Heterosis/Hybrid Vigour || Inbreeding Depression || Polyploidy || Origin OF Bread || Wheat Selection Methods

Write a note on origin of Bread wheat.

OMR|Plant Hybridisation|Important Facts|Heterosis / Hybrid Vigour|Inbreeding Depression

Assertion : Loss of vigour called inbreeding depression occurs when inbreeding is continued for many generations. Reason : Quarantine can be done to overcome the harmful effects of inbreeding depression.

which method is used to eliminate inbreeding depression?

Suggest a method to overcome excessive inbreeding depression.

Assertion :- Inbreeding depression can be over come by mating of selected animals of the bread with unrelated animals of the same breed. Reason :- This helps to restore fertility & yield by increase in heterozygosity.

Assertion: Hybridisation is involved in the production of hybrid vigour or heterosis. Reason: Hybrid is obtained by crossing the selected inbreed lines.

Assertion : A single outcross often helps to overcome inbreeding depression. Reason : Out-crossing is best breeding method for increasing milk productivity.