تنوع ژنتيكي در جوهاي بومي ايران و تبعيت آن از تنوع اقليمي

Genetic diversity in the Iranian landraces of barley and its relation to geographical and climatic variation

In order to investigate and determine genetical diversity and its relation to geographical and climatic distribution in the Iranian landraces of barley, 208 samples from Iranian cereal collection were grown. Twenty characters including days to flowering, days to physiological maturity, grain filling period, flag leaf length, flag leaf breath, flag leaf area, the length of extrusion, peduncle diameter, the length of own, the ratio of own length to spike length, the length of flag leaf sheath, the length of spike, plant height, kernel weight per spike, the number of kernel per spike, 1000- kernel weight, spiklets per spike, the internode length of spike, kernel length and its breath were investigated. The importance of all traits for dissociation of zones and climates was revealed by analysis of variance and preliminary studies of difference among samples for mentioned traits. The cluster analysis was based on characteristics and put samples climates in two clusters that comparison of these results with clustering from climatic parameters had showed direct relations between genetic and climatic diversity, but indicated that there was not a clear relation between genetical diversity and geographical classification.