biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 42:217-222, 1999 | DOI: 10.1023/A:1002156517792

Photosynthetic Characteristics in Two Wheat Genotypes as Affected by Nitrogen Nutrition

V. Jain1, M. Pal1, K.C. Lakkineni1, Y.P. Abrol1
1 Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi, India

Chlorophyll (Chl) a and b content, ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO) content and activity, and electron transport rate were measured in flag leaves of wheat genotypes Uniculm and Kalyansona, grown at suboptimal and optimal supply of nitrogen. The Chl content, RuBPCO activity, and electron transport rate were decreased due to suboptimal nitrogen supply only in Kalyansona. There was no change in the ratio of RuBPCO and photosystem 2 (PS2) activity at various stages which suggests that there was no alteration in distribution of N due to additional N supply.

Keywords: chlorophyll; photochemical activity; photosystem 2; ribulose-1,5-bisphosphate carboxylase, oxygenase; Triticum aestivum
Subjects: chlorophyll, nitrogen supply; nitrogen supply, photosynthesis, genotypes; oxygenase, nitrogen supply; photochemical activity, nitrogen supply; photosystem 2, nitrogen supply; ribulose 1,5-bisphosphate carboxylase/ oxygenase, nitrogen supply; 14C-sucrose transport, root; Triticum aestivum; wheat genotypes, photosynthesis

Published: September 1, 1999  Show citation

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Jain, V., Pal, M., Lakkineni, K.C., & Abrol, Y.P. (1999). Photosynthetic Characteristics in Two Wheat Genotypes as Affected by Nitrogen Nutrition. Biologia plantarum, 42(2), 217-222. doi: 10.1023/A:1002156517792
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