07/04/2023

I.Collection of gemplasm

II.___A____

III. cross breeding or hybridization

IV. ____B_____

V. Testing,release & commercialization of the new cultivar

Choose the option containg correct missing steps A & B

• A-selection of parents

  B-testing of superior recombinants

• A- evaluation of parents

  B-selection of parents

• A-testing of recombinants

  B-selection of superior recombinants

• A- Evaluation & selection of parents

  B-selection & testing of superior recombinants

New variety of Moong bean was made resistant to which disease through mutation?

I) powdery mildew

II) yellow mosaic virus.

III) White rust.

• I & II

• I & III

• II & III

• I,II & III

Black rot of crucifers is ____A____ disease

Red rot of sugarcane is ___B____ disease

• A- fungal

  B- bacterial

• A- bacterial

  B- viral

• A- bacterial

  B- fungal

• A- fungal

  B- bacterial

Which of the following is a correct match between crop> variety > resistance to diseases?

• Wheat>

  himgiri>

  white rust

• Brassica>

  Pusa Sadabahar>

  Black Rot

• Cowpea>

  Pusa Komal>

  bacterial blight

• Chilli> Pusa Swarnim>Chilli mosaic virus

• A-4,5,6

  B-7,8,2

  C-3

• A-1,2,3

  B-4,5,6

  C-7,8

• A-5,6

  B-7,4,8

  C-1,2,3

• A-7,8

  B-4,5,6

  C-1,2,3

• A-3

  B-4

  C-1

  D-2

• A-1

  B-3

  C-2

  D-4

• A-4

  B-3

  C-1

  D-2

• A-2

  B-4

  C-1

  D-3

The IARI, New Delhi has released several fortified vegetable crops that are rich in in Vitamins & minerals. Identify the option with correct nutrient & plants.

I) Vitamin A enriched carots,spinach,pumpkin

II) Vit C enriched- bitter gourd, bathua,mustard & tomato

III) Iron & calcium enriched spinach & bathua

• I & II

• II & III

• I,II & III

• I & III

Micropropagation is a technique for the production of

• genetically identical plants

• haploid plant

• somatic hybrids

• both a & B

Assertion- Virus free plants can be produced from virus infected pants by means of meristem tissue culture

Reason- the virus fails to grow during the growth of host tissue in artificial medium.

• A & R both are true & R is the correct explanation of A

• A & R both are true but R is not the correct explanation of A

• A is true but R is false

• both A & R are false

Consider the following points with respect to advantages of tissue culture-

I) large number of plants can be grown in short time

II) Disease fre plants can be developed from diseased plants

III) seedles plants can be multiplied

IV) Somatic hybrids can be raised by tissue culture, where conventional hybridisation is not possible

• I,II & III

• II,III & IV

• I,II & IV

• I,II,III & IV