Mjcm. Serenotavares et al., HYBRIDIZATION AMONG BRAZILIAN OAT (AVENA-SATIVA L) CULTIVARS AND THE WILD OAT AVENA-STERILIS L, Pesquisa agropecuaria brasileira, 30(3), 1995, pp. 383-388
Hybrids among Avena sativa (L.) Brazilian cultivars and A. sterilis L.
accessions were obtained without in vitro embryo culture. Parental sa
mples and their hybrids were investigated by morphological characters
of spikelets, meiotic chromosome behaviour and esterase isoenzymes ana
lysis. The F-1 hybrids were intermediate to the parental lines for the
morphological spikelet characters. The high esterase zymotype affinit
y made difficult the diagnostic of the hybrid condition. The hybrids p
resented more meiotic irregularities than the parental lines. However,
predominant bivalent formation shows that the corresponding chromosom
es in A, sativa and A. sterilis are able to pair effectively and shoul
d result in the recombination of characters of the two species.