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THE DETERMINATION OF FATTY ACIDS COMPOSITION AND OIL QUALITY FACTORS OF SOME PEANUT VARIETIES HAVING DIFFERENT MARKET TYPES AT DIFFERENT HARVESTING TIMES IN MAIN AND DOUBLE CROP GROWING SEASONS IN MEDITERRANEAN REGION

Halil BAKAL , Halis ARIOGLU

Abstract

The objective of this study was to determine the fatty acids composition and oil quality factors of some peanut varieties having different market types at different harvesting times in main and double crop growing seasons in Mediterranean region. This study was conducted in the experimental area of the Cukurova University Faculty of Agriculture Department of Field Crops as a main and double crop in 2015 and 2016. The experimental design was a split plot with three replications. Five peanut varieties, including Halisbey, NC-7, G.Green, Florispan and G.Red, belonging to four different market types, were used as plant material in this research. According to a two-year average, the differences between the peanut varieties were significant for the oil content, oleic, linoleic, palmitic, stearic and lignoceric acids percentage and oil quality values at different harvesting times in the main and double crop growing season. The results indicated that the data belonging to oil content, oleic and stearic acids percentage were increased when the harvesting was delayed, and that linoleic, palmitic and lignoceric acids percentage of seed was decreased. Stearic acid and oleic acid percentage and O/L ratio was higher in main crop growing season and oil content, linoleic acid percentage and iodine value was higher in double crop growing season.

Keyword: Peanut, harvesting time, fatty acid, oil quality factors ,

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN

Abstract

A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.

Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding

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THE DETERMINATION OF FATTY ACIDS COMPOSITION AND OIL QUALITY FACTORS OF SOME PEANUT VARIETIES HAVING DIFFERENT MARKET TYPES AT DIFFERENT HARVESTING TIMES IN MAIN AND DOUBLE CROP GROWING SEASONS IN MEDITERRANEAN REGION

Abstract

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Abstract

The Journal includes only the original research papers about breeding and genetics, agronomy, physiology, forage crops, medicinal and aromatical plants, biotechnology and utilization.

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