2026-09-21T23:10:48Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/71600 2023-07-11 col_2142_5131 col_2142_34137 com_2142_5130 com_2142_34136 com_2142_397

1984 1984 Harrison, Stephen Alan 2014-12-16T19:03:26Z 2014-12-16T19:03:26Z 10000-01-01 Increasing use of reduced-tillage techniques, earlier planting, and late cold snaps can result in the exposure of emerging soybeans to suboptimal soil temperatures. Such exposure can result in decreased emergence, reduced seedling vigor, increased incidence of disease, and lowered yields. Soybean genotypes with superior cold temperature emergence (CTE) ability will avoid these problems. This study was conducted to determine the relationships of CTE ratings to field performance and seed yield of early-planted soybeans, and to quantify the inheritance of CTE. Seventeen adapted genotypes were screened for CTE in the laboratory for three years, and in the field for two years. Field performance of early-planted soybeans was related to CTE ability within years. Large seed source effects were observed. Significant genotypic variation for CTE was found among the F(,4) progeny of four soybean populations. Heritability estimates for CTE averaged 75%. Made available in DSpace on 2014-12-16T19:03:26Z (GMT). No. of bitstreams: 1 8502163.pdf: 1683431 bytes, checksum: 3cd53f4e8ff9f99570bbe7db9db0a7c6 (MD5) Previous issue date: 1984 Embargo set by: Seth Robbins for item 71766 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community indefinitely during batch ingest of legacy ETDs U of I Only 62 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1984. http://hdl.handle.net/2142/71600 (UMI)AAI8502163 Agriculture, Agronomy Inheritance of Cold Temperature Emergence in Soybeans and Its Relationship to Field Emergence and Seed Yield of Early Planted Soybeans (Heritability, Genetic, Vigor) text Agronomy Agronomy University of Illinois at Urbana-Champaign Dissertation Ph.D.