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Registration of USDA‐N7004 soybean germplasm with good yield, elevated seed protein, and 25% exotic pedigree from Tamahikari
Author(s) -
McNeece Brant T.,
Bagherzadi Laleh,
Carter Thomas E.,
Mian M. A. Rouf
Publication year - 2020
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 - 10.1002/plr2.20039
Subject(s) - germplasm , cultivar , biology , agricultural experiment station , yield (engineering) , agronomy , breeding program , genetic diversity , microbiology and biotechnology , horticulture , agriculture , ecology , population , materials science , demography , sociology , metallurgy
USDA‐N7004 (Reg. no. GP‐438, PI 692263) is a conventional late maturity group VII soybean [ Glycine max (L.) Merr.] germplasm with good yield potential, elevated seed protein content, and 25% exotic pedigree from Japanese cultivar Tamahikari (PI 423897). USDA‐N7004 was jointly released as a non‐GM germplasm by the USDA‐ARS and the North Carolina Agricultural Research Service in September 2019. USDA‐N7004, experimental name N10‐711, was derived from a cross of USDA‐ARS breeding lines NTCPR01‐163 (‘Dillon’ × Tamahikari) and N03‐832. Across 27 environments of the USDA Uniform Soybean Tests‐Southern States (Uniform Tests), USDA‐N7004 yielded 97 and 94% of elite checks ‘N7003CN’ and ‘NC‐Wilder’, respectively. Over 20 environments of United Soybean Board Southern Diversity Yield Trials (Diversity Trials), USDA‐N7004 yielded 98 and 94% of the same two checks, respectively. In the Uniform Tests, seed protein content of USDA‐N7004 (421 g kg −1 ) was significantly higher than N7003CN and NC‐Wilder on a zero‐moisture basis (405 and 399 g kg −1 , respectively). The meal protein content of USDA‐N7004 (49%) was significantly higher than N7003CN or NC‐Wilder (47%) in the Uniform Tests as well as in the Diversity Trials. USDA‐N7004 should be a useful parent in breeding programs aimed at broadening the genetic base of soybean along with improving seed protein and seed yield.

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