Effects of Genotype and Environment on Flax Yield and Fatty Acids
In order to objectively evaluate the yield,stability and adaptability of new flax varieties(lines)as well as the discriminability of each experimental site,the yield and fatty acid content of flax varieties participating in the regional experiment in Gansu Province from 2009 to 2010 were analyzed by AMMI model.The results showed that different years and environment had great influence on yield,followed by genotype.G14 was the best in variety stability,and G10 was the worst.Combined with the yield results,G7,G2 and G1 had good high yield and stable yield,which were suitable for popularization.P6 had the strongest ability to identify varieties and P8 had the worst ability to identify varieties.From the results of quality analysis,genotype and environmental effects had a great influence on oil content and linoleic acid content;the contents of linolenic acid,oleic acid and palmitic acid were greatly affected by year,genotype and environmental factors;stearic acid was greatly affected by genotype.The oil content and palmitic acid content of G2 were the most stable;the linoleic acid content of G8 was the most stable,and the linolenic acid content of G10 was the most stable.From the D,value of the test point,the oil content and oleic acid content of P5 were the most stable;the contents of linolenic acid,stearic acid and oleic acid in P6 were the most unstable.This study provided some reference for the selection of flax varieties and the setting of experimental sites.