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Masoume Amirkhani, Anil N. Netravali, Wencheng Huang, and Alan G. Taylor

formulation had greater FW, plant height, and leaf area compared with the control. All the coated treatments had enhanced plant development than the control, based on the percentage of plants with five or six leaves (L 5 D, L 6 D) and SPAD readings. There was

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D. Allen Pattillo, Wheeler G. Foshee III, Eugene K. Blythe, Jeremy Pickens, Daniel Wells, Tyler A. Monday, and Terrill R. Hanson

irrigation frequency. This was related to higher canopy temperature causing chlorophyll degradation in dry conditions, and thus leading to greater reflectance and greater SPAD readings. Additionally, SPAD measurements were positively correlated with

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Asmita Paudel, Ji Jhong Chen, Youping Sun, Yuxiang Wang, and Richard Anderson

. No flowers were observed in A. barnebyi and C. fruticosa during the experimental period. Clematis fruticosa and E. septentrionale had no significant reduction in SPAD readings with increasing EC levels. Vertical bars represent standard errors

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Youping Sun, Genhua Niu, and Christina Perez

. SPAD reading and gas exchange. Leaf greenness (or relative chlorophyll content) of all plants was measured using a handheld SPAD chlorophyll meter (Minolta Camera Co., Osaka, Japan) 1 week before harvest. For each plant, four leaves evenly distributed

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Ah-Chiou Lee, Fang-Shin Liao, and Hsiao-Feng Lo

). Measurements were made before ‘Fu San’ bolted (35 to 42 d after transplanting with a stem length of 0.5 to 1.2 cm). SPAD measurements were made on fully expanded leaves and averaged over three readings per plant. The yield was calculated by weighing the plants

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Jayesh B. Samtani, John B. Masiunas, and James E. Appleby

ester at the 25% rate had lower SPAD readings compared with the control (data table not shown). This could be the result of leaf yellowing on seedlings treated with 2,4-D ester. In July and August, herbicide treatment did not affect leaf greenness

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Huseyin Karlidag, Ertan Yildirim, Metin Turan, Mucahit Pehluvan, and Figen Donmez

fungicide treatments in either experiment. Weeds were kept under control by hand-weeding. In both years, regular cultural practices were applied uniformly through all plots. Chlorophyll measurements (SPAD readings) A portable chlorophyll meter (SPAD-502

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Amanda Bayer

, as determined by leaf SPAD readings, for plants receiving the WWRI and RI treatments were greater than WW treatment, which was similar to RIWW treatment ( Table 2 ). Stomatal conductance of sneezeweed was similar between treatments except RI was lower

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Ji Jhong Chen, Yuxiang Wang, Asmita Paudel, and Youping Sun

·m –1 ( Valdez-Aguilar et al., 2011 ). Chlorophyll content . The chlorophyll content decreased as EC levels increased ( Fig. 2C ). There was a linear correlation ( P < 0.0001) between SPAD readings of rose of sharon and EC levels. The SPAD readings of

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Yan Chen, Regina P. Bracy, Allen D. Owings, and Joey P. Quebedeaux

nm. Readings were taken from every plant by randomly selecting five youngest, fully expanded leaves from a plant and taking three readings per leaf. The final SPAD meter reading of a plant was the average of 15 readings. Flowering performance during