Details for: PI 708106, Phaseolus vulgaris L., 'AAR2'


Summary Data
Taxonomy:
Phaseolus vulgaris L.
Cultivar:
'AAR2'
Origin:
Developed – Puerto Rico, United States
Received by NPGS:
28 May 2025
Form Received:
Seed
Life Form:
Annual
Availability
This accession is not available. Contact site for status.
 
There are no images for this accession.

Core Passport Data
Taxonomy:
Phaseolus vulgaris L.
Cultivar:
'AAR2'
Origin:
Developed – Puerto Rico, United States
Received by NPGS:
28 May 2025
Form Received:
Seed
Life Form:
Annual
Source History
Developed

Puerto Rico, United States

Developer(s):
Accession Names and Identifiers
'AAR2'
Type: Cultivar name

Narrative
AAR2: Andean abiotic resilient (AAR) common bean germplasm lines AAR1 to AAR7 were developed from an international bulk breeding effort with the goal of improving abiotic stress tolerance, combined with disease resistance, through increasing genetic richness. These lines represent unique sources of climate resilience selected by USDA-Agriculture Research Service (ARS) in Puerto Rico, the Agriculture Research Council in South Africa, or the USDA-ARS in Washington State, with subsequent selection in Puerto Rico for tolerance against multiple stresses including drought, high ambient temperature, low N soil fertility, and root rot. The resulting seven lines all possess drought tolerance and varying levels of heat tolerance. AAR2 (Reg. No. ___, PI ___) is a light red kidney with moderately high levels of heat tolerance. In addition, AAR2 showed moderate ashy stem blight resistance. All seven lines exhibit early flowering and maturity, a type I compact determinate bush growth habit, and a rapid and definitive switch from vegetative to reproductive development. These characteristics associated with escape are also associated with resistance mechanisms in warmer, drier climates.
Phaseolus vulgaris L.
Genus:
Phaseolus
Section:
Phaseolus
Family:
Fabaceae (alt. Leguminosae)
Subfamily:
Faboideae
Tribe:
Phaseoleae
Subtribe:
Phaseolinae
Nomen number:

27632
Place of publication:

Sp. pl. 2:723. 1753
Verified:
08/19/2010 by ARS Systematic Botanists.
Other conspecific taxa
Phaseolus vulgaris L. var. aborigineus (Burkart) Baudet (118 active accession[s])
Phaseolus vulgaris L. var. vulgaris (0 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Heterotypic Synonym(s)
Phaseolus nanus L.
Phaseolus vulgaris L. var. mexicanus Freytag, nom. inval.

Common names
LanguageNameAlternate namenoteseqCitation
Englishbean  1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
Italianfragiolo  2International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.
Japanese Rōmajiingen-mame  2Walker, E. 1976. Flora of Okinawa and the southern Ryukyu Islands.
Swedishböna  2Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Transcribed Chinesecai dou  2Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
Transcribed Koreandeonggulgangnamkong  2Lee, Y. N. 1997. Flora of Korea.
Transcribed Koreangangnamkong  2Lee, Y. N. 1997. Flora of Korea.
Transcribed Koreanjuldangkong  2Mun-Chan, B. et al. 1986. A checklist of the Korean cultivated plants. Kulturpflanze 34:117.
Annotations
Other Links
Actions
  • Non Genetically-Engineered Organism: Per Deposit Form. 04 Jun 2025.
Pathogens
Vouchers
Citations
Pedigree
Description:
NY105 (ADP-607; Cornell U. breeding line) / TARS-HT1 (ADP-632; USDA-ARS released germplasm)