What will happen if we put gram seed on moist cotton?
Answers
Gram seeds are an excellent indicator for the growth patterns of young saplings and plants. They provide an opportunity to observe how seeds sprout. Based on the situation, the experiments A, B and C show different results.
In experiment A, the seeds grow at a good rate thanks to the moisture they absorb from the moist cotton.
In experiment B, the seeds grow at a rate much faster than the one in A since they have a longer time to absorb water and swell up.
In experiment C, the seeds do not sprout at all since they are killed on exposure to boiling water.
For the first part of germination, all a seed needs is warmth and moisture. Soil and nutrients come later when the seedling starts to develop. Gardeners generally would use a soilless seed-starting mix to germinate seeds, but they can keep it even simpler by using common cotton wool. This medium provides moisture and, as an added bonus, allows gardeners to watch the seeds germinate on top of the pillowy white surface, an exciting project to get kids engaged in the magic of gardening.
1. Spread a layer of cotton wool over the bottom of a seed-starting tray, whether it's unwrapped from long sheets or formed from cotton balls.
2. Mist the cotton wool with water until it is evenly damp.
3. Pull the cotton wool apart slightly to break up the fibers a bit. Nestle the seeds into the top of the cotton wool spaced 1 to 2 inches apart.
4. Put the seed tray in a bright area in indirect light. Keep the environment around the seeds at 65 to 70 degrees Fahrenheit.
5. Mist the cotton wool daily or whenever it starts to dry out. The seeds need a consistently moist environment to germinate but will rot if the cotton wool gets soggy.
6. Transplant seedlings into 2- to 3-inch pots or cell packs when they form roots and the first leaves. Fill the pots with damp potting soil.
7. Gently separate the cotton wool from the seedlings being careful not to damage the roots. Leave some of the cotton wool growing around the roots. If you try to pull the seedling out of the cotton wool, you might break the new roots.
8. Make a hole in the center of the pot just large enough for the seedling roots. A pencil or your pinky will make an appropriate hole.
9. Place the seedling with any remaining pieces of cotton still attached into the hole so the roots are covered and the stem and leaves are above the soil line. Push the soil around the seedling to secure it in the pot.
10. Keep the seedlings in 65 to 70 F environment during the day in bright light, at least 12 hours per day. At night, bring the temperature down to 55 F (See Reference 1). Water using a gentle mist or spray bottle whenever the top of the soil feels dry.
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