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Registration of BS39 Maize Germplasm
Author(s) -
Hallauer Arnel R.,
Carena Marcelo J.
Publication year - 2016
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/jpr2015.02.0008crg
Subject(s) - germplasm , biology , temperate climate , selection (genetic algorithm) , cultivar , tropics , population , agronomy , microbiology and biotechnology , ecology , demography , artificial intelligence , sociology , computer science
BS39 (Reg. No. GP‐593, PI 674097) is a new maize ( Zea mays L.) strain of Tusón germplasm for adaptation to temperate environments. BS39 serves as a new and unique source for inbred line and population development in temperate environments. After 11 cycles of stratified mass selection for earlier flowering, based primarily on silk expression, BS39 was included in experiments across six Iowa environments in 2010 and 2011. These trials included other tropical cultivars adapted to midseason temperate environments and adapted populations from recurrent selection population improvement programs. Stratified mass selection is confirmed to be a cost effective and successful method for adapting populations. Tusón was not an exception as, after selection, it was 3 to 4 wk earlier, a similar result obtained in other tropical populations adapted to temperate environments in Iowa and North Dakota. Grain yield and other agronomic traits of BS39 were similar to those for the adapted tropical cultivars and improved cultivars from recurrent selection programs. BS39 includes 100% tropical germplasm that has been adapted to midseason temperate environments. BS39 is an option for maize breeders to expand the genetic base of their current breeding programs. It has the potential to contribute useful and unique alleles to US Corn Belt breeding programs not present in current US genome sequences.