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Agriculture - 5 (B.Sc. Agriculture)

Description: Agriculture - 5
Number of Questions: 15
Created by:
Tags: Agriculture - 5 Micronutrients and Macronutrients Inflorescence Fruit Crop Improvement Factors Influencing Respiration Plant Diseases
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Which of the following food stuffs is low in protein content per 100 gram of edible portion?

  1. Potato

  2. Cow milk

  3. Honey

  4. Bread


Correct Option: C
Explanation:

Honey is a rich source of carbohydrate.  In 100 grams of honey, only 3 milligrams of protein is obtained. 

The time of sprouting of any cereal depends on

  1. temperature and humidity

  2. temperature and pressure

  3. rainy season

  4. winter season


Correct Option: A
Explanation:

The sprouting time of seeds may vary according to temperature and humidity of the weather.

The fungus causing coffee rust is

  1. autoecious

  2. dioecious

  3. heteroecious

  4. polymorphic

  5. none of these


Correct Option: A
Explanation:

The fungus that causes coffee rust is autoecious.

Vegetables are most rich in

  1. vitamins

  2. carbohydrates

  3. energy

  4. None of these


Correct Option: B

The best source of vitamin C is

  1. mango

  2. apple

  3. amla

  4. milk


Correct Option: C

Why is the preparation of soil an important task in agriculture?

  1. It kills microbes present in soil.

  2. It brings nutrient-rich soil to the top.

  3. It removes weeds present along with crop.

  4. It kills earthworms present in soil.


Correct Option: B

An orange is a rich source of

  1. proteins

  2. carbohydrates

  3. vitamin C

  4. iodine


Correct Option: C
Explanation:

Orange is a rich source of vitamin C.

When green algae are illuminated, motile aerobic bacteria accumulate near them. Which of the following is the correct reason?

  1. Light emitted by algae

  2. Water released by algae

  3. Oxygen released by algae

  4. Carbon dioxide released by algae

  5. Chlorophyll released by algae


Correct Option: C
Explanation:

.

The yellow, red or orange pigments of green plants are called

  1. chlorophyll

  2. leucophyll

  3. xanthophyll

  4. erythrophyll


Correct Option: C

The genetically-modified (GM) brinjal in India has been developed for

  1. enhancing shelf life

  2. enhanicing mineral content

  3. drought resistance

  4. insect resistance


Correct Option: D

Botanically, a mature or ripened ovary is called

  1. seed

  2. fruit

  3. flower

  4. zygote


Correct Option: B
Explanation:

Ans - (2)

Wildfire of tobacco is caused by

  1. Agrobacterium rhizogenes

  2. Erwinia carotovora

  3. Pseudomonas syringae

  4. Ralstonia solanacearum

  5. Rhodococcus fascians


Correct Option: C
Explanation:

Wildfire of tobacco is caused by Pseudomonas syringae, a rod-shaped, gram-negative bacterium with polar flagella. 

Ocimum is an aromatic and perennial herb. The inflorescence present in ocimum is

  1. cyathium

  2. verticellaster

  3. thyrsus

  4. hypanthodium


Correct Option: C
Explanation:

It is a mixed type inflorescence having a number of simple dichasial cymes arranged in a recemose manner on an elevated peduncle. It is found in ocimum.

The process of sowing is putting ________ in the soil.

  1. root

  2. seed

  3. chemical

  4. DDT


Correct Option: B

_________ develops from an inflorescence.

  1. Simple fleshy fruit

  2. Aggregate fruit

  3. Simple dry dehiscent fruit

  4. Composite or multiple fruit


Correct Option: D
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