Paper Details

Study of end-of-season drought stress effects on lengths of peduncles, lengths of extrusions and lengths of flag leaves of irrigated barley lines in moderate regions of Kermanshah province

Sarah Beigzadeh, Korosh Fatahi

DOI: http://dx.doi.org/10.12692/ijb/5.2.74-79

Int. J. Biosci. 5(2), 74-79. July, 2014. (PDF)

Abstract:

In 2009-10, a research was done in order to study the effects of late-season drought stress on yield and yield components of irrigated barely lines with 2 factors of genotype and drought stress in the form of split plot test in the format of complete random blocks with 3 repetition in Islamabad-e Gharb Station (Kermanshah province).For 9 levels of lines MBD-85-3 , MBD-85-6, MBD-85-8, MBD-85-14, MB-85-3, MB-85-5,MB-85-18 and 2 control cultivars Yosuf (D5) and Nosrat, drought stress and genotypes were considered as major and minor factors, respectively. Each plot was set at a 12-m2 area ( each ridge 60 cm). Plant density was set at 400 seeds/m2 with 4-5 cm planting depth. Seeding was performed by winter Schneider test seeder with sprinkler irrigation. Soil test determined the amount and type of fertilizer to be used Results of variance analysis indicated that the differences between cultivars in terms of peduncle length and between irrigation levels were both significant at probability level of 1%, but cultivar x irrigation interactions were not significant at levels of 1% and 5%. Also, results showed that the differences between cultivars in terms of extrusion length and between irrigation levels were significant at level of 1%, but cultivar x irrigation interactions were not. For length of flag leaves, results of variance analysis showed that differences between cultivars in terms of the length of flag leaves and between irrigation levels were significant at level of 1%.