Effect of elevated CO2 and nitrogen nutrition on photosynthesis, growth and carbon-nitrogen balance in Brassica juncea

The response of Brassica juncea var. Bio‐183‐92 to elevated CO2 under increased nitrogen treatment was studied. There was an interactive effect of CO2 and nitrogen nutrition, indicating that, on the addition of more nitrogen, the plants sustained the positive effect of CO2 enrichment by utilizing ad...

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Veröffentlicht in:	Journal of agronomy and crop science (1986) 2000-06, Vol.184 (4), p.271-276
Hauptverfasser:	Uprety, D.C, Mahalaxmi, V
Format:	Artikel
Sprache:	eng
Schlagworte:	Agricultural and forest climatology and meteorology. Irrigation. Drainage Agricultural and forest meteorology Agronomy. Soil science and plant productions Biological and medical sciences Brassica juncea carbohydrates carbon dioxide carbon dioxide enrichment carbon nitrogen ratio carbon-nitrogen balance Climatic adaptation. Acclimatization elevated CO2 Fundamental and applied biological sciences. Psychology General agronomy. Plant production growth interactions nitrogen nitrogen fertilization nutrient availability open top chamber photosynthesis
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Zusammenfassung:	The response of Brassica juncea var. Bio‐183‐92 to elevated CO2 under increased nitrogen treatment was studied. There was an interactive effect of CO2 and nitrogen nutrition, indicating that, on the addition of more nitrogen, the plants sustained the positive effect of CO2 enrichment by utilizing additional carbohydrates for the development of new sinks. Excess carbohydrate enables plants to be flexible and responsive to additional nitrogen application to sustain the CO2 enrichment effect.
ISSN:	0931-2250 1439-037X
DOI:	10.1046/j.1439-037x.2000.00392.x