Yazar "Ekincialp, Aytekin" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim
    Öğe
    Bioactive components and antioxidant capacities of different miniature tomato cultivars grown by altered fertilizer applications
    (Springer, 2018) Erdinç, Çeknas; Ekincialp, Aytekin; Gündoğdu, Müttalip; Eser, Fuat; Şensoy, Suat
    This study investigated the organic acid and phenolic compound levels, total phenolic (TP) and antioxidant capacity (TEAC) of three miniature tomato cultivars grown on a farmer's field with three different fertilizer applications. Analysis of phenolic compound (protocatechuic, vanillic, gallic, chlorogenic, caffeic, syringic, p-coumaric and ferulic acid, rutin, quercetin, catechin and phloridzine) organic acid (citric, tartaric, malic, succinic and fumaric acid), TP and TEAC levels in fruit samples showed statistically significant (p < 0.05) differences between tomato cultivars and fertilizer applications. Rutin and chlorogenic acid were the predominant phenolic compounds found in all three cultivars. The highest rutin value (50.48 mg kg(-1) FW) was found in the Black Zebra fertilized with DAP plus organic and biochemical fertilizers and the lowest (20.52 mg kg(-1) FW) in the Black Zebra fertilized with DAP only. The highest chlorogenic acid value (63.31 mg kg(-1) FW) was found in the sweet pea currant fertilized with DAP only and the lowest (21.06 mg kg(-1) FW) in the Black Zebra fertilized with DAP plus chemical fertilizer. Citric acid content was the dominant organic acid in all three cultivars, with the highest citric acid value (6439.50 mg kg(-1) FW) found in the Sweet Pea Currant cherry tomato fertilized with DAP plus organic and biochemical fertilizers and the lowest (2435.20 mg kg(-1) FW) in the Window Box Yellow fertilized with DAP plus chemical fertilizer. Total phenolic and antioxidant levels in the window box yellow were significantly lower as compared to the Black Zebra and sweet pea currant varieties for all three fertilizer applications.
  • Küçük Resim
    Öğe
    Genetic characterization of rheum ribes (wild rhubarb) genotypes in lake Van basin of Turkey through Issr and ssr markers
    (Friends Science Publ, 2019) Ekincialp, Aytekin; Erdinç, Çeknas; Turan, Sibel; Çakmakçı, Özlem; Nadeem, Muhammad Azhar; Baloch, Faheem Shehzad; Şensoy, Suat
    Rheum ribes L. (wild rhubarb) is one of the less known plants to the world and the only species from the Rheum genus present in Turkey. In this study, one R. rhabarbarum (as check genotype) and 80 R. ribes genotypes were collected from different geographical locations of Turkey for the investigation of diversity and genetic structure using ISSR (Inter Simple Sequence Repeat) and SSR (Simple Sequence Repeats) markers. SSR markers reflected higher (100%) polymorphism as compared to the ISSR marker. However, ISSR markers produced higher average Polymorphism Information Content (PIC) value (0.805) than the SSR markers (0.724). A Similar range of (PIC) values with ISSR markers was found greater (0.935-0.395) as compared to the range of SSR makers (0.88-0.47). Using Jaccard similarity index, genetic distance was measured for both markers and average genetic distance was found to be higher with ISSR markers as compared to the SSR markers. Neighbor-joining analysis clustered genotypes into 3 groups for both marker systems. During this study some distinct genotypes like R. rhabarbarum, YYUERC19, YYUERCO9 and YYUNIER65 were investigated that can be used as candidate parents for the development of R. ribes L. varieties. Structure analysis grouped the genotypes according to altitude by clustering genotypes having at more than 2000 m in one group and genotypes less than 2000 m altitude in another group. Genetic variations observed in this study can be applied to investigate various traits of interest for the R. ribes L. breeding. (C) 2019 Friends Science Publishers
  • Küçük Resim
    Öğe
    The impact of potassium sulphate applicatıon on phaseolus vulgaris plants grown under salt stress
    (Parlar Scientific Publications (P S P), 2018) Erdinç, Çeknas; Sönmez, Ferit; Ekincialp, Aytekin; Şensoy, Suat
    The present study aimed to investigate the effects of potassium sulphate on certain bean genotypes after K2SO4 application based on the analysis of plant growth parameters and macro-micro nutrient element content. The study material included 1 bean genotype (Gevas) and 3 bean cultivars (Akman-98, Sugar and Onceler) obtained in Lake Van Basin of Turkey. The plants were grown under controlled conditions at 23 +/- 2 degrees C temperature and 8000 lux light intensity 12 hours light and 12 hours dark photoperiods, with 4 replicates and 8 plants per replicate and randomized lots design. The plants were grown under stress-free conditions until they reached the 3-leaf stage, after which they were exposed to a constant 20 mM salt stress. 500, 1000 and 2000 mg kg(-1) K2SO4 was mixed to the growth medium before seeding except the control plants. Study findings demonstrated the statistical significance of potassium sulphate application especially that of the 1000 mg kg(-1) and 2000 mg/kg-1 potassium sulphate doses, based on several parameters and its effects on the reduction of salt stress were observed. The variations between the genotypes were observed and it was determined that the genotype Gevas and cv. Onceler exhibited higher tolerance. Despite the other parameters, the nutrient element parameters such as K/Na and Ca/Na content and plant development parameters such as shoot dry matter and root dry matter content were effective in determination of the positive effects of potassium sulphate.