Comportamento de Andropogon gayanus cv. ‘planaltina’ e Panicum maximum cv. ‘tanzânia’ sob sombreamento

Oliveira, Fabiana Lopes Ramos de; Mota, Verônica Alves; Ramos, Maira Soares; Santos, L.D. Tuffi; Oliveira, Neide Judith Faria de; Geraseev, Luciana Castro

doi:10.1590/s0103-84782013000200026

Cited by 10 publications

(10 citation statements)

References 13 publications

(8 reference statements)

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“…According to Castro et al (2009), plants submitted to less light intensity levels have more compact leaves with reduced volume, influencing directly fresh mass value. Oliveira et al (2013) evaluating behaviour of Andropogon gayanus and Panicum maximum under shading found at 50% of shading fresh mass accumulation was lower than the 30%, as verified at present study ( Figure 3). Comparing the presence or absence of shading it was possible to observe for these species that shading favoured fresh mass accumulation, being different from substrates S1, S2 and S3 and similar to observed at substrates S4 and S5 of present work (Figure 3).…”

Section: Resultssupporting

confidence: 87%

Luminosity levels and substrates composition on Bermuda Grass development

Amaral¹,

Pagliarini

Haga

et al. 2019

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Turfgrass is a fundamental part in sports fields’ composition. Some aspects should be taken into account in the choosing species process, such as turfgrass use (trampling tolerance), turfgrass management, physical-chemical soil conditions and shade tolerance. With accomplishment of sporting events in Brazil, there was requirement for football arenas reform and modernization. Among architecture alterations, coverings implantation was noticed, resulting luminosity reduction affecting turfgrass development. Therefore, the objective of this work was to evaluate the influence of luminosity and substrates on Bermuda grass (Cynodon dactylon x C. transvaalensis) development. The experiment was conducted in a 5 x 4 factorial scheme (substrates x luminosities), in completely randomized design with 20 treatments and 3 replicates. The substrates were: S1 = Soil, S2 = Soil + sand (2:1), S3 = Soil + organic matter (1:1), S4 = Soil + organic matter + sand (2:1:1) and S5 = organic matter + sand (3:1), in four luminosity conditions: full sun, 30%, 50% and 80% of shading for six months. We evaluated substrates fertility composition, solar radiation, grass height and fresh and dry mass. Shading interfered on Bermuda grass development, which tolerates intermediate shading (30% and 50%). Substrates containing the highest levels of organic matter submitted to shading had impaired turfgrass performance.

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Section: Resultssupporting

confidence: 87%

Luminosity levels and substrates composition on Bermuda Grass development

Amaral¹,

Pagliarini

Haga

et al. 2019

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“…The results observed here are in accordance with those found in the literature, which demonstrated a greater adaptation of Tanzania grass to environments with light restriction. Oliveira et al (2013) observed a higher dry and fresh matter production for Tanzania grass under shading when compared to the full sun, showing a good adaptation of this grass to low light conditions.…”

Section: Resultsmentioning

confidence: 75%

Productivity, Control, and Decomposition of Irrigated Forage Species under Glyphosate Doses and Shading

et al. 2018

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Light intensity available in growing environments may influence the susceptibility of plants to glyphosate and decomposition of their residues. This study aimed to assess the productivity, control, and decomposition of forage straw submitted to glyphosate doses and exposed to full sun and 50% shade. Two experiments were carried out, one for Piatã grass (Urochloa brizantha cv. Piatã) and other for Tanzania grass (Megathyrsus maximus cv. Tanzania). The experimental design was a randomized block design with strip-plot and four replications. Two growing environments (at full sun and under 50% shade) were installed in strips in the growing area, combined with six doses of glyphosate (0, 360, 720, 1,080, 1,440, and 1,800 g a.e. ha-1) used for forage desiccation. Shade did not change Tanzania grass productivity (p<0.05), but it reduced Piatã grass productivity (p>0.05), suggesting its low tolerance to light restriction. Tanzania grass is more tolerant to glyphosate when compared to Piatã grass, especially at full sun conditions. In general, the evaluated forages present a high susceptibility to glyphosate as incident radiation is reduced, which allows using lower doses to desiccate them in shaded environments. Straw decomposition of Piatã and Tanzania grasses was slower under shading. In this environment with light restriction, straw is more durable and has a better quality for the no-tillage system.

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“…Integrated production systems are considered good options when pursuing sustainability and, among them, silvopastoral systems are promising alternatives due to tree shading benefits. For pastures, the advantages depend on tree age, spacing, and arrangement since they interfere with the degree of shading (Paciullo et al 2014). Assessments of forage morphophysiological characteristics under shade are important to understand the species response (Oliveira et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…For pastures, the advantages depend on tree age, spacing, and arrangement since they interfere with the degree of shading (Paciullo et al 2014). Assessments of forage morphophysiological characteristics under shade are important to understand the species response (Oliveira et al 2013). It is also essential to know the changes that occur over the seasons, such as different temperatures and rainfall conditions.…”

Section: Introductionmentioning

confidence: 99%

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Structure and nutritional value of BRS Zuri grass under shading

Janusckiewicz

Paiva

Fernandes

et al. 2021

Rev. bras. saúde prod. anim.

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The objective was to determine the structural and nutritive parameters for Panicum maximum cv. BRS Zuri under a Eucalyptus shading system, in rainy and dry seasons. At the beginning of each season, the treatments (foliar fertilization levels of 0, 3, 6 and 9 L ha-1) were applied and evaluated at 28, 56, and 84 growing days. The treatments did not affect significantly (p ≥ 0.05) the evaluated parameters. The systems (shading and full sun) and seasons did not change (p ≥ 0.05) forage and root masses. The leaf crude protein content was higher (p ≤ 0.05) in the dry season. Height, leaf mass, stem and dead material, neutral and acid detergent fiber contents, and in vitro dry matter digestibility were affected (p ≤ 0.05) by the system x season. The growing days did not affect (p ≥ 0.05) forage mass. The mass of dead material decreased (p ≤ 0.05) over the evaluated intervals. The other parameters were affected (p ≤ 0.05) by system × growing days. Based on the results, the forage and root masses show that the cv. BRS Zuri is adapted to the shading in the proposed experimental conditions. These masses added to the crude protein content indicate adaptation to low rainfall, inherent to the dry season, while foliar fertilization applied at the beginning of seasons did not affect the structural and nutritive parameters of BRS Zuri grass.

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Comportamento de Andropogon gayanus cv. ‘planaltina’ e Panicum maximum cv. ‘tanzânia’ sob sombreamento

Abstract: Comportamento de

Cited by 10 publications

References 13 publications

Luminosity levels and substrates composition on Bermuda Grass development

Luminosity levels and substrates composition on Bermuda Grass development

Productivity, Control, and Decomposition of Irrigated Forage Species under Glyphosate Doses and Shading

Structure and nutritional value of BRS Zuri grass under shading

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