Morphological characteristics and proportion of leaf blade tissues of elephant grass clones under sheep grazing

Viana, Bruno Leal; Mello, Alexandre Carneiro Leão de; Guim, Adriana; Lira, Mário de Andrade; Júnior, José Carlos Batista Dubeux; Santos, Mércia Virgínia Ferreira dos; Cunha, Márcio Vieira da

doi:10.1590/s0100-204x2018001100009

Cited by 16 publications

(21 citation statements)

References 22 publications

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“…This fast elongation has a significant influence on the high forage productivity of these genotypes (PEREIRA et al, 2017). In this sense, VIANA et al (2018) found average internode lengths of 10.6 and 4.7 cm from 'Elephant B' and 'Taiwan A-146 2.37', which are tall and short-sized genotypes, respectively. Conversely, VIANA et al (2015) did observe greater forage mass in 'Elephant B' pastures (3,080 kg ha -1 ) compared to pastures of 'Taiwan A-146 2.37', for which the average forage mass was 2,180 kg ha -1 .…”

Section: Tall-sized Elephant Grassmentioning

confidence: 96%

“…Currently, size is an elephant grass trait that has been stood out in scientific studies (CUNHA et al, 2011;PEREIRA et al, 2017;VIANA et al, 2018). The tall genotypes are widely grown in cut-and-carry Silva et al systems due to their high forage productivity, which is related to characteristics including stem elongation and proportion in the harvested forage (VIANA et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Tall and short-sized elephant grass genotypes: morphophysiological aspects cut-and-carry, and grazing management

et al. 2021

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Elephant grass (pennisetum purpureum schum.) has been grown only in cut-and-carry systems for a long time. However, interest in its grazing management has been increasing because of the selection of short-sized genotypes, which have gained new relevance since 1988 with the registration of ‘mott’ grass. in this sense, tall and short-sized genotypes present important differences in morphology, quality and productivity; although, environmental factors also exert influence on these aspects. This review aimed to approach how the elephant grass size can influence the morphophysiological characteristics, management decisions, and exploitation of this species. the morphophysiological aspects and the elephant grass sizes are important to direct their utilization in the different production systems. The research results from previous decades suggest that the particularities of the tall-sized genotypes, such as great forage accumulation, high organic reserves content, and stem elongation, favor their management in cut-and-carry systems and industrial sectors. Conversely, the short-sized elephant grass genotypes present aspects as higher leaf proportion in the harvested forage, leaf/stem ratio, and tillering. these factors facilitate their exploitation in grazing systems.

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Section: Tall-sized Elephant Grassmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Tall and short-sized elephant grass genotypes: morphophysiological aspects cut-and-carry, and grazing management

et al. 2021

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“…Segundo Schmitt et al (10) , quando o capim-elefante é manejado com menos que 90 cm, há vantagens na produção de forragem e no controle da estrutura do dossel, pois os bovinos não conseguem rebaixar mais do que metade dessa altura. Já segundo Viana et al (11) , a altura ideal do capim-elefante para o pastejo de ovinos é de 0,72 m, obtidos nos clones Mott e Taiwan A-164 2.114, quando manejados com 32 dias de rebrotação. As alturas observadas mostram que nenhum dos clones avaliados são adequados ao pastejo.…”

Section: Resultsunclassified

Características Estruturais E Produtivas Em Híbridos Intraespecíficos E Interespecíficos De Capim-Elefante

et al. 2019

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ResumoObjetivou-se avaliar a estrutura e a produção de forragem em híbridos de capim-elefante manejados sob corte. Utilizaram-se como tratamentos 24 clones de capim-elefante provenientes da Embrapa Gado de Leite e o Cameroom como testemunha. Os capins foram cortados rentes ao solo, a cada 60 dias. Os parâmetros avaliados foram: produção e teor de matéria seca, número de perfilhos basais, número de folhas por perfilho, altura da planta, diâmetro do colmo. A maior altura das plantas foi observada no clone CNPGL 00-103-1. O grupo com maior número de perfilhos teve três clones e média de 39,38 perfilhos m -2 . No grupo dos clones CNPGL 00-103-1, CNPGL 93-25-3, CNPGL 00-16-1 e CNPGL 00-90-3 foram observados os maiores teores de matéria seca (22,7% de MS). As maiores massas de forragem, de lâmina foliar e de colmo foram observadas no clone CNPGL 00-214, 15852 e 6195 kg ha -1 de MS respectivamente. A maior relação lâmina foliar/colmo foi do clone CNPGL 00-201-1 e apenas neste a massa de lâmina foliar foi superior à de colmo. O clone CNPGL 00-214 mostrou-se mais produtivo, com alta capacidade de perfilhamento e de acúmulo de forragem. Palavras-chave: Colmo; lâmina foliar; perfilho; Pennisetum sp. AbstractThe objective of this study was to evaluate the structure and forage production of hybrids of elephantgrass managed under cut. Twenty-four clones of elephant-grass from Embrapa dairy cattle were used as treatments, and Cameroom as a control. The grasses were cut close to the ground, every 60 days. The parameters evaluated were yield and dry matter content, number of basal tillers, number of leaves per tiller, plant height, stem diameter. The highest height of the plants was observed in clone CNPGL 00-103-1. The group with the highest number of tillers had three clones and a mean of 39.38 tiller m -EMERENCIANO NETO, J.V. et al.Cienc. anim. bras., Goiânia, v.20, 1-11, e-46788, 2019 2 . In the group of clones CNPGL 00-103-1, CNPGL 93-25-3, CNPGL 00-16-1 and CNPGL 00-90-3 the highest dry matter contents (22.7% DM) were observed. The highest masses of forage, leaf blade and stem were observed in clone CNPGL 00-214, 15852 and 6195 kg ha -1 DM, respectively. The highest leaf blade / stem ratio was of the CNPGL 00-201-1 clone, and only in this did the leaf blade mass exceed that of the stem. Clone CNPGL 00-214 showed to be more productive, with high tillering capacity and forage accumulation.

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“…Seven warm-season grasses were evaluated in this trial: (Viana et al, 2018), Pennisetum purpureum (Schumach.) cv.…”

Section: Site and Experimental Characterizationmentioning

confidence: 99%

Correlations between plant height and light interception in grasses by different light meter devices

Coêlho

Santos

Cunha

et al. 2020

Agraria

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This study tested if the type of light meter device can influence the relationships between plant canopy height with light interception (LI) and leaf area index (LAI), in different types of warm-season grasses. LI and LAI were measured using Digital Plant Canopy Imager model 120 (CI-120) (CID Bio-science ®) and Plant Canopy Analyzer LAI-2000 (LI-COR ®). Seven warm-season grasses were evaluated Urochloa decumbens (

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Morphological characteristics and proportion of leaf blade tissues of elephant grass clones under sheep grazing

Cited by 16 publications

References 22 publications

Tall and short-sized elephant grass genotypes: morphophysiological aspects cut-and-carry, and grazing management

Tall and short-sized elephant grass genotypes: morphophysiological aspects cut-and-carry, and grazing management

Características Estruturais E Produtivas Em Híbridos Intraespecíficos E Interespecíficos De Capim-Elefante

Correlations between plant height and light interception in grasses by different light meter devices

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