Muhammad Rahim
Agricultural Research Station(North), Saidu Sharif, District Swat, NWFP, Pakistan
ABSTRACT
Three USDA plant introductions; AMES 3235, PI 497250 and PI 497938, and four released lines, RHA 274, DM-2, RHA 266, and HA 821, were studied for resistance reaction and number of genes conferring resistance to SDM race 2. Digenic inheritance of resistance was found in AMES 3235, PI 497250, and RHA 274, where each of these lines were found to have two different genes for conferring resistance to SDM race 2, while DM 2 and PI 497938 each has one gene to inherit resistance to race 2. RHA 266 and HA 821 have no resistance at all to race 2
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How to cite this article
Muhammad Rahim, 2001. Mode
of Resistance and Number of Genes Conferring Resistance to Sunflower
Downy Mildew Race 2 in Sunflower (Helianthus annuus L.). Journal of Biological Sciences, 1: 821-824.
DOI: 10.3923/jbs.2001.821.824
URL: https://scialert.net/abstract/?doi=jbs.2001.821.824
DOI: 10.3923/jbs.2001.821.824
URL: https://scialert.net/abstract/?doi=jbs.2001.821.824
REFERENCES
- Miller, J.F. and T.J. Gulya, 1987. Inheritance of resistance to race 3 of downy mildew in sunflower. Crop Sci., 27: 210-212.
Direct Link - Miller, J.F. and T.J. Gulya, 1988. Registration of six downy mildew resistant sunflower germplasm lines. Crop Sci., 28: 1040-1041.
Direct Link - Zimmer, D.E. and M.L. Kinman, 1972. Downy mildew resistance in cultivated sunflower and its inheritance. Crop Sci., 12: 749-751.
Direct Link