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The Orchid Seedbank Project
PO Box 7042
Chandler, AZ 85246

thompson

Thompson Medium

Originally cited by Thompson, 1974. Growing orchids from seed. Journal of the Royal Horticultural Society, 99, 117-22.

 Calcium acetate Ca(CH3COO) 2

 79 mg

 Potassium acetate KCH3COO

 392 mg

 Magnesium sulfate MgSO4 * 7 H2O

 369 mg

 NH4H2PO4

 345 mg

 Urea

 540 mg

 FeSO4 * 7 H2O

 25 mg

 Na2EDTA

 37 mg

 CuSO4 * 5 H2O

 0.24 mg

 H3BO3

 1.86 mg

 MnCl2 * 4 H2O

 2.23 mg

 (NH4)6Mo7O24 * 4 H2O

 0.035 mg

 ZnSO4 * 4 H2O

 0.29 mg

 Sucrose

 30 g

 Agar

 10 g

Source: Rasmussen, H. Terrestrial orchids from seed to mycotrophic plant. Cambridge University Press, Cambridge. 1995.

 

[OSP] [Technical Data]

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The Orchid Seedbank Project
PO Box 7042
Chandler, AZ 85246