Esmaeil Gholinezhad; Reza Darvishzadeh; abbas abhari
Abstract
In order to investigate the genetic diversity and the heritability of oil and protein content of seed in lines of sesame under different irrigation regimes and mycorrhizal fungi, 8 lines of sesame were studied in three separate experiments as factorial split plot layout based on a randomized block complete ...
Read More
In order to investigate the genetic diversity and the heritability of oil and protein content of seed in lines of sesame under different irrigation regimes and mycorrhizal fungi, 8 lines of sesame were studied in three separate experiments as factorial split plot layout based on a randomized block complete design with three replications in research field of Agricultural Research Center, West-Azerbaijan in 2015 and 2016 cropping seasons. The main plots (factor A and B) consisted of three different irrigation regimes and factor B included three levels: two species of mycorrhiza fungi Glomus mosseae, Glomus intraradices and non-inoculated (control). Sub plots (factor C) consisted of eight sesame lines. Studied traits were including oil percentage and yield, protein percentage and yield, nitrogen percentage and chlorophyll index. Under optimum irrigation conditions, the maximum heritability was observed for protein percentage (0.88) and chlorophyll index (0.79) in inoculation with mycorrhizal fungi G. mosseae. Also, under moderate drought stress, the highest heritability was observed in chlorophyll index (0.70) and protein percentage (0.63) in inoculation with mycorrhizal fungi G. mosseae. In nine different environments of experiment, the maximum genetic variation of traits was observed for chlorophyll index, oil yield and protein yield. In all three irrigation conditions, the most phenotypic, genetic and environmental variance was observed in traits of chlorophyll index and protein yield. Therefore, with selecting traits such as chlorophyll index and protein percentage in breeding programs would improve oil and protein yield.
