Características morfogênicas do capim-piatã submetido à adubação com efluentes de abatedouro avícola

Orrico, Marco Antônio Previdelli; Orrico, Ana Carolina Amorim; Centurion, Stanley Ribeiro; Sunada, Natália da Silva; Vargas, Fernando Miranda de

doi:10.1590/s0103-84782012005000125

Cited by 14 publications

(13 citation statements)

References 9 publications

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“…Basilisk has, on average, 10 to 11 live leaves per tiller, while cv. Xaraés has approximately 3 to 4 live leaves per tiller (Galzerano, Malheiros, Raposo, Morgado, & Ruggieri, 2013), and cvs Marandu, Paiaguás and Piatã possess, on average, 4 to 5 leaves per tiller (Casagrande et al, 2010;Orrico Júnior, Centurion, Sunada, & Vargas Júnior 2013;Germano, Vendruscolo, Daniel, & Dalbianco 2018). Leaf appearance rate (LAR, cm tiller -1 day -1 ), leaf elongation rate (LER, cm tiller -1 day -1 ), stem elongation rate (SER, cm tiller -1 day -1 ), leaf senescence rate (LSR, cm tiller -1 day -1 ), leaf lifespan (LLS, days), final leaf length (FLL, cm), number of live leaves (NLL), herbage mass (HM, kg ha -1 ), leaf mass (LM, kg ha -1 ), stem mass (SM, kg ha -1 ), dead material mass (DMM, kg ha -1 ), undesirable-plant mass (UPM, kg ha -1 ), leaf:stem ratio (L:S).…”

Section: Morphogenetic and Structural Variablesmentioning

confidence: 99%

Establishment of Brachiaria cultivars in the soil-climatic conditions of the Brazilian semi-arid region

Rodrigues

Difante

Gurgel

et al. 2020

Acta Sci. Anim. Sci.

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This study aimed was the establishment of the genus Brachiaria in the Brazilian semi-arid region. The experiment was conducted from April to June 2016, as a randomized-block experimental design with five treatments and four replicates. Treatments were represented by five Brachiaria cultivars, namely, Marandu, Paiaguás, Piatã, Xaraés and Basilisk. Morphogenetic (leaf appearance rate, leaf elongation rate e stem elongation rate) and structural characteristics (final leaf length, tiller population density e number of leaves per tiller, forage mass, leaf blade mass, stem mass, senescent material mass and leaf:stem ratio) of the forage cultivars were evaluated. Canopy height fitted a linear regression model (P<0,05), with estimated daily increases of 0.50, 0.53, 0.53, 0.54 and 0.56 cm for cvs Basilisk, Marandu, Paiaguás, Piatã and Xaraés, respectively. The number of live leaves in cvs Basilisk and Paiaguás increased linearly (p < 0.05), by 4.3 and 2.8 leaves per tiller, respectively, during the 60-day period. The recommended height at which the growth of Brachiaria cultivars should be interrupted is upon reaching 25 to 35 cm. In the soil-climatic conditions of the Brazilian semi-arid region, the Brachiaria cultivars Basilisk, Marandu, Paiaguás, Piatã and Xaraés are established at 75 days after sowing, which is the recommended time for performing the first harvest or lenient grazing to stimulate tillering.

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Section: Morphogenetic and Structural Variablesmentioning

confidence: 99%

Establishment of Brachiaria cultivars in the soil-climatic conditions of the Brazilian semi-arid region

Rodrigues

Difante

Gurgel

et al. 2020

Acta Sci. Anim. Sci.

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“…Araújo et al (2015) and Carvalho et al (2014) also reported an increase in phyllochron with greater sheath lengths. Plants with lower phyllochron may reach a maximum number of live leaves per tiller faster, allowing more frequent grazing to avoid senescence losses (ORRICO JÚNIOR et al, 2013).…”

Section: Factormentioning

confidence: 99%

Short-term evaluation of Massai grass forage yield and agronomic characteristics and sheep performance under rotational grazing with different pre-grazing canopy heights

Cardoso

Sousa

Ferreira

et al. 2019

SCA

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This study aimed to evaluate the morphogenic, structural, chemical characteristics, and forage yield of Massai grass, as well as the performance of sheep under three pre-grazing canopy heights. Eighteen Dorper x crossbred sheep (12 males and 6 females) were subjected to three pre-grazing canopy heights of Massai grass (45, 35, and 25 cm). Rotational grazing was adopted, with a fixed rest period of 12 days and occupation of four days. Before placing animals in the paddock, stocking rate was estimated to ensure a reduction of about 50% in the initial height. Morphogenic and chemical characteristics of forage were evaluated, as well as animal intake and performance. Pasture managed at 25 cm height induced reductions in stem and sheath sizes, and phyllochron but an increased leaf: stem ratio. However, the pasture cut at 35 cm above ground promoted an increase in total dry mass and foliar leaf productions, in addition to greater forage availability and daily accumulation. Yet, pastures with a height of 45 cm had a higher percentage of stem and senescent material, decreasing leaf intake by animals. Among the studied heights, 35 cm is the most suitable for Massai grass, when used for rearing sheep for meat production under pasture conditions in the northern Tocantins. This is because this management provided a greater availability of good quality forage and thereby increasing weight gains per area in animals.

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“…Isso ocorre devido à forte interação do metabolismo do nitrogênio com o do carbono, uma vez que a fotossíntese fornece direta ou indiretamente a energia necessária para a assimilação de nitrogênio pelas plantas. A resposta real durante a fase linear no aumento de produção de massa seca depende de vários fatores, como o fornecimento de nitrogênio, condições climáticas, disponibilidade de água e suprimento de outros nutrientes (Orrico Junior et al, 2013).…”

Section: Resultsunclassified

Características agronômicas do capim BRS Piatã submetido a doses de nitrogênio e cortes

Lima¹,

Vendruscolo

Dalbianco³

2021

Pubvet

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O objetivo deste trabalho foi avaliar diferentes doses de nitrogênio e cortes na produção de massa seca e outras características agronômicas de Brachiaria brizantha cv. BRS Piatã, no segundo ano de produção. O experimento foi conduzido na área experimental da Universidade do Estado de Mato Grosso, no município de Tangará da Serra. O delineamento experimental utilizado foi em blocos casualizados, com seis tratamentos, que foram as diferentes doses de nitrogênio (0, 50, 100, 150, 200 e 250 kg ha-1 de N), em quatro repetições. Cada dose de nitrogênio foi parcelada e aplicada em quatro vezes, sempre após cada corte da forragem, com intervalo aproximado de 28 dias entre os cortes. A maioria das variáveis avaliadas apresentaram diferença significativa com as diferentes doses de nitrogênio e algumas variáveis apresentaram resposta linear positiva em relação à aplicação de nitrogênio, indicando que a dose poderia ser superior a 250 kg ha-1 de N. O nitrogênio influencia positivamente altura do dossel forrageiro, densidade populacional de perfilhos, número de folhas por perfilho, massa seca por perfilho, massa verde e seca total por hectare, massa seca de folhas e massa seca de colmos da B. brizantha cv. BRS Piatã.

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Características morfogênicas do capim-piatã submetido à adubação com efluentes de abatedouro avícola

Abstract: IICaracterísticas morfogênicas do capim-piatã submetido à adubação com efluentes de abatedouro avícola

Cited by 14 publications

References 9 publications

Establishment of Brachiaria cultivars in the soil-climatic conditions of the Brazilian semi-arid region

Establishment of Brachiaria cultivars in the soil-climatic conditions of the Brazilian semi-arid region

Short-term evaluation of Massai grass forage yield and agronomic characteristics and sheep performance under rotational grazing with different pre-grazing canopy heights

Características agronômicas do capim BRS Piatã submetido a doses de nitrogênio e cortes

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