Factor and Cluster Analysis on Main Quality Characters of New-collective Germplasm of Grape in Turpan Region
This paper is to evaluate thirty-two new collected grape resources in Turpan region based on main quality traits and grape quality,and to provide a reference basis for the superior varieties screen ing,breeding,and quality improvement.Twenty fruit quality traits of thirty-two grape resources have been analyzed by factor analysis and systematic cluster analysis.Six main factors were extracted based on factor analysis.They were respectively flavor quality,berry mass,appearance quality,edible rate,fruit nutrition,peel and pulp texture.Their cumulative contribution rate was 80.983％.The two-dimensional map formed by each main factor score can intuitively reflect the relationship between the varieties and quality indicators.Sixteen influential quality traits were chosen by the correlation a nalysis of the former fruit characteristics and six main factors.Thirty-two grape resources were divided into four types,two of them can be further divided into two subcategories.In Turpan region,there are fewer the fresh-eating varieties characterized by large,high edible rate,high sugar-acid ratio,thin skin,crisp pulp,good appearance quality,and still lack of seedless varieties for fresh-eating and dried dual-purpose.This study reflects the quality distribution of grape resources collected in recent years,which can be referred for grape utilization,germplasm introduction and breeding target setting in this region.
NETL
NSTL
万方数据
维普
