Which one of the following statements is not correct with respect to the criteria for selection of seed for sugarcane?

Correct option is C

The statement "Ratoon crop is suitable for seed purpose" is not correct. Ratoon crops (crops that grow from the stubs of previous crops) are typically not recommended for seed purposes because they may carry diseases and have lower vigor compared to the primary crop. The best seeds for sugarcane should come from healthy, disease-free canes from the top one-third or half portion of the crop and should not be more than 10-12 months old.