The phenolic compound contents and antioxidant activities of the leaf extracts of nine olive genotypes were determined, and the obtained data were analysed using chemometric techniques. In the crude extracts, 12 compounds belonging to the secoiridoids, phenylethanoids, and flavonoids were identified. Oleuropein was the primary component for all genotypes, exhibiting a content of 21.0 to 98.0 mg/g extract. Hydroxytyrosol, verbascoside, luteolin 7-O-glucoside, and luteolin 4′-O-glucoside were also present in noticeable quantities. Genotypes differed to the greatest extent in the content of verbascoside (0.45–21.07 mg/g extract). The content of hydroxytyrosol ranged from 1.33 to 4.03 mg/g extract, and the aforementioned luteolin glucosides were present at 1.58–8.67 mg/g extract. The total phenolic content (TPC), DPPH• and ABTS•+ scavenging activities, ferric reducing antioxidant power (FRAP), and ability to inhibit the oxidation of -carotene-linoleic acid emulsion also varied significantly among genotypes. A hierarchical cluster analysis enabled the division of genotypes into three clusters with similarity above 60% in each group. GGE biplot analysis showed olive genotypes variability with respect to phenolic compound contents and antioxidant activities. Significant correlations among TPC, FRAP, the values of both radical scavenging assays, and the content of oleuropein were found. The contents of 7-O-glucoside and 4′-O-glucoside correlated with TPC, TEAC, FRAP, and the results of the emulsion oxidation assay.

Key words: white bean, phenolic compounds, antioxidant activity, FRAP, ABTS, β-carotene-linoleic acid emulsionThe antioxidant potential and phenolic compounds content were investigated in ten white bean varieties widely consumed in Turkey. Total phenolic contents of seeds varied between 0.33 and 0.63 mg GAE/g. The Trolox Equivalent Antioxidant Capacity (TEAC) determined by the ABTS assay and the Ferric-Reducing Antioxidant Power (FRAP) of bean varieties ranged from 3.50 to 5.17 μmol Trolox/g seed and from 7.99 to 11.20 μmol Fe 2+ /g seed, respectively. Strong correlations were found between total phenolic content and FRAP (r=0.850) and between TEAC and FRAP (r=0.734). The antioxidant activity was investigated in a β-carotene-linoleic acid model system, as well. Differences in the inhibition of emulsion oxidation by extracts of white bean varieties were slight. The RP-HPLC fi ngerprint analysis of extracts showed the presence of fi ve dominant phenolic compounds which were described as ferulic or caffeic acids derivatives. Four of them signifi cantly contributed to reducing power and antiradical activity against ABTS•+ of extracts.

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This research was carried out in the Field Crop Department, Tekirdağ Agriculture Faculty, and Plant Breeding Application and Research Centre, Trakya University, Turkey. The response of common vetch (Vicia sativa L.) seedlings to salt and available water level tolerance were compared for its water retention capability and the dry ma�er of shoots, root and shoot weights a�er 2 h incubation at 30°C and 1 h incubation at 105°C under the conditions of absence, as well as the presence of various levels of salinity and available water. Germination was not affected by the salinity and available water treatments. 1.35 dS/m salinity water treatment resulted in increasing the fresh weights of its shoot (1.179 g) and root (0.580 g), weights a�er 2 h incubation at 30°C (shoot: 0.0456 and root: 0.0325 g) and 1 h incubation at 105°C (shoot: 0.0104 g and root: 0.0073 g), water retention capability (0.0123 g) and dry ma�er (0.0236 g) of the shoot in seedlings. The highest fresh weight (root: 0.567 g and shoot: 1.113 g) and water retention capability (0.0112 g) were determined from capacity of the field.

The interrelationships among the grain protein, oil, fatty acids, starch, Na, K, Fe concentrations and chemical grain characteristics were determined by correlation analyses in thirty-five commercial dent corn hybrids. An increase in oil content of the corn is accompanied by a decrease in starch content and by an increase in caproic acid content. The correlation coefficients involving protein content of corn hybrids with oil content (r = 0.066) and with saturated fatty acid (SFA) (r = -0.247*) evidence that protein content is more related to fatty acid distribution than the oil quantity. Linear relationships between refractive index (RI) (nD40 ºC) and saturated fatty acid (r = 0.369**) and between refractive index and oleic acid (r = 0.364**), and between iodine number (IN) and unsaturated fatty acid (UFA) were determined. In addition, oleic acid is strongly correlated with linoleic (r = -0.769**) and linolenic acids (r = -0.335**).

This research was carried out in the Experimental Field of Tekirda đ Agricultural Faculty. Two common vetch varieties and 5 lines were sown with 150 seeds/m 2 plant density according to a randomised block design. Some important yield related characters such as plant height, number of branches, number of pods per plant, number of seeds per pod, pod width, pod length, 1000 seed weight, fodder and seed yield were examined. The results of variance analysis showed that the effects of genotype, year and their interaction on number of branches and number of pods per plant were all significant. In addition, the effect of year and variety on plant height and seed yield were found to be significant. Moreover, the number of seeds per pod, pod width and pod length were found to be significant in variety and year × variety interaction. There was only a difference between years for 1000 seed weight and fodder yield. According to the results, genotype 283 and Tokat had similar performance to that of commercial cultivars (Ürem, Kubilay). Especially the fodder and seed yield of genotype 283 were found to be higher than those of the cultivars (Ürem, Kubilay).

iki yıl süre ile tesadüf blokları deneme deseninde bölünmüş parseller deneme desenine göre genotipler ana parselleri, biçim zamanları alt parselleri oluşturacak şekilde üç tekrarlamalı olarak yürütülmüştür. Denemede materyal olarak Egebeyazı ve Sarıefe çeşitleri ile 47.1, 47.2 ve 56.3 nolu çeşit adayları materyal olarak kullanılmıştır. Araştırmada 3 farklı gelişme döneminde (çiçeklenme başlangıcı, %50 çiçeklenme dönemi, tam çiçeklenme) hasat edilen Macar fiğin (Vicia pannonica Crantz.) verim ve kalite yönünden en uygun hasat zamanının belirlenmesi amaçlanmıştır. Araştırmanın iki yıllık ortalama sonuçlarına göre, en yüksek yeşil ot verimi çiçeklenme başlangıcı döneminde (1836.00 kg/da), 47.2 nolu genotipte (1713.78 kg/da), biçim zamanı x genotip interaksiyonunda ise çiçeklenme başlangıcı döneminde 47.2 nolu genotipte (2234.00 kg/da) belirlenmiştir. En yüksek kuru ot verimi tam çiçeklenme döneminde (401.00 kg/da), 47.2 nolu genotipte (387.33 kg/da), biçim zamanı x genotip interaksiyonunda ise tam çiçeklenme döneminde Sarıefe çeşidinde (451.33 kg/da) belirlenmiştir. En yüksek ham protein oranı %18.85 ile çiçeklenme başlangıcı döneminde, %17.17 ile 47.1 nolu genotipte, biçim zamanı x genotip interaksiyonunda ise çiçeklenme başlangıcı döneminde 47.1 nolu genotipte (%19.98) saptanmıştır. En yüksek ADF ve ADL oranı %37.02 ve %6.49 ile tam çiçeklenme döneminde, %33.93 ve %5.71 ile Egebeyazı çeşidinde, biçim zamanı x genotip interaksiyonunda ise tam çiçeklenme döneminde Egebeyazı çeşidinde (%19.98 ve %7.08) saptanmıştır. En yüksek NDF oranı ise %47.20 ile tam çiçeklenme döneminde, %47.05 ile Sarıefe çeşidinde belirlenmiş, biçim zamanı x genotip interaksiyonu ise istatistiki olarak önemli bulunmamıştır. İki yıl süre ile yürütülen araştırmada; ilk yıl iyi gelişme gösteren Macar fiğinden %50 çiçeklenme döneminde en yüksek yeşil ot verimi alınmıştır. İkinci yıl yağışlı başlayan bahar ayının kurak sezonla devam etmesi nedeni ile en yüksek verim çiçeklenme başlangıcında (2178.67 kg/da) alınmış, onu izleyen her iki dönemde de verim düşüşü yaşanmıştır.

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