2016
DOI: 10.31018/jans.v8i3.994
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Pathogenic variability in Exserohilum turcicum and identification of resistant sources to turcicum leaf blight of maize (Zea mays L.)

Abstract: Turcicum leaf blight of maize incited by Exserohilum turcicum (Pass.) Leonard and Suggs is the major limiting factor of maize production in temperate agro-ecologies. Disease management through host plant resistance is the most effective strategy. In the present study among 26 maize genotypes which were initially screened for resistance against E. turcicum under field conditions, 8 genotypes viz., PS 39, CML 451, CML 470, CML 472, VL 1030, VL 1018140, VL1018527 and SMI178-1 were found resistant when screened ag… Show more

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Cited by 8 publications
(9 citation statements)
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“…Therefore, the observed disease symptoms were considered to be incited by the inoculated E. turcicum isolate. Other field plant-to-plant inoculation methods for this pathosystem include atomizing spore suspensions ( Ahangar et al, 2016 ), dropping into the whorl a spore suspension (150 ml) ( Weems and Bradley, 2018 ) or ground symptomatic leaves collected the preceding season ( Debela et al, 2017 ). Other researchers combined spore suspension and inoculated sorghum grains either simulatenously ( Poland et al, 2011 ), or at five days interval ( Bhat et al, 2017 ).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Therefore, the observed disease symptoms were considered to be incited by the inoculated E. turcicum isolate. Other field plant-to-plant inoculation methods for this pathosystem include atomizing spore suspensions ( Ahangar et al, 2016 ), dropping into the whorl a spore suspension (150 ml) ( Weems and Bradley, 2018 ) or ground symptomatic leaves collected the preceding season ( Debela et al, 2017 ). Other researchers combined spore suspension and inoculated sorghum grains either simulatenously ( Poland et al, 2011 ), or at five days interval ( Bhat et al, 2017 ).…”
Section: Discussionmentioning
confidence: 99%
“…Leonard & Suggs, which commonly infects maize cultivated in humid mid- and high-altitude regions of the world, including SSA ( Sibiya et al, 2013 ; Hooda et al, 2016 ). This fungus, which causes the disease known as northern corn leaf blight (NCLB), commonly thrives in mid-altitude tropical regions with 70–95% humidity and temperatures ranging from 17 to 28 °C ( Carson, 2007 ; Ahangar et al, 2016 ). In West and Central Africa (WCA), the disease was typically restricted to mid- and high-altitudes of Nigeria and Cameroon but has recently spread to lowland areas which were traditionally free of NCLB ( Badu-Apraku and Fakorede, 2017 ; Akinwale and Oyelakin, 2018 ).…”
Section: Introductionmentioning
confidence: 99%
“…Early maturing land races with a degree of cold tolerance and very low yield potentials are mainly cultivated in these ecologies. Moreover, the maize crop in these regions is subjected to enhanced incidence of biotic stresses especially Turcicum leaf blight caused by Exserohilum turcicum and common rust caused by Puccinia sorghi [5]. Along with the reduction in grain yield, the biotic stresses cause immense damage to crop straw, the only source of fodder in Kashmir Valley during the winter season [6].…”
Section: Exploitationmentioning
confidence: 99%
“…Disease development during the early growth stages results in the premature death of leaves. Hence the loss of photosynthetic area affects grain yield as well as fodder quality; this is of particular significance under temperate climatic conditions since fodder is fed to cattle during the lean season [8,9]. Different races of S. turcica have been identified throughout the world such as the races 0, 1, 2, 3, 12, 13 23, N, 1N, 2N, 3N, 13N, 23N and 123N based on their virulence against various resistant genes (Ht1, Ht2, Ht3, HtM, Htn1, ht4, HtP, HtNB) in maize [10,11].…”
Section: Introductionmentioning
confidence: 99%
“…This disease occurs sporadically in most temperate, humid maize-grown areas and is of particular concern in the tropical highlands, where conditions favour disease development [27]. The disease was also found to be the major restraint of maize production under the temperate climatic conditions of Ahangar et al [28].…”
Section: Introductionmentioning
confidence: 99%