Crossability Studies in Inter Specific F₁ Hybrids of Mung Bean[Vigna radiata (L.) Wilczek] and Urdbean [Vigna mungo (L.) Hepper]

Interspecific hybridization is a useful tool for introducing alien variation and transferring desirable characters across species and ultimately increasing the genetic variation. Varying degrees of success in inter-specific hybridization of Vigna have been reported. The F₁s hybrids were usually found to be sterile or partially fertile and usually produce parental type in advance generation. To estimate crossability of inter and intra specific crosses present investigation is done. The crossability of interspecific crosses was ranging from17.64 to 37.93; with an average of (26.11%) in kharif- 2007 was lower than the crosses made in kharif-2008 which was ranging from 20.58 to 36.58, and average of (29.02%). The crossability has been also observed to be highly affected by environmental conditions, such as temperature and humidity.