JAMB Agricultural Science Past Questions & Answers - Page 57

281.

The young plants that emerge during germination are called

A.

Emergent plants

B.

Surface plants

C.

Seedlings

D.

Leaves

Correct answer is C

Seedling is a young plants grown from seed, rather than from cutting

282.

_______ refers to the appearance of a seedling above soil level.

A.

Emergence

B.

Epicot

C.

Imergence

D.

Emergency

Correct answer is A

Emergence: this refers to the appearance of a seedling above soil level.

283.

The process whereby the embryo of a seed resumes growth under favourable conditions is called

A.

Plant growth

B.

Germination

C.

Outgrowth

D.

Ingrowth

Correct answer is B

Germination: the process whereby the embryo of a seed resumes growth under favourable conditions. Germination is the sprouting of seed.

284.

_________ is the sowing of seed by drilling with stick or knife, followed by dropping seeds and covering them

A.

Broadcasting

B.

Dibbling

C.

Dribbling

D.

Drilling

Correct answer is D

Drilling: sowing a seed by drilling with stick or knife, followed by dropping seeds and covering them

 

285.

The following conditions are necessary for germination except

A.

Adequate moisture

B.

Viable seed

C.

Zero temperature

D.

Optimum temperature

Correct answer is C

Conditions necessary for germination of seeds are adequate moisture, viable seed (living embryo), optimum temperature, adequate air and zero temperature is not included.