GENETIC IMPROVEMENT THROUGH MASS SELECTION IN MAIZE (Zea mays L.)
Ten open pollinated maize (Zea maize L.) population along with the original Population were tested at the post Graduate Research Station PARC University of Agriculture, Faisalabad. During spring and summer 1989.Mass selection proved superior for grain yield and other related characters, although number of leaves per plant and plant height showed no interaction of selected over original population. Selected, original and combined analysis of variance was also non-significant for the above two character. And there were, 1.59 and 0.64 percent decrease for number of leaves and plant height respectively. Significant interaction between selected x original population for number of ears per plant, number of kernel rows per year, number of kernels per row were non-significant among each other, but the selection, original, combined were highly significant among each population. Percent increase for number of ears per plant (13.15), number of kernel rows per year (4.79), number of kernels per row (2.70) and grain yields 4.93 percent was promising. Grain yield per plant gave highly significant increase and interaction by mass selected. The maximum increase (114.43 gm over 103.93 gm) was exhibited by IZ/13 selection as compared with a base population.