Effects of Arbuscular Mycorrhiza, Polymer and Osmoprotectant on Growth and Survival of Russian Olive (Elaeagnus angustifolia L.) Seedlings Under Conditions Where Broadleaf Species Afforestation Fails

Year 2025, Volume: 30 Issue: 1, 327 - 339, 29.04.2025

Mehmet Ali Ünlü , Bülent Toprak , Yasin Karaşin , Derya Eşen , Muhammed Ali Aydın

https://doi.org/10.53433/yyufbed.1566261

Abstract

In water deficit areas, existing stressors are becoming more severe with climate change. Therefore, the aim of this study was to determine the effects of plant supportive treatments (mycorrhiza, polymer, osmoprotectant, polymer + osmoprotectant) on the water stress of seedlings to increase the drought resistance of plants in an area with severe water deficit during the growth period. 1 + 1 Russian olive (Elaeagnus angustifolia L.) seedlings were planted without irrigation in the study area located in the campus area of Izmir Kâtip Çelebi University. In the study, survival rates, diameter and height values, relative growth rates of root collar diameter and shoot height and changes in soil moisture were determined. Although mycorrhiza, polymer and osmoprotectant treatments did not help the seedlings to survive the period of record-breaking temperatures, they were able to extend their survival by two months. In July, when soil moisture levels were the lowest, the polymer and mycorrhiza treatments were 73% higher than the control. Seedlings in mycorrhiza, polymer, osmoprotectant and polymer+osmoprotectant units had about 23% thicker diameter and 73% more relative growth rates of root collar diameter than the control. Seedlings in polymer and osmoprotectant units were about 47% taller than the control, mycorrhiza and polymer+osmoprotectant units. Compared to the control, the seedlings in the other units realized two times more relative growth rates of shoot height.

Keywords

Glycine-betaine , Mycorrhizal fungi , Relative growth rates , Soil moisture , Super-absorbent polymer

Project Number

TUBITAK (BIDEB) 2209-A (Proje no: 1919B012219279) ve İzmir Kâtip Çelebi Üniversitesi Bilimsel Araştırma Projeleri Koordinatörlüğü (Proje No: 2022-GAP-ORMF-0017)

Arbusküler Mikoriza, Polimer ve Osmoprotektanın Yapraklı Tür Ağaçlandırmasının Başarısız Olduğu Koşullarda İğde (Elaeagnus angustifolia L.) Fidanlarının Büyüme ve Yaşam Süresine Etkisi

Abstract

Su açığı bulunan sahalarda iklim değişikliği ile birlikte var olan stres faktörleri daha da şiddetli hale gelmektedir. Bu çalışmanın amacı büyüme döneminde şiddetli su açığı gerçekleşen alanda bitkilerin kuraklığa karşı direncini arttıracak bitki destekleyici işlemlerin (mikoriza, polimer, osmoprotektan, polimer + osmoprotektan) fidanların arazi performansına olan etkilerinin belirlenmesidir. İzmir Kâtip Çelebi Üniversitesi kampüs alanında yer alan çalışma sahasına sulama yapılmaksızın 1+1 yaşlı iğde (Elaeagnus angustifolia L.) fidanları dikilmiştir. Çalışmada fidanların yaşama oranları, çap ve boy değerleri, nispi çap ve boy artımları ve toprak nemindeki değişimler tespit edilmiştir. Mikoriza, polimer, osmoprotektan uygulamaları, fidanların sıcaklık rekorlarının kırıldığı dönemi atlatmasını sağlayamasa da hayatta kalma sürelerini iki ay uzatılabilmiştir. Toprak neminin en düşük olduğu Temmuz ayında polimer ve mikoriza ünitesindeki nem değerleri kontrol ünitesindekine göre %73 daha fazla ölçülmüştür. Mikoriza, polimer, osmoprotektan ve polimer+osmoprotektan ünitelerindeki fidanların kontrole göre yaklaşık %23 daha kalın çapa sahip oldukları ve %73 daha fazla çap artışı gerçekleştirdikleri tespit edilmiştir. Polimer ve osmoprotektan ünitelerindeki fidanların boyunun kontrol, mikoriza ve polimer+osmoprotektan ünitelerine göre yaklaşık %47 daha uzun olduğu belirlenmiştir. Kontrole göre diğer ünitelerdeki fidanlar iki kat fazla nispi boy artımı gerçekleştirmiştir.

Keywords

Glisin-Betain , Mikorizal funguslar , Nispi büyüme oranları , Su tutucu polimer , Toprak nemi

Project Number

TUBITAK (BIDEB) 2209-A (Proje no: 1919B012219279) ve İzmir Kâtip Çelebi Üniversitesi Bilimsel Araştırma Projeleri Koordinatörlüğü (Proje No: 2022-GAP-ORMF-0017)

Thanks

Bu çalışma TUBITAK Bilim İnsanı Destek Programları Başkanlığı (BIDEB) tarafından yürütülen, 2209-A Üniversite Öğrencileri Araştırma Projeleri Destekleme Programı 2022 yılı 2. dönem kapsamında 1919B012219279 no’lu proje ve İzmir Kâtip Çelebi Üniversitesi Bilimsel Araştırma Projeleri Koordinatörlüğü (Proje No: 2022-GAP-ORMF-0017) tarafından desteklenmiştir.

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