Effects of fruiting on the growth of Arabica coffee trees as related to carbohydrate and nitrogen status and to nitrate reductase activity
The effects of fruiting on the vegetative growth, carbohydrate and N content, and nitrate reductase activity of 8-year-old Coffea arabica cv. Red Catuai trees supplied with N-NO3 or urea were monitored in a field experiment conducted in Brazil during the 1997-88 growing season. Branch growth rate and leaf area increase were higher in de-fruited compared to fruiting trees. Starch content fluctuated in both the leaves and roots but the levels were always higher in de-fruited compared to fruiting trees. The presence or absence of fruits did not affect the total soluble sugar content in both leaves and roots. Nitrate reductase activity was higher in the slow growing, fruiting trees compared to the faster growing, de-fruited trees, with the enzyme activity being higher in leaves than in roots. N-NO3 content was not affected by fruiting while amino-N was higher in de-fruited compared to fruiting trees.
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2001
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Subjects: | COFFEA, COFFEA ARABICA, RAMAS, CARBOHIDRATOS, COMPOSICION QUIMICA, CAFE, ACTIVIDAD ENZIMATICA, ENZIMAS, FRUTAS, CRECIMIENTO, INDICE DE SUPERFICIE FOLIAR, HOJAS, NITRATO REDUCTASA, NITROGENO, CONTENIDO DE NITROGENO, RAICES, ALMIDON, AZUCARES, |
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KOHA-OAI-BVE:893142020-02-03T21:57:15ZEffects of fruiting on the growth of Arabica coffee trees as related to carbohydrate and nitrogen status and to nitrate reductase activity 42390 Amaral, J.A.T. 61084 DaMatta, F.M. 109906 Rena, A.B. 2001The effects of fruiting on the vegetative growth, carbohydrate and N content, and nitrate reductase activity of 8-year-old Coffea arabica cv. Red Catuai trees supplied with N-NO3 or urea were monitored in a field experiment conducted in Brazil during the 1997-88 growing season. Branch growth rate and leaf area increase were higher in de-fruited compared to fruiting trees. Starch content fluctuated in both the leaves and roots but the levels were always higher in de-fruited compared to fruiting trees. The presence or absence of fruits did not affect the total soluble sugar content in both leaves and roots. Nitrate reductase activity was higher in the slow growing, fruiting trees compared to the faster growing, de-fruited trees, with the enzyme activity being higher in leaves than in roots. N-NO3 content was not affected by fruiting while amino-N was higher in de-fruited compared to fruiting trees.The effects of fruiting on the vegetative growth, carbohydrate and N content, and nitrate reductase activity of 8-year-old Coffea arabica cv. Red Catuai trees supplied with N-NO3 or urea were monitored in a field experiment conducted in Brazil during the 1997-88 growing season. Branch growth rate and leaf area increase were higher in de-fruited compared to fruiting trees. Starch content fluctuated in both the leaves and roots but the levels were always higher in de-fruited compared to fruiting trees. The presence or absence of fruits did not affect the total soluble sugar content in both leaves and roots. Nitrate reductase activity was higher in the slow growing, fruiting trees compared to the faster growing, de-fruited trees, with the enzyme activity being higher in leaves than in roots. N-NO3 content was not affected by fruiting while amino-N was higher in de-fruited compared to fruiting trees.COFFEACOFFEA ARABICARAMASCARBOHIDRATOSCOMPOSICION QUIMICACAFEACTIVIDAD ENZIMATICAENZIMASFRUTASCRECIMIENTOINDICE DE SUPERFICIE FOLIARHOJASNITRATO REDUCTASANITROGENOCONTENIDO DE NITROGENORAICESALMIDONAZUCARESRevista Brasileira de Fisiología Vegetal (Brasil) |
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COFFEA COFFEA ARABICA RAMAS CARBOHIDRATOS COMPOSICION QUIMICA CAFE ACTIVIDAD ENZIMATICA ENZIMAS FRUTAS CRECIMIENTO INDICE DE SUPERFICIE FOLIAR HOJAS NITRATO REDUCTASA NITROGENO CONTENIDO DE NITROGENO RAICES ALMIDON AZUCARES COFFEA COFFEA ARABICA RAMAS CARBOHIDRATOS COMPOSICION QUIMICA CAFE ACTIVIDAD ENZIMATICA ENZIMAS FRUTAS CRECIMIENTO INDICE DE SUPERFICIE FOLIAR HOJAS NITRATO REDUCTASA NITROGENO CONTENIDO DE NITROGENO RAICES ALMIDON AZUCARES |
spellingShingle |
COFFEA COFFEA ARABICA RAMAS CARBOHIDRATOS COMPOSICION QUIMICA CAFE ACTIVIDAD ENZIMATICA ENZIMAS FRUTAS CRECIMIENTO INDICE DE SUPERFICIE FOLIAR HOJAS NITRATO REDUCTASA NITROGENO CONTENIDO DE NITROGENO RAICES ALMIDON AZUCARES COFFEA COFFEA ARABICA RAMAS CARBOHIDRATOS COMPOSICION QUIMICA CAFE ACTIVIDAD ENZIMATICA ENZIMAS FRUTAS CRECIMIENTO INDICE DE SUPERFICIE FOLIAR HOJAS NITRATO REDUCTASA NITROGENO CONTENIDO DE NITROGENO RAICES ALMIDON AZUCARES 42390 Amaral, J.A.T. 61084 DaMatta, F.M. 109906 Rena, A.B. Effects of fruiting on the growth of Arabica coffee trees as related to carbohydrate and nitrogen status and to nitrate reductase activity |
description |
The effects of fruiting on the vegetative growth, carbohydrate and N content, and nitrate reductase activity of 8-year-old Coffea arabica cv. Red Catuai trees supplied with N-NO3 or urea were monitored in a field experiment conducted in Brazil during the 1997-88 growing season. Branch growth rate and leaf area increase were higher in de-fruited compared to fruiting trees. Starch content fluctuated in both the leaves and roots but the levels were always higher in de-fruited compared to fruiting trees. The presence or absence of fruits did not affect the total soluble sugar content in both leaves and roots. Nitrate reductase activity was higher in the slow growing, fruiting trees compared to the faster growing, de-fruited trees, with the enzyme activity being higher in leaves than in roots. N-NO3 content was not affected by fruiting while amino-N was higher in de-fruited compared to fruiting trees. |
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topic_facet |
COFFEA COFFEA ARABICA RAMAS CARBOHIDRATOS COMPOSICION QUIMICA CAFE ACTIVIDAD ENZIMATICA ENZIMAS FRUTAS CRECIMIENTO INDICE DE SUPERFICIE FOLIAR HOJAS NITRATO REDUCTASA NITROGENO CONTENIDO DE NITROGENO RAICES ALMIDON AZUCARES |
author |
42390 Amaral, J.A.T. 61084 DaMatta, F.M. 109906 Rena, A.B. |
author_facet |
42390 Amaral, J.A.T. 61084 DaMatta, F.M. 109906 Rena, A.B. |
author_sort |
42390 Amaral, J.A.T. |
title |
Effects of fruiting on the growth of Arabica coffee trees as related to carbohydrate and nitrogen status and to nitrate reductase activity |
title_short |
Effects of fruiting on the growth of Arabica coffee trees as related to carbohydrate and nitrogen status and to nitrate reductase activity |
title_full |
Effects of fruiting on the growth of Arabica coffee trees as related to carbohydrate and nitrogen status and to nitrate reductase activity |
title_fullStr |
Effects of fruiting on the growth of Arabica coffee trees as related to carbohydrate and nitrogen status and to nitrate reductase activity |
title_full_unstemmed |
Effects of fruiting on the growth of Arabica coffee trees as related to carbohydrate and nitrogen status and to nitrate reductase activity |
title_sort |
effects of fruiting on the growth of arabica coffee trees as related to carbohydrate and nitrogen status and to nitrate reductase activity |
publishDate |
2001 |
work_keys_str_mv |
AT 42390amaraljat effectsoffruitingonthegrowthofarabicacoffeetreesasrelatedtocarbohydrateandnitrogenstatusandtonitratereductaseactivity AT 61084damattafm effectsoffruitingonthegrowthofarabicacoffeetreesasrelatedtocarbohydrateandnitrogenstatusandtonitratereductaseactivity AT 109906renaab effectsoffruitingonthegrowthofarabicacoffeetreesasrelatedtocarbohydrateandnitrogenstatusandtonitratereductaseactivity |
_version_ |
1756059938705113089 |