| Autor: |
Waykule, Priti, Kadam, D. R., Sonkamble, M. M. |
| Předmět: |
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| Zdroj: |
Biochemical & Cellular Archives; Apr2024, Vol. 24 Issue 1, p947-951, 5p |
| Abstrakt: |
Maize stem borer (MSB), Chilo partellus Swinhoe (Lepidoptera: Pyralidae) is one of the most important insect pests of maize in several countries in Asia and Africa. Host plant resistance is the cost-effective, ecologically sound and stable approach to reduce damage by stem borers. Nine maize genotypes were screened for resistance to maize stem borer at the Wheat and Maize Research Unit, Parbhani during Kharif seasons (June to October) of two consecutive years, 2021 and 2022. The maize genotypes were evaluated in a randomized block design with three replications and data were collected on leaf injury rating at 40 and 60 days after sowing (DAS) and stem tunneling length made by the stem borer. The leaf injury rating and tunnel length damage were significant for genotypes/hybrids for both the years. The leaf injury rating at 40 DAS and 60 DAS ranged from 0.96 to 8.63 in 2021, 1.03 to 9.00 in 2022 and 1.00 to 8.81 in pooled on a 1-9 rating scale. The highly resistant genotypes (<2.0 score) were Bio 9682. The tunnel length ranged from 0.00 to 13.77 cm in 2021 and 0.00 to 15.11 cm in 2022. The least susceptible genotypes/hybrids (<5 cm) were Bio 9544, Bio 9682 and Rajashri. Thus, less damage parameters were observed in Bio 9544, Bio 9682 and Rajashri and therefore they can be used as parents or as sources of resistance in breeding programs. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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