Study of Advanced Mutant Rapeseed Lines in Cold Regions of Iran

Document Type : Research Paper

Authors

Abstract

      In this research 22 rapeseed mutant lines and their parents were evaluated with three cultivars under four different environmental conditions in a randomized complete block design with three replication in 2015- 2016. The results of experiment showed significant differences between genotypes in case of number of days to flowering, number of days to the end of flowering, the length of flowering, number of days to maturity and oil yield. The evaluated traits also showed significant differences under different environmental conditions. The average  of seed yield of genotypes in  Karaj, Mashhad, Kermanshah and Esfahan locations were measured 3025,4096,5111 and 2906 kg.ha-1, respectively.Genotypes Z-800-3, Z-900-8 and T-900-5 with 245,244 and 245 days till maturity belonged to early maturity genotypes. Also, lines Z-900-8 with 4342 kg.ha-1had highest seed yield between Zarfam mutant lines in four places. Between Talayeh mutant lines, the highest seed yield was determined in T-800-6 with 4102 kg.ha-1, respectively. Also in the Express cultivar, the highest seed yield revealed in mutant line Exp-800-1 with 4083 kg.ha-1seed yield. The results of combined analysis of variance and seed yield ranking showed that Z-900-8 genotype with average 4342 kg grain per hectare and lowest ranking mean(5.7) as well as lowest ranking variance (7.5) determined as adaptable cultivar with high stability is suitable for cultivating in cold regions.
 

Keywords

References

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JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
Volume 29, Issue 4
December 2019
Pages 175-187

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