Lec7FactorsAffectingPhotosynthesis

In case of c4 at low co2 or 0 you are just having

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Unformatted text preview: sed greenhouse environment during winter • Reduced [CO2] – C3 versus C4 plants Compensation point you get a negative bc photorespiration for the C3 is happening and you get a compensation point for CO2 is shifting downward. in case of C4 at low CO2 or 0 you are just having regular respiration Factors Affecting Photosynthesis Chlorophyll Content • Old method of chlorophyll content determination – Extraction in acetone – Colorimetric analysis http://www.tu-cottbus.de/ Factors Affecting Photosynthesis Chlorophyll Content • New method – Minolta SPAD meter you just put on the leaf nd tells you the content. • SPAD = Soil-Plant Analyses Development • Accurate?? – Associate SPAD to chlorophyll* • Usefulness??? – Correlate SPAD to yield – Correlate SPAD to nitrogen content Text Factors Affecting Photosynthesis Chlorophyll Content • New method – Minolta SPAD meter • SPAD = Soil-Plant Analyses Development • Accurate?? – Associate SPAD to chlorophyll • Usefulness??? the more green the...
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