Prac Exam

Question 1

GS 0

Answer 1

Germination
05 radicle emerged
09 Emergence

Question 2

GS 1

Answer 2

Leaf development
10 - first leaf through coleptile
11first leaf nfolded

Question 3

Gs 2

Answer 3

TIllering
20 none
21 First tiller

Question 4

GS3

Answer 4

Stem elongation
30 first node visbile
31 first node 1 cm above tillering node
32 2nd node 2cm above node 1

Question 5

GS 4

Answer 5

Booting
41 Early booting - flag leaf sheath extending
45 late boot - gflag leaf sheath swollen
49 awns visible

Question 6

GS 5

Answer 6

Heading

52 20% inflorecense emerged

Question 7

GS 6

Answer 7

ANthesis

65 50% anthers mature

Question 8

GS 7

Answer 8

Fruit development
71 first grains reached half their final size
77 late milk

Question 9

GS 8

Answer 9

Ripening

85 - fingernail impression not held

Question 10

GS 9

Answer 10

Senecence
92 overripe
97 plant dead and colapsing
99 harvested

Question 11

Canola GS0

Answer 11

Germination

09 - cotyedona emerge

Question 12

Canola GS1

Answer 12

Leaf development

11 - first leaf unfolded

Question 13

Canola GS2

Answer 13

Side shoot formation

21 - first side shoot detected

Question 14

Canola GS3

Answer 14

Stem elongation
31 visibly extened internode
33 3 visible extened internode

Question 15

Canola GS5

Answer 15

Inflorecence emerge
50 flower buds present
52 flower buds free, level with goungest leaves
57 individual floer buds visible byt closed

Question 16

Canola GS6

Answer 16

Flowering
60 first flowers open
65 - 50% flowers open

Question 17

Canola GS7

Answer 17

Fruit development

71 - 10% pods readed final size

Question 18

Canola GS 8

Answer 18

ripening

81 - 10% pods ripe, seeds dark and hard

Question 19

Canola GS 9

Answer 19

Senescence

9 plant dead

Question 20

1000 seed wt
Wheat
Canola

Answer 20

34g

4

Question 21

plants/m
wheat
canola

Answer 21

100

40

Question 22

Establishment % and germ %

Wheaty

Answer 22

Germ 90

Establish 80

Question 23

French and schultz

Limitations to equation

Answer 23

Ignors stored water
Assumes no run off, drainage, constant evaportaion
No sub soil constraints
disease, pests
weed competition
low soil fertility

Question 24

Why did things fall below the line

Answer 24

DIff sowing date
weeds
disease
poor nutrition
frost
heat
waterlogging

Question 25

Can the 110mm evaportaion be reduced?

Answer 25

Yes - better managemnet
stubble retention
weed control - prevent loss of summer rains
vigorous crops-= soil coverage

Question 26

F and S equation

Answer 26

y= (p-110) x WUE

Question 27

WUE Wheat and canola

Answer 27

20, 12.5 kg grain/ha/mm

Question 28

SBU

Answer 28

(Width of seed row / row spacing) X100

Question 29

Disk . knife point

Answer 29

25mm

Wide sweep bigger

Question 30

Wheat and canola Stunted growth

Answer 30

N,P, S, Zn

Question 31

N deff

Answer 31

Light green, yellowing to brown to die
Older leaves
Stunted growth

Question 32

P deff

Answer 32

D green, red and purle, yellowing to dying
Older leaves
Stunted growth

Question 33

S Deff

Answer 33

Veins become chlorotic

L green.
Blue/l green
Young leaves
Stunted growth

Question 34

Zn deff

Answer 34

Large necrotic spots
Older leaves
Stunted growth

Question 35

Mg Deff

Answer 35

Mottled, chlorotic spots

Older leaves

Question 36

k deff

Answer 36

older leaves
small mottled spots
Stalks slender
spots between veinds or leaf tip

Question 37

Ca, B Deff

Answer 37

Lower leaves

Terminal bud dies, necrosis of younger leaves

Question 38

Cu

Answer 38

Terminal bud alive but chlorotic

upper leaves

Question 39

S

Answer 39

upper leaves
No necroctic spots
Veins chlorotic

Question 40

Fe

Answer 40

upper leaves
No necroctic spots
Veins green

Question 41

Mn

Answer 41

Lower leaves
Chlorosis but not wilted
veins remain green and small necrotic spots