English

D Mir S,M Razvi S,Ahmad Mushtaq,Gul Zaffar Gul Zaffar,A Parray G

doi:10.5897/ajmr2014.7233

Abstract

A study on reaction of ten inbred lines of maize to northern leaf blight mainly caused by Exserohilum turcicum (Pass) Leonard and Suggs, was conducted under artificial epiphytotics conditions in green house. Among 10 inbred lines evaluated, three were found moderately resistant viz, NAI-113, NAI-152 and NAI-137, five lines moderately susceptible viz, NAI-123, NAI-142, NAI-143, NAI-147 and NAI-116, and the rest two, W3 and W5 inbreds were severely affected by TLB and rated as susceptible. The lines identified to possess low disease severity score against Turcicum leaf blight in the present study could be used successfully in developing genotypes having desirable level of resistance in disease endemic areas to aim for sustainable productivity. Key words: Maize (Zea mays L.), northern leaf blight, inbred lines, screening.

Highlights

Maize (Zea mays L.) is an important staple food crop and provides raw materials for the livestock and many agroallied industries in the world (Bello et al, 2010; Randjelovic et al, 2011)
Plants showing typical symptoms of Turcicum leaf blight (TLB) were used for re-isolation of the pathogen and after re-isolation, the fungus were compared with the earlier ones and those matching were selected for further germplasm screening
NAI-113, NAI-152, NAI-137, NAI-123, NAI-142, NAI-143, NAI-147 and NAI-116 were selected from the germplasm collection obtained from Zonal Agricultural Research Station V

Summary

Introduction

Maize (Zea mays L.) is an important staple food crop and provides raw materials for the livestock and many agroallied industries in the world (Bello et al, 2010; Randjelovic et al, 2011). Several pathogens are known to cause diseases in maize plants. TLB of maize caused by Exserohilum turcicum is an important foliar disease. The disease (TLB) is endemic in all maize growing areas and

Results

Conclusion