Male meiosis, sporad analysis and pollen viability in a threatened medicinal plant Oroxylum indicum (L.) Kurz

Oroxylum indicum (L.) Kurz a well know and pharmaceutically explored medicinal plant of the family Bignoniaceae but in context cytological work, meagre information is available on same plant. During present investigation six accessions O. were studied for understanding male meiosis related events using standard techniques. Although, meiotic course was found to be regular, anomalies such as chromosomal stickiness unequal distribution chromosomes existed trace percentage when compared, meiosis- II more disturbed than meiosis-I. The presence monads, dyads, triads, sporads with micronuclei common, although low frequency. Significantly, spite abnormal tetrad formation, pollens healthy viable. variable values analyzed parameters among different types (morphs) stamens suggested prevalence dimorphism along morphological indicum.