Evaluation of genetic diversity in red clover collection at National Plant Gene Bank of Iran | ||
| تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران | ||
| Article 7, Volume 15, Issue 4, February 2008, Pages 324-335 PDF (362.53 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijrfpbgr.2008.114943 | ||
| Author | ||
| mohammadreza abbasi* | ||
| Seed and Plant Improvement Institute, Karaj, Iran. | ||
| Abstract | ||
| Red clover (Trifolium pratense) is a perennial forage legume being cultivated as a forage crop, some parts of the world. Seeds of 213 accessions conserved in Iranian red clover collection were sown in field, Karaj, Iran. Agro-morphological traits were characterized according to IPGRI descriptors during 2003-2005. Coefficient of variation and Shannon index showed high levels of diversity for each trait. Erect growth habit as a desirable agronomic trait was observed in 17% of accessions. Length of main stem at flowering stage ranged from 5 to 65 cm; with a mean of 30.6 cm. Accessions from Oroomieh, Arak, Babol, Daregaz, and Sardasht with more than 50 cm stem length at flowering stage could be used as potent germplasms in breeding, for this trait. High diversity for days to flowering would provide a flexibility to reach early, moderate, and ripening cultivars. Multiple regression analysis showed a linear relationship between main stem length and plant hairiness, days to flowering, and growth habit traits. Cluster analysis classified the origin of germplasms in four groups. The origin of material with the same climate appeared together in the same cluster. Because of high levels of diversity in the first gene pool of red clover collection, this collection can play a key role in red clover breeding programs in Iran. | ||
| Keywords | ||
| Red clover; germplasm and genetic diversity | ||
| References | ||
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