. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. QUESTIONS AND SUGGESTIONS 67 it begins to grow again. And this food is also the principal source of food for mankind. It is for the food in their seeds that men cultivate rice and wheat, corn and oats, barley and rye. So in seeds we have not only the means to create crops of value; we have also the most valuable crop itself. QUESTIONS AND SUGGESTIONS Section 12. 1. State your idea of what a seed is. 2. Of what uses are seeds to plants? 3. Name the kinds of
. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. QUESTIONS AND SUGGESTIONS 67 it begins to grow again. And this food is also the principal source of food for mankind. It is for the food in their seeds that men cultivate rice and wheat, corn and oats, barley and rye. So in seeds we have not only the means to create crops of value; we have also the most valuable crop itself. QUESTIONS AND SUGGESTIONS Section 12. 1. State your idea of what a seed is. 2. Of what uses are seeds to plants? 3. Name the kinds of seeds you can identify when you see them. 4. Name Fig. 23. — Diagram of a sec- seeds which are used for food. 5. Do you tion taken through a grain know any uses of seeds to man except for of corn near one of its broad . , . . _, Tr . .. , surfaces. The oval struc- food and planting ? If so, describe them. ture in the Wr part is a 6. What plants do you know, other than suce through the embryo. those named in the text, which do not produce seed? 7. In what month do most seeds ripen? 8. Where you live when does corn ripen ? When does wheat ripen ? 9. What are some of the crops whose seeds are not allowed to ripen ? 10. Does the size of a seed seem to bear any relation to the size of the plant which produces it? n. Find out what you can about how seeds are stored in order to keep them in good condition. 12. How is seed corn stored? How is it tested before planting? 13. Will young seeds grow as well as seeds which have been kept over winter? Section 13. 1. What are the things which you and a plant must both do in order to keep alive ? 2. Describe a life relationship of plants which is not found among animals. 3. Does grass grow where the shade is dense ? Describe the appearance of grass after it has been covered for a few days. 4. Describe the shape of a plant which is kept indoors with the same side constantly toward the window. 5. What are the principal things which plants seem
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