Plant Genetic Research
Scientific Journal

Evaluation of Spring Cultivation of Oat Genotypes (Avena sativa L.) Based on Multivariate Statistical Methods

Document Type : Original Article

Authors

Sohbat Bahraminejad
Arash Amiri
Amir Ashrafi
Hazhir Beheshtizadeh

Department of Plant Production and Genetics, Faculty of Agricultural Sciences and Engineering, Razi University, Kermanshah, Iran

https://doi.org/10.22034/pgr.2025.2062435.1002
Abstract
Oat (Avena sativa L.) is one of the most important cereals in the world, recognized as a significant source of essential nutrients for humans and animals. This study was conducted to evaluate and identify high-yielding oat genotypes under spring cultivation during two cropping seasons in Kermanshah Province. In this study, the seeds of 43 oat genotypes were sown in spring using a randomized complete block designs at the Agricultural Research Farm, Faculty of Agriculture and Natural Resources, Razi University, Kermanshah, during the 2019-2020 and 2020-2021 cropping seasons. The experiments were laid out in three replications and evaluated based on grain yield and important agronomic characteristics. The combined analysis of variance revealed a significant genotype × year interaction for all measured traits (P≤0.01). Analysis of variance for each year showed that genotypes differed significantly (P≤0.01) for all measured traits. Based on the results of mean comparisons, it can be concluded that the superior genotypes in terms of grain yield were genotypes 3 and 41. Correlation analysis revealed that grain yield was positively and significantly associated with thousand-grain weight (P≤0.01) while showing a highly significant (P ≤ 0.01) negative correlation with plant height and phenological traits. Path analysis determined that the greatest negative direct effect on grain yield was related to days to anthesis. Cluster analysis also showed that Genotypes 3, 22, and 15 were superior genotypes with desirable agronomic characteristics. Regarding the superior performance in two years and desirable agronomic traits, genotype 3 (Potoroo) was introduced as the superior genotype for spring cultivation. Nevertheless, it is suggested that these genotypes be investigated in more environments to introduce the most stable genotypes for spring cultivation.

Keywords

Cluster analysis
Path analysis
Combined analysis
Yield
Correlation
Oats

Subjects

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Plant Genetic Research
Volume 12, Issue 1
June 2025
Pages 147-166

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