The present study examined the importance of mean (m+a' and d) components in the performance of single-cross hybrids for the formation of new populations and determined the contribution of the mixed model (best linear unbiased predictor of random effects, BLUP) method associated with molecular markers for the choice of crosses to obtain interpopulation hybrids. Ten single-cross commercial hybri...

Heterosis is an important phenomenon in agriculture. However, heterosis often greatly varies among hybrids and among traits. To investigate heterosis across a large number of traits and numerous genotypes, we evaluated 12 life history traits on parents and hybrids derived from five Arabidopsis thaliana ecotypes (Col, Ler-0, Cvi, Ws, and C24) by using a complete diallel analysis containing 20 hy...

one of the most effective ways to deal with drought stress and increase water use efficiency is the development of drought-tolerant varieties which display less reduction in yield per unit water reduction. therefore, the breeding of diploid pollinators was considered as an essential measure for producing drought-tolerant hybrids. in this study, from 4 diploid pollinator populations, 45 half-sib...

Cornell University evaluates 95-115 day corn silage hybrids at two locations in central/western NY and 75100 day corn silage hybrids at two locations in Northern New York. We arrange the hybrids in the fi eld into 5day relative maturity (RM) groups (i.e. 95-100, 101105 day hybrids, etc.) and harvest one or more RM groups at a particular site when the hybrids are in the 60-70% moisture range. We...

A study was conducted to assess the performance of maize hybrids with Bt event MON810 (Bt-hybrids) against the maize stem borer Busseola fusca (Fuller) in a biosafety greenhouse (BGH) and against the spotted stem borer Chilo partellus (Swinhoe) under confined field trials (CFT) in Kenya for three seasons during 2013-2014. The study comprised 14 non-commercialized hybrids (seven pairs of near-is...

The mutation rates of specific loci and chromosome regions were estimated for two types of dysgenic hybrid males. These came from crosses between P or Q males and M females in the P-M system of hybrid dysgenesis. The M X P hybrids were the more mutable for each of the loci and chromosome regions tested. The Beadex locus was highly mutable in these hybrids but did not mutate at all in the sample...

Tâ ÇÉÅ wx W|xâ Revue des Études de la Langue Française Revue semestrielle de la Faculté des Langues Étrangères de l'Université d'Ispahan Cinquième année, N° 8 Printemps-Eté 2013, ISSN 2008- 6571 ISSN électronique 2322-469X Cette revue est indexée dans: Ulrichsweb: global serials directory http://ulrichsweb.serialssolutions.com Doaj: Directory of Open Access Journals http://www.doaj.org ...

The compositions of the volatile leaf oils of Pseudotsuga menziesii var. menziesii and var. glauca and their hybrids were examined and utilized to examine multi-variate methods for the detection of hybridization. The first cross (coastal parent 226 x inland parent 267) produced four hybrids whose oils were much like the inland (var. glauca) parent, and 6 hybrids with composition more intermedia...

In several crops, the water deficit is perhaps the main limiting factor in the search for high yields. The objective of this study was to evaluate the phenotypic stability of maize hybrids in environments with and without water restriction using the analytical factor (AF) approach. We evaluated 171 maize hybrids in 14 environments, divided into environments with (A1, A2, A3, A4, A5, A6, and A7)...