搜索结果: 1-15 共查到“知识库 农学 LINEAR”相关记录30条 . 查询时间(0.104 秒)
Comparison of different non-linear models for prediction of the relationship between diameter and height of velvet maple trees in natural forests (Case study: Asalem Forests, Iran)
height-diameter model Acer velutinum north of Iran
font style='font-size:12px;'>
2016/3/2
Velvet maple (Acer velutinum) is one of the woody species in the Hyrcanian forests. In this study, the relationship between height and diameter of velvet maple was surveyed. A complete list of the sel...
Comparison of linear mixed effects model and generalized model of the tree height-diameter relationship
height function mean height Michailoff function Norway spruce mean diameter uniform height curve
font style='font-size:12px;'>
2015/11/26
Models of height curves generated using a linear mixed effects model and generalized model were compared. Both tested models were also compared with local models of height curves, which were fitted us...
Analyses of genetic relationships between linear type traits, fat-to-protein ratio, milk production traits, and somatic cell count in first-parity Czech Holstein cows
Holstein cattle genetic parameters milk yield somatic cell score
font style='font-size:12px;'>
2015/7/2
Genetic and phenotypic correlations between production traits, selected linear type traits, and somatic cell score were estimated. The results could be useful for breeding programs involving Czech Hol...
Reduction of traits for genetic evaluation of linear described traits in the Old Kladruber horse
genetic evaluation described traits
font style='font-size:12px;'>
2015/6/23
The estimated genetic parameters were used for selection of important conformation traits
and reduction in the number of the described characteristics. For reduction in the number of described
tra...
Reduction of traits for genetic evaluation of linear described traits in the Old Kladruber horse
genetic evaluation described traits
font style='font-size:12px;'>
2015/6/23
The estimated genetic parameters were used for selection of important conformation traits
and reduction in the number of the described characteristics. For reduction in the number of described
tra...
Estimation of genetic parameters of reproductive traits in Zandi sheep using linear and threshold models
reproductive traits genetic parameters
font style='font-size:12px;'>
2015/6/23
Genetic parameters were estimated for four basic and two composite traits. Year of lambing
and age of ewe were used as fixed effects. Due to repeated record of ewe animal direct genetic effect...
Linear and linear-threshold model for genetic parameters for SEUROP carcass traits in Czech beef cattle
genetic parameters heritability genetic correlation REML EUROP
font style='font-size:12px;'>
2015/6/9
The objective of this study was to estimate genetic parameters for the results of classifying of carcass traits by the SEUROP method in beef cattle in the Czech Republic using linear and linear-thresh...
Analysis of Czech cold-blooded horses: genetic parameters, breeding value and the influence of inbreeding depression on linear description of conformation and type characters
breeding value inbreeding depression linear description of conformation cold-blooded horses
font style='font-size:12px;'>
2015/6/9
Genetic parameters, breeding values and inbreeding depression for 22 linear type description of conformation and type characters and 4 body measurements were evaluated in a group of 1744 horses of thr...
Genetic parameters for linear type traits in Czech Holstein cattle
linear type traits genetic parameters dairy cattle
font style='font-size:12px;'>
2015/6/9
The objectives of this study were to estimate genetic parameters for 18 currently recorded linear conformation traits in Czech Holstein cattle. The data set consisted of 78 886 first-lactating Holstei...
Analysis of linear description of type traits in the varieties and studs of the Old Kladrub horse
Old Kladrub horse linear description of type traits varieties studs sex year of birth age at description
font style='font-size:12px;'>
2015/6/4
An evaluation of the linear description of type in 494 horses of the Old Kladrub breed for 32 traits was used to analyse the effect of variety, stud, sex, year of birth and age at description. A linea...
Relationships between external and internal udder measurements and the linear scores for udder morphology traits in dairy sheep
Tsigai Improved Walachian Lacaune ewe mammary gland cistern
font style='font-size:12px;'>
2015/6/2
Udder morphology traits were measured and subjectively assessed by the use of linear scores in 266 ewes of Tsigai (T), Improved Walachian (IW) and Lacaune (LC) dairy breeds. Animals were recorded repe...
The relationship between linear type traits and stayability of Czech Fleckvieh cows
cattle stayability type traits correlation
font style='font-size:12px;'>
2015/6/2
The relationship between linear type traits and stayability was analyzed in 34 492 Czech Fleckvieh cows. Pearson correlation coefficients were calculated between linear type traits and stayability of ...
Using linear mixed model and dummy variable model approaches to construct compatible single-tree biomass equations at different scales – A case study for Masson pine in Southern China
aboveground biomass dummy variable model linear mixed model Pinus massoniana
font style='font-size:12px;'>
2015/4/14
The estimation of forest biomass is important for practical issues and scientific purposes in forestry. The estimation of forest biomass on a large-scale level would be merely possible with the applic...
Road network optimization using heuristic and linear programming
cable yarding mixed integer programming network analysis optimum road density production
font style='font-size:12px;'>
2015/3/20
To minimize the cost of logging, it is necessary to optimize the road density. The aim of this study was to determine optimal road spacing (ORS) in Northern Austria. The stepwise regression method was...
Initial evaluation of half-sib progenies of Norway spruce using the best linear unbiased prediction
BLUP analysis progeny test genetic gain
font style='font-size:12px;'>
2015/3/6
The present paper deals with data obtained from fifteen years old Norway spruce (Picea abies [L.] Karst.) progeny test established at three sites in the Sázava River region. Parameter under the evalua...