Yield as a major breeding objective in rice, is directly influenced by the yield-component traits including the number of productive tillers per plant, grains per panicle and 1000-grain weight.
水稻产量作为主要的育种目标性状，直接受到每穗实粒数、千粒重和单株有效分蘖数等产量构成因子的影响。
Objective To provide scientific evidence for the screening of excellent germplasm and the breeding of seedling of Rhizoma Alpiniae Officinarum (RAO) in Good Agricultural Practice (GAP) base.
目的为高良姜规范化种植(gap)的优良种质筛选和种苗繁育提供科学依据。
Objective To reveal the breeding system and endangered mechanism of Dendrobium officinale in Danxia landform.
目的：揭示丹霞地貌生境中铁皮石斛的繁育系统及濒危机制。
Objective To analyze the genetic relationship among the different cultivars of Cornus officinalis and provide some foundation for heredity breeding.
目的分析山茱萸不同栽培品种之间的遗传关系，为山茱萸品种选育提供依据。
Objective To investigate species, infection and breeding regulation of the intermediate host of Trichobilharzia in the Huaihe River System.
目的探讨淮河水系毛毕吸虫中间宿主椎实螺种类、感染情况及繁殖节律。
The basic objective of breeding end using different mulberry varieties is put forward from the breeding Angle.
从育种角度对选育和利用不同目的桑树品种的基本目标作了简要展望。
Objective To explore the effectiveness of permanently breeding SPF rats in individually ventilated cage (IVC) system with ing relative clean environment.
目的在相对洁净环境下使用IVC系统，观察长期饲养s PF级大鼠的效果。
Objective: the aim of this study was to provide the basis for breeding new sunflower species with high yield and fine quality and studying on hereditary regularity of stigma color on sunflower.
目的：为选育优质高产向日葵新品种及向日葵柱头颜色遗传规律研究提供依据。
Objective: in order to study experimental bacteria carriage in insects, we developed an experimental breeding technique for an insect in a single tube.
目的：为开展蝇、蜚蠊等病媒昆虫的实验带菌消长研究，建立昆虫单虫单管实验饲养技术。
Objective: To mutate breeding with Penicillium chrysogenum in existing production in order to obtain stable high yield strain.
前言： 目的：对现生产用产黄青霉菌诱变育种以获得稳定高产菌株。
OBJECTIVE To provide the information for the breeding of Panax ginseng by analyzing the genetic differentiations among different strains.
目的通过对不同品系人参之间的遗传变异进行分析，为人参育种提供依据。
The objective of this study was to screen effective resistance sources to P. sojae for disease control and resistance breeding.
本研究目的是筛选大豆疫霉根腐病抗源，为病害防治和抗病品种的选育提供参考。
Objective : To provide the theoretical basis and applied technology for breeding superior species of Dendrobium officinale.
目的：为铁皮石斛杂交育种与野生资源保护提供基础。
Since the 1993 ban, the stated objective of tiger breeding centers is to breed tigers for eventual reintroduction to the wild, which has not yet been successfully carried out anywhere.
自1993年禁令，明确目标虎繁育中心，是滋生虎为最终放归到野外，尚未成功地进行了地方。
This paper summarizes the objective, several typical theories and ideotype models of rice breeding for super-high yield in China, and introduces the latest achievements in super-rice breeding.
综述了中国超级水稻育种目标、中国超级水稻育种实践中形成的几个有代表性的理论及株型模式，并介绍了中国超级水稻品种及组合选育的最新成果。
Objective: to comparatively determine the genetic variation and differentiation of different breeding strains of Panax notoginseng for providing the basic information for genetic breeding.
目的：通过对不同三七选育品系的遗传变异和遗传分化程度进行分析比较，为三七的品种选育提供理论依据。
Fish culture has the same objective as agriculture and stock breeding, that is, to increase production by all means and improve its quality.
养鱼业的目标同种植业、畜牧业一样，是尽可能地增加食品的生产，提高食品的质量。
Objective By investigating population density and breeding characters of Dengue vectors in Fuzhou Changle International Airport to prevent and control Dengue fever.
目的调查长乐国际机场登革热媒介种群密度，预防和控制登革热暴发流行。
Wheat is the word's important food crop, and improving the nutritional quality of wheat is an important objective in wheat molecular breeding programs.
小麦是世界上重要的粮食作物，提高其营养品质是小麦遗传育种研究的重要课题。
Objective to establish the SPF rabbits breeding stock for our department, and to meet the needs of scientific research, production and test.
目的对普通级实验家兔进行剖腹净化建立SPF家兔种群，提高实验用兔的质量，满足科研、生产及检定工作需要。
Objective To investigate the situation and reason of cockroaches breeding and spreading, and put forward integrated control countermeasures.
目的调查某生活区两栋居民楼蟑螂暴发孳生情况及原因，提出综合防治对策。
Objective to investigate species of mosquitoes in rice growing area and relationship between geographical landscape and mosquitoes breeding.
目的调查稻田种植区蚊虫种类，蚊虫的孳生与其周围地理景观因素之间的关系。
Objective to find out the types of the breeding places of the mosquito larvae and the distribution characteristics of the natural mosquito population in urban area of Guangzhou.
目的了解广州市城区蚊虫自然种群幼虫的孳生地类型及种群分布特点。
Objective to find out the types of the breeding places of the mosquito larvae and the distribution characteristics of the natural mosquito population in urban area of Guangzhou.
目的了解广州市城区蚊虫自然种群幼虫的孳生地类型及种群分布特点。
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