21.
Gibberellins do not cause A
Shortening of genetically tall plants
B
Stimulation of seed germination
C
Promotiion of parthenocarpy
D
Induction of -amylase syntehsis is barley
Answer :
Shortening of genetically tall plants
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
22.
One set of a plant was grown at 12 hrs. day and 12 hours night period cycles and it flowered. While in the other set night phase was interrupted by flash of light and it did not flower. Under which one of the following categories will you place this plant A
Short day
B
Long day
C
Darkness neutral
D
Day neutral
Answer :
Short day
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
23.
Plant hormone asocaited with Climacteric respiration is A
Auxin
B
Cytokinin
C
Ethylene
D
Gibberellin
Answer :
Ethylene
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
24.
Movement of Indian telegraph plant (Desmodium) is A
Movement of variation (Turgor movement)
B
Geotropism
C
Phototropism
D
Movement of cyclosis
Answer :
Movement of variation (Turgor movement)
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
25.
Phototropic and geotropic movements are linked to : A
gibberellins
B
enzymes
C
auxin
D
cytokinins
Answer :
auxin
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
26.
Proteinaceous pigment which control activities concerned with light A
phytochrome
B
chlorophyll
C
anthocyanin
D
carotenoids
Answer :
phytochrome
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
27.
Parthenocarpy is the production of A
Fruits with pollintion
B
Fruits with out fertilization
C
Seeds with fertilization
D
Only seeds and fruits
Answer :
Fruits with out fertilization
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
28.
Mowing grass lawn facilitates better maintenance because A
wounding stimulates regeneration
B
removal of apical dominance and stimulation of intercalary meristem
C
removal of apical dominance
D
removal of apical dominance and promotion of lateral meristem
Answer :
removal of apical dominance and stimulation of intercalary meristem
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
29.
Rhizomes and runner stems are A
Diageotropic
B
Apogeotropic
C
Plageotropic
D
Aerotropic
Answer :
Diageotropic
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
30.
A natural growth regulator is A
Enthylene
B
NAA
C
2, 4-D
D
Benzyladenine
Answer :
Enthylene
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.