JAMB Agricultural Science Past Questions & Answers - Page 37

181.

__________ is a special place prepared for raising seedlings which are later taken to the field for proper planting.

A.

Nursery

B.

Seed space

C.

Primary

D.

Secondary

Correct answer is A

Nursery is a special place prepared for raising seedlings which are later taken to the field for proper planting (transplanting).
Seedlings are grown in nursery beds, seed trays or boxes, basket or polythene bags may be used as boxes. E.g. of such crops are cocoa, kola, tomatoes, citrus etc.

 

182.

__________ is the distance of the sown seed in the soil from the soil surface.

A.

Planting height

B.

Planting depth

C.

Planting width

D.

Plant deep

Correct answer is B

Planting depth is the distance of the sown seed in the soil from the soil surface. The correct planting depth is one that places the seed where it can imbibe water.

183.

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

184.

_______ 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.

185.

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.