Question

A plant breeder developed a hybrid sugarcane by grafting two different varieties with desirable characters. The resultant hybrid showed as excellent growth and productivity with increased sucrose content compared to its parental forms.

1. What does this phenomenon refers to? 

2. How this condition can be maintained through further generation?

Answer 1

1. Heterosis or Hybrid vigour 

2. Vegetative propogation is the best suited measure to maintain the vigourisity of hybrid.