Turkish Journal of Field Crops

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2. Beyler İş Hanı, No: 313 Kat: 3 Konak-İzmir

YIELD AND QUALITY PARAMETERS OF WINTER AND SUMMER-SOWN DIFFERENT CAMELINA (Camelina sativa L.) GENOTYPES

Ahmet KINAY , Gungor YILMAZ , Samet AYISIGI , Saziye DOKULEN

Abstract

The present study was conducted to determine the performance of summer and winter-sown camelina lines in 2013-2014 and 2014-2015 growing seasons. In experiments, 11 camelina genotypes (Vinimik 17, PI304269, CR 476/65, CR 1674/90, Ames 26665, Ames 26667, Ames 26673, Ames 26676, Ames 26680, Ames 26686 and Ames 28372) were used as the plant materials. Plant height, number of pod per plant, number of seeds per pod, thousand-seed weight, seed yield, oil ratio and oil yield values were measured. The differences in investigated traits of the genotypes were found to be significant (p<0.05). Winter sowings had better performance than summer sowings for yield and yield components. Winter-sown camelina plants were harvested at the end of May or at the beginning of June, which means that it is a good pre-plant for camelina. Average seed yields varied between 2.127 – 4.943 ton ha-1 in winter sowings and between 0.582 – 4.609 ton ha-1 in summer sowings; oil ratios varied respectively between 32.1 - 33.4% and between 24.3 - 35.1%. It was concluded based on findings that camelina should be produced as winter-sown with Ames-26686 genotype. Furthermore, Ames26680, Ames-26686 and Ames 28372 genotypes could also be grown as summer-sown with quite reliable performance levels in years with sufficient spring precipitations.

Keyword: Oil ratio, oil yield, seed yield, summer sowing, winter sowing ,

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