Evaluation Of Economical Characteristics Of Black Currant Fruit

This thesis uses 26 black currant varieties as test material in Northeast Agricultural University Horticultural Experimental Station,Black currant varieties resource fruit characteristics investiga-tion began in early April.Detailed investigation cited from Russia,Poland,as well as China's own breeding varieties resources phenophase and fruit characteristics.System Comparison and analysis of the resources of all varieties.It's establishment of a variety of quality resources characteristics file.Provide services for the production.To provide a scientific basis for the breeding of new varieties of black currant.Protection of black currant industry healthy and sustainable development.Through the investigation the following conclusions:(1)Phenological phases between the different varieties of black currant obvious differe-nces.Even quoted from the different varieties of the same country there are also obvious difference,View from the varieties from different countries,Russian varieties than in the Polish and Chinese varieties germinate as early as 2 to 4 days.The Russian varieties than in the Polish and Chinese varieties mature as early as 6 to 16 days.(2)From fruit size and yield,Russian varieties of fruit size and yield of individual plants is higher than in Poland and China varietiesm,and the fruit is very neat.(3)The high percentage of soluble sugar in the fruit varieties,Russia's Jin da li,Suo fei ya,Bai e luo si tian and Bin hai ming zhu.Polish's Brodtrop,and China's Han feng.Organic acids with a high percentage of fruit varieties,Russia's Ge lu bu ji,Ge jin,Jin da li,Wu su li,Bin hai ming zhu,Wei da and Baji la.Polish's Oiebyn Lu de ke,FeTtodi,Bai er wen,Men di ke and china's Han feng.(4)The high content of flavonoids in fruit varieties is Russia's Ge lu buji,Ge jin,Ji nian li sa wen ke,Ji ke wen ka,Ya de,Zi ge shi sheng and Wei da.Polish's Oiebyn,Brodtrop,Fettodi,Li sang jia and Benlomont.Soluble solids content of more than 15%of the fruit varieties is Russia's Bai e luo si tian,Bin hai ming zhu,Ji ke wen ka.Polish's Bai er wen and Oiebyn,China's Wan feng and Liang ye hou pi.(5)In accordance with the method of equidistant grouping,the number distribution of economic traits of black currant berry fruit was counted,and a grading system of 1 to 5 grades was used to propose the number of fruits per panicle,soluble sugar content,organic acid content,anthocyanin content,soluble solids,The grading standard of 10 characters such as ear length,ear yield,hundred fruit weight,flavonoid content and polyphenol content.Using principal component analysis methods to determine that the main indicators impacting the economic evaluation traits of black currant fruit are ear yield,the number of fruits per panicle,anthocyanin content,flavone content,polyphenol content,soluble solids content,soluble sugar content and organic acid content,the main factor of fruit is sugar content of fruit.Application of factor analysis method,defining the condition.The first common factors are ear yield and berry weight,the second common factors are the fruit soluble sugar and anthocyanin.From the perspective of economic traits of fruit,people make comprehensive evaluation to black currant varieties.And they think the kind of???????Sofia,Kim Dae-grain,Grew Bucky,Ussuri and other varieties fruit have better comprehensive economic traits.