn

senescence was hypothesized to contribute to freezing tolerance and consequently improved longevity and yield. GM showed earlier accumulation of nitrogen and proline in the rhizome and earlier decrease in crown water percentage and fern chlorophyll

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Ritu Dhir, Richard L. Harkess, and Guihong Bi

., 2011 ). The newly developing leaves of ivy geranium turn white and lack chlorophyll, are small, and curl upward. Colloquial information and producers’ practices in ivy geranium production indicated heat-induced foliar bleaching could be alleviated using