Pl Sc 355

  1. Goddess of Corn
  2. Rivers that surround the fertile crescent? (double check this)
    Gihan, Pisson, Euphradies
  3. Evidence of agriculture in the fertile crescent?
    • progeniters
    • flint sickle-blades, pounding stones
    • coprolites¬†
    • teeth that show milling
    • dated remains of various crops
  4. 7 founding species of the Mediterranean diet (scientifically)
    einkorn wheat, emmer wheat, barley, pea, lentil, flax
  5. Oats and rye developed as ________
    Weeds in wheat and barley crops??
  6. Precursor of maize?
    Teosinte (still grown in mexico)
  7. Harlan - Centres and Noncentres
    • Centres: Central America, Fertile Crescent, Southwest China
    • Noncentres (places of diversification): Coasts of South America, Central Africa, around Bali/Philippines/Islands
  8. Chromosome
    highly organized bodies carrying genes in the nucleus of a cell
  9. Genome
    one set of chromosomes
  10. Polyploid
    plants with extra sets of chromosomes, sometimes makes them bigger
  11. level of ploidy
    greatly increase the amount of genetic variability
  12. law of homologous series
    variation found in one plant will also be found in plants of other species and gena
  13. Peduncle
    The part of the stem right underneath the head, holds up the panicle
  14. Hexaploid oats: Naked oat
    Avena nuda
  15. Hexaploid oats: Wild red oat
    Avena sterilis
  16. Hexaploid oats: Common wild oat
    Avena fatua
  17. Hexaploid oats: Common white oat
    Avena sativa
  18. Hexaploid oats: Cultivated red oat
    Avena byzantina
  19. Epigeal Germination
    Food reserves pushed above the soil surface (eg. bean, canola)
  20. Hypogeal Germination
    Food reserves remain below the soil surface (eg. cereals, peas)
  21. Seminal roots
    From the seed, first roots out of the radicle
  22. Adventitious roots
    Form from the seminal
  23. Coleoptile
    First structure to reach the surface
  24. Culm
    the hollow stem of a grass or cereal plant
  25. Cleistogamy
    • Flowering occurs before emergence
    • act of pollination in the boot (obligate self-pollinator)
    • eg. barley
  26. Protandry
    • "maturing the anthers before the stigma"
    • male parts develop before female parts
    • ensures quick pollination
    • eg. rye, corn
  27. Open flowering
    • occurs shortly after head emerges
    • eg. wheat
  28. Closed flowering
    • occurs prior to head emergence
    • eg. spring barley
  29. Flowering triggers
    Vernalization, light, temperature accumulation
  30. Anthesis
    • developmental stage in flowering
    • transition between heading and grain fill
  31. Three phases of grain fill
    • lag phase
    • constant rate phase
    • maximum weight phase
Card Set
Pl Sc 355
crop science