____ is the most appropriate design when the experimental material is very limited and the number of genotypes is very large.

A. Strip plot design 
B. LSD 
C. Augmented design 
D. RCBD 
E. Split plot design 

Key Point:
The Augmented design is widely used in plant breeding trials where seed or planting material is scarce, allowing evaluation of a large number of genotypes along with a few replicated checks.