Evaluation of the economic traits of nuts of 33 Corylus heterophylla×Corylus avellane Varieties(Lines)
[Objective]To understand the economic traits of different varieties(lines)of hazelnut,hoping to provide a reference basis for the evaluation of hazelnut resources and the excavation of germplasm resources,and also a scientific basis for the selection and breeding of excellent hazelnut varieties.[Methods]Thirty-three different varieties(lines)of hazelnuts were studied in fruit,and their fruit economic traits were analyzed by principal component analysis,correlation analysis,cluster analysis and ranking to select varieties(lines)with good overall performance and potential for selection.[Results]The nut mass of the test hazelnuts ranged from 1.36 to 3.26 g,the mean values of the three nut diameters ranged from 13.81 to 20.49 mm,the nut mass ranged from 0.30 to 1.26 g,the shell thickness ranged from 1.16 to 2.31 mm,the cavity coefficient ranged from 0.53 to 0.96,and the kernel yield ranged from 14.54%to 51.66%.The kernel yield ranged from 14.54%to 51.66%.Significant differences were found between nut,kernel and kernel yield traits,with coefficients of variation ranging from 6.15%to 55.30%.13 traits were highly correlated with each other,of which 16 pairs were highly significantly positively correlated,12 pairs were highly significantly negatively cor-related and 7 pairs were significantly negatively correlated.The hazelnuts were classified into five groups.[Conclusion]The cavity coefficient,shell-kernel gap,kernel neatness,kernel yield and the mean value of the three kernel diameters are the main indicators affecting the economic traits of Pin-European hazelnut hy-brids,which can be used as reference standards for the evaluation of the economic traits of different varieties(lines)of Pin-European hazelnut hybrids and the selection of good varieties.The varieties(lines)85-57,B-3,84-310,85-41,85-83,82-15,B-11 and 85-127 were screened for their superior overall nut economic traits.
万方数据
维普
