CHECK SEED GERMINATION

1. TESTING THE
VIABILITY OF
SEEDS

2. ◦Before sowing it is highly
recommended that a test be
conducted to determine the
viability of the seeds. Many seeds
fail to germinate because they have
been kept too long under bad
conditions

3. ◦Every plant grower should
determine the germinating
power of seeds by testing them
to ensure high percentage of
germination, less expenses,
time and effort.

4. Methods Of Seed Testing
◦RAGDOLL METHOD
◦SEEDBED

5. 1. Rag Doll Method

6. STEPS in RAGDOLL METHOD
◦ a. Prepare a clean rag measuring 20.32cm X 30.48cm and a stick
25.4cm long.
◦ b. Prepare at least 100 seeds for testing. Do not select.
◦ c. Lay the rag on any flat surface and distribute the seeds evenly in
rows on the rag.
◦ d. Roll the rag around the stick for support. Moisten the cloth and
place it in a warm –moist place.
◦ e. Unroll the rag after 5 days. Determine the germination rate
following the formula.

7. % germination = No. of seeds germinated x 100
No. of seeds sown

8. Examples:
◦Regina Mae wants to test the
viability of her palay seeds. She
sow 100 seeds and after 7 days
only 86 seeds germinated.
What is the percentage
germination of the seeds?

9. ◦If the percentage of germination is
80% or above, use the seeds at the
required quantity. If it is below 80%
germination, adjust the seed bulk to
the seeding rate.

10. ◦ Adjusted Amount of Seeds = 100% x rate of seeding
% germination
You will now compute the adjusted seeding rate
of the given.
Seed bulk = 60 kg
Germination = 78%
Seeding rate = 50 kg
6. How much adjusted amount of seeds
will you sow per hectare using the given
bulk, germination percentage and
seeding rate.

11. 2. Seed Box Method

12. If you decide to use the seed box
method, do the following
steps:
◦ a. Prepare a small seed box and fill it with sterilized
soil.
◦ b. Get 100-150 seeds (depending on your choice) at
random. Sow the seeds in rows in the seed box. Cover
the seeds lightly with soil. Water the seeds
occasionally.
◦ c. When seeds have germinated, determine the
percentage germination as in the rag doll method.