iarjalsIARJALSIARJALS2708-510410.47310/iarjals.2021.v02i02.013Influence of Growth and Phonological Attributes on Maize Production under Water Stress at Various Sowing DatesMahmoudAhmedBadrELdin Abdelgadir MohamadAhmedEntisarMohamed EldeyAdamAbdelRahim IbrahimNaiemAdamAliIsahMohammedElKhairAbdurrahmanAssistant Prof. Dept. Crop Science, Faculty of Agriculture, University of Kassala, SudanAssociated Prof. Dept. Crop Science Faculty of Agriculture, University of Kassala, SudanAssociated Prof Department of Crop Science, University of Red Sea, SudanProf. of Crop Breeding, Faculty of Agriculture, University of Sinar, SudanA field study was conducted, in order to evaluate the influence of growth and phonological attributes on maize production under water stress at various sowing dates, during 2012/2013 and 013/ 2014 in the Demonstration Farm of the Faculty of Agriculture, University of Kassala at New Halfa, Sudan.The experiment was laid out as split-plot trail arranged in RCBD with 4 replications. The watering treatments were irrigation every 10, 15 and 20 days. At five sowing dates, 15th Oct, 30th Oct, 15th Nov, 30th Nov and 15th Dec. In the two seasons, the prolonged watering intervals 15 and 20 days hastened maize flowering relative to ten days watering interval by more than 3.18% and 3.15%, respectively. The differences among the five sowing dates were highly significant (P≤ 0.01) in the most measured traits in both easons. Whereas, the highest grain yield was produced from first two sowing dates (15th October then followed by 30th October) particularly under ten days watering interval. The increase in yield was associated with significant increases in most of yield related parameters (dry weigh, leaf area and physiological maturity). The positive strong correlations between these characters and grain yield indicated their high contribution to final grain yield.