Morphogenesis in guinea grass pastures under rotational grazing strategies

dc.creatorMontagner, Denise Baptaglin
dc.creatorNascimento Júnior, Domicio do
dc.creatorSousa, Braulio Maia de Lana
dc.creatorVilela, Hélio Henrique
dc.creatorSilveira, Márcia Cristina Teixeira da
dc.creatorEuclides, Valéria Pacheco Batista
dc.creatorSilva, Sila Carneiro da
dc.creatorCarloto, Marciele Neves
dc.date2017-12-13T16:11:43Z
dc.date2017-12-13T16:11:43Z
dc.date2011-10-24
dc.date.accessioned2023-09-27T21:44:13Z
dc.date.available2023-09-27T21:44:13Z
dc.identifier1806-9290
dc.identifierhttp://dx.doi.org/10.1590/S1516-35982012000400008
dc.identifierhttp://www.locus.ufv.br/handle/123456789/14948
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8965375
dc.descriptionThis study was conducted in order to evaluate the morphogenetic and structural characteristics of guinea grass cv. Mombasa under three post-grazing heights (intense - 30 cm, lenient - 50 cm and variable - 50 in spring-summer and 30 cm in autumn-winter) when sward light interception reached 95% during regrowth. Post-grazing heights were allocated to experimental units (0.25 ha) in a completely randomized block design with three replications. Post-grazing heights affected only leaf elongation rate and the number of live leaves. Pastures managed with variable post-grazing height showed higher leaf elongation rate in the summer of 2007. This management strategy also resulted in a higher number of live leaves. During the spring of 2006, plants showed lower leaf elongation rate, leaf appearance rate and number of live leaves, and greater phyllochron and leaf lifespan. In contrast, during the summer of 2007, the leaf appearance rate, leaf elongation rate, number of live leaves, and final leaf length were greater while phyllochron, stem elongation rate, and leaf senescence rate were lower. The management of the guinea grass cv. Mombasa with intense or variable post-grazing height throughout the year seems to represent an interesting management target, in terms of leaf appearance rate and number of live leaves.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherRevista Brasileira de Zootecnia
dc.relationv. 41, n. 4, p. 883-888, Apr. 2012
dc.rightsOpen Access
dc.subjectPost-grazing height
dc.subjectEcophysiology
dc.subjectGrazing management
dc.subjectLight interception
dc.subjectPanicum maximum cv. Mombasa
dc.titleMorphogenesis in guinea grass pastures under rotational grazing strategies
dc.typeArtigo


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