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Cytokinin-Containing Seaweed and Humic Acid Extracts Associated with Creeping Bentgrass Leaf Cytokinins and Drought Resistance

Xunzhong Zhang and E. H. Ervin*

Dep. of Crop and Soil Environmental Sciences, Virginia Tech, Blacksburg, VA 24061-0404



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Fig. 1. Turf quality response of three cultivars of creeping bentgrass to drought [turf quality was rated on a visual scale of 1–9 with 1 indicating the poorest quality–permanent wilting and 9 indicating the best quality, and vertical bars represent LSD (0.05)].

 


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Fig. 2. Turf quality of creeping bentgrass as influenced by natural product treatments [turf quality was rated on a visual scale of 1–9 with 1 indicating the poorest quality–permanent wilting and 9 indicating the best quality, and vertical bars represent LSD (0.05)].

 


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Fig. 3. Photochemical efficiency (PE; Fv/Fm) response of three cultivars of creeping bentgrass to drought [vertical bars represent LSD (0.05)].

 


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Fig. 4. Photochemical efficiency (PE; Fv/Fm) of creeping bentgrass as influenced by natural product treatment under drought [vertical bars represent LSD (0.05)].

 





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