Akademik Veri Yönetim Sistemi
DER ERWERBSOBSTBAU, cilt.65, ss.1941-1953, 2023 (SCI-Expanded)
Abiotic stresses are the most common stress factors that plants encounter. Nutrient uptake problems caused by high lime content and high pH values seen in most soils are also among the abiotic stress factors. Eliminating this stress factor is not possible and approaches that will increase the plantʼs resistance are of great importance. Thus it is extremely important to find alternatives that are natural, easy to use, practicable and harmless to human health. Hormones are effective in plant stress physiology and play an active role in stress tolerance. One of the substances that are introduced as new generation hormones are strigolactones (SL). It has been determined that SL undertake important functions in stress metabolism. This research aimed to provide resistance to lime stress with SL applications on the ‘Hasandede’ grape variety grafted to ‘1103 P’ rootstock in pot culture conditions in a greenhouse. Different concentrations of calcium oxide (CaO) (0%, 10% and 25%) were applied to the root area of the plants and SL were applied (0 µM, 1 µM, 3 µM and 5 µM) by pouring to the root regions. Samples were taken at 2, 12, 24, 48, and 96 h later after the SL applications. Physical (degree of damage, shoot length, average number of leaves per shoot) and biochemical (membrane injury index, chlorophyll, proline, soluble protein and lipid peroxidation) were examined on the samples. In biochemical features, the highest membrane damage (31.41%) and the lowest chlorophyll content (20.64 SPAD) were determined in the plants at the highest lime dose without SL application. Lipid peroxidation (1.40 nM/g) was five times higher in SL control plants than in SL treatment plants (0.28 nM/g). The data obtained from physical and biochemical analyses show that SL applications have the potential to be used in reducing the damage caused by calcareous environments in grapevine.