Pinus oocarpa (Ocote pine)

Viable seeds / kg (approx.): 43,000

Minimum purchase: 100 g




Description



Ocote pine occurs naturally from
Mexico to Nicaragua. It reaches heights of up to 45 m and diameters of up to 1
m, with a straight and cylindrical stem.



Uses



P. oocarpa is used in pure plantations,
along boundaries, windbreaks, for erosion control, and for its ability to grow
in infertile and degraded sites, it is suitable for soil recovery. It has also
been used as ornamental. The wood is moderately heavy, of fine texture, medium
to high shine, yellowish to pale brown, with clearly visible growth rings. The
wood is of great versatility and can be used in general construction (floors,
interior walls, doors, window frames), furniture, electrical power poles,
sleepers (treated), boxes, and many other items. It is also used as firewood,
and the resin is used for the manufacture of disinfectants, paints and
cosmetics.



Environmental conditions



It is found at altitudes from 200
to 2500 masl, but it reaches its best development from 600 to 1800 masl. In its
natural environment, mean temperatures are of 13-23 °C and mean rainfall of
650-2000 mm, with a dry season of 5-6 months.



Soils



It is a pioneer species that adapts
to different types of soil, eroded and infertile, thin, sandy, stony and
rugged, from acid to neutral (4.5-6.8), but with good drainage, but fertile and
deep soils are required for an optimum growth.



Seeds and nursery



As a pre-germination treatment it is recommended to soak the seeds in
running water at room temperature for 12 hours. For the seedbed, a loose
substrate such as river sand should be used, well washed and disinfected. The
seed should be distributed evenly or in rows separated by 2 cm, sowing
superficially (2 mm). Germination occurs after 6-20 days and transplanting must
be carried out when the seedlings have reached 3-8 cm in height. The root is
usually very long, so it must be pruned to about 3-4 cm in length. When
transplanting, be sure to make a hole deep enough in the substrate to avoid
curving up of the roots. Shade should be provided for the first 2-3 weeks after
transplanting, for instance using shade clothing (saran) 50%. If the nursery is
new or if the soil has been sterilized, it is essential to inoculate the plants
with mycorrhizae; otherwise they will hardly grow and will become yellow and
weak. For the inoculation, surface soil from a well-established pine forest can
be used, mixed with the substrate used in the nursery, or by irrigating the
plants several times after transplanting with a spore solution of the fungus. Plants
properly inoculated will be ready for field planting after 5-6 months, when
they have a height of 25-30 cm. A couple of weeks before planting out in the
field it is recommended to reduce watering to stimulate the lignification of
the stems.



Growth



In trials and plantations as
exotic, the species has shown mean annual increments (MAI) of 1.5 m in height and
up to 2.1 cm in diameter during the first ten years, and MAI in volume of 10-18
m3 / ha / year. Commercial rotation is estimated between 23 and 30
years.


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Banco de Semillas Forestales

Costa Rica

USD 470/kg