selection of mulberry silkworm

用法例句

2 ducks were selected for two generations by individual selection as well as family selection.

本文以仙湖2号鸭为选育材料,采用家系选择和个体选择相结合的方法,通过两代选育,种鸭的繁殖性能和肉鸭的生长速度、饲料转化率及胸腿肌率较原有种群有显著提高,部分性状已达到或超过育种目标,选育效果显著。

The four main traits of growth( H,D,V ) and wood density in 19 year old Chinese fir plantation on 8×8 self diallei crossing were determined and analysed and the index selection were adopted in family selection.

对 19年生杉木 8× 8半双列杂交试验林的树高、胸径、材积和木材基本密度这 4个主要生长和材质性状进行了测定和遗传分析 ,并采用指数选择法进行全同胞家系选择。

Research on the productivity of fungus planted on Liquidambar pedigree

枫香栽种木耳优良菇木家系选择研究

This method of selection called "family selection" is covered in more detail in Chapter 9-12.

这个选择方法称为“家系选择”，在9～12章将要更详细的阐述。

Family Selection with High Nitrogen Efficiency and Investigation on the Effect of Cultivating Seedling of Liriodendron Chinense with Mycorrhizal Fungi

马褂木N高效家系选择和菌根化育苗效果研究

Growth Traits and Selection of Fine Families of Young Betula pendula Seedlings

欧洲白桦早期生长性状表现与优良家系选择

Study on Progeny Test and Selection of Half-sib Families of Melia Azedarach L.;

苦楝半同胞家系子代测定与选择研究

China-Japan "Strategic Reciprocal Relations" and Japan s National Strategic Option;

“战略互惠关系”与日本的国家战略选择

National Innovation System and the Choice of Policy Instrument;

论国家创新系统及其政策工具的选择

Study on the Growth Variance and Selection of Young Forests of Pinus elliottii×P.caribaea Different Families

湿加松不同家系幼林生长变异及选择

These algorithms are also known as LS (link state) algorithms.

这种路由选择算法就是我们所知的关系国家路由选择算法。

Select "Options" from the main menu, then choose "System Information.

选择"选择"从主菜单，然后选择"系统信息。

Study on Variation among Quercus Acutissima Population and Selection of Its Families and Clones;

麻栎群体内变异性和优良家系、无性系选择研究

The Regional Selection and Its Effectiveness of Chinese Fir Fine Families in Huangshan Area

黄山地区杉木优良家系区域选择及效果研究

The research on material selection fuzzy expert system supported by DBMS

数据库支持的材料选择模糊专家系统的研究

Selecting Controlled-Pollination Half-Sib Ginkgo biloba Family at the Seedling Stage

控制授粉的银杏半同胞家系苗期选择研究

COMPREHENSIVE EVALUATION AND SELECTION OF HALF-SIB FAMILIES OF GINKGO BILOBA

银杏半同胞家系综合评价与苗期选择的研究

Study on expert system (ES) for selecting mining methods based on problem prototype

基于问题原型的采矿方法选择专家系统的研究

Studies on Genetic Test and Early Selection for Introduced Pinus Taeda Families;

火炬松引种家系遗传测定和早期选择的研究

The Choice of State Audit System Based on the Stakeholders Game;

基于利益关系人博弈的国家审计体制选择