Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2006.755.758Triticum-Hordeum Hybrids]]>RahamanM. M.KabirG. AlamA.M. S.YasminN. AkhterS. Ud-DeenM. M.4200694The present study was carried out for making a keen observation on interphase nuclei of F1s and their respective parents. Mean values for chromocentre number were found to be higher that of their respective Hordeum parents and but lower than that of their Triticum parents. The number of chromocentres were always less compared to their chromosome number in all the F1s. The percentage of heterochromatin per nuclear area in different hybrids ranged from 24.69% (H. nudum x T. durum) to 28.38% (T. aestivum x H.nudum). Nuclear Volume (NV) and Interphase Chromosome Volume (ICV) were found to be proportionally related the number and size of chromosomes. Mean values for Interphase Chromosome Volume (ICV) in the hybrids were found to decrease when compared to Triticum species but increased when compared to Hordeum species.]]>Dayal, N.,1975Raphanus sativus L. var. radicola Pers.]]>28429435Dayal, N. and C. Prasad,1983Raphanus satitvus L.]]>48245252Gupta, P.K. and G. Fedak,1985Hordeum californicum and 2x H. brevisubulatum S. I. with Agropyron caninum.]]>27380386Gupta, P.K. and G. Fedak,1985Hordeum and Secale.]]>95262273Lafontaine, J.G.,1974Vol. I,pp: 149-185pp: 149-185Nayer, G.G., K.P. George and A.R. Gopal Ayengar,197111175178Nagl, W. and H.P. Fusening,19792221233Samad, M.A., G. Kabir and A.S. Islam,1992Corchrus and their F1 hybrid.]]>21113117