Marandu palisade grass management strategies at the beginning of the deferment period and effects on tillering

Santos, Manoel Eduardo Rozalino; Ávila, A. B.; Carvalho, Angélica Nunes de; Rocha, Gabriel de Oliveira; Segatto, Bruno Nascimento; Vasconcelos, Kathleen Alves; Pereira, Rayne Souza

doi:10.5433/1679-0359.2018v39n4p1617

Cited by 5 publications

(8 citation statements)

References 22 publications

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“…Possibly, the young tillers that emerged in the early spring were developed during the grazing period, becoming older, especially in the short/mown pastures during late winter. The old tiller shows a worse morphological composition than the young tiller, which is conformity with the results of Santos et al (2018). These authors observed that the weight and percentage of live stems from old tillers were bigger in relation to young tillers; the percentage of live leaf lamina was bigger in young tiller (52.6%) and lower in old tiller (21.3%); and the percentage of dead leaf lamina was bigger in the old than in young tillers.…”

Section: Discussionsupporting

confidence: 85%

Mowing and lowering the marandu palisadegrass sward height at late winter improve the sward structure

et al. 2020

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The structure of the sward is important because it influences the responses of plants and animals in grazing conditions. The objective with this work was to evaluate the structural characteristics of the Marandu palisade grass pasture (Brachiaria brizantha syn. Urochloa brizantha) during spring and summer, depending on the condition of the sward at the end of winter. Four grazing conditions at the end of winter were evaluated: short (24.1 cm), short (25.2 cm)/mown (8 cm), tall (49.0 cm) and tall (50.0 cm)/mown (8 cm). The foliar area index was lower in the tall pasture than in the tall/mown pasture. The mass and the volumetric density of dead stem were higher in the tall pasture, intermediate in the short pasture, and lower in mowed pastures. At the beginning of the grazing period, the live stem mass was higher in the tall pasture. At the beginning and middle of the grazing period, the volumetric density of dead leaf lamina was lower in mowed pastures. At the beginning of the pasture period, the short pasture had a higher tiller number (TN). In the middle of the grazing period, the short and short/mown pastures had higher TN. At the end of the pasture period, the lowest TN value occurred in the tall pasture. The tall pasture at the end of winter presents an unfavorable structure to the animal in grazing, while the mowing and reduction in the height of the marandu palisade grass improves the structure of the sward in spring and summer.

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Section: Discussionsupporting

confidence: 85%

Mowing and lowering the marandu palisadegrass sward height at late winter improve the sward structure

et al. 2020

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“…It is noteworthy that the structural characteristics of old tillers are generally worse compared to those of young and mature tillers, as observed by Barbosa et al (2012) with guinea grass cv. Tanzania and Santos et al (2018) with marandu palisadegrass.…”

Section: Discussionmentioning

confidence: 99%

“…Variations of appearance and mortality of tillers during spring and summer, caused by the structure of late winter grasses, can alter the relative participation of tillers of different ages in the pasture. This has relevant consequences because young tillers have greater growth rates (MONTAGNER et al, 2011;BARBOSA et al, 2012), better structural characteristics (SANTOS et al, 2018) and nutritional value (SANTOS et al, 2006) and also, are more responsive to growth factors (PAIVA et al, 2011), when compared to old tillers.…”

Section: Introductionmentioning

confidence: 99%

Number and morphology of tiller age groups during summer in Marandu palisadegrass pastures previously used under deferred grazing

Santos

Carvalho

et al. 2020

Biosci. J.

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The relative contribution of young, mature and old tillers in the canopy influences the production and structure of the pasture. The objective with this work was to evaluate the balance between tiller appearance and tiller death (BAL) during spring and early summer, the morphology and percentages of young, mature and old tillers in Brachiaria brizantha cv. Marandu (marandu palisadegrass) with three conditions in late winter: short (24.1 cm), tall (49.0 cm) and tall (50.0 cm)/mown (8 cm). Tall and tall/mown pastures presented higher BAL in September and October, respectively. In January, BAL was higher in short and tall/mown pastures than in tall pasture. The tiller number was higher in short pasture, intermediate in tall/mown pasture and lower in tall pasture. The percentage of old tillers was higher in short and tall pastures compared to tall/mown pasture. The percentage of live leaf lamina reduced, while the percentage of dead leaf lamina increased with tiller age. Mowing of the tall marandu palisadegrass pasture in late winter increases the renewal of tillers in the spring and decreases the percentage of old tillers in the summer. The old tillers present worse morphology than young tillers.

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“…The patterns of emergence and survival of tillers result in variations in the percentage of young, mature and old tillers in the pasture (M. E. R. Santos et al, 2018;Alves et al, 2019; M. E. R. Santos et al, 2020;A. N. D. Carvalho et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes

Santos

Carvalho

Paiva

et al. 2022

Semina: Ciênc. Agrár.

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Based on the hypothesis that climate and fertilizers influence the proportion of tiller age categories in the canopy and, consequently, in herbage accumulation, the objective of this study was to determine the population density and the contribution of tiller age categories for herbage accumulation of Urochloa brizantha cv. Marandu during the year and in response to phosphate and nitrogen fertilization. The treatments consisted of two fertilization strategies: low and high fertilization and three tiller ages (young, mature and old), evaluated at four times of the year: winter, early and late spring, and summer. The total number of tillers and the proportion of young tillers were higher in late spring and summer. The growth and herbage accumulation rates showed a typical seasonal pattern and were higher in the canopy under high fertilization. Old tillers contributed more to control the total stem growth rate, as well as the canopy senescence rate. The highest percentage of young tillers is related to the high herbage accumulation in the Marandu palisadegrass canopy.

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Marandu palisade grass management strategies at the beginning of the deferment period and effects on tillering

Cited by 5 publications

References 22 publications

Mowing and lowering the marandu palisadegrass sward height at late winter improve the sward structure

Mowing and lowering the marandu palisadegrass sward height at late winter improve the sward structure

Number and morphology of tiller age groups during summer in Marandu palisadegrass pastures previously used under deferred grazing

Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes

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