Intermediate-day Onions produce bulbs where the total amount of daylight is approximately 12-14 hours, which is the amount mid-section states receive in the summer. Intermediates are also known as day-neutral onions. Long-day Onions produce bulbs where the total amount of daylight is 14-16 hours.
Anaerobic Zone. The anaerobic zone is slightly more intense than the aerobic zone. Anaerobic means without oxygen, so don't be surprised if you are unable to speak except for short words at a time in this zone. The anaerobic zone is 80 to 90 percent of your maximum heart rate.erobic Zone. The aerobic target zone is 70 to 80 percent of your maximal heart rate. Multiply your maximum heart rate by this percentage to determine the intensity you must maintain to remain in this zone.
Aerobic respiration (with oxygen) can produce 36 to 38 ATP molecules from each glucose molecule. 1  Anaerobic respiration (without oxygen) only allows glycolysis to continue which produces 2 ATP molecules from each glucose molecule. 2  Therefore, aerobic respiration is some 19 times as efficient as anaerobic respiration.