Programs | Research Studies | Leaf Description

Leaf Description

  • Tobacco Leaf Position and Description with corresponding tobacco grade.

  • TIPS
    LEAF
    CUTTERS
    LUGS
    PRIMINGS

    Tips (T) (not included in the International Grading System)

  • Group of leaves normally grown at the top position of the stalk. These leaves are small and narrow. These are the thickest and most bodied leaves. (18.6% of the total plant leaves)

  • Possible Grades: D, E, R
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  • Leaf (B)

  • Group of leaves normally grown above the middle portion of the stalk. Cured leaves from this upper stalk position have a tendency to fold inward, exposing their midrib and leaf back, presenting a close-faced pointed tip and are thin to heavy bodied. Group of leaves that show no ground injury and characteristically possess an oily and somewhat compact texture, narrow, radical vein venation and will not possess lamina toward their naked midrib butt. (42% of the total plant leaves)

  • Possible Grades: A, B, C, D, E, R
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  • Cutters (C)

  • Group of leaves normally grown at the middle position of the stalk. Cured leaves from this stalk position have a tendency to roll and curl their edges underneath, concealing their midribs presenting an open-faced, oblate to rounded tip and are usually thin to medium-thick bodied. Group of leaves are spready in relation to their length and show little to no ground injury and waste. Leaves of this group, characteristically show a wide and patterned vein venation and will possess lamina toward their webby midrib butt. Cutter leaves display fullest color saturation, a characteristic of leaves grown at the mid-portion of the stalk. (8% of the total plant leaves)

  • Possible Grades: AA, A, B, C, D, E, R
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  • Lugs (X)

  • Group of leaves normally grown near the lowest position of the stalk. Cured leaves from this stalk position have a tendency to roll or fold inward, exposing their leaf backs, developed midribs and fibers. Leaves of this group characteristically show high degrees of maturity and leaf structure with a grainy texture and display full color and are medium to thin bodied. Leaves of this group, likewise, show a material amount of ground injury, waste and soil particles, which is a characteristic of leaves grown near the soil surface. (13% of the total plant leaves)

  • Possible Grades: A, B, C, F1, F2, R
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  • Primings (P)

  • Group of leaves normally grown at the lowest position of the stalk. Relatively, medium to thin bodied leaves which are flat, open-faced and have a blunt or oblate tip.

    Group of leaves which ripen prematurely, as a result of starvation and display a lack of color due to deficiency. These leaves tend to fold underneath, concealing their undeveloped, small midribs and fibers. Leaves of this group show a material amount of ground injury, waste and soil particles, which is a characteristic of leaves grown nearest the soil surface. (12% of the total plant leaves)

  • Possible Grades: F1, F2, R
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  • Standard Grades and Grade Descriptions
    Philippine Flue-Cured Virginia Leaf Tobacco

    TOBACCO TYPES (CY 2009-2011)
    GRADE VIRGINIA GRADE BURLEY GRADE NATIVE/DARK
    AA 66.00     HIGH 48.50
    A 64.00 A 43.50 M-1 39.00
    B 62.00 B 41.50 M-2 31.50
    C 60.00 C 39.50 L-1 24.00
    D 55.00 D 35.00 L-2 14.50
    E 54.00 E 34.00    
    F-1 50.00 FF 26.50    
    F-2 47.00        
    R 28.00 R 18.00    

  • Note: In applying the proper grade in relation to the injury tolerance, any excess of the allowable percentage, as indicated in the above tabulation, will result in the application of the next lower grade, provided, that the corresponding leaf descriptions of the original grade are satisfied and provided, further, that is the injury is more than 25%, the grade of the tobacco shall be reject.

    *Reject tobacco includes oxidized/chemically treated, barn scald, barn scorched and/or injury of more than 25%.
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