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A seedling is a young plant sporophyte developing out of a plant embryo from a seed. Seedling development starts with germination of the seed. A typical young seedling consists of three main parts: the radicle (embryonic root), the hypocotyl (embryonic shoot), and the cotyledons (seed leaves). The two classes of flowering plants (angiosperms) are distinguished by their numbers of seed leaves: monocotyledons (monocots) have one blade-shaped cotyledon, whereas dicotyledons (dicots) possess two round cotyledons. Gymnospermsare more varied. For example, pine seedlings have up to eight cotyledons. The seedlings of some flowering plants have no cotyledons at all. These are said to be acotyledons. ( Wikipedia )
What else can I help you with?
What destroys greenhouse gases?
greenhouse gases are not destroyed but can be converted or sequestered. For example as algae or trees grow they use carbon to grow locking it into its leaves, wood and structures. When they die this is often sequestered into the soil.
Why does the new plant need to grow leaves as quickly as possible?
Because plants use photosynthesis to make energy and to grow. They can't do this without leaves there for with leaves they will grow a lot faster.
Is a portable greenhouse a way for an apartment dweller to grow their own food?
A portable greenhouse can help grow some food. However, it cannot grow all of the food a person needs to live. Window boxes and grow lamps without a formal green house building can also be used.
Why is the greenhouse essential for life on earth?
The greenhouse effect is essential for life on earth because organisms must be kept at a warm enough temperature to grow. Without the greenhouse effect organisms wouldn't be warm enough.
How many leaves on a petunia?
Petunia leaves are sessile which means they grow without a leaf stem attached to the main stem. The leaves are opposite.
Why the name greenhouse?
Almost everything you grow in a greenhouse is 'green'.
How long does it take for small sunflowers to grow in a greenhouse?
Sunflowers may not grow in a greenhouse because it requires constant sunlight and hence it may not grow
How important are hydroponic grow lights in indoor and outdoor hydroponics gardening?
It is technically impossible to grow hydroponicly without grow lights.
How important is watering grass after seeding for successful growth and establishment?
Watering grass after seeding is crucial for successful growth and establishment. Adequate moisture is necessary for the seeds to germinate and the roots to develop. Without proper watering, the grass may not grow properly or may die off, leading to a failed establishment.
Do the daisy's reseed themselves?
Yes, daisies are self-seeding plants. After they bloom and produce seeds, the seeds can fall to the ground and grow into new daisy plants without any additional assistance.
Do plants grow better in greenhouse or out of it?
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What birthday gifts are great?
A real fun and educational gift is the TickleMe Plant Greenhouse. In it you can grow a real house plant that moves and closes its leaves when you Tickle it! It even flowers!
