Deck 15: Plant Biology and Agriculture: Part B

Question 1

Silver Oak produces seeds after age of:

A)1 year
B)5 years
C)10 years
D)15 years

Answer 1

10 years

Question 2

Which of the following plants are used for the extraction of scent?

A)Rose
B)Murva
C)Citrus
D)All of above

Answer 2

Citrus

Question 3

The first ever auxin discovered was:

A)IBA
B)IPA
C)IAA
D)None of above

Answer 3

IAA

Question 4

Mowing of grasses in winter is recommended after:

A)20-30 days
B)30-40 days
C)40-50 days
D)Both 'b' and 'c'

Question 5

Major types of greenhouse are

A)Even span
B)Lean to
C)Odd span
D)a & b

Question 6

At the time of transplanting, weight of date palm sucker should be:

A)5-10 kg
B)10-20 kg
C)20-30 kg
D)Less than 5 kg

Question 7

Following plant(s) is/are propagated through seed.

A)Murva
B)Bottle palm
C)None of above
D)All above

Question 8

Citrus seeds can be stored with Charcoal at following temperature in dry conditions.

A)0-3°C
B)3-10°C
C)10-15°C
D)Above 15°C

Question 9

Seed germination percentage of rough lemon is:

A)50-60%
B)60-70%
C)70-80%
D)80-90%

Question 10

Most serious insect/pest(s) of apple is/are:

A)Codling moth
B)Fruit fly
C)All above
D)None of above

Question 11

Postharvest fumigation of citrus used to be done with:

A)Thiobendazole (TBZ)
B)Ethylene Dibromide (EDB)
C)Above both
D)None of above

Question 12

Soil compaction __________ yield of potato.

A)Increases
B)Decreases
C)Does not effect
D)Unknown

Question 13

Cost benefit ratio in potato production should range:

A)1:5
B)1:10
C)10:1
D)Both 'a' and 'b'

Question 14

"Thalsa" is a variety of potato very suitable for the region of:

A)Peshawar
B)Tandojam
C)Mir Pur Khas
D)Sahiwal

Question 15

Yield of carrot is maximum at pH:

A)6.5
B)7.5
C)8.5
D)Below 6.5

Question 16

Temperate varieties of carrot have ________ life cycle.

A)Annual
B)Biennial
C)Perennial
D)Unknown

Question 17

Which of the following vegetable is also called as 'poor man's food'?

A)Carrot
B)Onion
C)Redish
D)Potato

Question 18

Which of the following factor(s) is/are more suitable for good onion production?

A)High temperature
B)Long photoperiod
C)None of above
D)All above

Question 19

Green potato tuber is inedible due to:

A)Carcinogenic
B)Hardness
C)Hollowness
D)None of above

Question 20

CRD is a statistical approach for:

A)Field experiment
B)Laboratory experiment
C)a & b
D)None

Question 21

Soft nose is a disorder of:

A)Date fruit
B)Citrus fruit
C)Mango fruit
D)Apple fruit

Question 22

Guava seed before germination requires:

A)Fungicide treatment
B)Chemical treatment
C)Commercial grade H2SO₄ treatment
D)All of above

Question 23

Fruit splitting in pomegranate and litchi is due mainly to:

A)Water pressure
B)Dry ness of air
C)Nutritional defects
D)All of above

Question 24

Production of vegetable out of their normal season of outdoor production is known as:

A)Vegetable forcing
B)Out of season
C)Crop production
D)Tissue culture

Question 25

Yellow wasp is a major pest of:

A)Grape fruit
B)Peach fruit
C)Citrus fruit
D)Mango fruit

Question 26

The only pest of date fruit at green hard stage is:

A)Nightangale
B)Parrot
C)Sparrow
D)All of above

Question 27

Study which deals with the microscopic structure of tissue is called:

A)Anatomy
B)Histology
C)Taxonomy
D)Ecology

Question 28

Study of plant species in relation to its environmental history is called:

A)Phylogeny
B)Histology
C)Ontogeny
D)None of these

Question 29

Elevation of temperate region from sea level ranges:

A)1000-2000 m
B)2500-3000 m
C)3500-4000 m
D)b & c

Question 30

Banana belongs to type of fruit, in which the edible portion is:

A)Mesocarp
B)Syconus
C)Berry
D)Drupe

Question 31

Almond is a drupe fruit, in which the edible portion is:

A)Pericarp
B)Thalmus
C)Seed
D)Mesocarp

Question 32

Frond length of cultivated date ranges:

A)3-5 m
B)3-4 m
C)2-3 m
D)1-2 m

Question 33

The most important characteristics of tropical region are:

A)Snowfall
B)Frost
C)Winds
D)High temperature

Question 34

Addition of __________ hastens the time of fruit bud differentiation in fruit plants:

A)Nitrites
B)Nitrides
C)Nitrates
D)All of these

Question 35

More harmones are accumulated in plants due to accumulation of _______:

A)Nitrate
B)Starch
C)Protein
D)Vitamins

Question 36

Reproductive phase of fruit plants is improved by the accumulation of _____:

A)Nitrogen
B)Starch
C)Proteins
D)Cellulose

Question 37

Pruning in old fruit trees increases fruit bud formation by increasing ______:

A)Carbohydrates
B)New vegetative growth
C)Hormonal contents
D)Cell sap

Question 38

At a temperature slightly above optimum, carbohydrates are ________:

A)Produced
B)Stored
C)Utilized
D)Increased

Question 39

Apical bud becomes ________ in mango at fruit bud differentiation :

A)Flattened
B)Rounded
C)Dome shaped
D)Elongated

Question 40

The phase of fruit bud formation continues until _________:

A)Anthesis
B)Petal formation
C)Pollination
D)Differentiation

Question 41

The development of flower bud in tuberose is :

A)Basipetal
B)Exipetal
C)Endopetal
D)Acropetal

Question 42

Rate of bud development is ___________ upto winter season :

A)Slow
B)Rapid
C)Medium
D)Constant

Question 43

Dormancy is a function of interaction of growth promoter like GA and growth inhibitor like _________:

A)ABA
B)Cycocell
C)Alar
D)Paclobutrazole

Question 44

Dormancy of seed is a biological mechanisms that provides protection against ______:

A)Seed spoilage
B)Embryo abortion
C)Pre mature germination
D)Dehydration

Question 45

The major metabolic process which takes place in the harvested produce is _______:

A)Ripening
B)Respiration
C)Softening
D)Senescence

Question 46

At fruit bud differentiation in mango, C/N ratio is _______:

A)Low
B)Medium
C)High
D)Very High

Question 47

Annual bearing apples differentiate much greater proportion of their flowers on _______:

A)Spurs
B)Shoots
C)Leaf axils
D)Main stem

Question 48

Self fertility refers to the ability of a variety to produce fruits with viable ___:

A)Pollens
B)Seeds
C)Ovules
D)Ovaries

Question 49

Flowers having stigma below the highest anthers are called _______:

A)Apistigmatic
B)Hypostigmatic
C)Peristigmatic
D)Exostimgatic

Question 50

Failure of a viable pollen to grow down the style of the flower of the same variety is called ___________:

A)Self sterility
B)Self incompatibility
C)Self unfruitfulness
D)Sterility