Genetic diversity in maize landraces for resistance to Chilo partellus in Kenya
Abstract
101 words
Yield losses in maize associated with stem borer damage is
estimated at 13% annually in Kenya. New sources of resistance
to stem borers are needed to develop germplasm for the diverse
maize growing ecologies. This study was conducted to establish
new sources of resistance from CIMMYT landrace accessions
to Chilo partellus. Landraces are expected to provide diverse
sources of useful genes that may have been lost during breeding
in elite germplasm. Landraces Guan 34, Guat 79, and Guat
1050 were the most resistant, exhibiting lowest tunnel length
mean of 8.79 cm compared to the resistant hybrid checks mean
of 15.4 cm.
Keywords
- biological phenomena
- breeds (animals)
- chilo partellus
- Exit holes
- Germplasm
- grain
- hybrids
- International Maize and Wheat Improvement Centre (CIMMYT)
- Kenya
- land resources
- maize
- Nairobi
- National Crops Resources Research Institute (NARRO)
- planting
- RUFORUM; Agricultural Higher Education
- tunnel length
- yield
- yields
Subjects
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