| Registro completo |
| Provedor de dados: |
R. Bras. Zootec.
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| País: |
Brazil
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| Título: |
Effect of water stress on the growth of Arachis pintoi plants under different nitrogen levels
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| Autores: |
Sales,Rita Manuele Porto
Fries,Daniela Deitos
Bonomo,Paulo
Pires,Aureliano José Vieira
Campos,Cleide Nascimento
Brito,Paulo Henrique Rodrigues
Pereira,Iracema Souza
Santos,Joelma da Silva
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| Data: |
2013-03-01
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| Ano: |
2013
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| Palavras-chave: |
Legume
Morphogenesis
Root
Water
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| Resumo: |
The objective was to evaluate the growth of Arachis pintoi fertilized with nitrogen and water deficiency conditions. The study was developed in a 4 × 4 factorial arrangement with four nitrogen levels (0, 40, 80 and 120 kg N/ha) and four irrigation levels (25, 50, 75 and 100% of field capacity), in a completely randomized experimental design, with four replications. High doses of N benefited the production of root shoots while the root increased its production at a dose of 40 kg N/ha. The number of green and senescent leaves were influenced by N fertilization and the water regime, where higher doses of N provided greater total number of green leaves (364 leaves/pot) and the limitation of water resulted in a greater number of senescent leaves (78 leaves/pot). Observing the maximum point, the water regime of 90% of field capacity and 120 kg N/ha favored leaf appearance rate of 1.2 leaves/day and less phyllochron (4.6 days/leaf) at 85% of field capacity and 115 kg N/ha. The dose of 120 kg N/ha resulted in ultimate greater width (1.4 cm) and length (2.4 cm) of the leaf at 100% of field capacity. The final length of stolons showed quadratic effect for N, having greatest length (58.1 cm) at 75 kg N/ha and 100% of field capacity.
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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=S1516-35982013000300001
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| Editor: |
Sociedade Brasileira de Zootecnia
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| Relação: |
10.1590/S1516-35982013000300001
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Zootecnia v.42 n.3 2013
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| Direitos: |
info:eu-repo/semantics/openAccess
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