Deck 17: Plant Propagation, Pollination, and Horticultural Practices

Question 1

Papaya is still being commercially propagated from

A)Cutting
B)Suckers
C)Seeds
D)Grafting

Answer 1

Seeds

Question 2

For good pollination in papaya orchard it is necessary that male plants should be

A)5-10%
B)40-45%
C)50-55%
D)70-75%

Answer 2

5-10%

Question 3

Silver Oak belongs to family:

A)Rosaceae
B)Palmae
C)Oleaceae
D)Proteaceae

Answer 3

Proteaceae

Question 4

Pollination in tomatoes under tunnel production is carried out by:

A)Honey bees
B)Bumble bees
C)House flies
D)Vibration

Question 5

Dwarfing rootstock for apple in heavy soils is:

A)M-7
B)M-9
C)M-11
D)Crab apple

Question 6

Rate of ethylene production in citrus is comparatively_______ than in mango.

A)Higher
B)Lower
C)Equal
D)Unknown

Question 7

Lemons are usually degreened at:

A)6°C
B)16°C
C)26°C
D)30°C

Question 8

Postharvest fungicidal treatment of mango fruit is done with:

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

Question 9

__________ variety of apple is reported to perform well at lower altitudes.

A)Enna
B)Amri
C)Diana
D)Golden Delicious

Question 10

Dhaki variety of date palm was originated in:

A)Sindh
B)NWFP
C)Balochistan
D)Punjab

Question 11

Which of the following vegetable crop is a relative of cotton:

A)Onion
B)Okra
C)Mustard
D)Brinjal

Question 12

In pineapple sweet orange, fruit drop in month of June is upto:

A)66%
B)76%
C)86%
D)96%

Question 13

Hodgson divided genus citrus into:

A)16 species
B)26 species
C)36 species
D)More than 36 species

Question 14

In Pakistan, yield of potato range between :

A)10-15 ton
B)15-20 ton
C)20-25 ton
D)25-30 ton

Question 15

Motia (ornamental) belongs to family:

A)Oleacecae
B)Moraceae
C)Rosaceae
D)Nyctaginaceae

Question 16

Rubber plant (ornamental) belongs to family:

A)Oleacecae
B)Moraceae
C)Rosaceae
D)Nyctaginaceae

Question 17

Bougainvillea (ornamental) belongs to family:

A)Oleacecae
B)Moraceae
C)Rosaceae
D)Nyctaginaceae

Question 18

Germination percentage in sour orange rootstock is:

A)50-60%
B)61-70%
C)71-80%
D)81-90%

Question 19

In Kinnow mandarin, fruit drop in month of June is upto:

A)70%
B)75%
C)80%
D)85%

Question 20

Following species of citrus can be propagated through cutting.

A)Sweet orange
B)Sweet lime
C)Kaghzi lime
D)Non of above

Question 21

Following species of citrus can be propagated through layering.

A)Sweet orange
B)Sweet lime
C)Kaghzi lime
D)None of above

Question 22

In Punjab, most of the fresh vegetable production is carried out:

A)Near cities
B)Near rivers
C)Near canals
D)All of above

Question 23

Which of the following crop has high sulphur contents:

A)Garlic
B)Onion
C)Radish
D)None

Question 24

During propagation through cuttings, which hormone(s) is/are used for root promotion?

A)ABA
B)Seradix
C)NAA
D)All above

Question 25

Rubber plant can be propagated through:

A)Aerial layering
B)Cutting
C)All above
D)None of above