biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 44:153-155, 2001 | DOI: 10.1023/A:1017911513854

Effect of Nitrogen and Water Stress on Photosynthesis and Nitrogen Content in Wheat

A. Arora1, V.P. Singh1, J. Mohan2
1 Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi-, India
2 Department of Botany, JV College Baraut, Meerut-, India

The relationships between photosynthesis, leaf nitrogen content and water stress were studied in ten genotypes of wheat differing in the presence of dwarfing genes. Net photosynthetic rate (PN) was mostly higher at ear emergence stage than at anthesis stage. PN decreased with water stress (leaf water potential from -2.0 to -2.5 MPa), and with reduced leaf N content in all genotypes studied. Among the various genotypes, single dwarf and wild types showed higher PN rate and maintained higher leaf N content under different N doses and water supply as compared to the other types studied.

Keywords: dwarfing genes; moisture stress; Triticum aestivum
Subjects: dwarfing genes, nitrogen supply; gas exchange, nitrogen metabolism; gas exchange, water stress, rehydration; rehydration after water stress; Triticum aestivum; water stress, photosynthesis; wheat genotypes, photosynthesis

Published: March 1, 2001  Show citation

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Arora, A., Singh, V.P., & Mohan, J. (2001). Effect of Nitrogen and Water Stress on Photosynthesis and Nitrogen Content in Wheat. Biologia plantarum, 44(1), 153-155. doi: 10.1023/A:1017911513854
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