|Pastor Corrales, Marcial - Talo|
Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 3/20/2008
Publication Date: 5/20/2008
Citation: Brick, M.A., Ogg, J.B., Singh, S.P., Schwartz, H.F., Johnson, J.J., Pastor Corrales, M.A. 2008. Registration of Drought Tolerant, Rust Resistant, High Yielding Pinto Bean Germplasm Line CO46348. Journal of Plant Registrations. 2:120-124. Interpretive Summary: Drought stress reduces dry bean seed yield in most production regions worldwide. In the western USA, drought occurs in both arid and semiarid regions due to inadequate summer precipitation and inadequate supplies of irrigation water, sometimes causing severe crop loss. In recent years irrigation water supplies have been limited due to reduced winter precipitation needed to refill storage reservoirs, and declining ground water supplies. These events have created a need to identify and develop crop cultivars that utilize less water and withstand drought stress. Another bean production constraint is bean rust, an economically important disease of common bean worldwide. This disease is a threat east of the Rocky Mountains in the United States. At least 80% of bean production occurs east of the continental divide from Colorado and Wyoming to Nebraska, North, Dakota, Minnesota and Michigan. The bean rust disease tends to be recurrent in Tennessee, Florida and Eastern Colorado. The objective for the release of CO46348 was to provide plant breeders with pinto bean germplasm that has tolerance to drought, full-season maturity (95 to 98 days), high yield potential, excellent pinto seed quality, resistance to rust, and adaptation to northern latitudes in the USA. CO46348 was developed by the Colorado Agricultural Experiment Station in cooperation with the University of Idaho and USDA-ARS and released 1 April, 2007. This pinto bean germplasm will be used by bean research scientists who are developing drought and rust resistant cultivars.
Technical Abstract: Drought stress reduces dry bean (Phaseolus vulgaris L.) yield in more than 60 % of the production regions worldwide. The release of CO465348 will provide plant breeders with drought tolerant, pinto bean germplasm that takes advantage of full-growing season (95 to 98 d), has high yield potential, excellent pinto seed quality, and resistance to rust caused by Uromyces appendiculatus. Pinto bean germplasm line CO46348 was developed by the Colorado Agricultural Experiment Station in cooperation with the University of Idaho and USDA-ARS and released 1 April, 2007. The complete pedigree of CO46348 is unknown, however it was derived from a single cross made in 1989 with the pinto cultivar Othello as the female parent. Othello is a short season pinto cultivar released in 1987 that combines excellent pinto seed color and resistance to some strains of bean common mosaic caused by bean common mosaic virus, a potyvirus.