Divergent selection in a maize population for germination at low temperature in controlled environment: study of the direct response, of the trait inheritance and of correlated responses in the field.

Abstract excerpt

Improving cold tolerance in maize (Zea mays L.) is an important breeding objective, allowing early sowings which result in many agronomic advantages. Using as source the F(2) population of B73 × IABO78 single cross, we previously conducted four cycles of divergent recurrent selection for high (H) and low (L) cold tolerance level, evaluated as the difference (DG) between germination at 9.5 °C and at 25 °C in the...

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