Progesterone. Print | Email article to a friend | Last updated: January 14, 2015. Progesterone is a hormone released by the corpus luteum in the ovary. It plays important roles in the menstrual cycle and in maintaining the early stages of pregnancy. It may also be involved in the growth of certain cancers.
Maple helicopters fall before the leaves drop from the trees. Maple trees (Acer spp.) produce winged seeds called double samaras, which twirl to the ground in late summer or early fall. They resemble helicopters in motion, earning them the common name of helicopters or whirligigs.
This video will help you if you have maple trees and want to know how to tap them for their maple sap. Typically the best time to tap maple trees is between February and March, but ultimately the correct time will depend on your climate. We recommend that you check with local resources to determine the best tapping time for where you live. Making maple syrup from the sap you collect is quite easy. Basically all you do is boil down the sap and condense it. It takes approximately 40 parts of maple sap to make 1 part maple syrup. Itâs very important to treat your maple trees with the same respect and care that you give all other crops you grow and harvest. By tapping your maple trees responsibly, you will be able to tap them for sap year after year.