التوصيف الظاهرى لبعض أصناف القمح الطري Triticum aestivum L. المحلية تحت نظام الرى التكميلى بدولة ليبيا

Abstract EN

A field experiment was conducted at the experimental station of the Faculty of Agriculture, University of Tripoli, Libya during the growing season 2017/2018, in order to evaluate the phenotypic diversity of eight local cultivars of soft wheat (Triticum aestivum) under supplementary irrigation conditions.

The experiment was designed according to the RCBD design.

Twenty-eight morphologhical characteristics were determined during different stages of plant growth in accordance with the instructions of the International Union for the Protection of New Varieties of Plants (UPOV).

The results indicated that there were a phenotypic variations among the cultivars in twenty-six morphological characteristics.

The genetic variation between the studied wheat genotypes ranged from 0.025 to 0.957.

Also, the highest genetic difference was recorded between Massoud 7 and Mekawe (0.957).

The lowest genetic difference was found between the two cultivars Sabha and Bohot 210 (0.025) under experimental conditions.

Cluster analysis classified varieties into major and subgroups according to the genetic distance.

The results of the experiment displayed a genetic diversity among the studied genotypes, and these genotypes could be utilised as fathers in national breeding programs for developing new wheat varieties in Libya.