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Table 2 Primary inclusion and exclusion criteria based on title and abstract

From: Strategies for managing spring frost risks in orchards: effectiveness and conditionality—a systematic review

Criteria

Inclusion

Exclusion

Population

All temperate perennial fruit trees of commercial interest (Apple, Pear, Sweet cherry, Peach, Nectarine, Plum, Apricot, Avocado, Lemon, Orange, Grapefruit, Mandarin, Pomelo, Grapevine)

Low-height shrubs

Berry plants

Other non-fruit horticulture

Other non-temperate horticulture

Interventions

Physical on-site treatments or devices that can be applied in anticipation, during or just after a frost event, like wind machines, sprinklers, foliar applications of chemicals, coverages, modified pruning

Management choices like income or crop diversification

Crop breeding

Genetic modifications

Financial insurances

Outcome

Measures of ambient temperature

Measures of damage to flowers, buds or fruitlets

Measures of production

Advance/delay of phenological stages

Evolution of frost hazards or vulnerability through time and space

Evidence on post-harvest conditions

Change in cold hardiness during dormancy

Comparators

Investigations of effectiveness against a control population or variants of the same treatment/device

Lack of comparators or other measures of success

Model vs observation

Climate zones

Temperate

Mediterranean

Tropical

Subtropical

Cold climates

Language

English, French, German, Dutch, Spanish

Any other language

Type of publication

Peer-reviewed journal

Organisational report

Professional journal article

Thesis

Web page/Blog

Unpublished communication

Type of study

Field experiment

Greenhouse experiment

Laboratory experiment

Literature review

Mathematical model

Risk assessment studies

Micro meteorological studies to explore the potential for an intervention to function without observations of the intervention itself (i.e., Inversion strength characterisations)