COMMUNITY DEVELOPMENT AND TRAINING CENTRE

MINISTRY OF EDUCATION

CERTIFICATE IN AGRICULTURE - YEAR 1

MID - SEMESTER EXAMINATION

SEMESTER 2 - 2004

AGC 007A : CROP PRODUCTION.

Time allowed : 2 hrs 30 minutes.

Student ID Number : ______

Instructions :

  1. There are four (4 ) sections in this paper
  1. Answer all questions in sections A and B
  1. Answer any six (6) questions in section C
  1. Answer any four (4) questions in section D

N. B.

  1. Answer sections A and B in the spaces provided in this paper.
  1. Answer sections C and D in the lined papers given by the supervisor.
  1. Make sure to write your ID number on the space provided above and that in the answer sheets.
  1. Write neatly and clearly.

Section A : True and False (12 marks)

Write True or False at the end of each statement then give a reason why you think the statement is true or false.

1. Irish Potato belong to the family Leguminosae ( )

Reason:…………

2. Lycopersicum esculentum is the scientific name for Kava plant. ( )

Reason:………….

3. In Exploitative Agriculture, fallowing period is long enough to sustain soil fertility

level for the next crop. ( )

Reason……………

  1. One features of Traditional Mixed Cropping System is the need to produce more food

and cash crop in order to meet demand of population increase. ( )

Reason………….

5. Smooth Caynee can be propagated only from suckers. ( )

Reason………

6. A crop is said to be seasonal if it can be grown all year round. ( )

Reason……….

  1. Banana weevil borer cause fruit damage to banana which make it unacceptable for the export market. ( )

Reason……….

  1. The two commonly grown cultivar of papaya grown for the New Zealand market are Caynee and Spanish. ( )

Reason………..

  1. Semi Subsistence Farming is the most common farming system currently practiced in

Tonga. ( )

Reason……….

  1. In pineapple the planting materials that grow out of the fruit stalk is known as ratoon

sucker. ( )

Reason………..

11.In crop establishment, excess moisture in the soil helps to speed up the germination

process of the seed and give good rooting system. ( )

Reason…………

  1. Onion crop can grow all year round and require at least 16 hrs of day length in

order to form bulb. ( )

Reason…………

Section B : Fill in the blank spaces (24 marks )

Read the following sentences/statements carefully then fill in the blank spaces using the most suitable words.

  1. Plant species that have male and female organ on separate plant is known as

______

  1. Eggplant and tomatoes belong to the family ______
  2. Squash, Watermelon, Cucumber and Zucchini belong to the family

______and the scientific name for watermelon is ______

  1. With regards to the growth habit of a tomato, one type of tomato can be easily identified when the terminal bud is always vegetative with stem growing indefinitely, and therefore trellis or stake is required. This type is known as

______

  1. The most important pests of coconut in the PacificIslands including Tonga is ______.

6.The most cultivated species of vanilla in Tonga is ______

7The vanilla beans contain the flavour known as ______which is used mainly for production of medicine, perfume and flavouring for the ice-cream industry .

8. The two most important diseases of squash in Tonga are______

and ______

  1. The active compound in Kava which have an effect on kava drinkers is known as ______
  2. The banana cultivar which make up the majority of the world trade including Tonga is known as ______
  3. The collapse of banana export in Tonga was due to leaf fungus disease known as ______
  4. The two (2) commonly grown cultivars of pineapple in Tonga are ______and ______
  5. Vanilla was not cultivated until the discovery of a method of manual pollination by ______in ______
  6. The two (2) cultivars of papaya required by the New Zealand export market are______and ______.
  7. The most important disease of Kava in Tonga is ______which cause stem rot from the apex or from the node to the stump.
  8. The insect pest that cause fruit damage to banana bunch that make it unacceptable for export is ______.
  9. In pineapple the planting materials that grow up at the top of the fruit is called ______.
  10. Hot water treatment is recommended to treat banana planting materials for 20 minutes in water at a temperature of between ______and ______to kills nematodes in the outer layers of planting material.

Section C : Short Answer Question ( 24 marks )

Answer any six (6) questions in this section. Each question is worth 4 marks.

  1. What do you understand about “ Pollination” and its importance in relation to Vanilla production in Tonga?
  2. Why is it important to carry out selection and grading of squash when harvesting for the export market?
  3. Discuss four (4) advantages of using nurseries for Kava seedling production.
  4. Discuss why desuckering is very important with regard to banana production?
  5. Define what do you understand about the term “Agroforestry”.
  6. Discuss three (3) major interlinked aspects that have to be considered with regard to Sustainable Farming System.
  7. With regards to improving Sustainable Farming System, discuss four (4) reasons why Mixed Cropping is being adopted ?.
  8. Give a brief description of the climate of Tonga.
  9. Give a brief description on what do you understand about mono-cropping system.

Section D: Essay Question ( 40 marks )

Answer any four (4) questions from this section.

Each question is worth ten (10)marks.

  1. Briefly explain why good stocks of planting materials are a basic need to profitable crop production.
  1. Briefly explain the changes occurred to Tonga Crop Cultural Practices as a result of increased population and the land become scarce for agricultural production.
  1. Briefly explain what you understand about “Organic Farming” and give four (4) reasons why we should encourage the practice of organic farming in Tonga.
  1. Briefly explain what you understand about “Looping “and why it is important in relation to Vanilla production.
  1. Briefly explain with examples some of the factors that influence Agricultural / Crop production in Tonga.
  1. Describe in details any one of the following topics (i.e. from planting to harvesting ).

-Squash production in Tonga

-Papaya production in Tonga

-Vanilla production in Tonga

-Kava production in Tonga.

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