ing damage ranged from odor. to general visual appearance.
Attributes of seedling quality are categorized as either to cutting
buds. to scraping bark to detect dead cambium. performance
attributes (RGP. frost hardiness. stress resistance) One nursery
reported using frost hardiness as an indicator of or material
attributes (bud dormancy. water relations. nutrition. when to begin
fall lifting. but none reported using it as an morphology).
Performance attributes are assessed by placing indicator of
seedling quality before shipping stock to customers. samples of
seedlings into specified controlled environments and evaluating
their responses. Although some effective short 23.4.3 Stress
resistance cut procedures are being developed. performance tests
tend Only three nurseries measure stress resistance. They use to be
time consuming; however, they produce results on whole the services
of Oregon State University and the test methods plant responses
which are often closely correlated with field described in 23.2.3.
One nursery reported that results of stress performance. Material
attributes. on the other hand. reflect tests did not agree well
with results of RGP tests and that RGP only individual aspects of
seedling makeup and are often correlated better with seedling
survival in the field. Most stress poorly correlated with
performance. tests are conducted for reforestation personnel rather
than for Bud dormancy status seems to be correlated. at least
nurseries."
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