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Correlated Studies of Winterhardiness and Rust Reaction of Parents and Inbred Progenies of Orchard Grass and Timothy 1
Author(s) -
Myers W. M.,
Chilton S. J. P.
Publication year - 1941
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1941.00021962003300030004x
Subject(s) - orchard , forage , geneticist , citation , agricultural experiment station , library science , horticulture , biology , agronomy , geography , agriculture , computer science , genetics , archaeology
N perennial pasture plants the ability to survive during severe I winters is a characteristic of great importance. With orchard grass winterhardiness is a limiting factor in the northern distribution of the species. In the winter of 1939-40, severe winter injury occurred in individually spaced plants of orchard grass and timothy in the grass nursery of the U. S. Regional Pasture Research Laboratory, State College, Pa., and this afforded opportunity to select for this character. Since the severe winter was preceded by a natural epiphytotic of Pucciwia gramiGs in the orchard grass and of Puccinia phlei-prate&s in the timothy during the summer of 1939, it was possible to determine whether rust injury had any effect on winter survival and spring recovery. It is the purpose of this paper to report these results since nothing was found in the literature bearing directly on this subject.