A detached leaf assay to rapidly screen for resistance of maize to Bipolaris maydis, the causal agent of southern corn leaf blight

Analysis of quantitative trait Loci for resistance to southern leaf blight in juvenile maize.

ABSTRACT A set of 192 maize recombinant inbred lines (RILs), derived from a cross between the inbred lines Mo17 and B73, were evaluated as 3-week-old seedlings in the greenhouse for resistance to southern leaf blight, caused by Cochliobolus heterostrophus race O. Six significant (LOD >3.1) quantitative trait loci (QTL) were identified for disease resistance, located on chromosomes 1, 2, 3, 6, 7...

Reactions of Open-Pollinated Sweet Corn Cultivars to Stewart’s Wilt, Common Rust, Northern Leaf Blight, and Southern Leaf Blight

The first commercially successful F1 hybrid sweet corn, Golden Cross Bantam, was released by Smith in the early 1930s (17). Today, over 600 sweet corn hybrids are available commercially in the United States and thousands of new hybrids are developed and evaluated each year. These hybrids display a wide range of phenotypic reactions to prevalent diseases (9), indicating a considerable amount of ...

Efficacy of Newer Molecules, Bioagents and Botanicals against Maydis Leaf Blight and Banded Leaf and Sheath Blight of Maize

Maize (Zea mays L.; 2N=20) is major staple food crop grown worldwide adapted to several biotic and abiotic stresses. Maydis leaf blight (MLB) and banded leaf and sheath blight (BLSB) are serious foliar fungal diseases may cause up to 40% and 100% grain yield loss, respectively. The present studies were undertaken to work out the efficacy of chemicals, botanicals and bioagents for the management...

Helminthosporium: Secondary Metabolites, Southern Leaf Blight of Corn, and Biology

The recent outbreak of the southern corn blight is caused by race T of fIel1l1intlzosporiulIl lIlaydis, a species in the fungus genus Hel1l1intlzosporiU1I1 which consists of about 175 species, worldwide in distribution, on grasses. Three species of HellllintlzosporiulIl-H. lIlaydis, H. turciculIl, and H. carbonUIIl-attack corn and are placed in the genus Bipolaris. The southern corn blight fung...

OCCURRENCE OF NORTHERN LEAF BLIGHT, Phaeosphaeria LEAF SPOT , SOUTHERN LEAF BLIGHT, RUST AND MAIZE STREAK VIRUS IN KENYA