ACCUMULATION OF FREE AMINO ACIDS AS A CHEMICAL BASIS FOR MORPHOLOGICAL SYMPTOMS IN TOBACCO MANIFESTING FRENCHING AND MINERAL DEFICIENCY SYMPTOMS.
Steinberg
R A
RA
DIVISION OF TOBACCO, MEDICINAL AND SPECIAL CROPS, PLANT INDUSTRY STATION, BELTSVILLE, MARYLAND.
Bowling
J D
JD
McMurtrey
J E
JE