Investigation of genetic variation in tall wheat grass (Agropyron elongatum (Host) Beauv.) populations

Document Type : Research Paper

Authors

1 Agricultural Biotechnology Research Institute of Central region of Iran

2 Department of Agronomy and Plant Breeding, Isfahan University of Technology.

3 - Department of Agronomy and Plant Breeding, Isfahan University of Technology.

Abstract

The objectives of this experiment were to study genetic variation and relationships among 11 traits in23 accessions of Agropyron elongatum for two years. The experiment was conducted in Agricultural Biotechnology Research Institute of Central region of Iran research farm using a randomized complete block design with 3 replications. Results of variance analysis showed significant differences between the accessions for all of the traits in the first year and most traits in the second year. The results also showed that there was considerable phenotypic and genotypic variation for forage yield and number of stems per plant. Broad-sense heritability was high (63-84%) for forage yield, days to heading, crown diameter and plant height. Forage yield per plant had a significant (P<0.01) negative correlation with days to heading (r = -0.53) and days to pollination (r=-0.64), but a significant (P<0.01) positive correlation with plant height (r = 0.33), flag leaf width (r = 0.41), number of stems (r = 0.6) and crown diameter(r = 0.4). 

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References

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