Evaluation of Some Wiled and Cultivated Barley types for Loading Tolerance

Abstract

This search was carried out at Abi Jarash Farm, Faculty of Agriculture, Damascus University, during 2021- 2022 growing season. Barley genotypes were planted after collecting from ecologically dissimilar syrian provinces, (two wild barley types and cultivated or proved type from each province). In aim to evaluate their response to nitrogen fertilization depending on some characters related to lodging resistance improving. The search was designed by using Randomized Complete Block Design with split-plot of three replications for fertilizers and one control replication.

 Field study results showed significant differences in the performance of cultivated genotypes. Swidaa specie was recorded the highest values in the plant height, average of thickness and diameter of the stem by section with fertilizing treatment, and average of second internode length with control treatment (70.05 cm, 1.17 µm, 2.4 µm, 20.3 cm respectively).

And it recorded the lowest value of the number of parenchymal cells by section with control treatment (12 P.c). Hordeum spontaneum (Damascus) and Hordeum marinum (Damascus) recorded the lowest value of the second internode length with fertilizing treatment (6.6 cm, 7.17cm respectively). while Hordeum spontaneum (Yabroud) recorded the lowest value of the plant height, and average of thickness of stem with control treatment (33.23cm, 0.73 µm respectively).