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The Influence of Chlormequat and Daminozide on Net Photosynthesis, Transpiration, and Photorespiration of Hybrid Geranium

Allan M. Armitage, Zeng-Ping Tu, H. M. Vines

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Abstract

Abstract Foliar application of 0.3% CCC applied to geranium ( Pelargonium x hortorum Bailey) resulted in increased net photosynthesis (Pn), transpiration (Tr), chlorophyll concentration, and reduced photorespiration as measured by post lower illumination CO 2 burst (PLIB) compared with plants treated with 0.5% SADH. Pn and Tr rates were enhanced beginning 2 to 3 days after the CCC treatment compared with control plants and remained elevated for a least 4 to 5 more days.

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Abstract Foliar application of 0.3% CCC applied to geranium ( Pelargonium x hortorum Bailey) resulted in increased net photosynthesis (Pn), transpiration (Tr), chlorophyll concentration, and reduced photorespiration as measured by post lower illumination CO 2 burst (PLIB) compared with plants treated with 0.5% SADH. Pn and Tr rates were enhanced beginning 2 to 3 days after the CCC treatment compared with control plants and remained elevated for a least 4 to 5 more days.

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Available abstract

Abstract Foliar application of 0.3% CCC applied to geranium ( Pelargonium x hortorum Bailey) resulted in increased net photosynthesis (Pn), transpiration (Tr), chlorophyll concentration, and reduced photorespiration as measured by post lower illumination CO 2 burst (PLIB) compared with plants treated with 0.5% SADH. Pn and Tr rates were enhanced beginning 2 to 3 days after the CCC treatment compared with control plants and remained elevated for a least 4 to 5 more days.

Key concepts: Geranium, Chlormequat, Transpiration, Photorespiration, Daminozide, Photosynthesis, Pelargonium, Geraniaceae

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The Influence of Chlormequat and Daminozide on Net Photosynthesis, Transpiration, and Photorespiration of Hybrid Geranium — Research Paper | ScholarLens