Chilling and Forcing From Cut Twigs-How to Simplify Phenological Experiments for Citizen Science.

ABSTRACT: Low-cost phenological experiments with cut twigs are increasingly used to study bud development in response to spring warming and photoperiod. However, a broader variety of species needs to be tackled and in particular the influence of insufficient winter chilling deserves more attention. Therefore, we investigated if and how chilling requirements can be efficiently investigated by cut twigs and how this low-tech approach could be successfully implemented as a citizen science or school project. We conducted an experiment on bud burst and leaf development of Corylus avellana L. twigs, with natural chilling outdoors on a shrub (S) and another chilling treatment as cut twigs in containers (C), and subsequent forcing indoors. Subsampling of the number of cutting dates and number of twig

SUBMITTER: Menzel A 

PROVIDER: S-EPMC7498619 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature