Tag: plant breeding for disease resistance and insect resistance

Questions Related to plant breeding for disease resistance and insect resistance

Cattle feed should contain 

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

  1. roughage

  2. concentrate

  3. both of these

  4. none of these.

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Correct Option: C
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.

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

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

  1. Recessive mutations express immediately

  2. Induction of mutations is easier

  3. Culturing is easier

  4. Dominant mutations express immediately.

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Correct Option: A

The increase in crop yield with green manure is approximately

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

  1. 1-10%

  2. 10-20%

  3. 30-50%

  4. 60-80%

Show answer
Correct Option: C
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%'.