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Xiaotao Ding, Liyao Yu, Yuping Jiang, Shaojun Yang, Lizhong He, Qiang Zhou, Jizhu Yu, and Danfeng Huang

length, width, and area measurements. The length and width of 15 leaves from the bottom to the top were measured with a caliper, and the mean of every leaf length and width was calculated. Leaf length was measured from the lamina tip to the intersection

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Alexander R. Kowalewski, Brian M. Schwartz, Austin L. Grimshaw, Dana G. Sullivan, and Jason B. Peake

before the initiation of traffic. Measurements of leaf morphology included the leaf length, leaf width, and leaf angle. Leaf length and leaf width were assessed using an electronic digital caliper with 0.001 mm readability. Leaf angle was measured on a 1

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Yoshiaki Kitaya, Genhua Niu, Toyoki Kozai, and Maki Ohashi

Lettuce (Lactuca sativa L. cv. Summer-green) plug transplants were grown for 3 weeks under 16 combinations of four levels (100, 150, 200, and 300 μmol·m-2·s-1) of photosynthetic photon flux (PPF), two photoperiods (16 and 24 h), and two levels of CO2 (400 and 800 μmol·mol-1) in growth chambers maintained at an air temperature of 20 ±2 °C. As PPF increased, dry mass (DM), percent DM, and leaf number increased, while ratio of shoot to root dry mass (S/R), ratio of leaf length to leaf width (LL/LW), specific leaf area, and hypocotyl length decreased. At the same PPF, DM was increased by 25% to 100% and 10% to 100% with extended photoperiod and elevated CO2 concentration, respectively. Dry mass, percent DM, and leaf number increased linearly with daily light integral (DLI, the product of PPF and photoperiod), while S/R, specific leaf area, LL/LW and hypocotyl length decreased as DLI increased under each CO2 concentration. Hypocotyl length was influenced by PPF and photoperiod, but not by CO2 concentration. Leaf morphology, which can be reflected by LL/LW, was substantially influenced by PPF at 100 to 200 μmol·m-2·s-1, but not at 200 to 300 μmol·m-2·s-1. At the same DLI, the longer photoperiod promoted growth under the low CO2 concentration, but not under the high CO2 concentration. Longer photoperiod and/or higher CO2 concentration compensated for a low PPF.

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Carole L. Bassett, D. Michael Glenn, Philip L. Forsline, Michael E. Wisniewski, and Robert E. Farrell Jr

measurements. Plant material from the core collection was sampled in the late summer of 2005 and leaf area, leaf length and width, and leaf perimeter were measured with a Model CI-203 leaf area meter (CID Bio-Science Inc., Camas, WA) on fully expanded leaves at

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Alan Zuk, Qi Zhang, Ted Helms, and Harlene Hatterman-Valenti

landscape plant. To determine leaf length and flower height, the longest leaf and tallest flower of each plant were measured (in Oct. 2012–13) to the closest centimeter from the soil surface to the tip of the leaf or flower. The longest leaf was artificially

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Winston Elibox and Pathmanathan Umaharan

colors of the spathe, spadix, and peduncle were also recorded using a horticultural color chart (Wilson Color Ltd., U.K.). Leaf parameters were measured using the second fully opened leaf. Leaf length was taken as the linear distance from the uppermost

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John R. Stommel and Robert J. Griesbach

practices. Table 1. Mean values and sd s for mature pepper fruit color, fruit length/fruit diameter at midpoint, number of fruit per cluster, leaf color, leaf length, leaf width, plant height, and plant diameter in parental, F 1 , F 2 , and

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Xiaoya Cai, Laurie E. Trenholm, Jason Kruse, and Jerry B. Sartain

. Turf visual quality and color scores, shoot dry weight (DW), leaf length and width, root dry weight (DW), thatch, leaf tissue total Kjehdahl nitrogen (TKN), and potassium (K) concentration in response to shade in ‘Captiva’ st. augustinegrass

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Ambani R. Mudau, Puffy Soundy, Hintsa T. Araya, and Fhatuwani N. Mudau

of baby spinach at different growing seasons. Data collection The following data were collected: weight loss, leaf length, mineral and trace elements, total flavonoids, and antioxidant activity. Weight loss. Baby spinach leaves were weighed using a

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Robert R. Shortell, William A. Meyer, and Stacy A. Bonos

measured from the collar to the tip of the blade. Flag leaf length and width measurements were used to characterize those types with distinct leaf texture differences such as narrow leaf blades. As a result of the large number of entries and the hot