摘要
Faba bean(Vicia faba L.) has an important place in the Ethiopian national diet. It is consumed in various forms and contributes to the improvement of soil fertility. However,its production and productivity are affected by biotic and abiotic constraints. Among the biotic constraints, the emerging faba bean gall disease, caused by Olpidium uiciae, is the major and most destructive disease wherever faba bean is grown. Field experiments were conducted at two locations(Farta and Tach Gayint districts) to evaluate the reaction of faba bean varieties to faba bean gall disease and to assess them for yield and yield components during the 2014 and 2015 main cropping seasons. Thirteen faba bean varieties and one local check were plantecd in three replications Lusing a randomized complete block design. The disease incidence and severity of faba bean gall were recorded(on a 1-9 scale) five tinmes at10-day intervals. A combined analysis of variance showed za significant difference(P < 0.05)among faba bean varieties with respect to the incidence and severity of gall disease at both locations. Disease incidence, severity, and AUDPC were lowest for variety Turmsa at both locatiOons, but this variety showed lhigh yield only at tlhe Farta location. 'The lhighest yields were obtained from varieties Degaga(1157.74 kg ha ') and Nc58(828.97 kg ha ') at Farta and Tach Gayint, respectively and these varieties slhowed low faba bean gall severity and AUDPC. Thus, higher-yielding faba bean varieties such as Degaga and Nc58 are recommended for faba bean production areas in northwestern Ethiopia.
Faba bean(Vicia faba L.) has an important place in the Ethiopian national diet. It is consumed in various forms and contributes to the improvement of soil fertility. However,its production and productivity are affected by biotic and abiotic constraints. Among the biotic constraints, the emerging faba bean gall disease, caused by Olpidium uiciae, is the major and most destructive disease wherever faba bean is grown. Field experiments were conducted at two locations(Farta and Tach Gayint districts) to evaluate the reaction of faba bean varieties to faba bean gall disease and to assess them for yield and yield components during the 2014 and 2015 main cropping seasons. Thirteen faba bean varieties and one local check were plantecd in three replications Lusing a randomized complete block design. The disease incidence and severity of faba bean gall were recorded(on a 1-9 scale) five tinmes at10-day intervals. A combined analysis of variance showed za significant difference(P < 0.05)among faba bean varieties with respect to the incidence and severity of gall disease at both locations. Disease incidence, severity, and AUDPC were lowest for variety Turmsa at both locatiOons, but this variety showed lhigh yield only at tlhe Farta location. 'The lhighest yields were obtained from varieties Degaga(1157.74 kg ha ') and Nc58(828.97 kg ha ') at Farta and Tach Gayint, respectively and these varieties slhowed low faba bean gall severity and AUDPC. Thus, higher-yielding faba bean varieties such as Degaga and Nc58 are recommended for faba bean production areas in northwestern Ethiopia.
基金
Holeta Agricultural Research Center
Adet Agricultural Research Center for generously providing seeds of improved faba bean varieties and Debre Tabor University for financial support of the research project
