To assess the performance and the variability of 49 flax varieties based on agronomic parameters using cluster analysis, a field experiment was conducted in 2011/2012 and 2012/2013 winter seasons at the farm of the Na...To assess the performance and the variability of 49 flax varieties based on agronomic parameters using cluster analysis, a field experiment was conducted in 2011/2012 and 2012/2013 winter seasons at the farm of the National Research Center at Nubria district, Albehira Governorate, Egypt. The results revealed high significant difference among all flax varieties in all the studied characters. Letwania-9 and Evelen cultivars surpassed all other varieties in seed and oil yields/fed. On the other hand, D variety gave the lowest value of seed yield/fed and F variety gave the lowest values of oil% and oil yield/fed. While, G Variety surpassed all other varieties in straw yield/fed. Blanka variety recorded the lowest values of straw yield/fed and biological yield/fed, while, Posna variety gave the lowest values of technical stem length (cm). In cluster analysis, all the studied characters were used to construct a distance matrix using the Euclidian coefficient, and generate dendrogram showing dissimilarity among all the varieties. Distance coefficient was ranged from 1.2 between Piltstar and Litwania-1 varieties and 10.8 between Posna and G varieties, which reveal the genetic diversity among varieties. The varieties can be divided into 4 groups based on cluster analysis.展开更多
Objective:The aim of this study was to evaluate the anlilungal activity of the major fraction of fatty acids methyl esters(FAMEs)isolated from Linum usitatissimum L.seeds oil collected from Bechar department(Algeria)....Objective:The aim of this study was to evaluate the anlilungal activity of the major fraction of fatty acids methyl esters(FAMEs)isolated from Linum usitatissimum L.seeds oil collected from Bechar department(Algeria).Methods:The assessment ol antifungal activity was carried out in terms of percentage of radial growth on solid medium potatoes dextrose agar PDA)and biomass growth inhibition on liquid medium(potatoes dextrose broth PDB)against two fungi.Results:The FAMEs was found to be effective in inhibiting the radial mycelial growth of Aspergillus fluctis more than Aspergillus ochraceus on all tested concentrations.The highest antifungal index was found to be(54.19%]compared to Aspergillus ochraeeus(40.48%).The results of the antifungal activity of the FAMEs inhibition of bioniass on liquid medium gave no discounted results,but this does not exclude the antifungal activity.Conclusions:We can assume that the observed antifungal potency may be due to the abundance of linoleic andα-linolenic acids in linseed oil which appears to be promising to treat fungal infections,storage fungi and food spoilage in food industry field.展开更多
文摘To assess the performance and the variability of 49 flax varieties based on agronomic parameters using cluster analysis, a field experiment was conducted in 2011/2012 and 2012/2013 winter seasons at the farm of the National Research Center at Nubria district, Albehira Governorate, Egypt. The results revealed high significant difference among all flax varieties in all the studied characters. Letwania-9 and Evelen cultivars surpassed all other varieties in seed and oil yields/fed. On the other hand, D variety gave the lowest value of seed yield/fed and F variety gave the lowest values of oil% and oil yield/fed. While, G Variety surpassed all other varieties in straw yield/fed. Blanka variety recorded the lowest values of straw yield/fed and biological yield/fed, while, Posna variety gave the lowest values of technical stem length (cm). In cluster analysis, all the studied characters were used to construct a distance matrix using the Euclidian coefficient, and generate dendrogram showing dissimilarity among all the varieties. Distance coefficient was ranged from 1.2 between Piltstar and Litwania-1 varieties and 10.8 between Posna and G varieties, which reveal the genetic diversity among varieties. The varieties can be divided into 4 groups based on cluster analysis.
基金Supported from the Algerian Ministry of the higher education and scientific research,PRU project approved in 2011/2013 under the code F03820100015
文摘Objective:The aim of this study was to evaluate the anlilungal activity of the major fraction of fatty acids methyl esters(FAMEs)isolated from Linum usitatissimum L.seeds oil collected from Bechar department(Algeria).Methods:The assessment ol antifungal activity was carried out in terms of percentage of radial growth on solid medium potatoes dextrose agar PDA)and biomass growth inhibition on liquid medium(potatoes dextrose broth PDB)against two fungi.Results:The FAMEs was found to be effective in inhibiting the radial mycelial growth of Aspergillus fluctis more than Aspergillus ochraceus on all tested concentrations.The highest antifungal index was found to be(54.19%]compared to Aspergillus ochraeeus(40.48%).The results of the antifungal activity of the FAMEs inhibition of bioniass on liquid medium gave no discounted results,but this does not exclude the antifungal activity.Conclusions:We can assume that the observed antifungal potency may be due to the abundance of linoleic andα-linolenic acids in linseed oil which appears to be promising to treat fungal infections,storage fungi and food spoilage in food industry field.
