Five wheat varieties/lines viz; HABA-4, HABA-12, Pitic-62, Pak-81 and LU26S were crossed in a diallel fashion to determine the mode of inheritance of some important spike characteristics. Number of spikes per plant, number of grains per spike and grain yield per plant were governed by over dominance type of gene action. Number of spikelets per spike, spike length and 1000-grain weight were ruled by partial dominance with additive type of gene action except spike length in which non additive type of gene action was observed. Epistasis was absent for all the traits studied.
How to cite this article
Muhammad Asif, Ihsan Khaliq, Muhammad Aslam Chowdhry and Abdus Salam, 1999. Genetic Mechanism For Some Spike Characteristics and Grain Yield In Bread Wheat . Pakistan Journal of Biological Sciences, 2: 948-951.