Briefly explain the concept of mutation breeding and its application in crop improvement.

Boresha ili kuona majibu ya mfano.

State five benefits of progeny testing in crop breeding.

Boresha ili kuona majibu ya mfano.

Explain the following as used in weed science: (a) Crop rotation (b) Mulching (c) Notorious weed (d) Selective herbicide

Boresha ili kuona majibu ya mfano.

Briefly explain five environmental factors that affect the effectiveness of herbicides.

Boresha ili kuona majibu ya mfano.

Describe five symptoms of a viral infection in a plant, and explain two ways a viral infection can spread.

Boresha ili kuona majibu ya mfano.

Differentiate between carrying capacity and stocking density.

Boresha ili kuona majibu ya mfano.

Briefly explain the role of the following nutrients in an animal's diet: (a) Vitamin A (b) Calcium (c) Phosphorus (d) Protein

Boresha ili kuona majibu ya mfano.

Discuss three common diseases of poultry, stating their causative agents and symptoms.

Boresha ili kuona majibu ya mfano.

Explain the importance of a good water supply for livestock production and state three factors that affect the water intake of an animal.

Boresha ili kuona majibu ya mfano.

State five advantages and five disadvantages of using artificial insemination in livestock breeding.

Boresha ili kuona majibu ya mfano.