This group consists of round-tipped leaves from the lowest portion of the stalk. Leaves of the P group ripen prematurely as a result of starvation and show a material amount of injury characteristic of leaves grown close to the ground.
    
    
    
        
            Code of Federal Regulations
        
        [42 FR 21092, Apr. 25, 1977, as amended at 49 FR 16756, Apr. 20, 1984]