Regression and comprehensive selection index analysis were used to study the yield structure of strong heterosis in hybrid wheat according to the result of yield grouping.
利用Nair单性状水平分组法将36个杂交组合分为4组,按产量分组结果对强优势杂交组合的产量结构进行回归和综合选择指数分析。
By the weight of characters,the index of low nitrogen stress and value at low nitrogen stress,the method for calculating selection index of low nitrogen stress was set up.
利用性状的重要性程度、低氮胁迫指数与性状表现,建立了甘蔗低氮胁迫选择指数计算方法。
The selection index was been made dependent on breeding goats,which needn t determine the economic value of traits selected.
本文利用育种目标制订综合选择指数 ,无须确定性状的经济加权值 ,将该法应用于“荣昌猪瘦肉型品系选育”中 ,其综合选择指数为 :I =- 0 1 5 2 6X1(背膘厚 ) +0 0 0 84X2 (日增重 ) +1 4 4 40 7X3 (体长指数 ) ,间接选择瘦肉率 (Y)。
The paper indicated the main breeding methods for drought resistance and focused to introduce the experiences of CIMYYT on stress management and the use of secondary traits and selection indices.
在总结玉米抗旱育种常规方法的基础上,重点就抗旱育种的关键技术一干旱管理和第二性征选育以及选择指数在抗旱育种中的运用进行了具体阐述。
According to the result,selected with the selection indices formed by 2 correlative characters,kernel number per spike and 1 000-kernel weight,kernel yield per plant could increase to an ideal amount.
研究了16个春小麦新品系的植株高度、穗颈长、单株穗数、单穗粒数及千粒重等性状与单株籽粒产量的选择指数的关系。
The paper indicated the main breeding methods for drought resistance and focused to introduce the experiences of CIMYYT on stress management and the use of secondary traits and selection indices.
在总结玉米抗旱育种常规方法的基础上,重点就抗旱育种的关键技术—干旱管理和第二性征选育以及选择指数在抗旱育种中的运用进行了具体阐述。
Focused on the yield,this paper analyzes the genetic parameters of 15 characters and selective index of yield for 7 varieties of Flos Magnolia .
以产量为中心 ,对 7个辛夷品种15个性状的遗传参数作了测定 ,并分析了产量选择指标 ,建立了产量选择指数。
These include theoretical researches and applications of marker-assisted backcrossing, index selection, and best linear unbiased prediction (BLUP) in animal and plant breeding.
:本文系统地介绍了近年来有关标记辅助选择改良数量性状的研究进展 ,主要包括标记辅助回交、指数选择与最佳线性无偏预测的理论和应用研究概况。
The result shows as follows:the sequence of catalyst activation,D>A>B>C;selective index of linolenate(S Ⅱ),A>B>D>C;linoleat(S Ⅰ),B>A>C>D.
本文在金属元素和组成固定的条件下 ,利用正交实验研究了催化剂的制备条件 (沉淀温度A、老化平衡时间B、干燥温度C、加料方式D)对大豆油加氢催化剂活性与选择性的影响 ,发现影响催化剂活性的顺序是D >A >B >C ,影响亚麻酸选择性指数SⅡ 的顺序是A >B >D >C ,亚油酸选择性指数SⅠ 的顺序是B >A >C >D ,其最佳制备条件是沉淀温度 70℃ ,老化平衡时间 4 0min ,干燥温度 1 0 5℃ ,加料方式为并加法。
Otherwise,the quantative relationship among selective index(SI) on hydrogenation .
２５０ｇ／ｋｇ），初步建立了玉米油氢化的选择性指数（ＳＩ）与催化剂主要制备条件（沉淀温度、载体与活性物配比）及氢化工艺参数（Ｔ、Ｐ、Ｃ）之间的定量关系。
STUDIES ON EARLY BREEDING OF EGGPLANT Ⅱ SELECTION INDEX AND EARLINESS SELECTION
茄子早熟育种研究Ⅱ 选择指数与早熟性选择
In selecting those characters by selection index, the efficiency of selection is dir-ectly proportional to the number of charactrs selected.
利用选择指数进行选择,选择效率有随参加选择性状数的增加而提高的趋势。
Canonical Selection Index and Its Path Analysis in Landrace Pigs
长白猪典范选择指数的构建与通径分析化研究
Comprehensive Selection index and its Path Analysis in Landrace Pigs
长白猪综合选择指数及其通径分析化研究
Research on Dynamics of Selection Limit and the Generation Index of Selection Efficiency
选择极限的动力学及选择效率世代指数研究
Threshold Selection in Tail Index Estimation Based on Exponential Regression Model;
基于指数回归模型的极值指数估计的门限选择
Guide for choosing modular dimensions for waveguide components
GB/T11321-1989波导元件模数尺寸选择指南
The Study of Index Fund Investing Time and Strategy;
投资指数基金的时机选择及策略研究
The Choice of Total Population Quota in the Assessment of GDP Per Capita;
人均GDP核算中人口总数指标的选择
The Research of How to Chice the Broad-Based Stock Index of Futures;
基于市场整体的股指期货标的指数的选择研究
An Empirical Analysis of Benchmark Index of Chinese Stock Index Futures;
我国股指期货标的指数选择的实证分析
ADAPTIVE SELECTION OF PARAMETERS FOR PRECISE COMPUTATION OF MATRIX EXPONENTIAL BASED ON PADE APPROXIMATION
矩阵指数精细积分方法中参数的自适应选择
Select number of flow directions, and for both directions, select the arbitrary direction to be used for flow indicators.
选择流向数，如果是两个方向，选择流量指示器要使用的任意方向。
(of a membrane) selectively permeable.
（指膜）选择性渗透。
A research into drawing uniform stock price index in China
全国统一股价指数编制研究——指数期货标的物选择实证分析
Choose the stored procedures to call and specify any required parameters.
选择要调用的存储过程并指定任何所需参数。
At the sometime the choice of reagent and equipment parameter to the influence of treatment effect is pointed out.
同时指出药剂、备参数的选择对处理效果的影响。
The cheapest and easiest alternative is an index fund.
最便宜也最简单的选择之一就是指数型基金。