Selection of suitable local vetch genotypes for winter planting under Maragheh rainfed conditions

Document Type : Research Paper

Authors

Dryland Agricultural Research Institute, Agricultural Research Education and Extension (AREEO), Maragheh, Iran

Abstract

Introduction of suitable forage crops for drylands is possible through identification and effective selection of superior genotypes between and within local landraces. 25 local vetch landraces from Vicia villosa, V. panonica and V. sativa were evaluated using simple lattice by accounting for spatial variability to select suitable genotypes for autumn planting in Maragheh research station. Results showed that lattice design with correlated errors along rows and columns, the lattice design and the randomized complete block design with first order auto-correlated errors along rows were the best models and most effective in accounting for spatial variability in forage yield, plant height and days to flowering, respectively. There was not any evidence for fixed trend in this experiment. Based on the selected models, the best linear unbiased estimates for all genotypes were calculated and the superior genotypes were selected based on related standard errors. It was concluded that the criterion used was based on maximum information of the data, so the inferences drawn from the best model for each trait would give the most realistic assessment of the genotypes.   

Main Subjects

Iranian Dryland Agronomy Journal
Volume 4, Issue 2 - Serial Number 8
January 2016
Pages 181-188

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