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Total Plants: 186
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Plant Low PPM High PPM StdDev *Reference
Prunus domestica Fruit 1.0 255.0 4.3 *
Papaver somniferum Seed 15.0 95.0 3.4 Betting on Boron, Unpublished draft by J. A. Duke on file at USDA, draft and papers relating to boron percentages. Includes Internat. Z. Vit. Ern. Forschung 43:1973 (boron).
Apium graveolens Root 4.0 103.0 2.9 *
Valerianella locusta Plant 275.0 350.0 2.6 *
Valerianella locusta Plant 275.0 350.0 2.6 *
Quercus rubra Stem 3.0 66.0 2.5 *
Cydonia oblonga Fruit 85.0 160.0 2.4 *
Fragaria spp Fruit 1.0 160.0 2.4 *
Brassica oleracea var. capitata l. Leaf 1.0 145.0 2.3 *
Prunus persica Fruit 1.0 150.0 2.2 *
Beta vulgaris Root 1.0 80.0 2.1 *
Nyssa sylvatica Leaf 2.0 136.0 2.0 *
Liquidambar styraciflua Stem 2.0 60.0 2.0 *
Apium graveolens Seed 43.0 61.0 1.7 Betting on Boron, Unpublished draft by J. A. Duke on file at USDA, draft and papers relating to boron percentages. Includes Internat. Z. Vit. Ern. Forschung 43:1973 (boron).
Taraxacum officinale Leaf 4.0 125.0 1.7 Betting on Boron, Unpublished draft by J. A. Duke on file at USDA, draft and papers relating to boron percentages. Includes Internat. Z. Vit. Ern. Forschung 43:1973 (boron).
Vigna unguiculata Seed 3.0 60.0 1.7 *
Vigna unguiculata Seed 3.0 60.0 1.7 *
Prunus serotina Stem -- 54.0 1.6 *
Asparagus officinalis Shoot 6.0 104.0 1.5 *
Raphanus sativus Root 0.6 64.0 1.5 *
*Unless otherwise noted all references are to Duke, James A. 1992. Handbook of phytochemical constituents of GRAS herbs and other economic plants. Boca Raton, FL. CRC Press.