1.
Research on the Problems & Countermeasures of Cattle Breed Improvement in Hubei Province;
湖北省牛品种改良面临的问题及对策研究
2.
Study on the Improvement and Popularization of Crop Breeds in Modern Anhui
近代安徽农作物品种改良与推广事业述论
3.
Progress of Plant Genetic Engineering Technology in Mulberry Improving
植物基因工程在桑树品种改良中的应用进展
4.
To improve the quality of(livestock) by crossbreeding with purebred stock.
改良品种与纯种家畜杂交来改良（家畜）品质
5.
They are improved strains bred by the Agricultural College.
它们是农学院培育出的改良品种。
6.
Studies on Genetic Improvement in Cotton Planted in China Since 1949;
建国以来我国棉花品种遗传改良研究
7.
Studies on the Genetic Improvement of the New Varieties Chuannong16;
小麦新品种川农16的遗传改良研究
8.
A Test of Improving Loofah Variety by Using the Technique of Treatment with Magnet;
运用磁处理技术改良丝瓜品种的试验
9.
Study on Wheat Quality Analysis of Henan Main Varieties and the Quality Improvement of Traditional Flour Products Raw Materials;
河南主要小麦品种品质分析及传统面制品原料面粉品质改良研究
10.
a newer product from an improved formula.
是根据改良配方生产出的一种较新的产品。
11.
Evaluation Methods for Hybrid Japonica Rice Varieties and Further Improvement Strategy of Characters in the Rice Breeding;
杂交粳稻品种评价及性状改良技术途径研究
12.
Genetic Diversity Analysis of Tibet Hulless Barley Cultivars and Its Improvement;
西藏青稞品种的遗传多样性分析及其改良
13.
Improved and Spread Grain Type in Hunan Province During the Anti-Japanese War Period;
论抗战时期湖南粮食品种的改良与推广
14.
Flue-cured Tobacco Varieties Resistant to Bacterial Wilt K326 Effects of Genetic Improvement (Ralstania Solanacearum)
烤烟品种K326青枯病抗性遗传改良效应研究
15.
Allopolyploid and Its Utilization in Crop Genetic Improvement
异源多倍体及其在作物品种遗传改良中的应用
16.
Evolution Characteristics of Plant Type During Genetic Improvement in Early Season indica Rice
早籼稻品种遗传改良进程中株型的演变特征
17.
A domestic animal produced by crossbreeding one of purebred stock with one of ordinary stock.
改良品种一种家畜，由一个纯种家畜和一个普通家畜杂交得到
18.
To improve the quality of(livestock)by selective breeding for desired characteristics.
改善品质，改良品种通过为得到所希望的特征而进行的有选择的交配而改善（牲畜）的品质