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Selection in Smooth Bromegrass for Resistance to Pyrenophora bromi (Died.) Drechs 1
Author(s) -
Emery Donald A.,
Dunn Gerald M.
Publication year - 1956
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/agronj1956.00021962004800090004x
Subject(s) - biology , inoculation , agronomy , selection (genetic algorithm) , resistance (ecology) , plant disease resistance , yield (engineering) , grain yield , greenhouse , horticulture , gene , genetics , artificial intelligence , computer science , materials science , metallurgy
Synopsis Bromegrass strains and varieties differed significantly in reaction to Pyrenophora bromi in the field, but a particular strain or plant tended to react similarly in different years. Agar and grain cultures were used in the greenhouse where significant correlations were found between clone and their open‐pollinated progenies for reaction to P. bromi . Selection for resistance was not effective in nurseries exposed only to natural infection. Field inoculation with infected leaves was easy and effective. A procedure is suggested for screening plants for disease resistance before progeny yield tests are initiated.