Additive genetic variance (VA ) and total genetic variance (VG ) are core concepts in biomedical, evolutionary and production-biology genetics. What determines the large variation in reported VA /VG ratios from line-cross experiments is not well understood. Here we report how the VA /VG ratio, and thus the ratio between narrow and broad sense heritability (h(2) /H(2) ), varies as a function of ...

tall fescue (lolium arundinaceum (schreb) sj darbysh.) is one of the fescue species that widely used as forage grass. tall fescue is self-incompatible and wind cross pollination. this study was conducted to study agronomic and morphological characteristics of 25 polycross families of tall fescue during 2011 and 2012 at research station farm in isfahan. number of days to pollination, height of p...

to conserve the genetic resources and identify the strong and weak points in sistan watermelon accessions and compare these with improved cultivars of: sugarbaby and fairfax, an experiment was carried out, based on rectangular lattic design of two replications in 2007. the morphological traits studied, included plant length, plant weight, seed weight, fruit number, fruit length, fruit width, su...

Sugarcane is one of the important cash crops for Pakistan and it has been primary source sugar production. used in our mills it’s by products are making cattle feed, soil manure etc. Present research experiment was conducted to assess 32 genotypes sugarcane collected from different farms cane yield through contributing traits natural field conditions. Traits like Cane height, girth, area leaf...

Two F2 populations segregating for biomass yield and forage quality traits were developed from two separate crosses of tropically adapted maize inbred lines. The parental, F1 generations both evaluated to estimate broad sense heritability, genetic advance correlations these suggest the best as selection criteria towards breeding with high quality.In Cross 1, trait highest broad-sense heritabili...

Abstract Background Pyrolysis-molecular beam mass spectrometry (py-MBMS) analysis of a pedigree Populus trichocarpa was performed to study the phenotypic plasticity and heritability lignin content monomer composition. Instrumental microspatial environmental variability were observed in spectral features corrected reveal underlying genetic variance biomass Results Lignin-derived ions (including ...