BEST ANSWER WINS BRAINLIEST
When and where was the possibility of growing thornless varieties of plants discovered?

The discovery of thornless plants was made around the turn of the 20th century. to name one such thornless plant, particularly, the blackberry plant, the deviation from the  thorned blackberry canes were discovered in the united states. since then, several different thornless blackberry varieties have been cultivated for fruit gardens.

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explanation:

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