2012 Cilt 26 Sayı 2

Permanent URI for this collectionhttps://hdl.handle.net/11452/2062

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Browsing by Subject "Bitki su tüketimi"

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    Responses of maize to full and limited irrigation at different plant growth stages
    (Uludağ Üniversitesi, 2012-12-07) Kuşçu, Hayrettin; Demir, Ali Osman; Uludağ Üniversitesi/Mustafakemalpaşa Meslek Yüksek Okulu.; Uludağ Üniversitesi/Ziraat Fakültesi/Biyosistem Mühendisliği Bölümü.
    This study was carried out to investigate the relationships between yield and irrigation water applied at different growth stages and to determine the most critical stage(s) for maize (Zea mays L.) in a sub–humid environment. A rainfed (non–irrigated) treatment as the control, full irrigation (VFG) and 15 different irrigation treatments (V, F, G, VF, VG, FG, V75FG, V50FG, V25FG, VF75G, VF50G, VF25G, VFG75, VFG50 and VFG25) with full or limited (25, 50 and 75%) irrigation water, were applied to the hybrid Pioneer 31P41 (Pioneer Seed Company) planted on clay-loam soil, at three critical development stages: vegetative (V), flowering (F), and grain-filling (G) in the years of 2008 and 2009. The highest seasonal evapotranspiration (an average of 1133 mm) was measured in the VFG treatment. Limited irrigation applied at different growing stages had different effects on the yield–related characters examined. According to average of two years, the highest grain yield (20.52 t ha–1 ) and dry matter yield (33.78 t ha–1 ) were obtained from the VFG and VFG75 treatments, respectively. Therefore, we confirm that VFG and VFG75 irrigations are the best choice for maximum yield under the local conditions. The flowering and vegetative were also determined as the most sensitive stages to water deficit of maize.