Abstract: Abstract This study was carried out to understand the relationships between yield and irrigation water applied at different growth periods and to determine the most critical period(s) for sunflower. A rainfed (non-irrigated) treatment as the control and 13 different irrigation treatments (H, F, M, HF, HM, FM, HFM, H 60 FM, H 40 FM, HF 60 M, HF 40 M, HFM 60 , HFM 40 ) with full (about 360 mm) or limited (40 and 60%) irrigation water, were applied to the hybrid Sanbro (Novartis Seed Company) planted on clay soil, at three critical development per...
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