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    Determination of Morphological and Biochemical Responses of Some Cherry Rootstocks to Calcium Stress under In Vitro Conditions
    (2023) İpek, Muzaffer; Arıkan, Şeyma; Pırlak, Lütfi; Eşitken, Ahmet; Şahin, Murat
    High calcium content in the soil is an important abiotic stress factor that limits the yield and survival of plants. While calcareous soils cover more than 30% of the land worldwide, the soils in almost all regions of our country, except for the Black Sea region, have a high calcium content. Fruit species, including cherries, are generally highly sensitive to high calcium content. In this context, the presence of rootstocks that provide tolerance to high calcium content in fruit cultivation and the determination of the tolerance of existing rootstocks to calcium are of great importance. Therefore, this study aims to determine the morphological and biochemical responses of Mazzard, Mahaleb, MaxMa 14, CAP- 6P, and PHL-C rootstocks, which were propagated under in vitro conditions, to different levels of calcium (Control, 1.0%, 3.0%, and 5.0% CaCO3). Under stress conditions, in addition to morphological characteristics such as plant height, root development, leaf area, plant fresh and dry weight, leaf relative water content, and membrane permeability, biochemical characteristics such as catalase, peroxidase, superoxide dismutase, hydrogen peroxide, proline, and protein content, as well as iron activities (iron content in plants, active iron content, iron chelate reductase activity in plants, and iron chelate activity in roots) were determined in stressed plants. In the experiment, it was determined that as the CaCO3 level increased in the medium, the tolerance of the rootstocks decreased. However, measurements taken on the 15th day of the experiment revealed that the MaxMa-14 cherry rootstock showed better growth compared to other cherry rootstocks.
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    The Effect of Mycorrhiza Applications on Growth and Yield in Some Strawberry Cultivars under Calcareous Soil Conditions
    (2023) Arıkan, Şeyma; İpek, Muzaffer; Pırlak, Lütfi; Eşitken, Ahmet; Şahin, Murat
    This study was conducted in the research and practices of greenhouses at the University of Selçuk, Faculty of Agriculture and Horticulture Department. The effects of three different mycorrhiza species and combinations of strawberry plants on plant growth and nutrition were investigated in three different strawberries cultivars. According to the results, it was determined that Glomus chlorodum mycorrhiza alone and in combination increased stem fresh and root fresh weights, leaf relative water content, number of stems, and number of leaves compared to control plants. However, no significant changes could be obtained with mycorrhizal applications on membrane permeability and chlorophyll values in all strawberry varieties used. Nutrient analysis of nitrogen, magnesium, iron, manganese, and boron in the leaves of the application of mycorrhiza with significant increases has been achieved. Glomus etunicatum + Glomus chlorodum and Glomus deserticola + Glomus etunicatum applications had the best results. As a result of this study, it can be suggested that Glomus etunicatum and Glomus chlorodum can be used to promote plant growth in strawberry calcareous soil conditions.