No. Strictly speaking, it's the past participle of the verb to yield. But many adjectives are formed from verbs. Take "closed" for example.
The past form of the verb "yield" is "yielded."
yielded ceded
In a debate defending the negative side, why shouldn't Thomas More yielded to King Henry?
Somatic cells
a product
The Panama Canal is the canal that was yielded in 1978. The agreement that made this possible was called The Brooke Amendment. The amendment was not put in to play until 1979.
(noun: underage person) He was tried as a juvenile, and not as an adult which would have yielded harsher punishment. (adjective: underage, immature) His behavior was often juvenile, and he would shout at you if who disagreed with him. The juvenile raccoon was still trying to follow its mother around.
yielded all of the above result
Made a concession: yielded.
An aftercrop is a second crop yielded in the same year.
Yielded
3litree maytee