Tag: economically useful plants and entrepreneurial botany

Questions Related to economically useful plants and entrepreneurial botany

Organic farming completely relies on

  1. Chemical fertilizers

  2. Sustainable techniques

  3. Growth hormones

  4. None of the above


Correct Option: B
Explanation:

Organic farming is the technique which is used for the evolution of the agricultural techniques and increase the production without the use of antibiotics, fertilizers and pesticides. The method completely relies on sustainable techniques like microbial inoculation which doesn't pose a threat to the environment. This system uses the microbial culture to enhance the soil quality and fertility. The activity of the microbes adds nutrients to the soil. These nutrients can be used by the plants for growth and development. The technique involves the use of cattle and other farm animals for farming. There is use of green manure, biofertilizers and biopesticides. 

Thus, the correct answer is option B. 

Consider the following statements (A-D) about organic farming

(A) Utilizes genetically modified crops like Bt cotton.
(B) Uses only naturally produced inputs like compost.
(C) It does not use pesticides and urea.

(D) Produces vegetables rich in vitamins and minerals.

Which of the above statements are correct?

  1. (B) and (C) only

  2. (A) and (B) only

  3. (B), (C), and (D)

  4. (C) and (D) only


Correct Option: A
Explanation:

A- Organic farming is the method of cultivation of crops through use of fertilizers of organic origin such as green manure, compost, bonemeal etc. It uses techniques such as crop rotation and companion plantation. Synthetic fertilizers and pesticides are strictly prohibited. 

Horticulture is related to

  1. Olericulture

  2. Floriculture

  3. Pomology

  4. All of the above


Correct Option: D
Explanation:

Horticulture has been defined as the culture of plants for food, comfort and beauty. It includes plant conservation, landscape restoration, soil management, landscape and garden design, construction, and maintenance, and arboriculture. It also includes Olericulture (science of vegetable growing, dealing with the culture of non-woody (herbaceous) plants for food), Floriculture, or flower farming(discipline of horticulture concerned with the cultivation of flowering and ornamental plants for gardens and for floristry, comprising the floral industry) and Pomology(is a branch of botany that studies and cultivates fruit). Hence, the horticulture is related to olericulture, floriculture and pomology.

So, the correct answer is 'All the above'.

Horticulture deals with management of

  1. Farms

  2. Orchards and gardens

  3. Trees and shrubs

  4. Forests


Correct Option: B
Explanation:

Horticulture is the science or art of cultivating fruits, vegetables, flowers, or ornamental plants. It impacts our lives on a daily basis by providing nutritious fruits and vegetables, offering visual enjoyment, and promoting recreational activities.

So the correct option is 'Orchards and gardens'.

Growing trees and shrubs in small pots is

  1. Bonsai

  2. Culture

  3. Green gardening

  4. Tree culture


Correct Option: A
Explanation:

Bonsai is an art of growing trees and shrubs in small pots or containers. It is originated from Chinese horticulture practice. In this, ornamental dwarf plants are grown in pots. Once potted, it is regularly shaped to limit its growth.

Thus, the correct answer is option A.

Vegetable cultivation comes under

  1. Horticulture

  2. Agriculture

  3. Olericulture

  4. Floriculture


Correct Option: C

Instead of fertilizers, organic farming uses

  1. Compost and manure

  2. Green manuring

  3. Crop rotation and intercropping

  4. All the above


Correct Option: D
Explanation:

To overcome the problems associated with the overuse of chemical fertilizers ,the farmers have now switched to organic farming . It is the process of use of natural methods like bio-fertilizer , manure , vermicompost & crop rotation etc.

So the correct option is ' All of the above ' .

The pesticides used in organic farming are

  1. Organochlorines

  2. Carbamates

  3. Margosa, nicotine and pyrethrum

  4. All the above


Correct Option: C
Explanation:

Margosa, nicotine and pyrethrum are natural pesticides obtained from neem, tobacco plants and chrysanthemum plants respectively.

Carbonates and organochlorides are pesticides that are manufactured using chemicals.
So the correct option is.

Hatchlings grown in nursery ponds form :

  1. Fingerlings

  2. Fries

  3. Adults

  4. Spawns


Correct Option: B

Which one of the following human activities would cause least damage to the ecosystem?

  1. Organic farming

  2. Shifting agriculture

  3. Urban expansion

  4. Cultivation of genetically engineered plants


Correct Option: A