Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2002.269.271RahmanM. A.SaadM. S.AzizahO. SalehG. B.3200253Variation and transgressive segregations were studied in the backcross generations
of populations involving three crosses in long bean [Vigna sesquipedalis
(L.) Fruw]. Trends were different for different crosses. In Cross 1, high mean,
variance and significant transgressive segregation (STS) pattern were exhibited
by BC2F1 generation for shelf life, pod yield per plant
and pod weight. In Cross 2, high means were shown by BC1F1 generations
for shelf life and pod yield per plant, but high STS were observed in BC2F1
generation for shelf life, BC1F1 for pod yield per plant
and BC1F2 for pod weight. In Cross 3, BC1F2
generation revealed high variances for shelf life, pod yield per plant
and number of pods per plant, but highest STS values were revealed for BC1F3
(selected) for shelf life and pod yield per plant, BC2F1
for number of pods per plant, and BC1F2 for pod weight.
In general, shelf life was found to have exhibited high mean and STS in the
BC2F1 generation. Pod length, in general did not show
good transgressive segregation in the crosses. Exploitation of these transgressive
segregants in breeding programmes for improvement of the character of interest
is suggested.]]>Anang, S.H.,19881988Cianzio, S.R. and W.R. Fehr,198266123129Cox, T.S.,1984683541Franklin, W.M.,198771313321Mak, C.,1973Vigna sesquipedalis (Fruw).]]>1973Poh, C.T.,1976Vigna sesquipedalis (Fruw).]]>1976Rao, V.J.M., B.B. Reddy, B.S. Rana and N.G.P. Rao,198343395403Reddy, K.P. and D.P. Singh,1990771214