Yield,Yield‐related Traits and Response of Potato Clones to Late Blight Disease,in North‐Western Highlands of Ethiopia |
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| Authors: | Betaw G Hirut Hussein A Shimelis Rob Melis Mengistu Fentahun Walter De Jong |
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| Institution: | 1. African Centre for Crop Improvement, University of KwaZulu‐Natal, Pietermaritzburg, South Africa;2. International Potato Centre – Ethiopia, Addis Ababa, Ethiopia;3. Ethiopian Institute of Agricultural Research (EIAR), Addis Ababa, Ethiopia;4. School of Integrative Plant Science, Cornell University, Ithaca, NY, USA |
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| Abstract: | Late blight disease of potato caused by Phytophthora infestans poses a significant threat to potato production in Ethiopia. The development of new high yielding genotypes with adequate late blight disease resistance will provide a strong component of an integrated management strategy for farmers. The objective of this study was to determine late blight resistance and yield of potato clones under field condition in north‐western Ethiopia. Twenty‐four clones (17 from the International Potato Centre B3C2 population and seven widely grown cultivars) were evaluated at three locations. The experiment was laid in a randomized complete block design with two replications. Late blight resistance and yield‐related traits were determined. Results showed that clones differ significantly for all traits across locations. The following five clones combine high to moderate resistance to late blight with high yields: 396029.250, 395017.229, 396004.263, 396034.103 and 395077.12. These clones are useful genetic resources for resistance breeding against late blight disease and for enhanced yields. |
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| Keywords: | area under disease progress curve highland tropics resistance breeding tetraploid potatoes yield loss |
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