Turkish Journal of Field Crops

Phone:

90 232 311 26 79

Email:

contact@field-crops.org

Address:

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

YIELD STABILITY OF SOME TURKISH WINTER WHEAT (Triticum aestivum L.) GENOTYPES IN THE WESTERN TRANSITIONAL ZONE OF TURKEY

Fahri ALTAY

Abstract

The purpose of the study was to evaluate the yield performance and stabilities of certain winter bread wheat cultivars grown widely in the winter wheat regions of Anatolian peninsula. Eight varieties were grown at 10 locations between 2007 and 2011 cropping seasons, in a field trial arranged in Randomized Complete Block Design with 4 replications. The combined analysis of variance was performed for the data obtained. The significant genotype x environment interactions were further investigated by the regression and the ecovalance analyses. It was concluded that cultivars Kate A1 and Mufit bey were found to be the most stable genotypes for all the environments whereas cultivar Gerek-79 was found to be the best performer for under poor soil and weather conditions.

Keyword: bread wheat, yield performance, genotype x environment interaction, stability. ,

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