waecE-LEARNING
Agricultural Science Paper 1, May/June 2013  
Questions:   1 2 3 4   Main
General Comments
Weakness/Remedies
Strength













Question 3

  1.    Identify specimens N,O and P by their common

and botanical names.                                                             [6 marks ]

  1.    State how each of specimens N and O is propagated.          [2 marks ]
  2.    Give four characteristics of specimen O.                               [4 marks ]
  3.    State three uses of specimen N.                                            [3 marks ]
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OBSERVATION
 

This question was poorly attempted by the candidates.  In 3(a-c) majority of the candidates could not correctly identify specimens N(Elephant grass),O(Centrosema) and P (Tropical kudzu) by their common and botanical names. They could neither state how each of specimens N(Elephant grass) and O(Centrosema) is propagated nor give the characteristics of specimen O(Centrosema).However, in 3(d), most of them were able to state the uses of specimen N(Elephant grass).

The expected answers include:
3(a)Identification of specimens N, O and P by their common and botanicalnames.


Specimen

Common Name

Botanical Name

N

Elephant grass

Pennisetumpurpureum

O

Centro/Centrosema

Centrosemapubescens

P

Tropical kudzu

Puerariaphaseoloides

                 
(b)How specimens NandO are propagated


Specimen

Method of Propagation

N

Stolon

O

Seed

 (c)Characteristics of specimen O(Centro)
-      Vigorous and aggressive growing legume
-      Creeping and twining plant
-      Has trifoliate leaves attached to the stem by pulvinus
-      Leafy, perennial and shade tolerant
-      Drought resistant
-      Highlynodulated/contains bacteria in the nodules
-      Highly palatable and very nutritious

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