Step 1: Understand the concept.
In plant biotechnology, certain cells have the ability to develop into a complete plant under suitable conditions. This property is a fundamental concept in plant tissue culture.
Step 2: Define totipotency.
Totipotency is the ability of a single plant cell to divide, differentiate, and develop into a complete plant organism.
Step 3: Biological significance.
This property allows regeneration of whole plants from somatic cells under laboratory conditions.
Step 4: Analyze incorrect options.
Cell capacity and cell potency are vague terms, while culture method refers to technique, not cellular ability.
Step 5: Application in biotechnology.
Totipotency is the basis of plant tissue culture and micropropagation techniques.
Step 6: Conclusion.
Therefore, the correct answer is totipotency.