Registration of PR1146‐138 Yellow Bean Germplasm Line

Abstract

The yellow bean (Phaseolus vulgaris L.) is an important market class in Haiti. There have been, however, no previous attempts to genetically improve this seed type for the Caribbean. Landrace varieties of yellow beans in Haiti are susceptible to Bean golden yellow mosaic virus (BGYMV) and Bean common mosaic virus (BCMV), which are important dry bean diseases in the region. In addition, leafhopper (Empoasca kraemeri Ross and Moore) can cause significant yield loss, especially when common beans are planted during periods of low precipitation. The development of dry bean cultivars with enhanced levels of resistance to diseases and pests is an important goal of the University of Puerto Rico (UPR) and the National Seed Service in Haiti. PR1146‐138 (Reg. No. GP‐298, PI 675225) is a multiple virus‐ and pest‐resistant bean germplasm line adapted to the humid tropics that was developed and released cooperatively in 2015 by the UPR Agricultural Experiment Station, the USDA‐ARS, and the National Seed Service of the Ministry of Agriculture, Natural Resources and Rural Development of the Republic of Haiti. PR1146‐138 has a yellow seed type with a hue angle of 86.30 and a chroma of 34.68. PR1146‐138 possesses the I locus that confers resistance to BCMV and the bgm‐1 gene for resistance to BGYMV. PR1146‐138 produced a mean seed yield of 2095 kg ha−1 when tested in Puerto Rico and Haiti in seven environments over a 3‐yr period. It has a determinate growth habit and reached harvest maturity from 65 to 70 d after planting. This line should serve as a useful source of resistance to BGYMV, BCMV, and leafhoppers in the improvement of Andean beans for the tropical lowlands.