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    The Effect of Different Pre-sowing Treatments on Seedling Emergence, Quality and Development in Passiflora edulis Seeds
    (Springer, 2023) Uzunoglu, Fulya; Ozmen, Kuebra; Toprak, Seher; Ergan, Emine; Mavi, Kazim
    Passiflora is cultivated for its edible fruits and many features such as flavor properties, aroma, high antioxidant activity in nutrient content, pharmaceutical effects, and ornamental plant feature, which has been widely used for decorative purposes in recent years. It has also been reported that seeds of Passiflora species have physical dormancy due to mechanical and chemical factors. Pre-sowing seed treatments are preferred for breaking dormancy as well as homogeneous seedling growth, increasing the emergence rate, improving seedling quality, high applicability and being economical. In this study, Passiflora edulis Sims f. edulis seeds extracted from fruits were used. Hydropriming, Ferula priming (FER), Tagetes priming (TAG), salt priming (KNO3), hormone priming (GA(3)) and stratification treatments were applied to the seeds before sowing. Results revealed that the highest emergence percentage (60%) and the least mean emergence time (22 days) were obtained from the stratification treatments. The emergence speed index (4.55) and coefficient of velocity of emergence (0.69) gave the highest value of the stratification treatments. In the first seedling measurements made to determine the seedling quality criteria, GA(3), TAG and FER treatments, and in the final seedling measurements, stratification and FER treatments came to the fore. It is recommended that further tests on seedling quality be conducted using variable temperatures and to use it in future studies by changing the times of stratification treatments.
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    INFLUENCES OF PRE-SOWING TREATMENTS ON THE GERMINATION AND EMERGENCE OF DIFFERENT MULBERRY SPECIES SEEDS
    (Univ Life Sciences Lublin, 2019) Gunduz, Kazim; Karaat, Firat Ege; Uzunoglu, Fulya; Mavi, Kazim
    Morus genus includes more than 20 species, some of which are commercially important mulberries with different fruit color and shape. Even though the trees of those species are propagated by rooting of cuttings in practice, mulberry seeds are of importance for breeding studies and rootstock seedling propagation. For that reason, this study was conducted to improve the seed performance of four mulberry species by different pre-sowing treatments including; 3% KNO3, GA(3) at 500 ppm, organic priming with herbal tea brewed from marigold flowers petals and hydro priming Results of the parameters of emergence characteristics and seedling vigor were evaluated. According to the results that varied between different species and pre-treatments, since emergence percentage and time, and seedling vigor were improved by the treatments, it was concluded that pre-sowing applications, especially GA(3) and hydro priming, were beneficial in improving the seed performance of mulberry species included in the study.
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    MORPHOLOGICAL CHARACTERIZATION OF SPONGE GOURD (Luffa aegyptiaca Mill.) GENOTYPES FROM THE EASTERN MEDITERRANEAN REGION OF TURKEY
    (Serbian Genetics Soc, 2021) Mavi, Kazim; Gunduz, Kazim; Uzunoglu, Fulya; Karaat, Firat Ege
    Having wide range of genetic resources, Hatay is the largest sponge gourd producer of province of Turkey. This study was conducted to determine the status and morphological diversity of the livestock breeding with a field survey in the districts of Hatay Province. As a result of the survey, 34 genotypes were collected that thought to be morphologically different. When the distributions of genotypes were examined, the genotypes were selected from Arsuz (5 genotypes), Defne (7 genotypes), Samandag (1 genotypes), Antakya (5 genotypes), Dortyol (6 genotypes), Yayladagi (4 genotypes), Altinozu (4 genotypes), Payas (1 genotypes) and Erzin (1 genotypes). Two genotypes ('31 AN 03' and '31 AL 04') from which the seeds did not germinate were extracted from the morphological characterization studies. Thirty-two genotypes selected from Hatay with 3 genotypes obtained from Adana, South Korea, and China in total of 35 genotypes were compared in terms of 49 different morphological characteristics. Variations between the genotypes were not identified for the observations made on these 49 features regarding cotyledon color, stem shape, tendrils, leaf margin, growth habit, sex type and peduncle separation from fruit. As a result of analysis of basic components and cluster analysis based on morphological characterization features, genotypes were included in six different groups. However, the effect of the districts on which genotypes were collected on this grouping could not be determined.
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    The use of volatile compounds as an alternative method in pepper breeding (Capsicum baccatum var. pendulum)
    (Univ Federal Santa Maria, 2021) Mavi, Kazim; Hacbekir, Hasan; Uzunoglu, Fulya; Turkmen, Musa
    The aim of this study is to determine some fruit characteristics of 19 different lines hybridized by previous regular studies. These lines were examined in order to determine the differences among volatile components and reveal the differences in comparison with the parents. Plant height (cm), fruit weight (g), fruit width (mm), fruit length (mm), fruit flesh thickness (mm), pungency, immature fruit color and mature fruit color were determined of parents and F4 lines. As a result, a wide range of variations were determined between lines and parents in terms of all parameters apart from pungency. Especially in terms of volatile components, it has been found that some active substances are found only in the father and white genotype (Fenchol, spathulenol and geranyl acetate), some of them only in the mother and orange genotype (alpha-terpineol, dihexyl azelate and 2-hexadecanol). It was concluded that volatile compounds of the species can be used as a marker for breeding studies.