World Agroforestry Centre | agroforestree database 4.0

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This database provides detailed information on a total of 670 agroforestry tree species. It is intended to help field workers and researchers in selecting appropriate species for agroforestry systems and technologies.

For each species, the database includes information on identity, ecology and distribution, propagation and management, functional uses, pests and diseases and a bibliography.

This project has been funded by the British Department for International Development (DFID, the European Union and the World Agroforestry Centre (ICRAF).

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Agathis macrophylla	To achieve greater seed viability and longevity, recently matured cones should be collected. Cones should be open air dried, and seeds extracted immediately to minimize fungal damage and/or germination in the cone. On average about half the seeds are viable. Freshly collected seed has about 5000 - 6000 viable seeds/kg. Pacific kauri seed storage behavior is intermediate. For long term storage, seed should be dried to around 9 - 13% moisture content and kept at -13°C. Drying below 7% moisture content reduces viability. It is recommended that de-winged seeds be sown immediately following collection and processing. No pretreatment is required, and fresh, undamaged seeds germinate rapidly, commencing within 2 - 7 days (at 26°C) and completed by 14 days. For introduction into areas outside of its natural range, it is important to inoculate seedlings with appropriate mycorrhizal fungi. Seedlings reach a plantable size after about 6 - 12 months in the nursery, and are suitable for field planting when they have reached 25 - 30 cm.
Irvingia gabonensis	Seed storage behaviour is orthodox.
Jatropha curcas	Seeds are oily and do not store for long. Seeds older than 15 months show viability below 50%. High levels of viability and low levels of germination shortly after harvest indicate innate (primary) dormancy.
Nephelium lappaceum	Seed storage behaviour is recalcitrant, whole seed mc at shedding is 36%, viability is reduced by 12% on desiccation from 36% to 25% mc, and no seeds remain viable when the mean mc is reduced to 13%. However excised embryos tolerate desiccation to 14-15% mc, 67% survive desiccation to 8-9% mc; and 40% survive overnight in liquid nitrogen when excised embryos are treated with 10% DMSO plus 3% sucrose followed by partial desiccation (1-2 hours).
Schinziophyton rautanenii	Seeds remain viable for up to 2 years when stored at 10 deg C. Pretreatment for seed involves removal of seeds from the woody endocarp followed by soaking in 1% ethrel for 24 hrs, however the ethrel treatment seems insignificant (Chimbelu, 1983).
Trichilia emetica	Seed storage behaviour is recalcitrant; seeds are sensitive to desiccation and cannot be stored because they lose viability within a short time. There are approximately 200-300 seeds/kg.
Vitellaria paradoxa	The seeds of Vitellaria are recalcitrant; viability falls rapidly a week after removal from the fruit and is lost completely within 3-6 weeks. Ripe fruit that falls directly to the ground germinates easily if the soil is moist, but many seedlings succumb to drought and bush fires. Germination is cryptogeal; that is, the shoots arise from belowground even though the seed germinate on the surface.