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Stephen E. McCann and Bingru Huang

areas of the canopy and brought to rest on the soil surface. Canopy height was measured as the average height of plants in each container. Leaf photochemical efficiency was estimated by measuring the variable to maximum fluorescence ratio (F v /F m

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Hua Shen, Hongmei Du, Zhaolong Wang, and Bingru Huang

climatic regions ( Fry and Huang, 2004 ). Both species were subjected to supraoptimal air temperatures (10 °C above the optimal temperature range). Heat tolerance was evaluated using two commonly used stress indicators, leaf photochemical efficiency and

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Jack Olson and Matthew Clark

leaf anatomy and cellular structure, 2) compare Chl and carotenoid concentration in leaves between variegated and WT seedlings, 3) investigate whether photochemical efficiency of PSII is altered in variegated seedlings, 4) examine whether light

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Jinyu Wang, Patrick Burgess, Stacy A. Bonos, William A. Meyer, and Bingru Huang

declined to 0.733–0.823 or 0.775–0.796, respectively. Fig. 5. Photochemical efficiency of ( A ) chewings fescue, ( B ) hard fescue, ( C ) sheep fescue and slender creeping red fescue, and ( D ) strong creeping red fescue as affected by heat stress compared

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Jia-yi Wang, Jian-shuang Shen, Mengmeng Gu, Jia Wang, Tang-ren Cheng, Hui-tang Pan, and Qi-xiang Zhang

results of photosynthesis measurements. We concluded that the incomplete development of PS II caused the decrease in photochemical efficiency and potential activity and ultimately decreased the P n of yellow-leafed forsythia. The CG progenies obtained in

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Michelle DaCosta and Bingru Huang

. The ratio of variable fluorescence (Fv) to maximum fluorescence (Fm), given as Fv/Fm, was measured to estimate percent photochemical efficiency of intact leaves. This measurement provides information on inhibition of electron transport from Photosystem

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Chenping Xu and Beiquan Mou

burning. Control plants were only watered with Hoagland solution. Four weeks after transplanting, leaf chlorophyll index (SPAD) and maximum photochemical efficiency (F v /F m ) were measured on the two largest leaves from each plant, then plants were

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Xiuju Bian, Emily Merewitz, and Bingru Huang

photochemical efficiency were determined as drought stress indicators. Turf quality was rated visually as an integral of grass color, uniformity, and density on a 0 to 9 scale, where 0 = brown, dead turf; and 9 = dark green and dense turf ( Beard, 1973 ). The

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Liang Cheng, Ning Zhang, and Bingru Huang

80 °C, samples were weighed a final time for DW. Leaf photochemical efficiency was estimated by measuring chlorophyll fluorescence expressed as the ratio of variable to maximum fluorescence ( F v / F m ) with a fluorescence induction monitor (OS 1FL

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Hongmei Du, Zhaolong Wang, Wenjuan Yu, and Bingru Huang

determine dry weight (DW). Leaf RWC was calculated as (FW – DW)/(TW – DW) × 100. Leaf photochemical efficiency was determined by measuring chlorophyll fluorescence of leaves, the ratio of variable fluorescence to maximal fluorescence (Fv/Fm), with a leaf