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Registration of a Small‐Red Dry Bean Germplasm, TARS‐LFR1, with Multiple Disease Resistance and Superior Performance in Low Nitrogen Soils
Author(s) -
Porch Timothy G.,
Beaver James S.,
Abawi George,
Estévez de Jensen Consuelo,
Smith James R.
Publication year - 2014
Publication title -
journal of plant registrations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.316
H-Index - 21
eISSN - 1940-3496
pISSN - 1936-5209
DOI - 10.3198/jpr2013.03.0015crg
Subject(s) - germplasm , phaseolus , biology , agronomy , rhizobia , nitrogen fixation , plant disease resistance , root rot , dry bean , horticulture , bacteria , genetics , gene , biochemistry
TARS‐LFR1 (Reg. No. GP‐292, PI 668258) is a multiple disease resistant common bean ( Phaseolus vulgaris L.) germplasm developed through recurrent selection by the USDA–ARS, and by the University of Puerto Rico and Cornell University Agricultural Experiment Stations that has superior performance in low nitrogen (N) soils. Root rots, caused primarily by soil‐borne fungi and Oomycetes, are important constraints to common bean production. These diseases are becoming a more serious problem under low‐input, low‐fertility, and climatic change conditions. In addition to root rot, this germplasm has resistance to common bacterial blight, caused by Xanthomonas axonopodis pv. phaseoli (Smith) Dye, and Bean common mosaic virus and yields well in association with rhizobia through biological nitrogen fixation. This combination of traits could play an important role in low‐input and organic production systems. TARS‐LFR1 has shown consistently high yield potential under root rot and low soil N conditions, and the use of this improved germplasm by breeding programs or in production zones affected by these stresses can potentially increase yield of common bean.