1.
(4) A system of virus-free seed potato production be established on the aphid-free, cold mountainous areas over 3,500 m asl.
(4)建立马铃薯脱毒良种繁育体系。
2.
Framework and Function of Conservation and Breeding System for Tianzhu White Yak
天祝白牦牛保种繁育体系构架与运行
3.
The Establishment of Virus-free Breeding System for Strawberry by Combining the Heat Treatment with the Stem Tip Culture;
草莓热处理结合茎尖脱毒繁育体系的建立
4.
Establishment of Cross-breeding System among Huanong-Wenshi Well-bred Pigs of Guangdong Province;
广东华农温氏良种猪杂交繁育体系建立的探讨
5.
Situation and Countermeasure Ments for Constructing Orange Three Grade Breeding Systeem
柑桔无病毒三级繁育体系建设现状及对策
6.
The Position of Small Farming Regions in the Construction of Chinese Sheep and Goat Breeding System
养殖小区在我国绵山羊育种繁育体系建设中的地位
7.
Establishment of High Effect Regeneration System of Tissue Culture for Three Improved Clones in Paulownia fortunei
“桐优1”等泡桐优良无性系组培高效繁育体系建立
8.
Study on the Propagation System of Virus-Free and Industry Development of Potato;
贵州省盘县马铃薯脱毒种薯繁育体系及产业发展的研究
9.
Study of Virus-free Minipotato Production and Propagation & Growing System;
马铃薯微型脱毒种薯生产及生产用种繁育体系研究
10.
The Study on Duroc×Landrace×Yorkshire (or DYL) of Swine Breeding System in Mudanjiang City;
牡丹江市杜长约（杜约长）三元杂交猪繁育体系的研究
11.
Promoting the Rapid Development of Shanxi s Livestock Husbandry through Increasing the Input for the System of the Good Poultry and Animal Strains;
加大畜禽良种繁育体系投入 促进山西畜牧业快速发展
12.
Breeding Characteristic and Propagation System of Physocarpus Amurensis;
风箱果（Physocarpus amurensis）繁育特性及繁殖体系研究
13.
Preliminary Study on the Embryo Culture, the Rapid Propagating System of the Stem Segments and Ploidy Breeding in Punica Granatum L.
石榴胚培养、茎段快繁体系及倍性育种研究初报
14.
The Study on the Construction of the Potato Breeding of Better Stocks and Enhancing System in Dingxi
定西市马铃薯良种繁育与推广体系建设研究
15.
Kinship Analysis of One Broodstock Population of Large Yellow Croaker Pseudosciaena crocea
养殖大黄鱼一个繁育群体亲本亲缘关系剖析
16.
Genetic Diversity and Breeding Strategy of Cerasus Campanulata Maxim.
福建山樱花群体遗传多样性、繁育技术体系和育种策略研究
17.
To crossbreed or cross - fertilize.
杂交繁育，异体受精
18.
Endodeme is a deme composed of predominantly closely inbreeding but dioecious individuals.
同系同群种是由近亲繁育占优势，但雌雄异株的个体组成的同群种。