| Registro completo |
| Provedor de dados: |
R. Bras. Zootec.
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| País: |
Brazil
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| Título: |
Structural characteristics of tiller age categories of continuously stocked marandu palisade grass swards fertilized with nitrogen
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| Autores: |
Paiva,Adenilson José
Silva,Sila Carneiro da
Pereira,Lilian Elgalise Techio
Guarda,Vitor Del'Álamo
Pereira,Priscila de Mesquita
Caminha,Fábio Olegário
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| Data: |
2012-01-01
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| Ano: |
2012
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| Palavras-chave: |
Brachiaria brizantha
Demographic profile of tiller population
Morphogenesis
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| Resumo: |
The objective of this experiment was to evaluate the structural characteristics of young, mature and old tillers on continuously stocked marandu palisade grass maintained at 30 cm and fertilized with nitrogen. Treatments corresponded to three nitrogen application rates (150, 300 and 450 kg/ha of N) plus control (no fertilization) and were assigned to experimental units (1,200-m² paddocks) according to a completely randomized block design, with four replications. Measurements were performed during fall/winter 2007 and summer 2008. During summer, young tillers showed longer leaves and shorter stems relative to old tillers. During fall/winter, young and old tillers showed shorter leaves, while mature and old tillers showed longer stems. Tiller age interfered with the number of leaves per tiller mainly through variations in the number of expanding and senescing leaves during both fall/winter and summer. The structural characteristics of individual tillers are affected by plant age, with nitrogen favouring the production of leaf tissue in young tillers during summer.
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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=S1516-35982012000100004
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| Editor: |
Sociedade Brasileira de Zootecnia
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| Relação: |
10.1590/S1516-35982012000100004
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Zootecnia v.41 n.1 2012
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| Direitos: |
info:eu-repo/semantics/openAccess
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