ARS | Publication request: Registration of TARS-HT1 and TARS-HT2 heat tolerant dry bean germplasm lines

Submitted to: HortScience
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: April 2, 2010
Publication Date: August 1, 2010
Citation: Porch Clay, T.G., Smith, J.R., Beaver, J.S., Griffiths, P.D., Canaday, C. 2010. Registration of TARS-HT1 and TARS-HT2 heat tolerant dry bean germplasm lines. HortScience. 45:1278-1280.

Interpretive Summary: Two kidney beans (Phaseolus vulgaris L.), TARS-HT1 and TARS-HT2, were developed that are tolerant to high temperature conditions. These kidney beans were developed cooperatively by the USDA-ARS Tropical Agriculture Research Station (TARS), the University of Puerto Rico, Cornell University, and the University of Tennessee. TARS-HT1 is tolerant to high day and night-time temperature stress and TARS-HT2 is tolerant to high daytime temperature stress and moderate nighttime temperature stress. The use of TARS-HT1 and TARS-HT2 can improve yield under hot summer conditions for farmers in regions prone to high temperature stress. In addition, they can be used for improving heat tolerance in other large-seeded beans through breeding and selection.

Technical Abstract: TARS-HT1 (Reg no. __, PI ___) and TARS-HT2 (Reg no. __, PI ___) are heat tolerant dark red and light red, respectively, kidney beans (Phaseolus vulgaris L.) developed cooperatively by the USDA-ARS Tropical Agriculture Research Station (TARS), the University of Puerto Rico, Cornell University, and the University of Tennessee. TARS-HT1 is tolerant to high day and night-time temperature stress and TARS-HT2 is tolerant to high daytime temperature stress and moderate nighttime temperature stress. Use of TARS-HT1 and TARS-HT2 can improve yield under high temperature conditions. In addition, these germplasm lines can be used for improvement of heat tolerance in large-seeded Andean beans.