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Revista Brasileira de Zootecnia
Article . 2011
Data sources: DOAJ
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Characterization of tropical forage grass development pattern through the morphogenetic and structural characteristics Caracterização do padrão de desenvolvimento de gramíneas forrageiras tropicais por meio das características morfogênicas e estruturais

Authors: Carlindo Santos Rodrigues; Domicio do Nascimento Júnior; Sila Carneiro da Silva; Márcia Cristina Teixeira da Silveira; Braulio Maia de Lana Sousa; Edenio Detmann;

Characterization of tropical forage grass development pattern through the morphogenetic and structural characteristics Caracterização do padrão de desenvolvimento de gramíneas forrageiras tropicais por meio das características morfogênicas e estruturais

Abstract

An experiment was carried out with the objective to evaluate growth pattern of tropical forage grass under free growth by using morphogenetic and structural characteristics with the expectation of using this study for forage grass evaluation protocol. The experimental area was established with two cultivars of Panicum maximum Jacq. (Mombaca and Aruana), a hybrid cultivar of P. maximum Jacq. and P. Infestum BRA-7102 (Massai), two cultivars of Brachiaria brizantha (A. Rich.) Stapf (Marandu and Xaraes) and Molasses grass (Melinis minutiflora Beauv.) and jaragua grass (Hyparrhenia rufa (Nees) Stapf.). The grasses were planted in 1.0-m² experimental units with 24 plants arranged in a completely randomized block design with three replications. Growth pattern of the grasses was evaluated through mass development, tiller mortality, development stage and leaf longevity. Development patterns differed significantly among groups of grasses, indicating that the same available resources can be used in different manners by grasses from the same genus and/or species.Um experimento foi conduzido com o objetivo de avaliar o padrão de desenvolvimento de gramíneas forrageiras tropicais em crescimento livre por meio das características morfogênicas e estruturais, com expectativa de uso desse estudo no protocolo de avaliação de gramíneas forrageiras. A área experimental foi estabelecida com dois cultivares de Panicum maximum Jacq. (Mombaça e Aruana), um cultivar híbrido de P. maximum Jacq. e P. infestum BRA-7102 (Massai), dois cultivares de Brachiaria brizantha (A. Rich.) Stapf (Marandu e Xaraés) e com os capins gordura (Melinis minutiflora Beauv.) e jaraguá (Hyparrhenia rufa (Nees) Stapf.). As gramíneas foram plantadas em unidades experimentais de 1,0 m² com 24 plantas arranjadas em delineamento de blocos completos casualizados com três repetições. O padrão de desenvolvimento das gramíneas foi avaliado por meio do desenvolvimento de massa, da mortalidade de perfilhos, do estádio de desenvolvimento e da longevidade foliar. Os padrões de desenvolvimento diferiram significativamente entre os grupos de gramíneas, e isso indica que os mesmos recursos disponíveis podem ser usados de maneira diferente por gramíneas de mesmo gênero e/ou espécie.

Keywords

análise multivariada, multivariate analysis, avaliação de gramíneas, ecophysiology, morfogênese, ecofisiologia, morphogenesis, SF1-1100, grass evaluation, Animal culture

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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