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1)  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。
2)  Genetic variances
遗传方差
3)  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。
4)  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。
5)  Conditional genetic variance
条件遗传方差
1.
【Result 】The results indicated that: (1) Conditional genetic variances could test more genetic vari.
【方法】以5个水稻品种组配的2×3不完全双列杂交为试材,应用包括胚乳效应、细胞质效应、母体效应的三倍体胚乳模型及条件遗传方差分量分析方法进行分析。
6)  Unconditional genetic variances
非条件遗传方差
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。

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