Table 1 Descriptors included in the PolLimCrop dataset, with description and descriptor levels.

From: PolLimCrop, a global dataset of pollen limitation in crops

Descriptor name

Description

Descriptor levels

line

Unique identifier assigned to each line

Number [1–1169]

unicode

Unique code, constructed using “line”, the first 3 letters of the first author’s last name, “year of the experiment”, “crop”, “plant accession” and “factors”

NA

article code

Study identifier, represented by 1st author’s last name, publication year and DOI

e.g. Castro_2021_”DOI”

DOI citation

Study DOI or citation

NA

species

Species name of the crop

NA

crop name

Common name of the crop

NA

family

Plant family of the crop

NA

plant accession

Cultivar, subspecies, clone or another further taxonomic rank and/or subtype given by the published document

NA

crop part

Crop’s economically used part (i.e. seed or fruit)

Seed [S] or fruit [F]

continent

Continent location of the experiment

NA

country

Country location of the experiment

NA

locality

Specific location of the experiment

NA

latitude; longitude

Geographic coordinates (latitude, longitude) in decimal degrees. If not given, the most specific location was used for obtaining the coordinates

NA

precision

Precision indication for geographic coordinates

given coordinates [S]; estimated coordinates [E]

year of the experiment

Year in which the pollination experiment was performed (first year given in multiple-year experiments).

NA

scale

Scale levels of the experiment

Individual flower [flower], branch [branch], inflorescence or cluster [inflor.] or entire plant [plant]

supplement type

Additional treatments applied to the hand supplementation treatment

Hand pollen supplementation (HPS) [H], HPS with pollinator exclusion [BH], HPS with the emasculation of flowers [EH], HPS with pollinator exclusion and the emasculation of flowers [BEH]

factors

Attributes that make the entries statistically independent within the same study

NA

production variables + pollination treatments + type of data

Data (mean [m], standard deviation [sd], and sample number [n]) related to production variables associated with the pollination treatments included in the dataset

Production variable levels: Fruit set [FS], seed set [SS], seed number [SN], fruit weight [FW] and seed weight [SW]; Pollination treatment levels: hand pollen supplementation [SUP], natural pollination [NAT], pollinator exclusion [BAG]; e.g. FS_SUP_m

PL proportion

Pollen deposition limitation (PL) proportion values calculated for each entry

In proportion (0–1)

PL effect size

Pollen deposition limitation (PL) effect size values calculated for each entry

Effect size (log response ratio)

effect size constant

Constant use indication for calculation of the effect size

With constant [Y]; with no constant [N]