Comparison of Two and Six-rowed Barley (Hordeum vulgare L.) Genotypes under Rainfed Conditions for Yield, Quality and Biotic Stress Tolerance

Year 2023, Volume: 9 Issue: 2, 98 - 105, 01.08.2023

İrfan Öztürk Banu Tülek Remzi Avcı Turhan Kahraman Adnan Tülek

Abstract

Barley is an essential crop in the Trakya region and it grows for feed and malting in the region. The experiments were
carried out in the 2016-2017 growing cycle and composed of 36 two-rowed and 36 six-rowed barley genotypes in alphalattice blocks with three replications. The characters such as grain yield, net blotch, scald, plant height, days of heading,
1000-kernel weight (TKW), test weight (TW) and protein ratio and relationship among them were investigated in the
study. The genotypes were screened for scald and net blotch under natural epidemic conditions. According to the results,
there were significant differences among genotypes for the parameters investigated in the study. The means of grain yield
for two-rowed and six-rowed genotypes were 8576 kg ha-1 and 8454 kg ha-1 respectively. In two-rowed genotypes mean
1000-kernel weight was 51.2 g, test weight 72.9 kg and protein ratio 11.6%. In six-rowed genotypes mean TKW was
37.0 g, TW 69.5 kg and protein ratio 10.8%. In two-rowed genotypes based on double-digit scores, a total of 11 barley
genotypes highly tolerant to Net blotch (Pyrenophora teres) scored between 11 and 33. Net blotch effect on grain yield,
1000-kernel weight, test weight and protein ratio were slightly negative for two-rowed genotypes. Scald leaf disease
negatively affected 1000-kernel weight (r=-0.391*) and test weight (r=-0.482**). Scald leaf disease also negatively
affected grain yield. In the study, 5 genotypes from the 2-rowed experiments and 2 genotypes from a 6-rowed experiment
were selected for breeding studies based on parameters investigated.

Keywords

Barley, genotype, grain yield, quality parameter, biotic stress

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