Tropical strains of maize (Zea mays subsp. mays L.) flower very late in temperate
environments. This is a barrier to maize diversification and improvement in regions where a …

Maize (Zea mays L.) is one of few crops that can offer significant genetic gains with the
utilization of genetic diversity. Genetically broad-based germplasm has the potential to …

Tropical maize can be used to diversify the genetic base of temperate germplasm and help
create climate-adapted cultivars. However, tropical maize is unadapted to temperate …

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 …

Crop species exhibit an astounding capacity for environmental adaptation, but genetic
bottlenecks resulting from intense selection for adaptation and productivity can lead to a …

Use of photoperiod‐sensitive tropical germplasm for breeding in temperate regions is
hampered by several problems. The inability to accurately evaluate photoperiodically …

The 38 maize (Zea mays L.) populations described herein (Reg. no. GP-512–GP-549,
PI613059–PI613096) are the result of over 30 yr of population development and …

Nine open‐pollinated populations of maize (Zea mays L.),'HIC1'(Reg. No. CV‐2, PI
652866),'HIC2'(Reg. No. CV‐3, PI 652867),'HIC3'(Reg. No. CV‐4, PI 652868),'HIS1'(Reg …

Replicated breeding trials coordinated by North Carolina State University as part of the GEM
project, and conducted by several public and private GEM cooperators, have identified nine …

These germplasm lines (with PI numbers ranging from 550899 to PI550925) were released
in 1991 for use as source germplasm or as parental lines in high-rainfall tropical midaltitude …