Department of Genetics, University of Alberta, Edmonton, Alberta, Canada
2Present address: Fodder Res. Station, Palampur, H.P.
1Based on a thesis submitted by L. N. Singh to the Faculty of Graduate Studies, University of Alberta, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
A composite of 105 crosses, involving a diallel of 15 parental barley varieties was grown for five years (F4 to F8) at Edmonton, Alberta. In 1964, samples of each of these successive generations were grown and the selection trends of various characters studied. Positive association was observed in the trends of heading date, height of plant, maturity date and yield per plot, with some random fluctuation from generation to generation. Selection in favour of smaller and of non-black kernels was observed with advance in filial generation.
