breeding character in a sentence

1. Objective by investigating papulation density and breeding characters of dengue vectors in fuzhou changle international airport to prevent and control dengue fever
2. The subject is reviewed on the value of low chilling peach and nectarine varieties , breeding history , breeding characters , genetic background , breeding objective and introduction of the advanced varieties as well as the breeding objective in china
3. Abstract : the subject is reviewed on the value of low chilling peach and nectarine varieties , breeding history , breeding characters , genetic background , breeding objective and introduction of the advanced varieties as well as the breeding objective in china
4. It's difficult to find breeding character in a sentence.