[PDF] Top 20 Genetic diversity in soybean genotypes with resistance to Heterodera glycines

... of genetic diversity allelic differences in a population can be identified, which is considered essential in the choice of genotypes to be used as parents (Falconer ...steps ... See full document

... activity in nematode-infected plants are: decreased chlorophyll content (Nagesh & Dhawan, 1988), changes in stomatic conductance (Saeed et ...produced in the roots (Loveys & Bird, 1973). ... See full document

... losses in the ...component in the integrated management of SDS. Due to the probable polygenic nature of genetic resistance to this disease and the large environmental influence ... See full document

... Abstract: In order to study the effect of resistance and temperature on soybean cyst nematode development, soybean cultivars Bell (PI88788 resistance) and S20-20 (susceptible) ... See full document

... the genetic variability for resistance to the cyst ...evaluated in the genotypes artificially inoculated with eggs of the cyst nematode and among the number of females obtained ... See full document

... of resistance present in genetic materials should help breeding programs in developing cultivars resistant to ...four soybean genotypes with different degrees of ... See full document

... predominated in the genetic control of soybean resistance to Asian rust, and the interaction of the segregant populations with the environment, although signi! cant, did not ... See full document

... cultivars with syncytium degeneration occurring four to five days after infection, present a small number of males (Endo, ...that resistance genes against this nematode can affect males and females ... See full document

... associated with variation in important components of the immune response in our natural populations of field voles (Figure ...localized to these genes; no associations with ... See full document

... studied in soybean breeding were especially important: WS, PH and ...genotype in the plot, and genotypes with yield greater than 2500 kg\ha were ...importance to quantify the ... See full document

... Heterodera glycines Ichinohe, the soybean cyst nematode (SCN) was detected in Brazil in 1992 and since then it has been causing losses to Brazilian soybean crop ...great ... See full document

... fodder in years with low precipitation and providing food during the dry period, whether in the form of hay, silage, or in ...plants with the potential to be cultivated in ... See full document

... stirred in 2 l of water, left unstirred for 60 s, then passed through a 450 ìm-pore-opening screen and collected on a 44 ìm-opening ...added with one mole of sugar solution for further centrifugation at ... See full document

... the to- tal variation in SDS disease incidence of RILs (recombi- nant inbred lines) from the Forrest x Essex cross, and they showed only the presence of additive genic ...action. In an- other study ... See full document

... Asian soybean rust (ASR), is an airborne foliar disease considered to be one of the most serious economic threats for soybean producers (Goellner et ...detected in the American Continent, ... See full document

... linked to the resistance ...analysis with complete dominance of two independent ...Satt356 in the selection of soybean genotypes resistant to race 14 cyst nematode ... See full document

... used to obtain insect-resistant soybean genotypes, with satisfying results as to selection gains, pre-breeding lines and cultivars, nota- bly the cultivar IAC-100, an example of ... See full document

... Com vista ao estudo de atração e penetração de Meloidogyne javanica (Treub) Chitwood e Heterodera glycines (Ichinoe) em soja (Glycine max L.), desenvolveu-se uma técnica empregando-se segmento de raiz com ... See full document

... O efeito de B. subtilis na migração de H. glycines revelou que a interferência na orientação provocou dispersão dos juvenis mais desordenadamente do que nos tratamentos que não receberam a bactéria. Este resultado ... See full document

... The soybean cyst nematode Heterodera glycines causes great yield losses to soybean in ...occurring in Brazil and, in the Maranhão State, only the race 9 was ...was ... See full document