Agronomy Semester Vocabulary Review

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Across
  1. 3. The stage of development when deterioration occurs, leading to the death of an organism or organ.
  2. 5. One of two components of the vascular system whose primary function is to transport water and soil nutrients.
  3. 7. With atmospheric oxygen.
  4. 9. Refers to plants that can survive mild spring frosts and may be planted early in the spring or in the fall.(2 words, no spaces)
  5. 13. One of two components of the vascular system in plants whose primary function is transport of manufactured products.
  6. 14. Within the taxonomic system of classifications, how plants are ordered concerning their characteristics.
  7. 15. A flowering plant with an embryo that bears two cotyledons (seed leaves).Typically have broad, stalked leaves, and netlike veins.
  8. 17. A flower that has all four basic floral organs: sepals, petals, stamens, and carpels. (2 words, no spaces)
  9. 19. Refers to plants that are usually killed by frosts and require much warmer temperatures to grow properly. They are planted later in the spring. (2 words, no spaces)
  10. 21. When a shoot or scion is removed from the desired plant and placed on another plant (the stock).
  11. 23. A plant or plant part that lives for more than two years.
  12. 25. Refers to a daily temperature range.
  13. 26. Plants that require a day longer than its critical day length in order to flower; also called short-night plants. (2 words, no spaces)
  14. 27. Major divisions for living things: the plant & the animal.
  15. 28. Response of the plant to the length of daylight.
  16. 32. Vegetative method of propagating new plants by producing adventitious roots before the new plant is cut from the parent.
  17. 34. Part of light that is not absorbed but reflected, such as a red object reflects red light, a green object reflects green. The reflected portion of the spectrum is the color of an object.
  18. 35. Physiological and morphological (structural) changes that occur in cells, tissues, or organs during development and maturation.
  19. 36. Transformation of any form of radiant energy as it passes through a material substance.
  20. 38. Genetic information (DNA) contained in nucleus
  21. 40. Growth which takes place in young, herbaceous organs, resulting in an increase in length of shoots & roots. (2 words, no spaces)
  22. 43. Growing point is above the soil surface immediately on emergence. (2 words, no spaces)
  23. 44. Type of grafting that consists of inserting a single bud into a stock.
  24. 46. A plant group different in the wild from the general species. It is often used for varieties named from the general species.
  25. 47. Temperature needed for plants to germinate. (2 words, no spaces)
  26. 48. A plant or stem onto which a graft is made; especially a plant grown specifically to provide the root part of grafted plants.
  27. 49. Plants requiring a day shorter than its critical day length or a night longer than its critical dark period in order to flower; also called long-night plants. (2 words, no spaces)
  28. 50. Plant reproduction used to ensure that new plants are identical to the parents.(3 words, no spaces)
Down
  1. 1. Decomposition of organic substances, especially carbohydrates, under anaerobic conditions.
  2. 2. A flowering plant with an embryo that bears a single cotyledon (seed leaf). Typically have elongated stalkless leaves with parallel veins.
  3. 3. Reproduction in plants requiring that flowers form, that pollination & fertilization occur, that seeds develop, and that the seeds grow into new plants. (3 words, no spaces)
  4. 4. Cell with DNA not enclosed in the nucleus
  5. 6. Process of development.
  6. 8. A portion of a plant is removed and made to form roots.
  7. 10. Piece of last year's growth with three or four buds. Part inserted on the understock.
  8. 11. A cultivated variety; an entity of commercial importance that is give a name to distinguish it from other genetically different plants.
  9. 12. Organizational system for descriptive classification of plants.
  10. 13. Act of placing pollen from the male reproductive organ onto the female reproductive organ of a flower.
  11. 16. An organizational system for describing related plants or animals.
  12. 18. Environmental absence of deficiency of molecular oxygen. Conditions frequently encountered in flooded soils or following irrigation.
  13. 20. Results in an increased girth as layers of woody tissue are laid down. Not typically exhibited in monocots and herbaceous dicots (2 words, no spaces)
  14. 22. Offspring of crosses between parents with different traits
  15. 24. Conducting tissues of a plant composed of xylem & phloem. (2 words, no spaces)
  16. 29. Combining with oxygen to release energy.
  17. 30. The largest group of similar individuals that actually or potentially can successfully interbreed with one another but not with other such groups.
  18. 31. Growing point remains below the soil surface for a time after emergence. (2 words, no spaces)
  19. 33. Complete their life cycle in less than one year and must be planted again.
  20. 37. Flowers that lack one or more of the four regular parts of a complete flower. (2 words, no spaces)
  21. 39. A plant that requires two growing seasons to complete its life cycle.
  22. 41. Process in a plant of making sugars for growth and respiration from the raw products of water, carbon dioxide, and sunlight, releasing oxygen.
  23. 42. A unit of scientific classification that includes one or several closely related species. The scientific name for each organism includes designations for genus & species.
  24. 45. A plant that may flower under any day length. (2 words, no spaces)