Resumo

CONDE-LOZANO, Elizabeth; SALDIVAR-FITZMAURICE, Abelardo José; BRIONES-ENCINIA, Florencio  e  MARTINEZ-GONZALEZ, Juan Carlos. Autopolinización en la producción de semilla de pasto buffel (Cenchrus ciliaris L.). Agron. Mesoam [online]. 2011, vol.22, n.1, pp.133-140. ISSN 2215-3608.

Self-pollination in the production of seed of Buffel grass (Cenchrus ciliaris L.). The objective of this study was to compare different forms of pollination on the characteristics of seed of four varieties of Buffel grass. The study was carried out in the greenhouse and in the field of UAM Agronomia y Ciencias in the Municipa ity of Victoria, Tamaulipas. We used four varieties of Buffel grass (Comun, Nueces, T-1754 and Formidable) which were subjected to two types of pollination (free and self-pollination). The design used was a completely randomized blocks design. Day at flowering of male and female organs was measured. In addition, pollen was classified (fertile, intermediate and infertile), and the effects of self-pollination and free pollination free on the characteristics of seed were recorded. No effects were observed on days at flowering of female organs (P = 0.54), but the male organs were affected (P = 0.03), so that Formidable variety plants required 2.3 days to mature. The number of fertile, intermediate and infertile pollen grains was not affected by pollination or variety. All seed components were affected (P < 0.01) by the type of pollination, and the plants subjected to self-pollinating showed the best features. Pollination affected the characteristics of the seeds.

Palavras-chave : Cenchrus ciliaris; pollen; self-pollination; caryopsis.

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