International Sugar Journal

Performance of sugarcane families at different stages of a selection program* [Full subscriber]

Abstract In the first (seedling) stage of a sugarcane breeding selection program, experimental precision is very low due to small plot size – a single stool – and lack of replication. These factors contribute to reduced selection efficiency. In this stage, the selection of families can be adopted advantageously as all traits have low heritability – g2 < ≈ 0.2. The objective of this work was to compare family selection by the Blupis procedure with individual selection to increase productivity (TSH) in the first stage (T1) and monitor their performance in subsequent clonal stages – T2 and T3 – of…

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