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Total Plants: 186
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Plant Low PPM High PPM StdDev *Reference
Malus domestica Fruit 1.0 110.0 1.4 *
Annona squamosa Leaf -- 107.0 1.2 *
Brassica oleracea var. botrytis l. Flower 1.0 76.0 1.2 *
Cuminum cyminum Seed 34.0 50.0 1.2 Betting on Boron, Unpublished draft by J. A. Duke on file at USDA, draft and papers relating to boron percentages.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).
Anethum graveolens Seed 28.0 50.0 1.2 Betting on Boron, Unpublished draft by J. A. Duke on file at USDA, draft and papers relating to boron percentages.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).
Ficus carica Fruit 1.0 100.0 1.2 Betting on Boron, Unpublished draft by J. A. Duke on file at USDA, draft and papers relating to boron percentages.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).
Lycopersicon esculentum Fruit -- 96.0 1.1 *
Allium cepa Bulb 1.0 45.0 1.0 *
Phaseolus vulgaris Seed 2.0 43.0 0.9 *
Pyrus communis Fruit 1.0 82.0 0.8 *
Ribes rubrum Fruit 1.0 80.0 0.8 *
Prunus cerasus Fruit 1.0 80.0 0.8 *
Oenothera biennis Seed 38.0 41.0 0.8 *
Lactuca sativa Leaf 0.9 87.0 0.7 *
Capsicum annuum Fruit 1.0 74.0 0.7 *
Prunus dulcis Seed 8.0 38.0 0.7 *
Brassica oleracea var. botrytis l. Leaf 1.0 85.0 0.6 *
Brassica oleracea var. italica Leaf 1.0 85.0 0.6 *
Liquidambar styraciflua Leaf 6.0 84.0 0.6 *
Prunus armeniaca Fruit 1.0 70.0 0.6 Betting on Boron, Unpublished draft by J. A. Duke on file at USDA, draft and papers relating to boron percentages.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).
*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.