2. Preparation of the concentrated extract. The extract from step one prepared at a concentration of four levels: 0.5, 1.0, 1.5
and 2.0 mg / ml
3. testing of plant extracts on the germination and growth of black beans. The seeds, black beans
, the extracts from medicinal plants, six types of concentrations prepared from step 2 to the green beans. By measuring the plant extract in a concentration of 5 mg, then pouring it in Petri dishes. And then placed in a controlled temperature 25 C °
for a period of 4-7 days Randomized Completely Randomized Design with four replications at maturity in the nursery. Logging germination, root length, total length and dry weight of seedlings.
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