Review of Literature
Plants ar organisms that, like everything else that is living, argon made up of cells and they are in the Plantae Kingdom (Plants, p. 2893-2894). The earliest know plants that occurred were the ferns, and they appeared near 400 million years ago (Plant, 1996). Plants get their nada from the sun by a process called photosynthesis and take in food and water by their root system. Then it travels up the stem and to the leaves and/or flower (Plants, p. 2894, 2896).
If your plant looks sick it likely has a disease. Plant diseases can be infectious, meaning genetic from plant to plant, or noninfectious. Noninfectious diseases are called dis fellowships and are intimately common among plants. Some disorders are caused by lack of nutrients, besides much or too undersize water, polluted soil, or polluted air. Weather can effect a plants growing too, for example: too much or too little sun (Plants, p. 2904)
Marigolds are popular half-hardy annuals that are enceinte for their bright, wide flowers and bushy mounds of lacy, green leaves. The African or American Marigolds (Tagetes erecta) are lifesize with 18-36 inch long stems. They view large flowers about two to four inches wide that are yellow, orange, or bicolored.
The French Marigolds are much daintier, with small single flowers that are also about two to four inches wide. They come in yellow, red, and orange. There are also Hybrids, that are a score between the two species. The seeds of a Hybrid have a much lower germination rate than the American and French Marigolds. The some that do sprout have tall plants that have to be removed so they will not take from the separates. The Hybrids dont set seed, so their flowers last longer (Proctor, p. 98). Some other species are the...
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