Lodging resistance and its associated traits in barley landraces (Hordeum vulgare L.) from arid areas in Algeria

Rahal-bouziane, Hafida; Abdelguerfi, A.

Journal Algérien des Régions Arides
Volume 13, Numéro 1, Pages 107-112
2016-06-01

Lodging Resistance And Its Associated Traits In Barley Landraces (hordeum Vulgare L.) From Arid Areas In Algeria

Authors : Rahal-bouziane Hafida . Abdelguerfi A. .

Abstract

Lodging is a serious problem in cereals damaging both yields, grain and forage quality but also increasing the difficulty of the harvest. This study was conducted in order to analyze the genetic variability and to evaluate the traits that are associated with lodging resistance. The analysis of variance revealed very highly significant differences for all the studied traits which showed a great variability between genotypes. Morphological investigations generally showed that the most resistant genotypes to lodging were those with the shorter total lengths of the first four basis internodes. Those which were susceptible to lodging possess against the longer four basis internodes. The correlations studies on the stem traits as well as the agro-pheno-morphological characters indicated that the lengths of the first four basis internodes were all positively correlated with each other. Diameters and weights of the four internodes were almost all positively correlated with each other. It was also showed that lodging was negatively correlated with the awn length and the 1000 grain weight but positively correlated with the tiller spike number per plant. Correlations between lodging and the lengths of the four basic internodes were all positive and very highly significant. The existing diversity for these traits and the relationships between them could help for directing breeding works for the lodging resistance.