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51.

Mechanical scarification is

A.	The purpose of mechanical scarification is to modify hard	B.	Or impervious seed coats
C.	Both (a) & (b)	D.	None of these

52.

Soaking seeds in water is:

A.	The purpose of soaking seeds in water is to modify hard seed coats remove inhibitors	B.	And soften seeds to reduce the time of germination
C.	Both (a) & (b)	D.	None of these

53.

Cold and hot stratification is:

A.	To activate dormant embryo	B.	To help after ripening of embryo
C.	Moist stratification is done at temperature varying from 0 - 10	D.	All of the above

54.

Acid scarification is:

A.	The purpose of acid scarification is to modify hard	B.	Or impermedable seed coverings
C.	Both (a) & (b)	D.	None of these

55.

The major types of nurseries is:

A.	Bed nursery	B.	Pot nursery
C.	Both (a) & (b)	D.	None of these

56.

Bed nursery having initial systems:

A.	Preparation of the area	B.	Sowing
C.	Weeding, hoeing and irrigation	D.	Transplanting
E.	All of the above

57.

Pot nursery is:

A.	Seeds after stratification can be sown directly in polythene tubes	B.	There are general 18-23 cm long with 5-10 cm diameter when filled with soil.
C.	Both (a) & (b)	D.	None of these

58.

Chir pine nursery is:

A.	To find out the growth response of chirpine seeds in different soil mixtures, effect of fertilizer, and suitable type of containers	B.	The best season for sowing the seed; and to find out optimum water regime for quick germination and growth
C.	Both (a) & (b)	D.	None of these

59.

Eucalypts is:

60.

Hybrid and deltoids poplars is:

A.	Cutting is made from one-year-old plants. Preferably stem cutting of 20-25 cm length and finger thickness are used	B.	Where one-year-old plants are produced for panting out. The root-shoot cutting and two cutting from the proximal end of the stem are made from one year old plants
C.	Both (a) & (b)	D.	None of these