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ARS Home » Southeast Area » Mayaguez, Puerto Rico » Tropical Crops and Germplasm Research » Research » Publications at this Location » Publication #248761
Title: TARS-HT1 and TARS-HT2 heat-tolerant dry bean germplasm

Author
item Porch, Timothy - Tim
item Smith, James - Rusty
item BEAVER, JAMES - University Of Puerto Rico
item GRIFFITHS, P - Cornell University
item CANADAY, C - University Of Tennessee

Submitted to: HortScience
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 4/2/2010
Publication Date: 8/1/2010
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.