1. Biology 215 Plants for Pleasure & Profit

2. Why horticulture? Economical Value –Enhanced property value –Reduced costs –Can provide a career, livingcareer Exercise

3. Why horticulture? Emotional value

4. Why horticulture? Provide animal habitat

5. Horticulture is a business Park Seeds Jackson & Perkins Lancaster Farms Encore azaleas Witherspoon Roses Plant Delights

7. Horticulture is a science NCSU Horticulture –Horticulture information leafletsHorticulture information leaflets Journals –Journal of the American Society of Horticultural ScienceJournal of the American Society of Horticultural Science –Journal of Horticultural Science & BiotechnologyJournal of Horticultural Science & Biotechnology

8. Plant Classification Botanical Horticultural

9. Scientific & binomial nomenclature Brassica oleracea cv. Green Comet Lycopersicon esculentum cv. Better Boy Hibiscus syriacus ‘Diana’

11. Phlox P. paniculataP. subulata

12. Growth cycles

13. Annuals

14. Growth cycles Biennials

15. Growth cycles Perennials

16. Growth cycles Monocarps

17. Growth habit classification procumbenterect climbing Spreading Arching Vertical

18. Ornamental plant classifications Herbaceous vs. woody Flowering vs. foliage Hardiness zones

19. Herbaceous plants Annuals, biennials, perennials

20. Woody plants Vines Shrubs Trees

21. Shrubs

22. Trees

23. Flowering vs. foliage plants

24. Hardiness classification

25. Plant anatomy

27. DicotsMonocots

29. storage roots

30. Mycorrhizae fungal association (mutualistic) with roots

32. Stems Support Conduction Growth Stem functions

34. Leaf Functions? Photosynthesis Conduction Protection Leaves

35. Leaf characteristics

36. Flowers Organs for reproduction

37. Flower anatomy

38. Perfect vs. imperfect flowers Perfect – having both male and female parts Imperfect – lacking male or female parts

39. Imperfect flowers Monoecious species –Staminate and pistillate flowers on the same plant –Oaks, maples, pines, corn, melons, figs, pecans (dichogamous)

40. Imperfect flowers Dioecious species –Staminate and pistillate flowers on separate plants –Gingko, kiwi, persimmon, cannabis

41. Flower development The ABC model of flower development –A,B,C = differententially expressed MADS box genes (transcription factors)

42. Flowers may lack specific flower parts due to mutations in A, B, or C genes

43. Flowers are contained on an inflorescence

44. Determinate vs. indeterminate inflorescences Determinate – stem growth ends with a flower(s) Indeterminate – flowers produces along stem (at nodes), stem tip continues to grow

45. Timing of flowering How does a plant “know” when to flower? Light (intensity and/or daylength) Temperature Hormones

46. Flower pollination and fertilization

47. Self-incompatibility

48. Fruit anatomy