問題一覧
1
Capacity of pathogen to cause a disease
pathogenecity
2
Premature falling of leaves
abscission
3
Pure culture must be introduced to a healthy susceptible host
inoculation
4
Pathogen must always be present in the plant diseases occur
association
5
Tiny spots of leaves
flecks
6
Two person invented the compound microscope in 1590
Hans and zaccharias jansen
7
Controlled the downy mildew dease by seed treatment
exconde
8
Overdevelopment result increase in the size of cells
hyperplasia
9
Published the book plant pathology
vanderplank in 1963
10
Lead to a disease development in the plant
pathogenesis
11
Symptoms appear at flowering
smut
12
Causes dark sunken lesions on leaves
anthracnose
13
Englishman drink tea today instead of coffee (hemileia vastatrix)
Coffee rust
14
Refers to a quantitive amount of a disease
virulence
15
He provided irrefutable evidence that microorganism arise from pre-eclampsia entities
Louis pasteur in 1860
16
Cause the Irish famine and death of more than a million people in Ireland (phytophthora infestans)
Potato late blight 1845-46
17
Must be isolated and grown in pure culture
isolation
18
He wrote the first textbook on pathology
Julius khun in 1858
19
Cause the bungalow famine in (hilmenthosporium oryzae)
Brown spot of rice in 1943
20
In 17-19 century classifying deseases were made by
tornefort zallinger fabricious and unger
21
Rotting seedlings
damping-off
22
Plant that is susceptible to a disease
suscept
23
Bordeaux mixture, a highly effective fungicide was discovered by
pierre marie alexis millardet in Oct,1882
24
Drying backwards
Die-back
25
Loss 200m in Laguna (viroid)
Cadang-cadang of coconut 1918
26
Powdery spots om leaves and stem
powdery mildew
27
Father of plant pathology
Heinrich anton de bary in 1853
28
Refers to the plant that is being attacked
host
29
Dean of pilipino plant pathologist
Gerard o ocfemia
30
Flow of plant sap from wounds
bleeding
31
Oozing out of viscid gum
gumming or gummosis
32
Metamorphosis of petlas
phyllody
33
He is the father of botany and recorded deseases of grains
theophrastus 370-286 B.C
34
Swollen masses
galls
35
Necrotic area with cracked border
canker
36
excessive or enlargement or over development of plant
hyperplastic symptoms
37
agent that cause disease, referring to living organisms
pathogen
38
Depends on another living organisms for its food
Parasite
39
Mother of plant pathology
Victoria M Ela
40
Death of young buds
blast
41
He wrote about blights and rust in his historia naturalis
pliny
42
Yellowing by some factors other than light
chlorosis
43
No. Enemy of corn (peronosclerospora philippinensis)
Downy mildew of corn
44
Causes cancer of the liver
Aspergillus ochracious
45
Crowding of the foliage in a rosette
rosetting
46
Clustering of roots
fasciculation
47
Produces aflatoxin
Aspergillus flavus
48
Causal organisms must be re-isolated in pure culture
re-isolation
49
He found bacteria and protozoa
Leeuwenhoek in 1683
50
abnormal bending or curling
curling
51
cause of irritation of a casual agent
plant disease
52
He is the first to see plant cells in cork pith
Robert hooke in 1665
53
An inhibition or failure
hypoplastic symptoms
54
Affected 70,000 ha of rice fields (rice tungro virus)
Rice tungro
55
Large, irregular spots on leaves
blotch
56
Involved death protoplasts
necrotic symptoms
57
Converted to a hard, dry
Mummification
58
Overgrowth of tissue formed
callus