Seed production in Trifolium polymorphum and T. argentinanse in a protected environment
Abstract
Trifolium polymorphum and T. argentinense (Leguminosae) are two amphicarpic forage species native to the natural pastures of the southern half of Rio Grande do Sul, southern Brazil. Information about seed production in both species is scarce. In the present work we evaluated the number of inflorescences and the production of aerial seeds in T. polymorphum and T. argentinense in a protected environment and without access of pollinators. T. polymorphum plants produced significantly more inflorescences and seeds (63.15 and 8.94) than those of T. argentinense (24.84 and 1.05), respectively. The low seed production in a protected environment and without access to pollinators suggests the need for mechanical stimulation to ensure pollination, usually performed by insects to form seeds. This information can be used to plan future experiments where T. polymorphum and T. argentinense have free access to pollinators to obtain a higher seed production.
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References
BURKART, A. Las leguminosas argentinas silvestres e cultivadas. Buenos Aires: Acme, 1952. 569p.
BURKART, A. Flora ilustrada de Entre Rios. Buenos Aires: Colección Científica del INTA, 1987. 763p.
COLL, J.; ZARZA, A. Leguminosas nativas promisorias: trébol polimorfo y babosita. Montevideo: Instituto Nacional de Investigación Agropecuária, 1992. p. 1-19 (Boletín de Divulgación, 22).
CONTERATO, I. F.; SCHIFINO-WITTMANN, M. T.; DALL’AGNOL, M. Seed dimorphism, chromosome number and karyotype of the amphicarpic species Trifolium argentinense Speg. Genetic Resources and Crop Evolution, v. 57, p. 727-731, 2010. DOI: https://doi.org/10.1007/s10722-009-9508-1
CONTERATO, I. F.; SCHIFINO-WITTMANN, M. T.; GUERRA, D.; DALL’AGNOL, M. Amphicarpy in Trifolium argentinense: morphological characterization, seed production, reproductive behavior and life strategy. Australian Jounal of Botany, v. 6, p. 119-127, 2013. DOI: https://doi.org/10.1071/BT12321
CONTERATO, I. F.; SCHIFINO-WITTMANN, M.T. Estratégias reprodutivas da espécie anficárpica Trifolium polymorphum Poir. Enciclopédia Biosfera, v. 10, p. 2213-2222, 2014.
CONTERATO, I. F.; SCHIFINO-WITTMANN, M. T.; de DAVID, D. B.; MARTINS, J. D. Reproductive strategies and dimorphic seeds germination in Trifolium argentinense Speg., an amphicarpic species. Pesquisa Agropecuária Gaúcha, v. 25, p.66-79, 2019. DOI: https://doi.org/10.36812/pag.201925366-79
CONTERATO, I. F.; OLIVEIRA, P. J. B.; DAVID, D. B.; TRINDADE, J. K.; SCHIFINO-WITTMANN, M. T.; MALDANER, J.; AGNOL, M. D.; NUNES, J. R. G. Trifolium polymorphum: an amphicarpic species with an interesting reproductive biology. Brazilian Journal of Botany, v. 42, p. 681-687, 2019. DOI: https://doi.org/10.1007/s40415-019-00570-x
FERNANDEZ, J. G.; BENITEZ C. A.; PALLARES O. R. Principales forrajeras nativas del medio este de la Provincia de Corrientes. Corrientes: INTA, 1983. p. 68-69 (Série Técnica, 23).
LEWIS, G.; SCHRIRE B.; MACKINDER B.; LOCK M. Legumes of the world. Kew: Royal Botanic Gardens, 2005. 577p.
KAPPEL, A. Os trevos: espécies do gênero Trifolium. Porto Alegre: Secretaria da Agricultura do Rio Grande do Sul, 1967. 48p.
LEV-YADUN, S. Why are undergrownd flowering and fruiting more common in Israel than anywhere else in the world? Current Science, v. 79, p. 289, 2000.
MINISTÉRIO DO MEIO AMBIENTE. Projeto Plantas para o Futuro. 2009. Disponível em http://www.mma.gov.br/sitio. Acesso em: 28 outubro 2009.
MIOTTO, S. T. M. Grupos de uso e as espécies prioritárias - Espécies forrageiras – Fabaceae. In: CORADIN, L.; SIMINSKI, A.; REIS, A. (Ed.). Espécies nativas da flora brasileira de valor econômico atual ou potencial: plantas para o futuro – Região Sul. Brasilia: Ministério do Meio Ambiente, 2011. cap. 5, p. 355-398.
REAL, D.; DALLA RIZZA, M.; REYNO, R.; QUESENBERRY, K. H. Breeding system of the aerial flowers in an amphicarpic clover species: Trifolium polymorphum. Crop Science, v. 47, p. 1401-1406, 2007. DOI: https://doi.org/10.2135/cropsci2006.11.0744
SPERONI, G.; IZAGUIRRE, P. Características biológicas de la leguminosa nativa promissória forragera Trifolium polymorphum Poir. (Fabaceae, Faboideae). Agrociencia, v. 7, p. 68-76, 2003.
SPERONI, S.; IZAGUIRRE, P.; BERNARDELLO, G.; FRANCO, J. Intrafloral phenology of Trifolium polymorphum Poir. (Leguminosae). Acta Botanica Brasilica, v. 23, p. 881-888, 2009. DOI: https://doi.org/10.1590/S0102-33062009000300029
SPERONI, G.; IZAGUIRRE, P.; BERNARDELLO, G.; FRANCO, J. Reproductive versatility in legumes: the case of amphicarpy in Trifolium polymorphum. Plant Biology, v. 16, p. 690-696, 2014. DOI: https://doi.org/10.1111/plb.12113
STRAUSS, S.Y.; ZANGREL, A. R. Plant–insect interactions in terrestrial ecosystems. In: HERRERA, C. M.; PELLMYR, O. (Ed.). Plant–animal interactions. An evolutionary approach. Oxford: Blackwell Science, 2002. p. 77-106.
ZOHARY, M.; HELLER, D. The Genus Trifolium L. The Israel Academy of Sciences and Humanities, 1984, 606p.
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