Desempenho Do Capim Tanzânia Irrigado Com Água Salobra Aplicada via Aspersão E Gotejamento

Praxedes, Saulo Samuel Carneiro; Júnior, Manoel Januário da Silva; Medeiros, José Francismar de; Silva, José Leôncio de Almeida; Silva, Francisco Valfisio da; Targino, Ana Jaqueline de Oliveira

doi:10.15809/irriga.2019v24n2p236-253

Cited by 4 publications

(10 citation statements)

References 5 publications

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“…Lima et al (2018) described M. maximus as the most productive tropical forage propagated by seeds, being used worldwide due to its high productivity potential and forage quality, thus making room for study under salt stress conditions. Praxedes et al (2019), when evaluating the performance of the Tanzânia cultivar irrigated with saline water, did not observe tolerance of the cultivar to salinity above 2.8 dS/m, classifying it as moderately sensitive to irrigation water salinity. Salomón and Samudio (2015) found a reduction in germination speed and plant height of the Tanzânia and Mombaça cultivars with increasing salinity levels from 0.0 dS/m to 22.3 dS/m.…”

Section: Introductionmentioning

confidence: 77%

“…Similar results were found by Salomón and Samudio (2015), who observed a reduction of 15.0 and 10.0% in the germination percentage of the Mombaça and Tanzânia cultivars, respectively, under different levels of salt stress (ranging from 0.0 to 8.6 mS/cm) in irrigation water. Praxedes et al (2019) observed a decrease of 32% in the height of the Tanzânia cultivar for electrical conductivity of water (ECw) equal to 2.80 dS/m. The authors also observed a linear reduction in fresh mass with increasing salinity, at a ratio of 22.26 g for each unit increase in ECw, also classifying the cultivar as moderately sensitive to salinity.…”

Section: Resultsmentioning

confidence: 98%

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EMERGENCE OF Megathyrsus maximus SEEDLINGS GROWN UNDER SALT STRESS

Lima,

Castro,

Pimentel

et al. 2024

Rev. Agric. Neotrop.

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The aim was to evaluate the effect of salt stress on the percentage and speed of emergence of seedlings in forage cultivars of the species Megathyrsus maximus (Jacq.). The study was conducted in a completely randomized design in a 3×4 factorial scheme, with three forage cultivars (Mombaça, Tanzânia and MG12-Paredão) and four salinity levels (0, 1.5, 3.0, and 4.5 dS/m), with six replications. Stress was induced by irrigating the pots with saline solution. The percentage of seedling emergence was evaluated at seven days after sowing (DAS), and the emergence speed index (ESI) until 15 DAS was evaluated. Analysis of variance for the percentage of emergence and ESI showed significant effect (P<0.01) for cultivars and salt stress and non-significant effect for the interaction between factors. The percentage of emergence was higher in the Mombaça cultivar (39.4%) and did not differ between the Tanzânia (30.5%) and MG12-Paredão (25.0%) cultivars. ESI was similar between the Mombaça and Tanzânia cultivars and higher than the MG12-Paredão cultivar. Salt stress reduces the percentage and speed of seedling emergence of the Mombaça, Tanzânia and MG12-Paredão cultivars of Megathyrsus maximus. The Mombaça, Tanzânia and MG12-Paredão cultivars show the same behavior regarding seedling emergence performance when subjected to different levels of salt stress.

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Section: Introductionmentioning

confidence: 77%

Section: Resultsmentioning

confidence: 98%

EMERGENCE OF Megathyrsus maximus SEEDLINGS GROWN UNDER SALT STRESS

Lima,

Castro,

Pimentel

et al. 2024

Rev. Agric. Neotrop.

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“…Researchers attribute the reduced growth of plants irrigated with fi sh farming effl uent to the negative eff ects of the high salinity of the effl uents, since high salinity causes osmotic stress. As it reduces growth, it decreases the photosynthesis of plants due to the diff usion of CO 2 and changes in photosynthetic metabolism, such as oxidative stress, directly infl uencing growth (PRAXEDES et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

“…For being considered an essential food for consumption by the herd, pasture has been constantly improved in relation to seed selection, increased production and resistance to pests, especially in the arid and semi-arid regions of the world (GUILLAUME et al, 2021). Arid and semi-arid regions, due to the irregular distribution of rainfall, have concentrated pastures with lower yield and quality (PRAXEDES et al, 2019), making the management of water resources available and essential to reduce the problems caused by water scarcity and the consequent limitation in the yield of forage species (ROCHA FILHO et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Panicum maximum cultivars irrigated with fish farming effluent

Ferreira,

Gurgel,

Dias

et al. 2024

RCA

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Effluent from fish farming with saline water is a source of water, also rich in organic matter and nutrients, that can be used in irrigation of cultivated plants and even fully or partially replace mineral fertilization. The objective was to evaluate the growth, biomass production and quality of P. maximum cultivars fertigated with fish farming effluent in a greenhouse experiment, using a randomized block design with eight replicates. Treatments were arranged in a split-split-plot scheme, with three irrigation managements in the plot (irrigation with public-supply water, irrigation with public-supply water + conventional fertilization, and irrigation with fi sh farming effl uent), three cultivars of P. maximum (Tanzania, Mombasa, and Massai) in the sub-plot, and four cutting times in the sub-sub-plot (45, 90, 135, and 180 days after sowing). Plant height, number of tillers, production of fresh biomass, neutral detergent fiber, acid detergent fiber, ether extract, crude protein, dry matter, and mineral matter contents were analyzed. The highest growth, production, and quality of P. maximum grass occurs when irrigated with public-supply water and under conventional NPK fertilization. Fertigation with fish farming effluent reduces the growth and production of P. maximum grass, but allows obtaining better quality forage. It is possible to irrigate P. maximum grass using fish farming effluent with satisfactory yields. The growth of cv. Massai was more sensitive to irrigation with fish farming effluent than those of the cultivars Tanzania and Mombasa.

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“…A produção do capim Tanzânia pode variar conforme a composição do solo, espaçamento na qual foi plantado, altura do corte, lâmina de irrigação, entre outros. É comum encontrar, na literatura, produções variando de 2,16 a 3,42 t de MS.ha -1 (Macedo et al, 2017), até de 6,3 t de MS.ha -1 (Praxedes et al, 2019), utilizando irrigação. Legenda: kg = Quilograma; ha = hectare; UA = Unidade animal; 1 Com base na MS; Valores seguidos de mesma letra na linha, não diferem entre si pelo teste Tukey a 5%.…”

Section: Resultsunclassified

Agroecological management of Tanzania Grass under grazing of crossbred goats in the Brazilian semi-arid

Soares

Maciel

et al. 2023

Rev. Bras. de Agroecologia

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Objetivou-se avaliar a produtividade e a composição química do capim Tanzânia e a ingestão de matéria seca e dos nutrientes por cabras mestiças sob pastejo em manejo agroecológico no Semiárido brasileiro. A pastagem de Panicum maximun cv. Tanzânia, sob manejo agroecológico, foi dividida em 16 piquetes, com 30 dias de descanso e 2 de ocupação por 15 cabras mestiças de ½ Boer e ½ Saanen. Foi observada variação na composição química pelos teores de FDA (38,49 a 40,67%) nos meses de maio a novembro, respectivamente. Aumento (P<0,05) no consumo de matéria seca (2,04; 1,84; 1,80 kg.dia-1) também foi identificado para os meses de maio, julho e setembro, respectivamente. O manejo agroecológico foi capaz de manter em níveis adequados a produtividade e a qualidade da pastagem de capim Tanzânia. Promoveu também o uso eficiente da forragem com taxa de lotação satisfatória, proporcionando o consumo de matéria seca adequado para manutenção das cabras mestiças nas condições semiáridas.

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Desempenho Do Capim Tanzânia Irrigado Com Água Salobra Aplicada via Aspersão E Gotejamento

Cited by 4 publications

References 5 publications

EMERGENCE OF Megathyrsus maximus SEEDLINGS GROWN UNDER SALT STRESS

EMERGENCE OF Megathyrsus maximus SEEDLINGS GROWN UNDER SALT STRESS

Panicum maximum cultivars irrigated with fish farming effluent

Agroecological management of Tanzania Grass under grazing of crossbred goats in the Brazilian semi-arid

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