Plant Genetic Research
Scientific Journal

Assessment of Genetic Diversity among Peanut (Arachis hypogea L.) Germplasm Using Morphological Traits

Document Type : Original Article

Authors

Mahtab Samadi Gorji 1
Ali Zaman Mirabadi 1
Kambiz Forozzan 2
Mostafa Haghpanah 1

1 Applied Research and Seed Production center, Oilseeds Research and Development Company, Sari, Iran

2 Applied Research and Seed Production center, Oilseeds Research and Development Company, Tehran, Ira

https://doi.org/10.29252/pgr.5.2.85
Abstract
This experiment was conducted to evaluate genetic diversity in 72 peanut accessions (Arachis
hypogaea L.), which introduced from seed bank of Australia in training and seed production research
center of oilseeds company, Iran. Twelve major morphological traits recorded during 2013 growing
season using a randomized complete block design with three replications. The results showed that the
difference between genotypes for all traits was significant. In addition, coefficient of phenotypic
variation was greater than coefficient of genotypic variation for all traits, indicating the effect of
environment on recorded traits. The broad-sense heritability ranged from 80.25% (for seed width) to
99.54% (for 100 seed weight) and was 96.85% for grain yield. The highest phenotypic and genotypic
coefficients of variation obtained for the pod weight, thus, it is possible to improve this trait by
selection method and this trait could use as a selection index to improve grain yield. Genetic
correlation indicated a high significant correlation between grain yield with grain weight and pod
yield. The studied genotypes divided to four groups by cluster analysis based on Ward method.

Keywords

Peanut
Cluster analysis
Genetic diversity
Morphological traits
Plant Genetic Research
Volume 5, Issue 2
December 2018
Pages 85-94

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