Premium
Susceptibility of Hard Red Spring Wheats to Common Root Rot
Author(s) -
Stack Robert W.
Publication year - 1994
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1994.0011183x003400010050x
Subject(s) - biology , cochliobolus sativus , cultivar , spring (device) , root rot , agronomy , horticulture , plant disease resistance , genotype , mechanical engineering , engineering , biochemistry , gene
Common root rot caused by Cochliobolus sativus (Ito et Kurib) Drechs. ex Dastur causes substantial loss in spring wheat ( Triticum aestivum L.) in the northern USA and Canada. This study was done to test hard red spring wheat cultivars and lines for susceptibility to common root rot. Spring wheat genotypes were planted in Fargo, ND, in eight field experiments from 1977 to 1990 on a Fargo silty clay (Vertic Haplaquoll). Genotypes exhibited a continuous range of response from susceptible to moderately resistant but none were entirely free from disease. Eight genotypes equalled or exceeded the level of resistance of ‘Thatcher’, long considered the standard for a high level of resistance to this disease.