(a) ldentify specimens F, G, H, and I.
(b) How is each specimen propagated?
(c) State two economic importance of each of specimens F, G and l and one economic importance of specimen H to man.
(d) Classify specimens F, G, H and l into annual and perennial crops.
Explanation
(a) ldentification of the Specimens:
- F: Spear grass Imperata Cylindrica
- G: Irish potato Solanum tuberosum
- H: Maize grain or cob Zea mays
- I ; Cowpea Viana Spp
(b) Propagations:
- Specimen F: Spear grass: rhizome
- G. Irish potato, small white tubers, setts
- H: Maize: Seeds / Grains
- I : Cowpeas: Seeds
(c) Econormic Importance:
F -Spear grass.
- regarded as a weed
- its removal increases cost of production.
- reduce quality of crops.
- reduces quantity / yield of crops.
- harbours crop pests and disease.
G - Irish Potato;
- food for man / fvestock
- peels and haulons for livestock feed.
- source of income for man.
H - Maize;
- food for manlpoultry and other animals.
- used in industries
- flour, starch brewing etc.
- source of income to man.
I -Cowpea;
- food for man,
- protein source / livestock feed,
- soil cover,
- improves soil fertilíty,
- source of income to man.
(d) Classification into Annual and perennial crops:
Annual Crops;
- Irish Potato
- Maize
- Cowpea
Perennial Crops;
- Spear grass