As in all plants the main factors influencing their growth are soil composition and climate conditions.

The quality of tobacco plant's leaves are also affected by their position on the plant, which determines its content of sugar and nicotin, and their exposition to sun beams which infuence its colours, blemish, and degree of ripeness.

SOILS & PLANTS SPECIFICATIONS

Soil and sun light effect the growth and character of plants of tobacco and their leaves.

Traditional Black Soils and Southern Light Soil Tobaccos

GRADE	COLOUR	BLEMISH max	AGMARK grade
Farm I	Bright lemon or orange	25%	1 to 4
Farm II	Lightbrownish yellow or brownish lemon	25%	LBY
Farm III	Light brown	50%	LBY2
Farm IV	Brown	50%	Brown
Farm V	Dark brown	50%	Dark Brown
Farm VI	Light greenish orange	25%	LG
Farm VII	Light medium green	25%	LMG
Farm VIII	Medium green	25%	MG
Farm IX	Dark green		DG
Farm X	Colour may range from orange, yellow green or brown		PL, Bits

Plant position grades for Northern light soils Tobacco

PRIMINGS	LUGS	CUTTERS & LEAF	TIPS
P10 P1L PIJ	X10 X1L XIJ	L10 LIL L1J	T20 T2L T2J
P20 P2L P2J	X20 X2L XIJ	L20 L2L L2J	T30 T3L T3J
P30 P3L P3J	X30 X3L XIJ	L30 L3L L3J	T40 T4J T4R
P40 P4L P4J	X40 X1L XIJ	L40 L4L L4J	T50 T5J T5R
P40 P5L P5J	X50 X1L XIJ	L50 L5R L5L L5L
BG BMG		NDM NDD	TG TMG