Western white pine: Difference between revisions

The western white pine is monocot; there are 3 main seasons in which the pine will start growing. July through August is very common with the strobilus buds. The oval stimulates strobilus come in clusters of 15-25 they pop up in the middle of the crown 10 cm by 4cm in length. [http://www.na.fs.fed.us/pubs/silvics_manual/Volume_1/pinus/monticola.htm]June and July are the money seasons for pollination, the pollen dissemination will last around 8-9 days. The Western white pine is mostly female it will stay this way its whole life pretty much when its production age at 7 through 20. These ovulates grow on the tips of the branches, people will be able to examine these ovulates in mid –June this is when they're most out.  

August and September are the main seasons for when western white pines become ripe. When the cones are ripe they will turn a yellowish color. At the age of 7 the western white pine is able to produce its cones, and it can keep this process up until its 70 years old. The cone beetles are the trees worst fear they can cause practical to almost complete failure in the cone production. There are also moths that can cause a loss in seed growth. The seeds can survive harsh conditions when off of the branches of the western white pine; they can still be useable even after a whole winter. Studies found that you can keep the seeds viable for 20 years off the branch if you store them at -18C (0F) to -15C (5F)

For germination to occur the seed must go through 30-120 days of cold temperature. The seed coat controls the dormancy the most. The seeds will most likely germinate in the late spring, the germination in lower elevations germinate in late April. The trees in the higher elevation will not germination if you increase the sunlight on the cone scientist have found that the soil is controlling center in the beginning for germination. Seedlings off of the pine tree usually die because of insects and diseases. [http://www.na.fs.fed.us/pubs/silvics_manual/Volume_1/pinus/monticola.htm]