Pollination and Seed Development
The pinyon pine nut (seed) species will take 18 months to complete its maturity; however, to reach full maturity, the environmental conditions must be favorable for the tree and its cone.
Development begins in early spring with pollination. A tiny cone, about the size of a small marble, will form from mid-spring to the end of summer; the premature cone will then become and remain dormant (with a cessation of growth) until the following spring. The cone will then commence growth until it reaches maturity near the end of summer. The mature pinyon pine cone is ready to harvest ten days before the green cone begins to open. A cone is harvested by placing it in a burlap bag and exposing it to a heat source such as the sun to begin the drying process. It takes about 20 days until the cone fully opens. Once it is fully open and dry, the seed can be easily extracted in various ways. The most common and practical extracting method used is the repeated striking of the burlap bag containing the cone(s) against a rough surface to cause the cone(s) to shatter, leaving just the job of separating by hand the seed from the residue within the bag.
Another option for harvesting is to wait until the cone opens on the tree (as it naturally will) and harvest the cone from the pinyon pine, followed by the extracting process mentioned above. Fallen seed can also be gathered beneath the trees.
Read more about this topic: Pine Nut
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