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Research Article Open access CC BY 4.0

Screening for Identification of Resistant Genotypes against Charcoal Rot Caused by Macrophomina phaseolina in Maize (Zea mays L.)

A. Vijaya Bhaskar, Usharani G., Sravani D.

International Journal of Plant & Soil Science · pp. 222–237 · Published 18 Dec 2023

10.9734/ijpss/2023/v35i234235

Abstract

Screening of Maize entries for resistance to charcoal rot disease using 1-9 disease severity measuring scale in sick plot at field conditions. In this study,492entries with check were screened in randomized block design by tooth pick method of inoculation at Agricultural Research Station, Karimnagar, Telangana State, India during rabi and kharif. During rabi 2021-22, out of screened 212 lines,46 lines viz., KML-2, JCY-2-7, KML-4,KML-17,KML- 26,KML-33,KML-74,KML-76,KML-82,KNMH-4211,KNMH-4192,KNMH-131,KMH-396,KMH-393,KMH-770,KMH-286,KMH-275,KMH-318,S-6668,KMH-253,KMH-262,KMH-777,KMH-433,KMH-431,KMH-25,KMH-340,KMH-341,KMH-331,KMH-337,KMH-471,KMH-469,KMH-586,KMH-357,KMH-367,KMH-542,KMH-544,KMH543, KMH -131,KMH-394,KMH-400,KMH-545,KMH-194,DHM-121,BIO-9544,HT5106 and NK6802 were found moderately resistant, Kaveri-50 (Check) entry was recorded 8.10 disease scale and remaining lines were found susceptible to charcoal rot disease. Out of screened 280 lines,one line KMH-152 was found resistant ,77 lines were identified as moderately resistant,one line Kaveri -50 (check) was severely affected by Charcoal rot with 8.0disease rating and rated as susceptible during kharif, 2022.

Screening genotypes hybrids tooth pick method of inoculation disease rating scale charcoal rotdisease Maize

References (4)

  1. 1 INOCULATION METHODS AND DISEASE RATING SCALES FOR MAIZE DISEASES
  2. 2 Maize diseases and approaches to their management in India [DOI]
  3. 3 Diseases of maize in South and South-East Asia: problems and progress [DOI]
  4. 4 Screening of Some Maize Cultivars for Charcoal Rot in Northern Region of Telangana, India [DOI]

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