CCA Exam Part II

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Author:
MRK
ID:
293518
Filename:
CCA Exam Part II
Updated:
2015-01-29 10:57:59
Tags:
weeds herbicide injury stages fertility
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Description:
weeds soil fertility
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    • Barnyardgrass
    • panicle/spike, chickenfoot seed head
    • No ligual no aurile, no hairs
    • summer annual
  1. barnyardgrass seed
    • Crabgrass
    • memberous ligual
    • no aricles
    • mostly annual
    • panicle head
    • seed: 2.4 mm long grass like
    • Fall Panicum
    • fibrious ligual, no aricles
    • annual
    • smooth swollen nodes
    • basal against the ground
    • lance shaped leaf blades
    • panicale
  2. fall panicum seed

  3. liguale = row of short hair
    ariclues = none
    fine hairs on upper side of leaf
    • giant foxtail
    • summer annual
  4. Giant foxtail seed


  5. Slender seedlings
    hairy ligual and sheath
    upper leaf surface is smooth
    little spike
    • Green Foxtail
    • Summer annual
  6. Green foxtail seeds


  7. Spike
    • Yellow foxtail
    • Annual
  8. Yellow foxtail seeds


  9. rhizoms
    membranous ligual
    • Johnsongrass
    • Perenial
  10. Johnsongrass Seed


  11. membranous ligual
    aricles
    rhizoms
    • Quack grass
    • perenial
  12. Quackgrass seed

  13. no aricles
    No rhizohums
    • shatter cane
    • summer annual

  14. short ligual
    • Wooly Cupgrass
    • summer annual
    • Yellow nutsedge seed
    • perennial
    • also repro by tubers
    • field bind weed
    • perennial
  15. Field bind weed seed
    • Burcucumber
    • summer annual
    • Canada thistle seed
    • perennial
    • Common chickweed seed
    • Winter annual
    • Cocklebur
    • summer annual
    • Milk weed
    • perennial
    • Common Ragweed seed
    • Summer Annual
    • Giant ragweed
    • summer annual
  16. Dandelion
    perennial
    • Eastern black nightshade
    • summer annual
    • hemp dogbane
    • perennial
    • henbit
    • winter annual
  17. marestail
    summer annual or biennial broadleaf plant.
    • jimsonweed
    • summer annual
    • Kochia
    • summer annual
    • Lambsquarter
    • Summer annual
    • Morningglories
    • summer annual / perennial
  18. Palmer Ameranth
    Summer annual
    • Poison Hemlock
    • Biennial
  19. Pokeberry / pokeweed
    Annual
    • purple deadnettle
    • annual/biennial
    • smartweed
    • summer annual
    • summer annual
    • velvet leaf
  20. water hemp
    • summer annual
    • looks like pigweed with oblong leaves
  21. Wild carrot
    biennial
  22. wild mustard
    winter annual
  23. Wild onion
    perennial
  24. effects of herbicde group 5, 6, and 7 on corn and beans
    • photosystem II inhibitors
    • necrotic and rolling edges
    • beans will drop leaves
    • systemic
  25. effects of herbicde group 3 and 15 on corn and beans
    • seeding root and shoot inhibitors
    • root= stunting and discoloration, roots are prunned clubbed or calused
    • shoot = heart shaped leaves or buggy whipped
  26. effects of herbicde group 4 on corn and beans
    • synthetic auxins
    • cupping / twisting
    • like 2,4-d
  27. effects of herbicde group 14 and 22 on corn and beans
    • membrane disrupters and photosystem I inhibitors
    • splotchy leaf burn
  28. effects of herbicde group 27 and 28 on corn and beans
    • pigment inhibitors
    • white
    • command/balance
  29. effects of herbicde group 1 on corn and beans
    • grass growning point disintegrates
    • doesn't affect broadleaves
  30. effects of herbicde group 2 and 9 on corn and beans
    • Ammino acid sythesis inhibitor
    • purple soybean veins
    • bottle brush corn roots
    • Corn: node stacking, rippleing and chlorosis
  31. effects of herbicde group 10 on corn and beans
    • Nitrogen metabolism inhibitors
    • necrotic (old leaves), pale green (new leaves), spots where herbicide hit
  32. R1 in Corn
    Silk
  33. R2 in Corn
    blister
  34. R3 in Corn
    Milk
  35. R4 in Corn
    Dough
  36. R5 in Corn
    Dent
  37. R6 in Corn
    Black layer
  38. VC in beans
    unrolled unifoliates
  39. V1 in beans
    first trifoliate
  40. R1 in beans
    • beginning flowering
    • one open flower at any node on the main stem
  41. R2 in beans
    • Full flowering
    • open flower at one of the two¬† uppermost nodes on the main stem with a fully developed trioliolate leaf node
  42. R3 in beans
    • Beginning pod
    • pod is 3/16 inch long on one of four uppermost nodes
  43. R4 in beans
    • Full pod
    • pod is 3/4 inch long on one of four uppermost nodes on the main stem
  44. R5 in beans
    • Beginning seed
    • seed is 3mm long in the pod at one of the four uppermost nodes
  45. R6 in soybeans
    • Full seed
    • pod containing green seed that fills the pod cavity at one of the four uppermost nodes
  46. R7
    • Beginning maturity
    • one normal pod on the main stem that has reached its mature pod color (brown or tan)
  47. R8
    • Full Maturity
    • 95% of pods are tan or brown
    • need 5-10 drying days before harvest at 15% moisture
  48. Feeke's 1
    emergence
  49. Feeke's 2 and 3
    tillering
  50. Feeke's 4 and 5
    Green up
  51. Feeke's 6
    • jointing
    • first node visible at the base of the shoot
  52. Feeke's 10
    • the boot stage
    • when you can see the head develop just below the flag leaf
  53. Feeke's 8
    Flag leaf emergence
  54. Feeke's 10.5.1
    beginning flowering
  55. Feeke's 10.5.3
    flowering ends
  56. Feeke's 11.3
    kernals harden
  57. Feekes 11.4
    maturatiy
  58. Carbon
    CO2
  59. Hydrogen
    H20
  60. Oxygen
    CO2 H20 O2
  61. Nitrogen
    NO3- NH4+
  62. Phosphourus
    H2PO4- HPO42-
  63. Sulfur
    SO42-
  64. Molybdenum
    MoO4-
  65. Boron
    H3BO3 H2BO3-
  66. Potassium
    K+
  67. Calcium
    Ca2+
  68. Magnesium
    Mg2+
  69. Iron
    Fe2+ Fe3+
  70. Manganese
    Mn2+
  71. Copper
    Cu2+
  72. Zinc
    Zn2+
  73. Nicole
    Ni2+

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