This may require planting deeper than 1.5 inches under dry soil conditions. If you must plant deeper than 1.5 inches in order to place the seed into uniform moisture, make sure the variety has an excellent emergence score or long hypocotyl. Also, consider seed size when deciding how deep to plant.
Sperm is made in the testes, but stored in the epididymis, a gland where it is also matured. Sperm from the testes cannot yet move on their own.
Best Answer: Sperm are thought to retain fertilizing capability for up to 48 hours once they have entered the female genital tract, but it's possible their lifespan is even longer. Sperm production by the testicle takes about 90 days; the immature sperm are then deposited in a receptacle called the epididymis.est Answer: Sperm are thought to retain fertilizing capability for up to 48 hours once they have entered the female genital tract, but it's possible their lifespan is even longer. Sperm production by the testicle takes about 90 days; the immature sperm are then deposited in a receptacle called the epididymis.