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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
24/02/1999 |
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Data da última atualização: |
04/03/1999 |
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Autoria: |
REDDY, K. R.; DeBUSK, W. F. |
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Título: |
Growth characteristics of aquatic macrophytes cultured in nutrient-enriched water: I. water hyacinth, water lettuce and pennywort. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Economic Botany, v.38, n.2, p.229-239, 1984. |
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Idioma: |
Inglês |
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Conteúdo: |
Seasonal growth characteristics and biomass yield potential of 3 floating aquatic macrophytes cultured in nutrient nonlimiting conditions were evaluated in central Florida's climatic conditions. Growth cycle (growth curve) of the plants was found to be complete when maximum plant density was reached and no additional increase in growth was recorded. Biomass yield per unit area time was found to be maximum in the linear phase of the growth curve; plant density in this phase was defined as "operacional plant density", a density range in which a biomass production system is operated to obtain the higher possible yields. Biomass yields were found to be 106,72, and 41 t (dry wt) ha-1yr-1, respectively, for water hyacinth (Eichhornia crassipes), water lettuce (Pistia stratiotes), and pennywort (Hydrocotyle umbellata). Operational plant density was found to be in the range of 500-2,000 g dry et m-2 for water hyacinth, 200-700 g dry wt m-2 for water lettuce, and 250-650 g dry wt m-2 for pennywort. Seasonality was observed in growth rates but not in operational plant density. Specific growth rate (% increase per day) was but not in operational plant density. Specific growth rate (% increase per day) was found to maximum at low plant densities and decreased as the plant density increased. Results show that water hyacinth and water lettuce can be successfully grown for a period of about 10 mo, while pennywort, a cool season plant, can be integrated into water hyacinth/water lettuce biomass production system to obtain high yields in the winter. MenosSeasonal growth characteristics and biomass yield potential of 3 floating aquatic macrophytes cultured in nutrient nonlimiting conditions were evaluated in central Florida's climatic conditions. Growth cycle (growth curve) of the plants was found to be complete when maximum plant density was reached and no additional increase in growth was recorded. Biomass yield per unit area time was found to be maximum in the linear phase of the growth curve; plant density in this phase was defined as "operacional plant density", a density range in which a biomass production system is operated to obtain the higher possible yields. Biomass yields were found to be 106,72, and 41 t (dry wt) ha-1yr-1, respectively, for water hyacinth (Eichhornia crassipes), water lettuce (Pistia stratiotes), and pennywort (Hydrocotyle umbellata). Operational plant density was found to be in the range of 500-2,000 g dry et m-2 for water hyacinth, 200-700 g dry wt m-2 for water lettuce, and 250-650 g dry wt m-2 for pennywort. Seasonality was observed in growth rates but not in operational plant density. Specific growth rate (% increase per day) was but not in operational plant density. Specific growth rate (% increase per day) was found to maximum at low plant densities and decreased as the plant density increased. Results show that water hyacinth and water lettuce can be successfully grown for a period of about 10 mo, while pennywort, a cool season plant, can be integrated into water hyacinth/water lettuce bio... Mostrar Tudo |
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Palavras-Chave: |
Alface de agua; Aquatic macrophyte; Aquatic macrophytes; Caracteristica de crescimento; Growth characteristics; Hydrocotyle umbellata; Jacinto de agua; Macrofita aquatica; Nutrient-enriched; Nutriente enrequecido; Nutriente enrequeciso; Pennywort; Umbigo-de-venus; Water hyacinth; Water lettuce. |
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Thesagro: |
Eichhornia Crassipes; Pistia Stratiotes. |
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Categoria do assunto: |
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Marc: |
LEADER 02577naa a2200337 a 4500
001 1793972
005 1999-03-04
008 1984 bl --- 0-- u #d
100 1 $aREDDY, K. R.
245 $aGrowth characteristics of aquatic macrophytes cultured in nutrient-enriched water$bI. water hyacinth, water lettuce and pennywort.
260 $c1984
520 $aSeasonal growth characteristics and biomass yield potential of 3 floating aquatic macrophytes cultured in nutrient nonlimiting conditions were evaluated in central Florida's climatic conditions. Growth cycle (growth curve) of the plants was found to be complete when maximum plant density was reached and no additional increase in growth was recorded. Biomass yield per unit area time was found to be maximum in the linear phase of the growth curve; plant density in this phase was defined as "operacional plant density", a density range in which a biomass production system is operated to obtain the higher possible yields. Biomass yields were found to be 106,72, and 41 t (dry wt) ha-1yr-1, respectively, for water hyacinth (Eichhornia crassipes), water lettuce (Pistia stratiotes), and pennywort (Hydrocotyle umbellata). Operational plant density was found to be in the range of 500-2,000 g dry et m-2 for water hyacinth, 200-700 g dry wt m-2 for water lettuce, and 250-650 g dry wt m-2 for pennywort. Seasonality was observed in growth rates but not in operational plant density. Specific growth rate (% increase per day) was but not in operational plant density. Specific growth rate (% increase per day) was found to maximum at low plant densities and decreased as the plant density increased. Results show that water hyacinth and water lettuce can be successfully grown for a period of about 10 mo, while pennywort, a cool season plant, can be integrated into water hyacinth/water lettuce biomass production system to obtain high yields in the winter.
650 $aEichhornia Crassipes
650 $aPistia Stratiotes
653 $aAlface de agua
653 $aAquatic macrophyte
653 $aAquatic macrophytes
653 $aCaracteristica de crescimento
653 $aGrowth characteristics
653 $aHydrocotyle umbellata
653 $aJacinto de agua
653 $aMacrofita aquatica
653 $aNutrient-enriched
653 $aNutriente enrequecido
653 $aNutriente enrequeciso
653 $aPennywort
653 $aUmbigo-de-venus
653 $aWater hyacinth
653 $aWater lettuce
700 1 $aDeBUSK, W. F.
773 $tEconomic Botany$gv.38, n.2, p.229-239, 1984.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| 2. |  | FITZGERALD, M. A.; BERGMAN, C. J.; RESURRECCION, A. P.; MÖLLER, J.; JIMENEZ, R.; REINKE, R. F.; MARTIN, M.; BLANCO, P.; MOLINA, F.; CHEN, M.; KURI, V.; ROMERO, M. V.; HABIBI, F.; UMEMOTO, T.; JONGDEE, S.; GRATEROL, E.; REDDY, K. R.; BASSINELLO, P. Z.; SIVAKAMI, R.; RANI, N. S.; DAS, S.; WANG, Y. J.; INDRASARI, S. D.; RAMLI, A.; AHMAD, R.; DIPTI, S. S.; XIE, L.; LANG, N. T.; SINGH, P.; TORO, D. C.; TAVASOLI, F.; MESTRES, C. Addressing the dilemmas of measuring amylose in rice. Cereal Chemistry, v. 86, n. 5, p. 492-498, Sept./Oct. 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 2 | |
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