Morphoagronomic characterization and reproductive versatility in polymorph clover
2023
Ionara Fátima Conterato | Jorge Dubal Martins | Madalena Boeni | Joseila Maldaner | Gerusa Pauli Kist Steffen | Rosana Mattos de Morais | Evandro Luiz Missio | Cleber Witt Saldanha | Diego Bitencourt de David
Trifolium polymorphum Poir. is a legume of natural pastures that combines amphicarpy with vegetative reproduction, but with little morphoagronomic information in populations of southern Brazil. In this study, plant height and diameter, number of primary stolons, dry matter, number of inflorescences, number of flowers per inflorescence, number of flowers with legume with seeds, number of flowers without legume or with legume without seeds, seed production, number and dry weight of storage roots were evaluated in populations of T. polymorphum. Little variation was observed for most characteristics, including low dry matter and aerial seed production. There were positive correlations between plant height and dry matter (r = 0.44), plant diameter and dry matter (r = 0.43), number of inflorescences and number of flowers per plant (r = 0.98) and number of inflorescences and seed production (r = 0.84). T. polymorphum presented low dry matter yield, however, the reproductive versatility of the species with the amphicarpic condition combined with vegetative propagation are mechanisms that allow the species to increase its frequency and contribution in natural pastures.
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