A quantitative assessment of factors affecting the rooting of grapevine rootstocks (Vitis vinifera L.)

Daniel  Boeno; Katia Christina  Zuffellato-Ribas

doi:10.4025/actasciagron.v45i1.57987

Daniel Boeno Universidad Tecnológica del Uruguay https://orcid.org/0000-0003-1253-9436
Katia Christina Zuffellato-Ribas Universidade Federal do Paraná https://orcid.org/0000-0001-6320-5773

DOI: https://doi.org/10.4025/actasciagron.v45i1.57987

Keywords: auxin; seedling; substrate.

Abstract

Grapevine is a fruit species of great agronomic interest since both fresh fruit and wine are highly marketable products. Therefore, there is growing interest in this crop among researchers in the pursuit of increased yields and better cultivation conditions. Asexual propagation is the most commonly used method for propagating grapevine seedlings, with cuttings used for rootstock formation and subsequent grafting of materials to form the canopy. The rootstock is responsible for support, water, and nutrient uptake, thus determining the vigor of the plant; therefore, it is essential to understand the suitable conditions in which roots can thrive and thereby enhance plant growth. The type of cutting, type of substrate, and application of exogenous auxins are among the factors that interfere with the rooting of grapevine rootstocks, and determining and implementing the best combination of these factors could provide for more vigorous plants. Reviewing high-quality published scientific research from diverse countries is a method of identifying data, grouping information, and obtaining reliable answers. Furthermore, it can allow for the detection and grouping of the main factors affecting the rooting of grapevine cuttings, thus enabling a clearer recommendation and better understanding of the issue.

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Author Biography

Katia Christina Zuffellato-Ribas, Universidade Federal do Paraná

Possui graduação em Ciências Biológicas (Botucatu) pela Universidade Estadual Paulista Júlio de Mesquita Filho (1990), mestrado em Ciências Biológicas (Botânica) pela Universidade Estadual Paulista Júlio de Mesquita Filho (1993), doutorado em Ciências Biológicas (Botânica) pela Universidade Estadual Paulista Júlio de Mesquita Filho (1997) e pós-doutorado em Fisiologia Vegetal pela Università di Pisa, Italia (2009). Atualmente é Professora Titular (2015) do Departamento de Botânica da Universidade Federal do Paraná, onde coordena o Grupo de Estudo e Pesquisa em Estaquia (GEPE), desde sua fundação em 2003. É professora permanente do Programa de Pós-Graduação em Agronomia - Produção Vegetal (PGAPV), orientando na área de Morfogênese e Biotecnologia de Planta. É lider do grupo de pesquisa GEPE, devidamente cadastrado no CNPq, mantendo colaboração com a Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), nas unidades EMBRAPA Florestas, em Colombo-PR e EMBRAPA Agroenergia, em Brasília-DF. Foi bolsista e Pesquisadora Nível II do CNPq, de 2008 a 2011, de 2012 a 2015 e de 2015 a 2018. É bolsista e Pesquisadora Nível I D do CNPq, desde 2018. Tem experiência na área de Fisiologia Vegetal, com ênfase em Propagação Vegetativa, indução da rizogênese, uso de reguladores vegetais, rejuvenescimento, indução do florescimento precoce, dentre outros relativos à produção de mudas de espécies nativas visando a revegetação de áreas degradadas, além da propagação de espécies frutíferas, ornamentais e medicinais.

References

Abu-qaoud, H. (1999). Performance of different grape cultivars for rooting and grafting. An-Najah University Journal for Research, 13, 1-8.

Ahmed, S., Jaffar, M. A., Ali, N., Ahmed, S., Ramzan, M., & Habib, Q. (2017). Effect of naphthalene acetic acid on sprouting and rooting of stem cuttings of graps. Science Letters, 5(3), 225-232.

Alley, C. J. (1980). Propagation of grapevines. California Agriculture, 34(7), 29-30.

Amaral, U., Bini, D. A., & Martins, C. R. (2009). Rapid propagation of rootstock of grapevine semihardwood cuttings in Uuguaiana-RS. Revista da FZVA, 15(2), 85-93.

Bartolini, G., Fabbri, M., & Tattini, M. (1988). Effect of phenolic acids on rhizogenesis in a grape rootstock (“140 Ruggeri”) cuttings. Acta Horticulturae, 227, 242-247.

Bartolini, S., Carrozza, G. P., Scalabrelli, G., & Toffanin, A. (2017). Effectiveness of Azospirillum brasilence Sp245 on young plants of Vitis vinifera L. Open Life Science, 12(1), 365-372. DOI: https://doi.org/10.1515/biol-2017-0042

Bettoni, J. C., Gardin, J. P. P., Feldberg, N. P., Schumacher, R., Souza, J. A., & Furlan, C. (2014a). O uso de AIB melhora a qualidade de raízes em estacas herbáceas de porta-enxerto de videira. Evidência, 14(1), 47-56. DOI: https://doi.org/10.13140/2.1.1428.2884

Bettoni, J. C., Gardin, J. P. P., Feldberg, N. P., Schumacher, R. L., Souza, J. A., & Petri, J. L. (2014b). Rooting for the stakes rootstock vine vr043-43 under application of lesion and auxins applications. Evidência, 14(2), 129-138.

Biasi, L. A., & Boszczowski, B. (2005). Semihardwood cutting propagation of Vitis rotundifolia cv. Magnolia and Topsail. Revista Brasileira de Agrociência, 11(4), 405-407.

Biasi, L. A., Pommer, C. V., & Pino, P. A. G. S. (1997). Propagação de porta-enxertos de videira mediante estaquia semilenhosa. Bragantia, 56(2), 367-376. DOI: https://doi.org/10.1590/S0006-87051997000200016

Bordin, I., Hidalgo, P. C., Bürkle, R., & Roberto, S. R. (2005). Effect of leaf presence on semihardwood cutting rooting of grapevine rootstocks. Ciência Rural, 35(1), 215-218.

Botelho, R. V., Maia, A. J., Pires, E. J. P., Terra, M. M., & Schuck, E. (2005a). Cutting of the vine rootstock ’43-43’ (V. vinifera x V. rotundifolia) resistant to Eurhizococchus brasiliensis. Revista Brasileira de Fruticultura, 27(3), 480-483.

Botelho, R. V., Maia, A. J., Pires, E. J. P., Terra, M. M., & Schuck, E. (2005b). Effects of plant regulators on the vegetative propagation of vine rootstock ‘43-43’ (Vitis vinifera x V. rotundifolia). Revista Brasileira de Fruticultura, 27(1), 6-8.

Botelho, R. V., Souza, J., Schreider, E, Pires, E. J. P., & Terra, M. M. (2009). Propagation of the ‘niagara rosada’ grapevine (Vitis labrusca), grafted on the rootstock ‘VR-043-43’ (V. vinifera x V. rotundifolia). Scientia Agraria, 10(5), 359-364. DOI: http://dx.doi.org/10.5380/rsa.v10i5.15190

Carvalho, A. R. J., Nunes, V. X., & Pereira, M. C. T. T. (2014). Seedlings of Italia grapevine grown on different substrates and IBA in semiarid conditions. Revista Agrotecnologia, 5(1), 62-74.

Chakraborty, S., & Rajkumar, M. (2018). Effect of growth regulators and organic substances on rooting of grapes (Vitis vinifera L.) cv. Muscat. Asian Journal of Science and Technology, 9(7), 8418-8421.

Coradini, D. M., Silva, E. S. B., & Korte, K. P. (2014). Rooting of semiharwood cuttings of grapevine rootstock treated with indolebutyric acid. Revista de Ciências Exatas e da Terra e Ciências Agrárias, 9(2), 80-85.

Cristoferi, G., Filiti, N., & Rossi, F. (1988). The effects of reversed polarity and acropetal centrifugation on the rooting of hardwood cuttings of grapevine rootstock Kober 5BB. Acta Horticulturae, 227, 150-154. DOI: https://doi.org/10.17660/ActaHortic.1988.227.23

Dardeniz, A., Gökbayrak, Z., Müftüoglu, N. M., Türkmen, C., & Be§er, K. (2008). Cane Quality Determination of 5 BB and 140 Ru Grape Rootstocks. European Journal of Horticultural Science, 73(6), 254-258.

Daskalakis, I., Biniari, K., & Bouza, D. (2019). Effect of indolebutyric acid (IBA) and cane position on rooting of rootstock’s cuttings. Acta Horticulturae, 1242, 767-773. DOI: https://doi.org/10.17660/ActaHortic.2019.1242.114

Daskalakis, I., Biniari, K., Bouza, D., & Stavrakaki, M. (2018). The effect that indolebutyric acid (IBA) and position of cane segment have on the rooting of cuttings from grapevine rootstocks and from Cabernet franc (Vitis vinifera L.) under conditions of a hydroponic culture system. Scientia Horticulturae, 227, 79-84. DOI: http://dx.doi.org/10.1016/j.scienta.2017.09.024.

De Albuquerque, T. C. S., & Choudhury, E. N. (1993). The influence of basal buds removal and rooting media on root formation and quality of grapevines rootstock (cv. Tropical). Revista Brasileira de Fruticultura, 15(1), 193-197.

Denega, S., Biasi, L. A., Zanette, F., Nascimento, I. R., & Blaskevics, S. J. (2009). Rooting of indole-3-butyric acid-treated cuttings of nine Vitis rotundifolia cultivars performed during spring and summer. Scientia Agraria, 10(3), 199-207.

Dogan, A., Uyak, C., & Kazankaya, A. (2016). Effects of indole-butyric acid dese, differents roting media and cutting thicknesses on rooting ratios and rot qualities of 41B, 5BB and 420A american grapevine. Journal of Applied Biological Sciences, 10(2), 8-15.

Egger, E., Moretti, G., & Borgo, M. (1985). Confronto di substrati per la moltiplicazione rapida di talee verdi ed apici vegetativi di portinnesti della vite in serra. Vignevini, 12(4), 43-49.

Fachinello, J. C., Hoffmann, A., Nachtigal, J. C., Kersten, E., & Fortes, G. D. L. (1995?). Propagação de plantas frutiferas de clima temperado. Pelotas, RS: UFPEL-Ed. Universitaria.

Faria, A. P., Roberto, S. R., Sato, A. J., Rodrigues, E. B., Silva, J. V., Sachs, P. J. D., ... Unemoto, L. K. (2007). Rooting of semi hardwood cuttings of ‘IAC 572 – Jales’ grapevive rootstock treated with different concentrations of indolbutyric acid. Semina: Ciências Agrárias, 28(3), 393-398.

Fronza, D., & Hamann, J. J. (2015). Nurseries and seedling propagation. Santa Maria, RS: Rede e-Tec Brasil.

Gökbayrak, Z., Dardeniz, A., Arıkan, A., & Kaplan, U. (2010). Best duration for submersion of grapevine cuttings of rootstock 41B in water to increase root formation. Journal of Food, Agriculture & Environment, 8(3-4), 607-609.

Gonçalves, A. L., & Minami, K. (1994). Artificial substract effect on the rooting of calanchoe (Kalanchoe x Blssfeldiana cv. Singapur, CRASSULACEAE) cuttings. Scientia Agricola, 51(2), 240-244. DOI: https://doi.org/10.1590/S0103-90161994000200007

Goode Junior, D. Z., & Lane, R. P. (1983). Rooting leafy muscadine grape cuttings. HortScience, 18(6), 944-946.

Goode Junior, D. Z., Krewer, G. W., Lane, R. P., Daniell, J. W., & Couvillon, G. A. (1982). Rooting studies of dormant muscadine grape cuttings. HortScience, 17(4), 644-645.

Hartman, H. T., Kester, D. E., Davies Junior, F. T., & Geneve, R. L. (2011). Plant propagation: principels and practices (8th ed.). Boston, US: Prentice-Hall.

Ismail, S. H., Shalamova A. A., & Abramov, A. G. (2020). Rooting stimulation of “Victoria” and “Korinka russkaya” grape hardwood cuttings as influenced by potassium salt of Indolyl-3-Acetic Acid (KIAA). Vegetable Crops of Russia, 1, 70-73. DOI: https://doi.org/10.18619/2072-9146-2020-1-70-73.

Jesus, A. M. S., Villa, F., & Chalfun, N. N. J. (2018). Épocas de enxertia e indução radicular através de aquecimento basal para obtenção antecipada de mudas de videira. Scientia Agraria Paranaensis, 17(1), 35-40.

Kacar, E., & İsfendiyaroğlu, M. (2019). Effects of Different Pre-Sized Rooting Blocks and IBA Concentrations on the Rooting of Ramsey Grapevine Rootstock Cuttings. Ege Üniversitesi Ziraat Fakültesi Dergisi, 56(1), 1-6. DOI: https://doi.org/10.20289/zfdergi.396612.

Keeley, K., Preece, J. E., Taylor, B. H., & Dami, I. E. (2004). Effects of high auxin concentrations, cold storage, and cane position on improved rooting of Vitis aestivalis Michx. Norton cuttings. American Journal of Enology and Viticulture, 55(3), 265-268.

Keeley, K., Preece, J. E., & Taylor, B. H., (2003). Increased rooting of “Norton” grape cuttings using auxins and gibberellin biosynthesis inhibitors. HortScience, 38(2), 281-283. DOI: https://doi.org/10.21273/HORTSCI.38.2.281

Köse, C. & Güleryüz, M. (2006). Effects of auxins and cytokinins on graft union of grapevine (Vitis vinifera). New Zealand Journal of Crop and Horticultural Science, 34(2), 145-150. DOI: https://doi.org/10.1080/01140671.2006.9514399

Kracke, H., & Cristoferi, G. (1983). Effect of IBA and NAA treatments on the endogenous hormones in grapevine rootstock hardwood cuttings. Growth Regulators, XXI IHC 137(9), 95-102. DOI: https://doi.org/10.17660/ActaHortic.1983.137.9

Leão, P. C. S. (2003). Effects of different kinds of cuttings in the scion production grapevine rootstocks, CV. IAC 572 ‘Jales’. Ciência Rural, 33(1), 165-168.

Leonel, S., & Rodrigues, J. D. (1993). Efeito da época de estaquia, fitorreguladores e ácido bórico no enraizamento de estacas de porta-enxertos de videira. Scientia Agricola, 50(1), 27-32. DOI: https://doi.org/10.1590/S0103-90161993000100005

Lone, A. B., López, E. L., Rovaris, S. R. S., Klesener, D. F., Higashibara, L., Ataíde, L. T., & Roberto, S. R. (2010). Effect of IBA on the rotting of herbaceous cuttings of VR 43-43 grapevine rootstoks in different substrates. Semina: Ciências Agrárias, 31(3), 599-604.

Machado, M. P., Mayer, J. L. S., Ritter, M., & Biasi, L. A. (2005). Indole butyric acid on rooting ability of semihardwood cutting of grapevine rootstock 'VR 043-43' (Vitis vinifera x Vitis rotundifolia). Revista Brasileira de Fruticultura, 27(3), 476-479. DOI: https://doi.org/10.1590/S0100-29452005000300032

Mayer, J. L. S., Biasi, L. A., & Bona, C. (2006). Capacidade de enraizamento de estacas de quatro cultivares de Vitis L. (Vitaceae) relacionada com os aspectos anatômicos. Acta Botanica Brasilica, 20(3), 563-568. DOI: https://doi.org/10.1590/S0102-33062006000300006

Mitra, G. C., & Bose, N. (1954). Rooting and histological responses of detached leaves to B-Indolebutyric acid with special reference to Boerhavia diffusa Linn. Phytomorphology, 7(3/4), 370-381.

Mohamed, G. A. (2017). Water soaking duration, Indole butyric acid and rooting media and their effect on rooting ability of Ramsey grapevine rootstock cuttings. Middle East Journal of Applied Sciences, 7(4), 1080-1100.

Monteguti, D., Biasi, L. A., Peresuti, R. A., Sachi, A. D. T., De Oliveira, O. R., & Skalitz, R. (2008). Rooting of grapevine rootstock hardwood cuttings by using organic fertilizer. Scientia. Agraria, 9(1), 99-103. DOI: http://dx.doi.org/10.5380/rsa.v9i1.10144

Moretti, G., & Borgo, M. (1985). Stimolazioni ed antagonismi nel campo dei fitoregolatori rizogeni in vitigni portinnesti. Vignevini, 12(11), 31-36.

Nachtigal, J. C., & Pereira, F. M. (2000). Propagação do pessegueiro (Prunus persica L. Batsch) cultivar Okinawa por meio de estacas herbáceas em câmara de nebulização. Revista Brasileira de Fruticultura, 22(2), 208-212.

Nascimento, D. C., Dini, M., Moreira, R. M., Sampaio, N. V., & Schuch, M. W. (2019). Minicutting of chardonnay grapevine and SO4 grapevine rootstock. Revista Científica Rural, 21(3), 270-281. DOI: https://doi.org/10.30945/rcr-v21i3.3050

Neto, I. F. D. S., Ricardino, I. E. F., Souza, M. N. C., Aguiar, A. M., & Marques, A. E. F. (2020). Utilização da uva como fonte de corante natural: uma revisão integrativa. Revista Ciência (In) Cena, 1(11), 16-27.

Nicoloso, F. T., Cassol, L. F., & Fortunato, R. P. (2001). Shoot cutting length on rooting of brazilian ginseng (Pfaffia glomerata). Ciência Rural, 31(1), 57-60. DOI: https://doi.org/10.1590/S0103-84782001000100009

Pires, E. J. P., Biasi, L. A. (2003). Propagação da videira. In C. V. Pommer (Ed.), Uva: tecnologia de produção, pós-colheita, mercado (p. 295-319). Porto Alegre, RS: Cinco Continentes.

Regina, M. D. A., Souza, C. R. D., & Dias, F. A. N. (2012). Propagation of Vitis spp. by bench grafting table using different rootstocks and auxins. Revista Brasileira de Fruticultura, 34(3), 897-904. DOI: https://doi.org/10.1590/S0100-29452012000300032

Rezende, L. D. P., & Pereira, F. M. (2001). Production of ‘Rubi’ grapevine scion by bench-grafting of IAC 313 ´Tropical` and IAC 766 ´Campinas` herbaceous cuttings. Revista Brasileira de Fruticultura, 23(3), 662-667.

Roberto, S. R., Kanai, H. T., & Yano, M. Y. (2004c). Rooting and shoot growth of six grapevine rootstocks submitted to the stratification of hardwood cuttings. Acta Scientiarum. Agronomy, 26(1), 79-84. DOI: https://doi.org/10.4025/actasciagron.v26i1.1963

Roberto, S. R., Neves, C. S. V. J., Jubileu, B. S, & de Azevedo, M. C. B. (2004b). Evaluation of herbaceous vine roostocks rooting on different growth media through image analysis. Acta Scientiarum. Agronomy, 26(1), 85-90.

Roberto, S. R., Pereira, F. M., Neves, C. S. V. J., Jubileu, B. D. S., & Azevedo, M. C. B. D. (2004a). Herbaceous cutting rooting of ‘Campinas’ (IAC 766) and ‘Jales’ (IAC 572) vine roostocks on different growth medium. Ciência Rural, 34(5), 1633-1636. DOI: https://doi.org/10.1590/S0103-84782004000500051

Roberto, S. R., Zietemann, C., Colombo, L. A., Assis, A. M., Santos, C. E., Aguiar, R. S., & Moraes, V. J. (2006). Rooting of softwood cuttings of IAC 572 ‘Jales’ and IAC 766 ‘Campinas’ rootstocks in nebulization chambers. Acta Scientiarum. Agronomy, 28(4), 479-482.

Sabir, F. K., & Sabir, A. (2018). Effects of different storage conditions on rooting and shooting performance of grapevine (Vitis vinifera L.) cuttings in hydroponic culture system. International Journal of Sustainable Agricultural Research, 5(3), 46-53. DOI: https://doi.org/10.18488/journal70.2018.53.46.53.

Salibe, A. B., Braga, G. C., Pio, R., Tsutsumi, C. Y., Jandrey, P. E., Rossol, C. D., ... Silva, T. P. D. (2010). Rooting cuttings of rootstocks of grape vine ‘vr 043-43’ submitted to the stratification, indolebutyric acid and boric acid. Bragantia, 69(3), 617-622. DOI: https://doi.org/10.1590/S0006-87052010000300013

Silva, A. L., Fachinello, J. C., & Machado, A. A. (1986). Effect of indolbutyric acid in grapevine grapting and rooting. Pesquisa Agropecuária Brasileira, 21(8), 865-871.

Singh, K. K. (2018). A review: Multiplication of Bougainvillea species through cutting. International Journal of Chemical Studies, 6(2), 1961-1965.

Soltekin, O., & Altindisli, A. (2017). Effects of hot water treatments on dormant grapevine propagation materials used for grafted vine production. In BIO Web of Conferences, 40th World Congress of Vine and Wine, 9, 1-7. DOI: https://doi.org/10.1051/bioconf/20170901003

Somkuwar, R. G., Bondage, D. D., Surange, M. S., & Ramteke, S. D. (2011). Rooting behaviour, polyphenol oxidase activity, and biochemical changes in grape rootstocks at different growth stages. Turkish Journal of Agriculture and Forestry, 35(3), 281-287. DOI: https://doi.org/10.3906/tar-0911-62

Somkuwar, R. G., Sharma, J., Satisha, J., Khan, I., & Itroutwar, P. (2013). Effect of zinc application to mothervines of Dogridge rootstock on rooting success and establishment under nursery condition. International Journal of Scientific & Technology Research, 2(9), 198-201.

Souza, E. R., Lenk, F. L., Ono, E. O., & Rodrigues, J. D. (2015). Carbohydrate content in vine cuttings of rootstock cv. IAC 572. Brazilian Journal of Applied Technology for Agricultural Science, 8(2), 7-15. DOI: https://doi.org/10.5935/PAeT.V8.N2.01

Sozim, M., & Ayub, R. A. (2006). Propagation of vine rootstocks (Vitis sp.) treated with IBA. Publicações da UEPG Ciências Exatas e da Terra, Ciências Agrárias e Engenharias, 12(02), 37-41.

Taiz, L., & Zeiger, E. (2013). Fisiologia vegetal. (5. ed.). Porto Alegre, RS: Artmed.

Tecchio, M. A., Moura, M. F., Hernandes, J. L., Pio, R., & Wyler, P. (2007). Evaluation of rooting, development of roots and shoot biomass from rootstock of grapevine, in field conditions. Ciência e Agrotecnologia, 31(6), 1857-1861.

Thomas, P., & Schiefelbein, J. W. (2001). Combined in vitro and in vivo propagation for rapid multiplication of grapevine cv. Arka Neelamani. HortScience, 36(6), 1107-1110. DOI: https://doi.org/10.21273/HORTSCI.36.6.1107

Thomas, P., & Schiefelbein, J. W. (2004). Roles of leaf in regulation of root and shoot growth from single node softwood cuttings of grape (Vitis vinifera). Annals of Applied Biology, 144(1), 27-37. DOI: https://doi.org/10.1111/j.1744-7348.2004.tb00313.x

Thomas, P., Lee, M. M., & Schiefelbein, J. (2003). Molecular identification of proline‐rich protein genes induced during root formation in grape (Vitis vinifera L.) stem cuttings. Plant, Cell & Environment, 26(9), 1497-1504. DOI: https://doi.org/10.1046/j.1365-3040.2003.01071.x

Tofanelli, M. B. D., Freitas, P. L., & Pereira, G. E. (2014). 2, 4-dichlorophenoxyacetic acid as an alternative auxin for rooting of vine rootstock cuttings. Revista Brasileira de Fruticultura, 36(3), 664-672. DOI: https://doi.org/10.1590/0100-2945-266/13.

Uzunoğlu, Ö., & Gökbayrak, Z. (2018). Influence of IAA, 28-homobrassinolide and 24-epibrassinolide on Adventitious Rooting in Grapevine. COMU Journal of Agriculture Faculty, 6(1), 23-30.

Vilarinho, M. K. C., & Cândido, A. K. A. A. (2014). Effect of plant growth regulator on rooting of eritrina-green-yellow (Erythrina indica picta). Agrarian, 7(24), 251-256.

Villa, F., Pio, R., Chalfun, N. N. J., Gontijo, T. C. A., Coelho, J. H. C., & Dutra, L. F. (2003). Enraizamento de estacas herbáceas do porta-enxerto de videira'Riparia de Traviú'tratadas com auxinas. Ciência e Agrotecnologia, 27(6), 1426-1431. DOI: https://doi.org/10.1590/S1413-70542003000600030

Winkler, A. J., Cook, J. H., Kliewer, W. M., & Lider, L. A. (1974). General viticulture. Berkeley and Los Angeles, US: University of California Press.

Zuffellato-Ribas, K. C., & Rodrigues, J. D. (2001). Estaquia: uma abordagem dos principais aspectos fisiológicos. Curitiba, PR: K. C. Zuffellato-Ribas.