Study On Description And Data Standard For Chinese Wild Grape Preliminarily

Chinese wild grapes are widely distributed and abundant resources, the diversityof traits, the range of variation, can not fully meet “description standard and datastandard for grape (Vitis L.)” in the description and evaluation of the wild graperesources research the actual need in urgent need of revision in order to adapt to theactual situation of the wild species of grapes. According to the “description standardand data standard for grape (Vitis L.)”, taking a number of character index as aidentification parameters, the genetic diversity of23Chinese wild grapes and oneAmerican kind of Vitis riparia and one hybrid offspring ‘Huajia No.8’ were analysisedby identifying botany characteristics and agronomic traits. Summary analysis existingstandard in the does not adaptation wild grape characteristics of description, and ratings,and Evaluation criteria and methods, further identification of adaptation data descriptionof wild grapes. Results are as follows:1. The phenophase of Chinese wild grapes there are abundant variations. Theearliest budding is Vitis amurensis, the latest is Vitis adenoclada.The earliest floweringis Vitis amurensis, the latest is Vitis heyneana. The earliest of berry ripe is Vitishancockii, the latest is Vitis heyneana. The shortest of Berry growth period is Vitishancockii, the longest is Vitis betulifolia. In different clone phenophase difference, themale plants flowering earlier, female plants flowering later. Vitis heyneana and Vitisadenoclada from sprouting to berry maturation of phenological periods during thealmost unanimous, speculated that Vitis heyneana and Vitis adenoclada close geneticrelationship, as a separate kind of reasonable enough.2. Survey of wild grapes mature leaf-shaped, the number of mature leaf lobes, thebase of the mature leaf petiole hollow shape, petiole hollow open-stacked traits, type offruit flavor, flower type, skin color, flesh firmness with current standards can not describe.To be based on their diversity characteristics, appropriate adjustments units or code. 3. Some properties such as the glandular hairs of shoots, color of shoots glandularhairs, density of shoots glandular hairs, leaf margin tricholoma, white powder of lowerside is rich in diversity, consider supplement the characters descriptors.4. Research results demonstrate that some describe the traits of Chinese wildgrapes there is no classification of the genus value, shoots tendrils distribution, brancheslenticels consistency fruit, fruit cross-section shape, seed development status, seedappearance transverse groove and hilum these fixed traits of wild grape varietiesclassified no value, you do not need to be described evaluation.5. Chinese wild grape bunchs are small, berry weight is lighter. Vitis davidii ofberry shape is round and oval-shaped, berry skin color with green-yellow, red-violetand blue black, High production of Vitis davidii and Vitis heyneana, Vitispseudoreticulata and Vitis bryoniifolia are green pepper flavor, soluble solids contentup to about20%. Bunch length, bunch width, bunch size, bunch weight, berry length,berry width, berry size, berry weight, soluble solid content, bunch density littledifference according to the original evaluation criteria, does not adequately reflect thedifference the wild grape between the need for evaluation criteria can be adjusted to fitthe wild grapes standard.