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This article in AJ

  1. Vol. 64 No. 3, p. 280-282
     
    Received: May 21, 1971
    Published: May, 1972


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doi:10.2134/agronj1972.00021962006400030007x

Higher Fatty Acids of Flue-cured Tobacco Leaves Varying in Stalk Position1

  1. H. Chu11,
  2. T. C. Tso11 and
  3. J. F. Chaplin2

Abstract

Abstract

Cured leaves from eight stalk positions of three varieties and one breeding line of flue-cured tobacco (Nicotiana labacum L.) were analyzed for fatty acid content and lipid residues. The higher fatty acids with 14 to 18 carbons were determined. The varieties analyzed were ‘Coker 139,’ ‘SC-58,’ ‘NC-95,’ and a breeding line ‘LN-38.’ These varieties differed in alkaloid content and other physical and chemical characteristics. Leaves from SC-58 and LN-38 had the highest lipid residue. For all varieties lipid residues were lowest in leaves from the bottom stalk position and next lowest in leaves at the top position. LN-38 had the highest total fatty acid content of any of the varieties. All varieties except Coker 139 yielded the highest total fatty acid content in leaves at the second stalk position. Also, the proportion of the unsaturated acid 18:3 was highest at position 2 in all varieties and decreased toward the top of the plant.

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