Sorghum and Salinity
II. Gas Exchange and Chlorophyll Fluorescence of Sorghum under Salt Stress
Godfrey Wafula Netondoa,
John Collins Onyangoa and
Erwin Beck*,b
a Department of Botany, Faculty of Science, Maseno University, P.O. Private Bag, Maseno, Kenya
b Department of Plant Physiology, University of Bayreuth, Universitätstraße 30, 95440, Bayreuth, Germany

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Fig. 1. Effects of increasing NaCl concentration in the irrigation medium on total leaf area per plant of the two sorghum varieties Serena and Seredo. Means of 4 replicates ±SD.
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Fig. 2. Effects of increasing NaCl concentration in the irrigation medium on chlorophyll a (A), chlorophyll b (B), and chlorophyll a/b ratio (C) in the two sorghum varieties Serena and Seredo. Means of 4 replicates ±SD.
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Fig. 3. Effects of increasing NaCl concentration in the irrigation medium on CO2 assimilation rate (A), stomatal conductance (B), and intercellular CO2 concentration (C) of the two sorghum varieties Serena and Seredo. Means of 3 replicates ±SD.
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Fig. 4. Relationship between CO2 assimilation rate and stomatal conductance for NaCl stressed sorghum varieties Serena (A) and Seredo (B). Data points represent individual measurements.
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Fig. 5. Effects of increasing NaCl concentration in the irrigation medium on Fv/Fm ratio (A), electron transport rate (B), and non-photochemical quenching (C) of the two sorghum varieties Serena and Seredo. Means of 3 replicates ±SD.
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Copyright © 2004 by the Crop Science Society of America.