April
1999
, Volume
83
, Number
4
Pages
385
-
389
Authors
H. E.
Stelzer
,
Champion International Corporation, Jay, FL 32565
;
R. L.
Doudrick
and
T. L.
Kubisiak
,
U.S. Forest Service, Southern Institute of Forest Genetics, Saucier, MS 39574
; and
C. D.
Nelson
,
International Paper Company, Bainbridge, GA 31717
Affiliations
Go to article:
RelatedArticle
Accepted for publication 10 December 1998.
Abstract
ABSTRACT
Single-urediniospore cultures of the fusiform rust fungus were used to inoculate seedlings from 10 full-sib families of a five-parent slash pine diallel at two different times in 1994. The presence or absence of fusiform rust galls was recorded for each inoculated seedling at 9 months postinoculation, and percent infection levels for each family-inoculum-time combination were used for detecting differences among host families and fungal cultures and for identifying differential interactions. The existence of differential interactions between two or more fungal cultures and two or more host families verifies that complementary gene action does exist in this pathosystem. Some host families may be excluded from more detailed interaction studies on the basis of their redundancy and lack of participation in differential interactions.
JnArticleKeywords
Additional keyword:
Pinus elliottii
Page Content
ArticleCopyright
The American Phytopathological Society, 1999