Calopogonium mucunoides Desv. accessions evaluation. Morphological characterization related to reproductive aspects and seed multiplication

Authors

  • Elizabeth Ann Veasey Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Agronomia de Plantas Forrageiras, Nova Odessa, SP
  • Odete Maria Aparecida Angeli Ghisi Empresa Brasileira de Pesquisa Agropecuária
  • Nilza Rocha Mecelis Empresa Brasileira de Pesquisa Agropecuária
  • Ivani Pozar Otsuk Instituto de Zootecnia, Divisão de Técnica Básica e Auxiliar, Seção de Estatística e Técnica Experimental, Nova Odessa, SP
  • Eliana Aparecida Schammass Instituto de Zootecnia, Divisão de Técnica Básica e Auxiliar, Seção de Estatística e Técnica Experimental, Nova Odessa, SP

Keywords:

calopogonium mucunoides, seed production, genetic variability, cluster analysis

Abstract

The morphological characterization related to reproductive aspects and seed production of€™ 12 accessions of Calopogonium mucunoides was evaluated. The trial was conducted initially in the green house, in a randomized complete block design with 4 replications, and with the evaluation of cotyledon height (AC) and number of trifoliate leaves (NFT). A field trial was established afterwards in a randomized complete block design with 4 replications, and with individualized plants. The characters time to flowering (IF), pod length (CV), number of seeds per pod (NSV), seed production (PRS), weight of 50 seeds (PS), percentage of well developed seeds (PSG) and germination percentage (G) were evaluated. The data was analysed by using uni and multivariate analysis (principal component and cluster analyses). The genetic parameters: coefficient of genotipíc determination (b) and coefficient of genetic variation (CVg) were estimated as well. The accessions showed significant differences (P<0.01)) for all characters evaluated. Five groups of accessions were obtained in the cluster analyses. Group 2, represented by the commercial cultivar, surpassed all the others as the best seed producer. All characters evaluated presented a discriminatory function.

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Published

2014-01-14

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Calopogonium mucunoides Desv. accessions evaluation. Morphological characterization related to reproductive aspects and seed multiplication. (2014). Bulletin of Animal Husbandry, 51(1), 27-34. http://bia.iz.sp.gov.br/index.php/bia/article/view/818

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