Turkish Journal of Field Crops

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POSSIBILITY OF COMBINING HIGH YIELD AND RESISTANCE TO FUSARIUM WILT DISEASE USING MOLECULAR MARKERS IN 4 ÉLITE SESAME LINES

Ayman Saber ANTER , Ghada M. SAMAHA

Abstract

Developing a high yielding variety connected with stress-resistant in sesame is a viable option to address the adverse effects of climate change. The objectives of this study were to identify high-yielding and to detect some molecular markers associated with Fusarium wilt resistance in sesame. Five genotypes were evaluated based on seed yield ha-1 over three growing seasons (2016-2018) at two sites, Al-Nubaria (2016-2018) and AbuHammad (2016) in Egypt. Twenty RAPD and five ISSR primers used to detect some markers linked to Fusarium wilt resistance. Genotypes and environments and interaction between them showed high significant variation (p<0.05) for seed yield ha-1. The mean performance of the lines C1.5, C3.8, C6.3, and C1.6, for seed yield ha-1 were higher than check variety by 3.4, 2.8, 0.5 and, 16.7%. Line C1.6 achieved less value of the standard deviation of ranks, based on seed yield ha-1, through environments, indicating that it was less affected by environmental conditions. Molecular marker analysis revealed eight markers linked to Fusarium wilt resistance, they are seven positive markers (five RAPD and two ISSR) which were found in the line C3.8 and absent in the check variety. Finally, both C1.6 and C3.8 offering prospects to form new varieties sesame having high-yield and Fusarium wilt disease resistance.

Keyword: Climatic change, Fusarium wilt, molecular marker, sesamum indicum. ,

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