Current Proceedings on Technology

Yazarlar: Robab Davar, Reza Darvishzadeh, Sodabeh Jahanbakhsh Godehkahriz

Konular:-

Anahtar Kelimeler:Seedling Growth,Development,Sunflower,SAS,Recombinant Inbred Lines.

Özet: The ability of seeds to germinate and establish plantlets in a predictable manner under a range of conditions has a direct contribution to the economic success of commercial crops, and should therefore be considered in plant breeding programs. Seedling growth and development of sunflower were investigated using a population of recombinant inbred lines (RILs) developed through single-seed descent from the cross between ‘PAC2’ and ‘RHA266’. The experimental design was a completely randomized with three replications. Speed of germination, shoot length, root length, fresh root weight, fresh shoot weight, dry root weight, dry shoot weight, seedling emergence, hypocotyle diameter and growth rate was studied. Analysis of variance (ANOVA) on data was performed using the general linear model (GLM) procedure in the SAS software (SAS Institute Inc.). Analysis of variance for all studied traits revealed significant differences (P<0.01) among RILs and their two parents. A large genetic variation was observed for all the studied traits. We found significantly positive correlations between some studied traits. Knowledge of present experiments could offer opportunities for improvement of the efficiency of plant breeding and lines selection with improved seedling growth and development. 

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