Scopus
YÖKSİS Eşleşti
Evaluation of the Ameliorative Effects of Exogenous Herbal Saponin Application On Wheat (Triticum aestivum L.) Genotypes Under Drought Stress
Journal of Crop Health · Ekim 2025
YÖKSİS Kayıtları
Evaluation of the Ameliorative Effects of Exogenous Herbal Saponin Application On Wheat (Triticum aestivum L.) Genotypes Under Drought Stress
Journal of Crop Health · 2025 SCI-Expanded
DOÇENT NURCAN YAVUZ →
Makale Bilgileri
DergiJournal of Crop Health
Yayın TarihiEkim 2025
Cilt / Sayfa77
Scopus ID2-s2.0-105017475802
Özet
Drought stress, namely water-deficit stress, is a major constraint on plant growth and productivity, particularly in rainfed agricultural systems. Saponins, a class of plant-derived secondary metabolites within the terpenoid group, are not directly involved in essential physiological processes but may contribute to plant responses to abiotic stress. However, their role in early-stage drought stress tolerance and the underlying physiological and biochemical mechanisms remains insufficiently understood. This study investigated the effects of foliar applied saponin (0%, 1%, 3%, and 5%) on two wheat cultivars with contrasting drought tolerance, Dağdaş 94 (tolerant) and Aldane (sensitive), under four irrigation regimes: no stress (NWS), light (LWS, 25%), moderate (MWS, 50%), and severe water stress (SWS, 75%). The greenhouse experiment followed a completely randomized design with three replications. Saponin had a significant effect on root length, while shoot growth in Dağdaş 94 improved with 1% saponin under NWS but was inhibited by 5% under SWS. Biomass production was generally unaffected by genotype or treatment, although the lowest values occurred at 3% saponin. Water use efficiency (WUE) increased with stress severity but was not influenced by saponin. Water stress substantially elevated hydrogen peroxide (H<inf>2</inf>O<inf>2</inf>) and malondialdehyde (MDA), confirming oxidative damage. Saponin modulated these effects depending on concentration and genotype. Notably, 5% saponin under SWS caused the greatest H<inf>2</inf>O<inf>2</inf> and MDA accumulation in Aldane, while 1–3% saponin reduced MDA under MWS in both cultivars. Antioxidant enzyme activities (SOD, POD, APX) generally increased with stress and saponin, though 3% saponin limited POD induction in Dağdaş 94. Overall, moderate saponin concentrations (1–3%) improved antioxidant responses and reduced oxidative damage under water stress, highlighting its potential as a bioactive treatment to enhance drought resilience in wheat.
Yazarlar (10)
1
Aslı Güleç
2
Nurcan Yavuz
3
Aras Türkoğlu
4
Esra Arslan Yüksel
5
Meti̇N Armağan
6
Kamil Haliloglu
7
Duran Yavuz
8
Atom Atanasio Ladu Stansluos
9
Guleray Agar
10
Jan Bocianowski
Anahtar Kelimeler
Abiotic stress
Antioxidants
Drought
Exogenous
Saponin
Wheat
Kurumlar
Atatürk Üniversitesi
Erzurum Turkey
Gazi Üniversitesi
Ankara Turkey
Necmettin Erbakan Üniversitesi
Meram Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Uniwersytet Przyrodniczy w Poznaniu
Poznan Poland
Upper Nile University
Malakal South Sudan