品種 ひんしゅ改良 かいりょうではありませんでした
hinshukairyōdewārimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of 品種改良

1. It was not improvement of breed.; It was not variety improvement.

Past/Perfective
Negative
Polite
Formal Register