农业试验小区是选育良种、改进栽培技术、进行品种对比试验的基地。
Agricultural experiment plot became the base for breeding improved varieties, improved culture technology and variety comparative test.
由于使用更好的化肥、选育良种、机械化程度提高，农产品的生产成本已经大幅下降。
Costs of production have been substantially lowered for farm products by better application of chemical fertilizer, improved strains of seed and increasing mechanization.
已有多种方法被用于提高地方良种的性能，包括杂交育种，以及通过与良种的回交和品系内选育进行的品种改良。
Various approaches have been used to improve the performance of adapted indigenous stock, including cross-breeding and upgrading through back-crossing with improved breeds, and within-line selection.
国家鼓励和支持单位和个人从事良种选育和开发。
The State encourages and supports units and individuals in their efforts to select and develop improved varieties.
这将为核桃的良种选育以及核桃品质鉴评提供有力的科学依据。
And the forceful scientific foundation shall be supplying in the walnut improved variety breeding along with the quality evaluate.
在啤酒生产过程中，啤酒酵母的良种选育和扩大培养对保持啤酒质量稳定、口味纯正起着决定性的作用。
The selection of the improved variety and the spreading cultivation of the beer yeast plays a key role in order to keep a steady quality and the pure taste in the beer production process.
本文以眉县秦川牛良种选育示范基地为例，探讨了秦川牛转型的主要选育措施。
This paper, taking Meixian Qinchuan cattle breeding Demonstration Base as an example, explores the chief breeding measures of transforming Qinchuan cattle.
利用聚类分析方法中的最短距离法，探讨某种源经济性状向最理想性状选育的可能性，并为今后的良种选育和栽培区划提供重要依据。
The possibility of inverting from some characteristics to excellent ones is studied after applying cluster analysis, which is the basis of elite seed selection and plant division.
要改变这一状况，必须建立松脂生产基地，选育高产脂力良种，推广先进采脂技术，实行集约化经营。
It is necessary to build bases of oleoresin production, select high gum-yielding trees for planting, spread advanced tapping technology and introduce intensive management.
本发明涉及海藻组织培养、海藻遗传选育及养殖，运用组织培养技术获得龙须菜优良种苗的方法。
The present invention relates to algae tissue culture, genetic algae breeding and cultivation, and is tissue culture process of obtaining excellent asparagus seedling.
本研究还从生长和与材质有关特性方面对6个种源进行综合评价，为柚木优良种源的选育提供依据。
In addition, the growth and wood relevant properties of the 6 provenances were comprehensively evaluated which could provides a base for the selection of T. grandis provenances.
加强经济植物的引种驯化、品种选育工作，建立经济植物良种苗木繁育基地和推广体系；
Enhance the research on economic plants introduction and acclimatization, and construct breeding base and spreading system of excellent varieties of economic plants;
在栽培生产过程中，选育高产优质良种是提高药材产量与质量的有效途径。
Choosing the good breed with high output and high quality is an effective measure in improving the output and the quality of the material medica during the cultivation of medicinal plants.
在药用植物的良种选育工作中，确定育种目标是基础。
The selection of objectives is the foundation in the breeding. The breeding of improved varieties usually goes through the following procedues: 1.
在药用植物的良种选育工作中，确定育种目标是基础。
The selection of objectives is the foundation in the breeding. The breeding of improved varieties usually goes through the following procedues: 1.
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