2009
DOI: 10.1007/s11258-009-9647-7
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Tillering dynamics in palisadegrass swards continuously stocked by cattle

Abstract: Plant communities on pastures adapt to varying frequencies and severities of defoliation through mechanisms capable of ensuring their longevity and photosynthetic efficiency. The objective of this experiment was to evaluate tiller population density, demographic patterns of tillering and population stability of palisadegrass swards subjected to four grazing intensities. Treatments corresponded to four sward steady state conditions (sward heights of 10, 20, 30 and 40 cm) generated by continuous stocking. Measur… Show more

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Cited by 78 publications
(115 citation statements)
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“…The amount of forage mass affects tillering (Langer, 1956), in a way that after severe defoliation occurs after inhibition of tillering due to low availability of organic reserves in the plant (Matthew, 1992) (Table 1). This variation coincides with changes in environmental conditions throughout the year (Difante et al, 2008;Pena et al, 2009;Sbrissia et al, 2010), since, in the processes of formation, development, growth and senescence of tillers are influenced by weather conditions (Mazzanti et al, 1994). It is also worth noting that the adoption of a variable postgrazing height throughout the year (50-30 cm) resulted in higher appearance rate of basal tillers in the summer of 2007 (Table 1).…”
Section: Resultssupporting
confidence: 61%
See 1 more Smart Citation
“…The amount of forage mass affects tillering (Langer, 1956), in a way that after severe defoliation occurs after inhibition of tillering due to low availability of organic reserves in the plant (Matthew, 1992) (Table 1). This variation coincides with changes in environmental conditions throughout the year (Difante et al, 2008;Pena et al, 2009;Sbrissia et al, 2010), since, in the processes of formation, development, growth and senescence of tillers are influenced by weather conditions (Mazzanti et al, 1994). It is also worth noting that the adoption of a variable postgrazing height throughout the year (50-30 cm) resulted in higher appearance rate of basal tillers in the summer of 2007 (Table 1).…”
Section: Resultssupporting
confidence: 61%
“…The quantity and quality of light incidence, varying between the year seasons, may act on the activation of buds and, therefore, on the production of new tillers (Deregibus et al, 1983;Casal et al, 1985), promoting differences in tiller density in different seasons (Difante et al, 2008;Sbrissia et al, 2010). The intensity of the grazing applied to pastures also alters the quantity and quality of light incidence reaching the interior of the canopy after defoliation, inflicting variations in tiller density.…”
Section: Introductionmentioning
confidence: 99%
“…This compensation contributes to maintain perenniality and, in part, the stability of the tiller population SBRISSIA et al, 2010;PORTELA et al, 2011). In addition, the increase in live tillers in winter is a way of conserving resources (nutrients), which is important in dry soil, making it difficult for the plant to absorb nutrients.…”
Section: Resultsmentioning
confidence: 99%
“…Da mesma forma, em lotação contínua, estudos mostram que pastos manejados mais baixos apresentam alta renovação de plantas, o que faz com que a idade média dos perfilhos seja também menor (sBrissia et al, 2010), o que pode acelerar as taxas morfogênicas observadas (Paiva, et al, 2011). Entretanto, estas taxas aceleradas podem não conferir maior produção do pasto, pois as plantas neste ambiente tem tamanho reduzido (sBrissia e siLva, 2008).…”
Section: Idade Da Plantaunclassified