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3 Acta Scientiarum Polonorum. Hortorum Cultus

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A comparative study on pomological traits, fatty acid composition and volatile aroma compounds of irrigated and rain-fed almond

100%

Karaat F. E.

nr 1

Rain-fed agriculture is a common growing system relies on rainfall for water requirements of crops. This fact brings some drawbacks in cultivation that causes significant differences in yield and quality. However, fruits from rain-fed trees are generally accepted as better tasting thanks to their richer flavor and aroma compounds. This study compares pomological parameters, some selected chemical properties, fatty acid composition and volatile aroma compounds of irrigated and rain-fed grown ‘Ferragnes’ and ‘Ferraduel’ almond cultivars. Results indicated significant differences between cultivars and growing systems. Total oil was significantly lower in rain-fed samples (24.8% for ‘Ferragnes’ and 24.9% for ‘Ferraduel’) when compared with irrigated samples (44.1% for ‘Ferragnes’ and 40.2% for ‘Ferraduel’). Palmitic and oleic acid was higher in irrigated samples, whereas linoleic acid was higher in rain-fed samples. Most of the aroma compounds detected in this present study are new record for almond aroma-active compounds. In an overall view, rain-fed samples resulted with higher contents of aroma compounds.

Pomological and phytochemical evaluation of different cherry species: mahaleb (Prunus mahaleb L.), wild sweet cherry (Prunus avium L.) and wild sour cherry (Prunus cerasus L.), sweet and sourcherry cultivars

51%

Karaat F. E. , Gunduz K. , Saracoglu O. , Yildirim H.

2019

tom 18

nr 4

Cherries are known as health friendly fruits due to their abundant phytochemical compositions. This study was conducted to determine phytochemical and pomological fruit properties of different cherry species including mahaleb (Prunus mahaleb L.), wild sweet cherry (Prunus avium L.), wild sour cherry (Prunus cerasus L.), two sweet cherries (‘Napoleon’ and ‘Starks Gold’) and one sour cherry (‘Kütahya’) cultivars. For this aim, together with various pomological traits, total phenolics and anthocyanin contents, antioxidant capacity, organic acids, sugars, were analyzed in fruits of relevant genotypes. Results of all examined traits significantly varied between genotypes. Mahaleb showed the highest TSS (30.17%), fructose (8.71 μg/g) and glucose (20.74 μg/g) contents. Wild sour cherry gave the highest antioxidant capacity (13.25 mmol TE/ kg total weight), anthocyanin (351.0 mg Pg-3-glk/kg total weight), citric acid (0.56 μg/g) and malic acid (2.96 μg/g) contents. As a rootstock, mahaleb was found to be superior in some of the traits when compared to wild sweet cherry. Significant correlations were observed between various traits. Additionally, principal component analysis (PCA) revealed different relationships among the traits and evaluated genotypes.

Influences of pre-sowing treatments on the germination and emergence of different mulberry species seeds

51%

Gunduz K. , Karaat F. E. , Uzunoglu F. , Mavi K.

nr 2

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, GA3 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 GA3 and hydro priming, were beneficial in improving the seed performance of mulberry species included in the study.