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‘Latitude 34’, a Perennial Peanut for Cool, Dry Climates
Author(s) -
Muir James P.,
Butler Twain J.,
Ocumpaugh William R.,
Simpson Charles E.
Publication year - 2010
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/jpr2009.08.0444crc
Subject(s) - perennial plant , forage , agronomy , biology , latitude , cultivar , legume , hay , environmental science , geography , geodesy
‘Latitude 34’ (Reg. No. CV‐109; PI 658497) rhizoma peanut ( Arachis glabrata Benth. var. glabrata ) was selected by Texas AgriLife Research personnel and released in 2009. It was originally collected in 1959 near Trinidad, Paraguay (27° 8′S 55°37′ W, elevation 50 m). It was selected for persistence and early spring production under cold, dry climatic conditions in response to the need for an adapted, freeze‐tolerant perennial legume forage for cattle, horse hay, small ruminant, and wildlife production. It was compared with other accessions and cultivars at multiple sites within Texas and Oklahoma and has proven persistent over 15 yr at Texas and Oklahoma locations near 34°N latitude when air temperatures reached −15°C and 10 cm subsoil temperatures reached 1°C with as little as 450 mm rainfall yr −1 . Forage yields of Latitude 34 in south Texas were comparable to other releases, up to 11.5 Mg ha −1 yr −1 ; long‐term yields in north Texas are likely lower but persistence is superior to currently available cultivars. Latitude 34 shows promise as a perennial warm‐season legume forage for subhumid regions with cold winters and hot dry summers.