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Letizia Tozzini, Paolo Sabbatini, and G. Stanley Howell

/F m in the N-sprayed leaves was observed. Photochemical efficiency and chlorophyll content in these leaves were otherwise unchanged by either factor after veraison. Table 4. Net assimilation rate (P n ) measured at midday (1100 hr to 1300 hr ), 8

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Francesco Rossini, Roberto Ruggeri, Tiziano Celli, Francesco Maria Rogai, Ljiljana Kuzmanović, and Michael D. Richardson

ascribed to leaf expansion that compensates for a reduced net assimilation rate, thus resulting in an increased photosynthetic capacity per plant ( Adams and Langton, 2005 ; Solhaug, 1991 ). Moreover, even though leaves and tillers of different cool

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Oscar Monje, Sylvia Anderson, and Gary W. Stutte

·mol −1 to shorten the time for sampling. The responses of net assimilation rate and g S to CO 2 concentration saturate at 1000 μmol·mol −1 and are not significantly different from rates measured at 800 μmol·mol −1 (data not shown). The LI-COR leaf

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Timothy L. Righetti, Carmo Vasconcelos, David R. Sandrock, Samuel Ortega-Farias, Yerko Moreno, and Francisco J. Meza

then calculated on a leaf-area basis. These net assimilation rates are obtained by dividing the amount of CO 2 assimilated by the area of the leaf within the chamber or sampling cuvette. Chamber size and analytical approach vary in experiments

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Lloyd L. Nackley, Jig Han Jeong, Lorence R. Oki, and Soo-Hyung Kim

conditions ( Table 1 ), after more than 5 months of CO 2 enrichment the plants grown in the elevated CO 2 chambers had consistently greater net assimilation rates across all N treatments ( Table 1 ). However, decomposition of the A - C i curves showed

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Marlene Ayala and Gregory Lang

-labeling. Net assimilation rate (A) varied between 15.7 and 20.4 μmol·m −2 ·s −1 CO 2 among the three leaf populations and dates. Sampling and 13 C analysis. Immediately after labeling, three fully expanded leaves were sampled from each leaf type to estimate

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Laura Elisa Acuña-Maldonado and Marvin P. Pritts

storage and internal cycling of remobilized N. Strawberry plants accumulate biomass in response to CO 2 enrichment ( Chen et al., 1997b , 1997c ). Under high CO 2 conditions, leaf net assimilation rate increased, leading to enhanced vegetative

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Samuel Doty, Ryan W. Dickson, and Michael Evans

(1997) found that salvia ( Salvia sp.) seedlings grown in trays with 7.3-cm 3 root volumes suffered from root restriction and had decreased net assimilation rates compared with trays with 55-, 166-, and 510-cm 3 root volumes. Latimer (1991) also

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Zhengnan Yan, Dongxian He, Genhua Niu, Qing Zhou, and Yinghua Qu

HortScience 43 1944 1946 Bruggink, G.T. Heuvelink, E. 1987 Influence of light on the growth of young tomato, cucumber and sweet pepper plants in the greenhouse: Effects on relative growth rate, net assimilation rate and leaf area ratio Scientia Hort. 31 3 1737

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Desire Djidonou and Daniel I. Leskovar

). Moreover, growth traits, including relative growth rate (RGR), net assimilation rate (NAR), and leaf area ratio (LAR), are greatly dependent on the efficiency with which intercepted radiation is transformed into DW ( Dapoigny et al., 2000 ). Nutrient