Results 91 to 100 of about 21,320 (203)
Evaluation of heterosis and heterosis retention in Bos taurus-Bos indicus crossbred cattle for productivity traits in cows [PDF]
Reproductive and weight traits were analyzed for Angus (A), Brahman (B), Hereford (H), and Nellore (N) straightbred cows; F1 NA cows; 3/8N 5/8A cows and quarter blood composite cows (BANH) of the four straightbreds in Central Texas.
Meuchel, Meredith Christine
core
The effect of initial linkage disequilibrium and natural selection in pooled populations : experiments with Tribolium and simulation [PDF]
In chapter 2 a number of the mechanisms are discussed through which genetic polymorphisms can be maintained in natural populations: overdominance, frequency dependent selection and neutral alleles with associative overdominance.
Stam, P.
core
Powdery mildew (PM), caused by Blumeria graminis f. sp. tritici (Bgt), is one of the destructive wheat diseases worldwide. Wild emmer wheat (Triticum turgidum ssp. dicoccoides, WEW), a tetraploid progenitor of common wheat, is a valuable genetic resource
Wenxin Wei +16 more
doaj +1 more source
SIMULATION OF HETEROSIS EFFECTS ON COSTS OF PORK PRODUCTION [PDF]
Individual plus maternal heterotic effects on swine production were simulated with a bioeconomic model by changing performance levels of eight traits: -8 d in age at puberty, +3% in conception rate, +.94 in pigs born/litter, +.035 kg in pig birth weight,
Johnson, R. K. +3 more
core +1 more source
The Interaction Between Abiotic and Biotic Soil Factors Modulates Heterosis Expression in Maize
Heterosis, or hybrid vigor, refers to the phenotypic superiority of hybrids relative to their parental inbred lines. Recent work showed that manipulation of the soil microbial community consistently altered heterosis, but the direction of the effect was ...
Kayla M. Clouse +6 more
doaj +1 more source
Heterosis and Heterosis Retention for Reproductive and Maternal Traits in Nellore-Angus Crossbred Cows [PDF]
Calving rate, weaning rate, birth weight, weaning weight, and ADG from 1997 to 2011 were investigated in Angus, Nellore, F_(1) Nellore-Angus, first generation 3/8 Nellore 5/8 Angus produced as following: (1/2 Nellore 1/2 Angus sires and 3/4 Angus ...
Obeidat, Mohammad Diya Talal Hamed
core
The root architecture is crucial for the robust growth and nutrient absorption in cereals. However, it is urgent to identify the factors that simultaneously optimize root architecture and nutrient utilization in wheat. In this study, a beneficial role of
Dejie Du +18 more
doaj +1 more source

