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Variation in germination and seedling emergence of sugar beet at sub‐optimal temperatures
Author(s) -
BROWN S. J.
Publication year - 1980
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1980.tb03980.x
Subject(s) - germination , seedling , biology , sugar beet , sugar , agronomy , horticulture , botany , food science
SUMMARY Patterns of germination and seedling emergence at different temperatures were determined for a wide range of sugar beet accessions. There was good differentiation among seed lots and a close relationship between germination and emergence in temperature regimes of 20 h at 5 °C: 4 h at 7 °C, and constant 5 °C. Failure to germinate at temperatures between 5°C and 7 °C was more often associated with suppression of germination than with death of embryos. Results indicated that tests of germination at low temperatures would lead to more accurate predictions of field emergence than standard tests at 20 °C. Furthermore, tests at 20 °C may not give accurate estimates of potential viability.