Evaluation of hybrids for yield and resistance to post flowering stalk rot in maize

Authors

  • NIRUPMA SINGH*, MEENA SHEKHAR, AMBIKA RAJENDRAN and RAM BABU

Keywords:

Maize, Fusarium verticillioides, hybrids, Macrophomina phaseolina

Abstract

Post flowering stalk rot (PFSR) is a soil borne disease limiting the yield of maize especially in Peninsular India. PFSR is caused by a complex of fungi namely Fusarium verticillioides, Macrophomina phaseolina and Harpophora maydis. The most cost effective and sustainable management of the disease can be obtained by developing PFSR resistant maize hybrids with high yield potential. Hence this study was carried out to evaluate twenty-five experimental hybrids for PFSR resistance and yield performance under artificial inoculated conditions. The experiment was laid out in a randomized block design with two replications. Ratings of 1 (resistant) to 9 (susceptible) based on disease incidence was used for screening of hybrids. The incidence and severity of Fusarium stalk rot scale among hybrids varied from 1.5 (131021 x Z172-421) to 3.3 (131021 X A2-19-2) while in charcoal rot, the range was found to be 1.5 (Z172-338 X 131021) to 2.5 (Z172-28 X Z172-166). Experimental hybrids, Z172-340 X A2-10, A8-1 X 131021 and Z172-28 X Z172-166 out yielded the superior check (Bio9681) under severe disease conditions. Resistant hybrids identified may be recommended to PFSR affected areas after undergoing multi location yield trials. Further these hybrids can be utilized in resistance breeding programmes.

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Issue

Vol. 69 No. 4s (2016): Indian Phytopathology : Special Issue

Section

Research Articles

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How to Cite

AMBIKA RAJENDRAN and RAM BABU, N. S. M. S. (2016). Evaluation of hybrids for yield and resistance to post flowering stalk rot in maize. Indian Phytopathology, 69(4s), 734-736. http://epubs.icar.org.in/ejournal/index.php/IPPJ/article/view/71436