Tag: plant breeding

Quizzes (8) Questions (81)

Questions Related to plant breeding

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

The colour of high yielding Mexican wheats were not liked by the Indians. It was originally red grained. Their cultivation was adopted in India on the large, scale only when exposure to gamma radiations converted them to amber grained. Which of following methods of plant-breeding has been put into practice in the given case? 

  1. Polyploid breeding

  2. Interspecific hybridisation

  3. Issue culture

  4. Mutation breeding
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mutation breeding is the way toward presenting seeds to synthetic concoctions or radiation so as to create freaks with attractive qualities to be reproduced with different cultivars. 

So, the correct answer is 'Mutation breeding'.

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Which of the following is an example of mutation breeding?

  1. Pusa Swarnim, resistant to white rust

  2. Mung bean, resistant to yellow mosaic virus

  3. Pusa Sadabahar, resistant to chilli mosaic virus

  4. Pusa Gaurav, resistant to aphids
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The process of mutation breeding involves inducing mutations artificially through use of chemicals or radiations and selecting plants that have the desirable character as a source in breeding.

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Pullorum disease of chickens is caused by 

  1. Aspergillus fungus

  2. Paramyxo virus

  3. Salmonella bacterium

  4. Candida fungus.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pullorum disease is caused by one of the two poultry-adapted strains of Salmonella bacteria. It causes mortality in birds up to 3 weeks of age. Occasionally, it can cause loss in adult birds but also infects parrots, sparrows and peafowl

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Which among the following is Eco-frinedly method to protect crops?

  1. Biological control

  2. Chemical control

  3. Mechanical method

  4. Electronical control
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In biological control method, birds, insects and other living organisms are deliberately let out in fields to selectively kill pests. This becomes an easy method for protecting crops against selective pests. This is an environment friendly method to control the pests.

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Which of the following statements is not correct about fertilizer?

  1. It enriches the soil with organic material

  2. It provides nutrients to the soil immediately in concentrated from

  3. It increases the crop production several times

  4. It is available in all seasons
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Manure enriches the soil with organic material (humus). A fertiliser does not provide any Humus to soil.

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Cattle feed should contain 

  1. roughage

  2. concentrate

  3. both of these

  4. none of these.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cattle diet varies from one period to another period. Generally the diet of cattle includes 15-10% of roughage and rest of them includes concentrate and other materials.

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Haploid plants are preferred over diploids for mutation study because in haploids

  1. Recessive mutations express immediately

  2. Induction of mutations is easier

  3. Culturing is easier

  4. Dominant mutations express immediately.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Haploid plants contain only one set of chromosomes. Because there is no second allele to mask the effect of a recessive mutation, any mutation that occurs will be expressed phenotypically immediately.

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

The increase in crop yield with green manure is approximately

  1. 1-10%

  2. 10-20%

  3. 30-50%

  4. 60-80%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The amount of humus found in the soil also increases with higher rates of decomposition, which is beneficial for the growth of the crop succeeding the green manure crop used, and its management, its approach that of soil organic matter and microbial biomass. This resulted in the increase of the yield of the crops to about 25%- 35%.

So, the correct option is '30-50%'.

Multiple choice economics plant breeding green revolution in india crop revolutions green revolution

The primary objective of green revolution in India was

  1. Modernisation of agriculture through science and technology

  2. Provision of bettetseeds it cheaper rater

  3. Equitable distribution of agricultural products

  4. Abolition of bonded labour
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The introduction of high-yielding varieties of seeds and the increased use of chemical fertilizers and irrigation are known collectively as the Green Revolution, which provided the increase in production needed to make India self-sufficient in food grains, thus improving agriculture in India. So, the correct option is A. ( Modernisation of agriculture through science and technology )

Multiple choice economics plant breeding green revolution in india crop revolutions green revolution

Which is the technology included in Green revolution?

  1. Synthetic fertilizer

  2. Pesticides

  3. Irrigation

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Green Revolution involved a package of agricultural technologies to boost yields. This included the use of synthetic fertilizers, chemical pesticides, and improved irrigation systems alongside high-yielding variety seeds.