WAEC Agricultural Science Past Questions & Answers - Page 338

1,686.

A major routine operation in cowpea production which normally starts from flowering stage is

A.

Weekly spraying with insecticides

B.

Folial application of liquid fertilizer

C.

Application of herbicides

D.

Routine application of NPK granulated fertilizer

E.

Timely harvesting of pods

Correct answer is A

No explanation has been provided for this answer.

1,687.

Yams stored in a barn should be inspected at least once a week to

A.

Remove rotten tubers

B.

Remove sprouts from yam tubers

C.

Prevent termite attack

D.

Prevent mouldiness in yam

E.

Remove sprouts and rotten tubers

Correct answer is E

No explanation has been provided for this answer.

1,688.

Rice bran is usually obtained from the paddy after

A.

Winnowing and boiling

B.

Threshing and winnowing

C.

Parboiling and threshing

D.

Harvesting and milling

E.

Milling and polishing

Correct answer is E

No explanation has been provided for this answer.

1,689.

Molasses is a major by-product obtained after the processing of

A.

Kenaf

B.

Sugarcane

C.

Cassava

D.

Pawpaw

E.

Guinea corn

Correct answer is B

No explanation has been provided for this answer.

1,690.

When individual crop with desired characteristic mostly favoured by the environment are chosen for breeding this type of breeding is referred to as

A.

Introduction

B.

Hybridization

C.

Line-breeding

D.

Selection

E.

Cross-breeding

Correct answer is D

No explanation has been provided for this answer.