Stuck in someone else's frames? break free!
|
|
 |
 |
 |
|
  |
|||
|
PLANTING SEEDS AT DIFFERENT DEPTHS How deep should seeds be planted? Does it make any difference at all? Let's find out, by planting seeds in jars with potting soil. We'll use pint-sized jars, because they are just tall enough to do what we need to do. In each jar of moist potting soil, we will plant two seeds. Jar number 1 will have seeds planted 1/2 inch deep, into jar number 2, we'll plant them 1 inch deep. Into jar number 3, we'll plant them 2 inches deep. Jar number 4 will have seeds planted at 3 inches deep, and jar number 5 will have seeds at 4 inches deep. We will wrap black paper around the outside of each jar, and put the jar number onto a white sticker, which will go onto the black paper. Why do you think we are putting black paper over the outside of the jars? When plants grow in nature, do the roots get light? Can we see them? Soil is dark, and the roots grow best in the dark. Since we can't watch plant roots grow outside in the ground, we learn the secret by making the embryos think they are in the ground. If we want to see the roots while the plants are growing, we need to be able to take off the "darkness." Remember to keep the soil moist, because if they dry out, the seeds will die. Each day, let's check to see if the seeds have germinated, and how they are growing. As usual, we'll make a list of the jar numbers and the dates when we can tell that the seeds have germinated. When green shows at the top of the soil, we will make a note of that, and we'll measure the green growth each day. How do embryos know which way is up? Why does it matter? If carrots could grow with the stems and leaves under the soil, and the part we eat sticking up above the soil, they could be picked instead of dug out of the soil. Why do you think they grow with the good part under the ground?  Any problems with this page? Send URL to
webmaster. Thank you!
We publish two newsletters a couple of times a month. To subscribe, send a blank email to the appropriate email address. Topica will send you a message asking if you really intended to subscribe - just click reply - that's it! Free Recipe Collection Newsletter: Jewish Recipe Collection Newsletter:
Tired of Geek Speak when
|
 |
||||||||||||||||||||||||||||||
