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Hard fruits of Japanese varieties of astringent
persimmons like Hachiya can be induced to ripen with Ethrel or Ethephon.
The treatment is effective even when the fruits are 80% green.
Prepare a 100 ppm solution (even 50 ppm will work
if the fruits have turned all yellow) and dip the fruits in it for two
minutes. Then store the fruits in a cardboard carton. Open after 72
hours and they will be perfectly ripe to eat.
You can even sell treated fruits to your customers
and tell them to wait for 72 hours. The ripe fruits can be stored in the
refrigerator after these are ripe.
However take following precautions:
Dr. Chiranjit Parmar
www.fruitipedia.com
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