Al- Hassan M &. REGULATION OF TILLERING IN WHEAT AND ITS RELATIONSHIP WITH GRAIN YIELD 2. CONTRIBUTION PERCENTAGES OF THE MAIN STEM AND PRIMARY TILLERS IN THE NUMBER OF SPIKELET AND GRAIN NUMBER AND WEIGHT OF 1000 GRAINS. Iraqi J. Agric. Sci. [Internet]. 2017 Apr. 19 [cited 2024 May 8];48(2). Available from: https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/421