| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Root system distribution and yield of 'Conilon' coffee propagated by seeds or cuttings
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| Autores: |
Partelli,Fábio Luiz
Covre,André Monzoli
Oliveira,Marcos Goes
Alexandre,Rodrigo Sobreira
Vitória,Edney Leandro da
Silva,Marcelo Barreto da
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| Data: |
2014-05-01
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| Ano: |
2014
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| Palavras-chave: |
Coffea canephora
Root diameter
Root length
Root volume
Vegetative propagation
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| Resumo: |
The objective of this work was to evaluate the root system distribution and the yield of 'Conilon' coffee (Coffea canephora) propagated by seeds or cuttings. The experiment was carried out with 2x1 m spacing, in an Oxisol with sandy clay loam texture. A randomized complete block design was used, following a 2x9x6 factorial arrangement, with two propagation methods (seeds and cuttings), nine sampling spacings (0.15, 0.30, 0.45, 0.60, 0.75, and 0.90 m between rows, and 0.15, 0.30, and 0.45 between plants within rows), six soil depths (0.10-0.20, 0.20-0.30, 0.30-0.40, 0.40-0.50, and 0.50-0.60 m), and six replicates. Soil cores (27 cm3) with roots were taken from 12 experimental units, 146 months after planting. The surface area of the root system and root diameter, length, and volume were assessed for 13 years and, then, correlated with grain yield. The highest fine root concentration occurred at the superficial soil layers. The variables used to characterize the root system did not differ between propagation methods. Moreover, no differences were observed for net photosynthetic CO2 assimilation rate, stomatal conductance, internal CO2 concentrations, and instantaneous water-use efficiency in the leaves. Cutting-propagated plants were more productive than seed-propagated ones.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000500349
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2014000500004
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.49 n.5 2014
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| Direitos: |
info:eu-repo/semantics/openAccess
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