1) components of genetic variance
遗传方差组成
3) Genetic variance
遗传方差
1.
Change of genetic variance and inbreeding coefficient in a closed population under BLUP selection;
闭锁群体BLUP选择下遗传方差和近交系数的变化
2.
The non-condition genetic variance analysis showed that fruit branch length was mai nly controlled by additive effects in different developmental stages and its ef fect was expressed to slowly strengthen.
非条件遗传方差分析表明 ,陆地棉果枝的发育动态主要受加性效应控制 ,并且表达效果逐渐加强。
3.
Genetic model for diploid plant seeds and its analysis approaches were applied for estimating the genetic variance and covariance components and genetic correlation of cotton seed density and kernel percentage at four developmental stages (20,30,40 and 50 days after blooming).
）四个发育时期的种子容重和种仁率的遗传方差分量、协方差分量以及这两个性状之间的遗传相关。
4) genetic composition
遗传组成
1.
resources,genetic composition in a mixed population consists of 54 cashew individuals was detected by amplified fragment length polymorphism(AFLP),and level of genetic variability were analyzed.
利用AFLP分子标记技术对54个单株构成的腰果混杂群体的遗传组成进行分析,评估其遗传变异水平,旨在为合理有效利用该资源提供科学理论依据。
2.
This article discusses such problems as selection of transformation receptor variety and retaining receptor variety′s genetic composition of transformed variety during rice genetic engineering breeding.
针对水稻转基因育种中存在的一些实际问题 ,如转基因受体亲本的选择、转基因品种必须保持受体品种的遗传组成等 ,展开了讨论 ,并提出了一些具体的解决措
3.
The relationship between the incidence of over-high-parent (below-low-parent) hybrids and the genetic composition in each of the 10 agronomic traits studied was analysed.
分析了１０个农艺性状的正（负）超亲优势类型出现的频率与其各自性状遗传组成的关系。
5) Genetic covariance
遗传协方差
1.
Analysis of genetic covariances was made between plant height at different growing stages and eating and cooking qualitative traits of rice.
进一步分解各项遗传协方差分量发现，不同性质遗传相关分量差异也较大，表观直链淀粉含量（ＡＡＣ） ，胶稠度（ＧＣ） ，粘度速测仪（ＲＶＡ） 谱与株高的相关性主要以加性相关（ ＣＡ／Ａｍ 和ＣＡ／Ａｍ） 和细胞质相关（ ＣＣ／Ｃ） 为主。
2.
In the article, the linkage strengty of genes is expressed using linkage value, the mathematic expression of genetic covariance of two characters in F 2 and backoross generations with K pairs of linkage genes effecting two characters separatively is extended, and the resolution form of its component is obtained.
本文用连锁值表示基因的连锁强度，推广了Ｋ对连锁基因分别作用于两性状时Ｆ２代及回交世代两性状的遗传协方差的数学表达式，得出了其分量的分解形式。
6) Genetic covariances
遗传协方差
1.
Genetic covariances bewteen these two sets of traits were studied with a mixedlinear model method.
用２个籼型水稻光温敏核不育系和７个粳型广亲和品种为材料，按ＮＣⅡ设计配制杂交组合，获得亲本、Ｆ１及Ｆ２代的籽粒群体，对８个主要品质性状和６个农艺性状进行测定，按混合线性模型的分析方法对品质性状与农艺性状之间的遗传协方差进行了研究，结果表明：在籼粳亚种间杂交组合中，稻米理化品质性状与植株农艺性状之间的遗传协方差大都为直接加性／母体加性协方差，外观品质性状与农艺性状之间的遗传协方差则主要是直接加性／母体加性协方差和母体加性／母体加性协方差，细胞质效应协方差也普遍存在。
补充资料：并合方差
分子式：
CAS号：
性质：是按加权方式计算出的各组的共同方差，当试验分m组进行，总的测定方差s2由m组的方差si2(i=1,2, …,m)共同决定。总方差，式中ni、fi和xi；分别为第i组的测定次数、自由度和平均值，xij是第i组的第j次测定值。
CAS号：
性质：是按加权方式计算出的各组的共同方差，当试验分m组进行，总的测定方差s2由m组的方差si2(i=1,2, …,m)共同决定。总方差，式中ni、fi和xi；分别为第i组的测定次数、自由度和平均值，xij是第i组的第j次测定值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条