the most anterior portion of the frontal lobe of each of the brain's cerebral hemispheres. It acts in attention, planning, and memory and is separated into a dorsolateral region and an orbito-frontal region.PREFRONTAL CORTEX: The prefrontal cortex is commonly referred to as the frontal association area..he most anterior portion of the frontal lobe of each of the brain's cerebral hemispheres. It acts in attention, planning, and memory and is separated into a dorsolateral region and an orbito-frontal region.
Growing Seedless Watermelons. If youâve enjoyed a delicious seedless watermelon, you might wonder how they are grown. It starts by treating watermelon seedlings with a chemical that makes the plant have 4 times (4X) their normal number of chromosomes. After planting, when this watermelon flowers, it receives pollen from a nearby normal (2X) watermelon. The result is a fruit that has seeds that are 3X .
For regular watermelons, sow three to four seeds per hill, spacing the hills eight to ten feet apart. Space the rows ten feet apart or more, if you have room. Thin watermelon seedlings in each hill, to two seedlings one week after they have germinated.When planting in rows, space the seeds four to six inches apart and thin seedlings to ten to twelve inches apart.mportant: Make sure you know how many days you need to reach maturity for the variety you buy. Give a little more time than the seed packet suggests to reach harvest, before that first killing frost. Days to Maturity: 80 to 90 days for baby bush varieties, and 90 to 100 days or more for the larger varieties.