Importance of Secondary Inoculum in Strawbreaker Foot Rot of Winter Wheat

Publisher Website
Google Scholar
Abstract
Inoculations with conidia of Pseudocercosporella herpotrichoides in Nov. (1979) reduced yields of a susceptible wheat (Selection 101) by 56%. Inoculations in Feb. and March (1980) had little effect on yield or bushel weight, but severe lesions developed on many stems. The early infections, representing the effect of primary inoculum, contributed most to yield loss, but the late infections, representing the effect of secondary inoculum, added to the amount of inoculum for succeeding crops. Inoculations of the same wheat 3 times, once each in Nov., Dec., and Feb., did not increase disease appreciably over that resulting from a single heavy inoculation in Nov. A single, heavy fall inoculation is recommended for variety screening trials.

This publication has 0 references indexed in Scilit: