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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
16/07/1996 |
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Data da última atualização: |
31/07/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, S. M. de; FELKER, P. |
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Afiliação: |
SONIA MARIA DE SOUZA, CPATSA. |
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Título: |
The influence of stock plant fertilization on tissue concentrations of N, P and carbohydrates and the rooting of Prosopis alba cuttings. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Forest Ecology and Management, v. 16, p. 1/4, p. 181-190, oct. 1986. |
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Idioma: |
Inglês |
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Conteúdo: |
Clonal propagation techniques are required for Prosopis due to great variability in biomass productivity, pod productivity, and nitrogen fixation from seed propagated stock. Previous studies identified a decline in the rooting percentage of cuttings taken from stock plants that were grown in the growth chamber and harvested every four weeks. To determine the influence of the mineral nutrient status of the stock plants on the rooting of cuttings, fertilized and nonfertilized Prosopis alba clone B2B50 stock plants were established under 1000 W metal halide lamps in the greenhouse. A complete macro- and micronutrient solution was used. The regrowth was harvested after 4, 8, 12, 16, and 20 weeks, and alternate nodes from each stem were taken for the rooting assay and for N, P, K. Ca, Mg, Fe, Zn an total available carbohydrate evaluation (N=79). The mean rooting percentage for the five harvest cycles was 58% for the fertilized stock plants, and 44% for the nonfertilized stock plants (P=0.087). There was no significant correlation between rooting percentage and leaf carbohydrate (P=0.964), stem carbohydrate (P=0.876) and leaf plus stem phosphorus (P=0.319). The monsignificant correlation between percent rooting and carbohydrates was negative (r=-0.018). However, there was a significant correlation with stem nitrogen and percent rooting (P=0.009) and inverse correlation between sten nitrogen and leaf carbohydrate content (r=-0.353, P=0.001). This suggests that unbalanced fertilizers, rich in nitrogen (...). MenosClonal propagation techniques are required for Prosopis due to great variability in biomass productivity, pod productivity, and nitrogen fixation from seed propagated stock. Previous studies identified a decline in the rooting percentage of cuttings taken from stock plants that were grown in the growth chamber and harvested every four weeks. To determine the influence of the mineral nutrient status of the stock plants on the rooting of cuttings, fertilized and nonfertilized Prosopis alba clone B2B50 stock plants were established under 1000 W metal halide lamps in the greenhouse. A complete macro- and micronutrient solution was used. The regrowth was harvested after 4, 8, 12, 16, and 20 weeks, and alternate nodes from each stem were taken for the rooting assay and for N, P, K. Ca, Mg, Fe, Zn an total available carbohydrate evaluation (N=79). The mean rooting percentage for the five harvest cycles was 58% for the fertilized stock plants, and 44% for the nonfertilized stock plants (P=0.087). There was no significant correlation between rooting percentage and leaf carbohydrate (P=0.964), stem carbohydrate (P=0.876) and leaf plus stem phosphorus (P=0.319). The monsignificant correlation between percent rooting and carbohydrates was negative (r=-0.018). However, there was a significant correlation with stem nitrogen and percent rooting (P=0.009) and inverse correlation between sten nitrogen and leaf carbohydrate content (r=-0.353, P=0.001). This suggests that unbalanced fertilizer... Mostrar Tudo |
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Palavras-Chave: |
Fertilization. |
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Thesagro: |
Algaroba; Enraizamento; Fertilidade; Nitrogênio; Prosopis Alba; Solo. |
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Thesaurus Nal: |
nitrogen; phosphorus; rooting; soil. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/180576/1/Forest-Ecology-Management-v.16-p.181-190-1986.pdf
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Marc: |
LEADER 02270naa a2200265 a 4500
001 1133499
005 2018-07-31
008 1986 bl uuuu u00u1 u #d
100 1 $aSOUZA, S. M. de
245 $aThe influence of stock plant fertilization on tissue concentrations of N, P and carbohydrates and the rooting of Prosopis alba cuttings.
260 $c1986
520 $aClonal propagation techniques are required for Prosopis due to great variability in biomass productivity, pod productivity, and nitrogen fixation from seed propagated stock. Previous studies identified a decline in the rooting percentage of cuttings taken from stock plants that were grown in the growth chamber and harvested every four weeks. To determine the influence of the mineral nutrient status of the stock plants on the rooting of cuttings, fertilized and nonfertilized Prosopis alba clone B2B50 stock plants were established under 1000 W metal halide lamps in the greenhouse. A complete macro- and micronutrient solution was used. The regrowth was harvested after 4, 8, 12, 16, and 20 weeks, and alternate nodes from each stem were taken for the rooting assay and for N, P, K. Ca, Mg, Fe, Zn an total available carbohydrate evaluation (N=79). The mean rooting percentage for the five harvest cycles was 58% for the fertilized stock plants, and 44% for the nonfertilized stock plants (P=0.087). There was no significant correlation between rooting percentage and leaf carbohydrate (P=0.964), stem carbohydrate (P=0.876) and leaf plus stem phosphorus (P=0.319). The monsignificant correlation between percent rooting and carbohydrates was negative (r=-0.018). However, there was a significant correlation with stem nitrogen and percent rooting (P=0.009) and inverse correlation between sten nitrogen and leaf carbohydrate content (r=-0.353, P=0.001). This suggests that unbalanced fertilizers, rich in nitrogen (...).
650 $anitrogen
650 $aphosphorus
650 $arooting
650 $asoil
650 $aAlgaroba
650 $aEnraizamento
650 $aFertilidade
650 $aNitrogênio
650 $aProsopis Alba
650 $aSolo
653 $aFertilization
700 1 $aFELKER, P.
773 $tForest Ecology and Management$gv. 16, p. 1/4, p. 181-190, oct. 1986.
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