Experimental dataset for the effect of chilling on budburst

We obtained available information from 23 experimental studies about chilling effects in budburst and established an experimental database of budburst date for 50 temperate and boreal species from 33 provenance origins (94 species-provenance combinations)., To identify phenological experiments that manipulated chilling and forcing, we searched both ISI Web of Science and Google Scholar with TOPIC = (budburst OR leaf out OR flowering OR phenology) AND chilling. The initial searches yielded more than 200 papers. Subsequently, we reviewed and assessed each paper strictly. The papers that were included in the analyses needed to meet the following criteria: (1) focusing on plant species existing in the ground phenological dataset; (2) testing for the effects of chilling on budburst, leaf-out or flowering; (3) having at least 3 chilling treatments. As a result, only 23 papers were included in the analyses.
These papers first exposed dormant twigs or seedlings to different periods of natural low temperatures in the field or artificial low temperatures in the refrigerator and then to different forcing temperature and photoperiod regimes in growth chambers. The most important response data in these papers are days to budburst and duration of chilli...,
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, # Experimental dataset for the effect of chilling on budburst

The explanations to the headers of the supplementary_data
Source original reference (see Table S1)
genus: genus name
species: species name
BBCH: BBCH code of phenological event in the experiment
Prov_code: The code to distinguish different provenances
prov_lat: latitude of provenance origin
prov_lon: longitude of provenance origin
sam_lat: latitude of the sampling site
sam_lon: longitude of the sampling site
sampleyear: the year to sample the plant material; 999 represent unknown
sampleday: the day of year to sample the plant material
chilling_T: the temperature the plant materials were chilled (\"natural \" represent that the plant materials were chillled in natural conditions )
chilling_day: number of days from 1 Nov to the date when plant materials were moved to forcing condition
forcing_T: the temperaure of the forcing treatments (\"natural \" represent that the plant materials were forced in natural conditions )
forcing_...