改かい良りょう種しゅ

noun

improved variety; improved strain; improved breed

Refers to a plant variety, animal breed, or strain that has been selectively bred or genetically improved for desirable traits.

• この改かい良りょう種しゅの米こめは病びょう気きに強つよい。

  This improved rice variety is resistant to disease.

• 農のう家かは収しゅう穫かく量りょうを増ふやすために改かい良りょう種しゅを導どう入にゅうした。

  Farmers introduced improved strains to increase yields.