Registration of CA0469C025C Chickpea Germplasm

Abstract

Chickpea (Cicer arientinum L.) germplasm CA0469C025C (Reg. No. GP-295, PI 672149) was released by the USDA–ARS in 2010 based on its improved seed yield and reaction to Ascochyta blight (caused by Ascochyta rabiei) relative to the commercial cultivars Dwelley, Sierra, and Sawyer. CA04690C025C is an F7–derived line from the cross ‘Obraztsov Chiflik 1’/‘Sanford’. CA0469C025C was tested in advanced yield trials for 16 location-years in the U.S. Pacific Northwest (Idaho and Washington) and four location-years in Montana. In Washington and Idaho, CA0469C025C averaged 1636 kg ha−1, which was 17, 17, and 7% greater than Dwelley, Sierra, and Sawyer, respectively. In trials conducted in Montana, CA0469C025C averaged 1403 kg ha−1, which was 39, 28, and 13% greater than Dwelley, Sierra, and Sawyer, respectively. The plant height index of CA0469C025C is similar to that of the three check cultivars, indicating good lodging tolerance. CA0469C025C and check cultivars were screened in field nurseries for reaction to Ascochyta blight using a scale of 1(highly resistant) to 9 (highly susceptible). The mean reaction of CA0469C025C over 4 yr was 3.6 compared with 5.7, 4.7, and 4.3, respectively, for Dwelley, Sierra, and Sawyer, indicating CA0469C025C has better resistance to Ascochyta blight. CA0469C025C produces seed that is too small for canning or fresh markets, but it will be useful as a parent for breeding efforts to increase yield and disease resistance in chickpea.