Fruit Nourishment Component Analysis Of Wild Jujube Germplasm Resources And Germplasm Evaluation

Wild jujube is one kind of significant uncultivated fruit tree and medical plant resource whick is widely distributed to many north provinces of China, and it has very high nourishment, diet therapy value, and special properties of pure nature, unpollution, and having abundant nutrition and so on, moreover wild jujube is also a kind of good stock, resistant breeding material and a van specie for the water and soil conservation. But, being lack of systematic research all the way, the wild jujube's development and use are not yet sufficient. This research has carried on system analysis to fruit biology characters and nourishment components about 150 wild jujube resources and obtained every character and component distribution regular pattern and variation situation, moreover selected out the resources that possess significant application value. The results are as follows:1 The distribution range of main quantitative characters of wild jujube germplasm resources, coefficient of variation, distribution rule are obtained, moreover probability grading of main quantitative characters are carried and divided into 5 grades. The frist 3 characters based coefficient of variation are rate of two kernel (56.18%), single fruit weight (55.82%) and titratable acid (55.49%); the last 3 characters are thickness of kernel (6.94%), edible rate (10.04%) and width of kernel (10.89%).2 Main quantitative characters correlations of wild jujube germplasm resources are obtained.3 Several significant characters description criterions of wild jujube fruit have been carried on norm. Namely fruit color is chiefly divided into yellow, red, dark red color and purplish red color four kinds of forms; the color of kernel is chiefly divided into orange yellow, orange red color and purplish red color three' kinds of forms; the fruit shape is chiefly divided into closely circular, oval, egg circular, the egg toppling circular, the cylinder form and circular and shuttle form seven kinds of forms; the flavor of fruit is chiefly divided into exceedingly acid, acid, sweet and acid, honey acid and honey five kinds of flavour.4 Selecting out 10 kinds of wild jujube resources for fresh eating and juice making through grey relating analysis. That are (weighted): Xing tai 27, Xing tai 11, Xing tai 33, Xing tai 16, resources garden 24, Xing tai 28, Zan huang 5, Xing tai 6, Xing tai 2 and Xing tai 17, (Equal weighted): Xing tai 27, Xing tai 16, Xing tai 28, Xing tai 2, Xing tai 34, Resourcesgarden 24, Xing tai 11, Xing tai 33 , Xing tai17 and Xing tai 29.5 Selecting out 5 high mine element resources through grey relating analysis. That are (weighted): Xing tai 26, Xing tai 6, Xing tai 2, Xing tai 34 and Xing tai 17.6 Selecting out 10 resources which kernel biology characters are good through grey relating analysis. They are (weighted): C-17,C-10, E-8, Xing tai 30, C-23, Xing tai 27,A-4, Xing tai 10, Xing tai 6,Little Date Garden 3.7 Selecting out 19 high single fruit weight resources, 14 high edible rate resources, 11 high soluble sugar resources, 19 high titratable acid resources, 13 high vitamin C resources, 10 high Polysaccharides resources, 16 high rate of two kernel, 17 high kernel rate from pit resources, and 16 high one thousand kernels weight resources through application probability hierarchical method.