Effects of divergent selection for incidence of tibial dyschondroplasia (TD) on purebred and crossbred performance. 2. Processing yield

2000 ◽  
Vol 41 (5) ◽  
pp. 566-569 ◽  
Author(s):  
S. Yalçin ◽  
X. Zhang ◽  
G.R. McDaniel ◽  
D.L. Kuhlers
Keyword(s):  
Divergent Selection ◽  
Tibial Dyschondroplasia ◽  
Selection For

Divergent Selection for In Vitro Dry Matter Digestibility in Smooth Bromegrass 1

Crop Science ◽  
1986 ◽  
Vol 26 (6) ◽  
pp. 1123-1126 ◽  
Author(s):  
N. J. Ehlke ◽  
M. D. Casler ◽  
P. N. Drolsom ◽  
J. S. Shenk
Keyword(s):  
Dry Matter ◽  
Divergent Selection ◽  
Smooth Bromegrass ◽  
Dry Matter Digestibility ◽  
Selection For

Effects of Divergent Selection for Growth on Carcass Traits in Japanese Quails

2014 ◽  
Vol 42 (2) ◽  
pp. 51-56
Author(s):  
Khairy M. El–Bayomi ◽  
Mahmoud S. El-Tarabany ◽  
Mohammed A.F. Nasr ◽  
El-Shimaa M. Roushdy
Keyword(s):  
Carcass Traits ◽  
Divergent Selection ◽  
Japanese Quails ◽  
Selection For

scholarly journals Direct and Correlated Responses to Multitrait, Divergent Selection for Immunocompetence

1994 ◽  
Vol 73 (1) ◽  
pp. 18-32 ◽  
Author(s):  
R.P. KEAN ◽  
A. CAHANER ◽  
A.E. FREEMAN ◽  
S.J. LAMONT
Keyword(s):  
Divergent Selection ◽  
Correlated Responses ◽  
Selection For

scholarly journals Genetic correlation between traits in the ESALQ-PB1 maize population divergently selected for tassel size and ear height

2001 ◽  
Vol 58 (1) ◽  
pp. 119-123 ◽  
Author(s):  
Austeclínio Lopes Farias Neto ◽  
José Branco de Miranda Filho
Keyword(s):  
Genetic Correlation ◽  
Correlation Coefficients ◽  
Divergent Selection ◽  
Phenotypic Correlation ◽  
Base Population ◽  
Branch Number ◽  
Maize Population ◽  
Tassel Branch Number ◽  
Ear Height ◽  
Selection For

Full-sib and selfed (S1) progenies were obtained from sub-populations of ESALQ-PB1, divergently selected for tassel size (T+ and T-) and ear height (E+ and E-), and used for estimating genetic and phenotypic correlation coefficients between traits. The analyzed traits were: EW- total ear weight (g/plant), PH- plant height (cm), EH- ear height (cm), TB- tassel branch number and TL- tassel length. The highest genetic (rG) and phenotypic (rF) correlation was observed for the combination PH x EH, as expected, with average of 0.800 and 0.778, respectively over sub-populations and locations. It is apparent that divergent selection for tassel size did not affect greatly the correlation between PH and EH in the full sib progenies, but in the inbred progenies the correlation was smaller in the sub-population selected for larger tassels. Genetic correlation between PH and EH with tassel traits was always positive but ranged from 0.020 to 0.668 in Piracicaba and from 0.06 to 0.309 in Rio Verde. Genetic correlation between PH and EH with yield (EW) also was positive in the range of 0.087 to 0.503. EH showed higher correlation with EW in relation to PH x EW and differences were larger in the sub-populations divergently selected for ear height. Correlation between tassel traits with other traits was positive in most of instances and a lack of consistency was observed among sub-populations. Generally the coefficients of genetic and phenotypic correlation differed substantially from the estimates in the base population ESALQ-PB1 before divergent selection for tassel size and ear placement. Divergent selection affected the correlation between traits under unpredicted and varying magnitudes.

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