Advanced Plant Breeding Methods (GPB 605) 2+0 (Question Paper )

                                         University of Agricultural Sciences, Raichur

Department of Genetics and Plant Breeding, College of Agriculture, Raichur

Qualifying Written Examination                            Date : 08-09-2020

Advanced Plant Breeding Methods (GPB 605) 2+0                                     Max marks : 44 Marks

                                                                                                                       

I.    Fill in the blanks with the appropriate words                                                          10 x 0.5 = 5.0

1.       The breeding method which is used to develop recombinant inbred line (RILs) mapping population is _________________.

2.       ____________ method is used to develop near isogenic lines (NILs) mapping population.

3.       ________________ scientist developed the ear to row method.

4.       _________________ variety was developed through speed breeding.

5.       The type of apomixis found in the sorghum crop is ________________.

6.       __________________ is a potent mutagen for plasmagenes.

7.       Single line breeding system is __________________.

8.       An example of CHA is __________________.

9.       Shuttle breeding is followed in the crop ______________.

10.    The male sterile source in bajra is __________________.

 

II.     State true or false                                                                                                      10 x 0.5 = 5.0

 

1.       Homozygous lines can be isolated by bulk method of breeding.

2.       Inbreds are used as parents in breeding programme and also released as a variety.

3.       For transferring genes for male sterility through backcross method, male sterile source parent is used as a female and recurrent parent.

4.       The multivariate analysis method is the most useful method for selection based on parent performance.

5.       Noblisation of Indian canes is an outstanding example of pedigree method of breeding.

6.       ChIP is used for identification of DNA methylation.

7.       Griffing’s numerical approach is possible even when the parents are not included.

8.       The female gametophyte is the eight celled, eight nucleate structure.

9.       Polyploidization may lead to a loss of self incompatibility.

10.    Photoperiod sensitive CGMS was reported in onion.

 

III.           Define the following terms                                                                                     5 x 1.0 = 5.0

 

1.  Multilines               2. Composites            3. First cycle inbreds      3. Reverse breeding                           4.  Cytoplasmic blends   5. Multiplasm hybrid                   

 

IV.           Answer the following questions (any three)                                                         3.0 x 3 = 9.0

 

1.   What is multiline and explain its advantages and disadvantages.

2.   Write down the procedure for diallele selective mating design.

3.   What is ear to row method and write down the modifications of it and their importance.

4.   Write down the difference between the synthetics, composites and hybrid varieties

 

V.      Explain the following questions (Any four)                                                            5.0 x 4 = 20.0

 

1.   Explain backcross method of breeding for transfer of recessive allele and its applications.

2.   Explain all the mating systems in plants.

3.   Explain AMMI, Biplot and GGE biplot methods of stability analysis.

4.   Explain ABC model of flower development

5.   What is reciprocal recurrent selection and explain the procedure in detail.