Response of different wheat varieties to Bipolaris sorokiniana at seedling stage under laboratory condition

  • Khagendra Kandel Institute of Agriculture and Animal Science (IAAS), Tribhuvan University (TU), Kirtipur, Kathmandu, Nepal https://orcid.org/0000-0002-3039-5336
  • Dilli Dhakal Institute of Agriculture and Animal Science (IAAS), Tribhuvan University (TU), Kirtipur, Kathmandu, Nepal
  • Harish Giri Institute of Agriculture and Animal Science (IAAS), Tribhuvan University (TU), Kirtipur, Kathmandu, Nepal
  • Sushil Basnet Institute of Agriculture and Animal Science (IAAS), Tribhuvan University (TU), Kirtipur, Kathmandu, Nepal
  • Utsav Koirala Institute of Agriculture and Animal Science (IAAS), Tribhuvan University (TU), Kirtipur, Kathmandu, Nepal
  • Narayan Dhakal Institute of Agriculture and Animal Science (IAAS), Tribhuvan University (TU), Kirtipur, Kathmandu, Nepal
Keywords: Area under disease progress curve, disease severity, Bipolaris sorokiniana, spot blotch disease

Abstract

Spot blotch (Bipolaris sorokiniana) is a major disease of wheat in warm, humid wheat-growing regions. The aim of present study was to evaluate the infection symptomology and disease severity to different wheat varieties under laboratory condition. A total of ten wheat genotypes including RR-21 (a susceptible check) and Aditya (a resistant check), were evaluated for seedling stage resistance to spot blotch disease through artificial inoculation under laboratory condition at Gokuleswor, Baitadi during 2018. Based on disease severity and area under disease progress curve (AUDPC), Aditya was found resistant and RR-21 was found susceptible The tested genotypes were categorized on the basis of total AUDPC value, where Banganga, BL4341, BL4407 and local genotype were moderately resistant, BL-4406, NL-1190, NL-297 and NL-971 were found moderately susceptible to spot blot at seedling stage. The susceptible check, RR-21 had the highest disease severity (44%) as well as mean AUDPC value (51.38).

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Abstract
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Published
2020-01-07
How to Cite
Kandel, K., Dhakal, D., Giri, H., Basnet, S., Koirala, U., & Dhakal, N. (2020). Response of different wheat varieties to Bipolaris sorokiniana at seedling stage under laboratory condition. Journal of Agriculture and Natural Resources, 3(1), 170-179. https://doi.org/10.3126/janr.v3i1.27155
Section
Research Articles