Important ARS Questions on Correlation in Plant Breeding

 

1. Define simple correlation. Describe its types and significance in plant breeding.

2. What is partial correlation? Give its types and method of computation.

3. Define multiple correlation. Describe briefly its method of computation and role in plant breeding.

4. Write short notes on the following :
   (i) Simple Correlations
   (ii) Partial Correlations
   (iii) Multiple Correlations
   (iv) Limitations of Correlations

5. Give a brief comparison of simple, partial and multiple correlations.

6. Write short notes on the following :
   (a) Correlation and regression (ARSE, 1984, 1991)
   (b) Linkage and pleiotropy (ARSE, 1984, 1991)
   (c) Multiple regression (ARSE, 1986)

7. Explain briefly genotypic, phenotypic and environmental correlations.

8. Discuss briefly genetic basis of correlations.

9. Describe briefly limitations of simple, partial and multiple correlations.

10. Discuss role of correlations in plant breeding.