TY - JOUR T1 - The effect of supplemental irrigation and exogenous application of glycine betaine on chickpea performance in the semi-arid region TT - Yarı kurak bölgede ilave sulama ve ekzojen glisin betain uygulamasının nohut performansına etkisi AU - Janmohammadi, Mohsen AU - Kouchakkhani, Hasan AU - Sabaghnia, Naser PY - 2024 DA - July Y2 - 2024 DO - 10.20289/zfdergi.1402726 JF - Journal of Agriculture Faculty of Ege University PB - Ege Üniversitesi WT - DergiPark SN - 1018-8851 SP - 189 EP - 199 VL - 61 IS - 2 LA - en AB - Objective: The objective of this study was to evaluate the effect of foliar spraying of different concentrations of glycine betaine as an osmotic regulator and supplemental irrigation under rainfed conditions on chickpea growth and yield.Material and Methods: Simultaneous effects of foliar spray of glycine betaine (0 mM: GB0, 25Mm: GB25, and 50 Mm: GB50) and different levels of irrigation (RF: rainfed or no irrigation, SI1: supplemental irrigation during flowering stage, SI2: two supplemental irrigations during flowering and podding, and FI: full irrigation) were assessed on the morphophysiological characteristics of chickpeas under field condition in the western part of Iran.Results: The effect of SI treatments on the growth was much more noticeable than GB foliar application. Utilization SI2 + GB25 significantly improved chlorophyll content, pod and seed number, hundred seed weight, and biological yield. SI1 and SI2 increased grain yield by 30% and 62%, respectively, compared to RF conditions. Conclusion: Taken together, two supplemental irrigation during flowering and podding along with foliar spray of GB25 as a reasonable management options increased seed yield and the water use efficiency. KW - Chlorophyll KW - drought stress KW - evapotranspiration KW - pod number KW - rainfed KW - water productivity N2 - Amaç: Bu çalışmada, doğal yetiştirme koşulları altında ozmotik düzenleyici olarak farklı konsantrasyonlarda glisin betainin yapraklara uygulamasının ve ilave sulamanın nohutta büyüme ve verim üzerindeki etkisinin değerlendirilmesi amaçlanmıştır.Materyal ve Yöntem: İran'ın batısında tarla koşullarında, yapraklara glisin betain uygulamasının (0 mM: GB0, 25Mm: GB25 ve 50 Mm: GB50) ve farklı sulama düzeylerinin (RF: yağmurla sulama veya sulamasız, SI1: çiçeklenme döneminde ek sulama, SI2: çiçeklenme ve bakla bağlama döneminde iki ilave sulama ve FI: tam sulama), nohutun morfofizyolojik özellikleri üzerindeki etkileri değerlendirilmiştir.Araştırma Bulguları: SI uygulamalarının büyüme üzerindeki etkisi, GB yaprak uygulamasına göre çok daha belirgin olmuştur. SI2 + GB25 kullanımı klorofil içeriğini, bakla ve tohum sayısını, yüz tane ağırlığını ve biyolojik verimi önemli ölçüde iyileştirmiştir. SI1 ve SI2, RF koşullarına kıyasla tane verimini sırasıyla %30 ve %62 artırmıştır.Sonuç: Sonuçlar birlikte ele alındığında, uygun bir yönetim seçeneği olarak çiçeklenme ve bakla bağlama döneminde iki ilave sulama ile GB25'in yaprağa uygulaması, tohum verimini ve su kullanım etkinliğini artırmıştır. CR - Ayaz, S., B. A. McKenzie & G. D. Hill, 1999. The effect of plant population on dry matter accumulation, yield and yield components of four grain legumes. Interaction, 105 (5.1): 4-5. CR - Benali, A., N. El Haddad, S.B. Patil, A. Goyal, K. Hejjaoui, A. El Baouchi, F. Gaboun, M. Taghouti, M. Ouhssine & S. Kumar, 2023. Impact of terminal heat and combined heat-drought stress on plant growth, yield, grain size, and nutritional quality in chickpea (Cicer arietinum L.). 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