Descriptor: 064 Degree of winterhardiness of primary buds (064 DEGREE OF WINTERHARDINESS )



 
Definition:
Determ.accord.percentage of bursted in spring in vineyard on 10 vines, all buds on 1 one year-old shoot(which remained on vines after pruning)from each vine no less them 10 buds,total about 100 buds.Rootscock grape vine var.are not eval.for winterhar
Category:
Biology descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Alpha/numeric descriptor
Maximum Length:
1
Responsible Site:
SYSTEM (SYS)


Studies or environments

Distribution of Values for 064 Degree of winterhardiness of primary buds (064 DEGREE OF WINTERHARDINESS )

CodeDefinitionNumber of Accessions
3low killed 60-79 % buds9
5medium killed 40-59 % buds57
7high killed 20-39 % buds122
9very high killed less than 20 % of buds34