WAEC - Agricultural Science (2001 - No. 29)
Which of the following is not an agricultural significance of stems to crops?
modified form serves as food for man
provision of timber
useful as materials for propagation
useful for cross-breeding in crops
Erläuterung
Stems are not typically used for cross-breeding in crops. Cross-breeding is generally done using flowers, seeds, or other reproductive parts. However, stems can be significant in other ways such as serving as food (e.g., tubers), providing timber, and being used for propagation (e.g., cutting).