Chemical Weathering. Chemical weathering takes place in almost all types of rocks. Smaller rocks are more susceptible, however, because they have a greater amount of surface area. Chemical reactions break down the bonds holding the rocks together, causing them to fall apart, forming smaller and smaller pieces.
Autos generally are ready to harvest sooner than photoperiod. Most autos are ready to harvest 65-90 days after being sprouted from seed. Some super autos have been bred to grow very big and can take up to 100 days before harvest.
If you are looking for a relatively fast maturity time, look no further than the West Indian avocado variety. Lacking the high fruit oil content of other varieties, the West Indian avocado will take no longer than eight months to move from blooms to harvest. In fact, the blooming season begins in February or March, and you may see mature avocados ready for picking between May and September.