Abstract
Scientific papers regarding BRS Tamani management under shaded systems are still scarce. Thus, the objective of this study was to measure tissue flow through morphogenesis and physiological characteristics of BRS Tamani plants grown under different shading levels, managed to intercept 95% of light. The experiment was analyzed as a split-plot design with six replications. Whole plots were the growth seasons of the year (average of fall/winter and spring/summer seasons evaluated in both years) and the subplots were the artificial shading (0, 30, 45, and 73%). Shade levels were obtained by using commercial polypropylene nets of 30, 60, and 90% shade. The leaf appearance rate, stem elongation rate, leaf senescence rate, phyllochron, number of green leaves, leaf blade length and leaf area index were not influenced by shading, season and the interaction between shading and season. The morphological components, total dry mass and tillering of BRS Tamani were not affected by artificial shading. Canopy height was positively affected by the increase in artificial shading on BRS Tamani plants. The increase in shading caused a reduction in water use efficiency. On the other hand, stomatal conductance and chlorophyll a and b levels increased with shading. The photosynthetic rate and the respiratory rate increased up to the 45% shading level, with values decreasing at 75% shading. Phenotypic plasticity, through changes in the photosynthetic apparatus and plant morphology of BRS Tamani grass, allows its use in silvopastoral systems even under intense shading (73% shade).
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References
Abraham EM, Kyriazopoulos AP, Parissi ZM, Kostopoulou P, Karatassiou M, Anjalanidou K, Katsouta C (2014) Growth, dry matter production, phenotypic plasticity, and nutritive value of three natural populations of Dactylis glomerata L. under various shading treatments. Agrofor Syst 88:287–299. https://doi.org/10.1007/s10457-014-9682-9
Agnusdei MG, Di Marco O, Nenning FR, Aello MS (2012) Leaf blade nutritional quality of rhodes grass (Chloris gayana) as affected by leaf age and length. Crop Pasture Sci 62:1098–1105. https://doi.org/10.1071/CP11164
Baldassini P, Despósito C, Piñeiro G, Paruelo JM (2018) Silvopastoral systems of the Chaco forests: Effects of trees on grass growth. J Arid Environ 156:87–95. https://doi.org/10.1016/j.jaridenv.2018.05.008
Baungratz AR, Borba LP, Menezes BM, Souza C, Porsch JLM, Venturini T, Mesquita EE, Valente EEL, Macedo VP (2023) Production and morphogenetic traits of Megathyrsus maximus “Aruana” with nitrogen fertilization in silvopastoral and full sun systems. Semina: Ciências Agrárias 44:1207–1224. https://doi.org/10.5433/1679-0359.2023v44n3p1207
Bento CB, Brandani CB, Filoso S, Martinelli LA, do Camo JB (2021) Effects of extensive-to-intensive pasture conversion on soil nitrogen availability and CO2 and N2O fluxes in a Brazilian oxisol. Agr Ecosyst Environ 321:1–14. https://doi.org/10.1016/j.agee.2021.107633
Braga GJ, Maciel GA, Guimarães R Jr, Ramos AKB, Carvalho MA, Fernandes FD, Fonseca CEL, Jank L (2019) Performance of young Nellore bulls on guineagrass pastures under rotational stocking in the Brazilian Cerrado. Trop Grasslands-Forrajes Tropicales 7:214–222. https://doi.org/10.17138/tgft(7)214-222
Braz SP, Urquiaga S, Alves BJR, Jantalia CP, Guimarães AP, Santos CA, Santos SC, Pinheiro EFM, Boddey RM (2013) Soil carbon stocks under productive and degraded Brachiaria pastures in the Brazilian Cerrado. Soil Sci Soc Am J 77:914–928. https://doi.org/10.2136/sssaj2012.0269
Campos MO, Cerri CEP, Scala NL (2022) Atmospheric CO2, soil carbon stock and control variables in managed and degraded pastures in central Brazil. Remote Sensing App: Soc Environ 28:1–13. https://doi.org/10.1016/j.rsase.2022.100848
Chapman DF, Lemaire G (1993) Morphogenetic and structural determinants of plant regrowth after defoliation. In: Proceedings of the XVII International Grassland Congress, Palmerston North, Hamilton, Lincoln and Rockhampton (New Zealand and Australia), 8–21, 95–104.
Costa NL, Jank L, Magalhães JA, Bendahan AB, Rodrigues BHN, Santos FJS (2020) Forage yield and morphogenesis of Megathyrsus maximus cultivars in Roraimas’s savannas. Res Soc Develop 9:1–13. https://doi.org/10.33448/rsd-v9i8.6054
Cruz PJR, Borges CE, Santos MV, Magalhães MA, Martuscello JA, Fonseca DM, Silva LD (2021) Shade effects on the hybrid Mavuno brachiariagrass (Urochloa spp.) as potential grass in agroforestry systems. Agrofor Syst 95:1105–1108. https://doi.org/10.1007/s10457-021-00636-4
da Silva SC, Sbrissia AF, Pereira LET (2015) Ecophysiology of C4 Forage Grasses - Understanding Plant Growth for Optimising Their Use and Management. Agriculture 5:598–625. https://doi.org/10.3390/agriculture5030598
Dantas GF, Faria RT, Costa NR, Santos GO, Ferraudo AS (2020) Morphogenic and structural characteristics of marandu grass affected by fertigation with treated sewage effluent and cutting height. Engenharia Agrícola 40:692–702. https://doi.org/10.1590/1809-4430-Eng.Agric.v40n6p692-702/2020
de Carvalho CAB, da Silva PHF, Zanella PG, Diavão J, Paiva AJ (2022) Morphogenetic and structural traits of tillers and herbage accumulation of Tanganyika grass under shading levels. Rev Bras Saúde Prod Anim 23:1–15. https://doi.org/10.1590/S1519-99402100452022
Dibala R, Jose S, Gold M, Hall JS, Kallenbach R, Knapp B (2021) Tree density effects on soil, herbage mass and nutritive value of understory Megathyrsus maximus in a seasonally dry tropical silvopasture in Panama. Agrofor Syst 95:741–753. https://doi.org/10.1007/s10457-021-00628-4
EMBRAPA (2015) BRS Tamani, forrageira híbrida de Panicum maximum. https://www.embrapa.br/busca-de-publicacoes/-/publicacao/1011507/brs-tamani-forrageira-hibrida-de-panicum-maximum. Accessed 26 September 2023
Figueiredo EB, Jayasundara S, Bordonal RO, Berchielli TT, Reis RA, Wagner-Riddle C (2017) Greenhouse gas balance and carbon footprint of beef cattle in three contrasting pasture-management systems in Brazil. J Clean Prod 142:420–431. https://doi.org/10.1016/j.jclepro.2016.03.132
Humphreys LR (1991) Tropical Pasture Utilisation. Cambridge University Press, Cambridge
INMET (Brasil) Banco de Dados Meteorológicos para Ensino e Pesquisa. http://www.inmet.gov.br/projetos/rede/pesquisa/. Accessed 2 September 2023
Jank L, Simeão RM, do Valle CB, Resende MDV, Chiari L, Cançado LJ, Carine S (2008) Melhoramento genético de Panicum maximum. In: Resende RMS, Valle CB, Jank L (ed) Melhoramento de forrageiras tropicais, 1rd edn. Embrapa Gado de Corte, Mato Grosso do Sul, pp 55–97
Kearney M, O'Riordan EG, McGee M, Breen J, Crosson P (2022) Farm-level modelling of bioeconomic, greenhouse gas emissions and feed-food performance of pasture-based dairy-beef systems. Agric Syst 203:1–11. https://doi.org/10.1016/j.agsy.2022.103530
Kunst C, Ledesma R, Castanãres M, Cornacchione M, van Meer H, Godoy J (2014) Yield and growth features of Panicum maximum (Jacq.) var Trichoglume cv Petrie (Green Panic) under woody cover, Chaco region. Argentina Agroforestry Systems 88:157–171. https://doi.org/10.1007/s10457-013-9663-4
Lemaire G, da Silva SC, Agnusdei M, Wade N, Hodgson J (2009) Interactions between leaf lifespan and defoliation frequency in temperate and tropical pastures: A review. Grass Forage Sci 64:341–353. https://doi.org/10.1111/j.1365-2494.2009.00707.x
Lopes MJS, Dias-Filho MB, Castro THR, Silva GB (2018) Light and plant growth-promoting rhizobacteria effects on Brachiaria brizantha growth and phenotypic plasticity to shade. Grass Forage Sci 73:493–499. https://doi.org/10.1111/gfs.12336
Ludlow M (1985) Photosynthesis and dry matter production in C3 and C4 pasture plants, with special emphasis on tropical C3 legumes and C4 grasses. Funct Plant Biol 12:557–572
Ludlow M, Wilson G (1971) Photosynthesis of tropical pasture plants III. Leaf age. Aust J Biol Sci 24:1077–1088
Luo GY, Li JM, Guo SL, Li YL, ** ZX (2022) Photosynthesis, nitrogen allocation, non-structural carbohydrate allocation, and C:N: P stoichiometry of Ulmus elongata seedlings exposed to different light intensities. Life 12:1–13. https://doi.org/10.3390/life12091310
Martins FB, Gonzaga G, dos Santos DF, Reboita MS (2018) Classificação climática de Köppen e de Thornthwaite para Minas Gerais: cenário atual e projeções futuras. Revista Brasileira De Climatologia 14:129–156. https://doi.org/10.5380/abclima.v1i0.60896
Martuscello JA, Rios JF, Ferreira MR, Assis JA, Braz TGS, Cunha DNFV (2019) Produção e morfogênese de capim BRS Tamani sob diferentes doses de nitrogênio e intensidades de desfolhação. Boletim de Indústria Animal 76:1–10. https://doi.org/10.17523/bia.2019.v76.e1441
Monteiro MV, Blanusa T, Verhoef A, Hadley P, Cameron RWF (2016) Relative importance of transpiration rate and leaf morphological traits for the regulation of leaf temperature. Aust J Bot 64:32–44. https://doi.org/10.1071/BT15198
Nelson CJ (2000) Shoot morphological plasticity of grasses: leaf growth vs. tillering. In: Lemaire G., Hodgson J., de Moraes A., Nabinger C., de F. and Carvalho P.C. (ed) Grassland ecophysiology and grazing ecology. CABI Publishing, New York, pp 101–126
Oliosi G, Oliveira MG, Partelli FL (2021) Microclimate and development of black pepper intercropped with rubber tree. Agrofor Syst 95:1635–1645. https://doi.org/10.1007/s10457-021-00674-y
Paciullo DSC, Campos NR, Gomide CAM, de Castro CRT, Tavela RC, Rossiello ROP (2008) Crescimento de capim-braquiária influenciado pelo grau de sombreamento e pela estação do ano. Pesq Agrop Brasileira 43:917–923. https://doi.org/10.1590/S0100-204X2008000700017
Paciullo DSC, Gomide CAM, de Castro CRT, Fernandes PB, Müller MD, Pires MFA, Fernandes EN, Xavier DF (2012) Características produtivas e nutricionais do pasto em sistema agrossilvipastoril, conforme a distância das árvores. Pesq Agrop Brasileira 46:1176–1183. https://doi.org/10.1590/S0100-204X2011001000009
Paciullo DSC, Gomide CAM, Castro CRT, Maurício RM, Fernandes PB, Morenz MJF (2017) Morphogenesis, biomass and nutritive value of Panicum maximum under different shade levels and fertilizer nitrogen rates. Grass Forage Sci 72:590–600. https://doi.org/10.1111/gfs.12264
Parente L, Ferreira L, Faria A, Nogueira S, Araújo F, Teixeira L, Hagen S (2017) Monitoring the brazilian pasturelands: A new map** approach based on the landsat 8 spectral and temporal domains. Int J Appl Earth Obs Geoinf 62:135–143. https://doi.org/10.1016/j.jag.2017.06.003
Pontes LS, Carpinelli S, Stafin G, Porfírio-da-Silva V, dos Santos BRC (2017) Relationship between sward height and herbage mass for integrated crop-livestock systems with trees. Grassland Sci 63:29–35. https://doi.org/10.1111/grs.12147
Santiago-Hernández F, López-Ortiz S, Ávila-Reséndiz C, Jarillo-Rodríguez J, Pérez-Hernández P, Guerrero-Rodríguez J (2015) Physiological and production responses of four grasses from the genera Urochloa and Megathyrsus to shade from Melia azedarach L. Agrofor Syst 90:339–349. https://doi.org/10.1007/s10457-015-9858-y
Santos MV, Ferreira EA, Valadão D, de Oliveira FLR, Machado VD, Silveira RR, Souza MFF (2017) Brachiaria physiological parameters in agroforestry systems. Ciência Rural 47:1–6. https://doi.org/10.1590/0103-8478cr20160150
Santos Neto CF, da Silva RG, Maranhão SR, Cavalcante ACR, Macedo VHM, Cândido MJC (2023) Shading effect and forage production of tropical grasses in Brazilian semi-arid silvopastoral systems. Agrofor Syst 97:995–1005. https://doi.org/10.1007/s10457-023-00843-1
Silveira MCTD, NascimentoJúnior DD, Silva SCD, Euclides VPB, Montagner DB, Sbrissia AF, Rodrigues CS, Sousa BML, Pena KS, Vilela HH (2010) Morphogenetic and structural comparative characterization of tropical forage grass cultivars under free growth. Scientia Agricola 67:136–142. https://doi.org/10.1590/S0103-90162010000200002
Sousa LF, Moreira GR, LemosFilho JP, Paciullo DSC, Vendramini JMB, Luna REM, Maurício RM (2023) Morpho-physiological and anatomical characteristics of Urochloa brizantha cv. Marandu in silvopastoral and monoculture systems. Acta Scientiarum 45:1–12. https://doi.org/10.4025/actascianimsci.v45i1.59494
Tesk CRM, Cavalli J, Pina DS, Pereira DH, Pedreira CGS, Jank L, Sollenberger LE, Pedreira BC (2020) Herbage responses of Tamani and Quênia guineagrasses to grazing intensity. Agron J 112:2081–2091. https://doi.org/10.1002/agj2.20189
Vasconcelos ECG, Cândido MJD, Pompeu RCFF, Cavalcante ACR, Lopes MN (2020) Morphogenesis and biomass production of “BRS Tamani” guinea grass under increasing nitrogen doses. Pesq Agrop Brasileira 55:1–11. https://doi.org/10.1590/S1678-3921.pab2020.v55.01235
Vieira MS, Souto SM, Dias P, Colombari AA, Azevedo BC, Matta PM (2013) Efeito de sombreamento no crescimento inicial de Panicum maximum cv. Massai. Archivos Latinoamericanos de Producción Animal 21:49–54
Yang M, Liu M, Lu J, Yang H (2019) Effects of shading on the growth and leaf photosynthetic characteristics of three forages in an apple orchard on the Loess Plateau of eastern Gansu, China. PeerJ 7:1–16. https://doi.org/10.7717/peerj.7594
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This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001, the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) and the Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG).
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da Cruz, P.J.R., Anésio, A.H.C., Santos, M.V. et al. Grazing management of Megathyrsus maximus BRS Tamani under shading: Effects of morphogenetic, physiological, and herbage characteristics. Agroforest Syst (2024). https://doi.org/10.1007/s10457-024-00991-y
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DOI: https://doi.org/10.1007/s10457-024-00991-y