date:Dec 18, 2018
and plums, Preedy adds.
To explore the relationship between chilling period and bud opening, the ecologists carried out controlled temperature experiments (at temperatures ranging from -4 to +8C for up to 150 days) on 20 different blackcurrant varieties. The findings were then compared with blackcurrant cuttings sent in from farmers across the UK and temperature data obtained from local met office stations.
They found that each blackcurrant variety preferred different levels of chilling. In ad