(a) State four aims of crop improvement. [4 marks] (b) Give four conditions necessary for seed germination. [4 marks] (c) State the importance of conducting...

 (a) State four aims of crop improvement. [4 marks]

(b) Give four conditions necessary for seed germination. [4 marks]

(c) State the importance of conducting a germination test. [2 marks]

(d) Discuss briefly three problems associated with the use of poor quality planting materials. [6 marks]