Peroxidase activity in the seed coats of soybean (Glycine max [L.] Merr.) is controlled by the Ep locus. We compared peroxidase activity in cell-free extracts from seed coat, root, and leaf tissues of three EpEp cultivars (Harosoy 63, Harovinton, and Coles) to three epep cultivars (Steele, Marathon, and Raiden). Extracts from the seed coats of EpEp cultivars were 100-fold higher in specific act...

Similar to Arabidopsis thaliana, the wild soybeans (Glycine soja) and many cultivars exhibit indeterminate stem growth specified by the shoot identity gene Dt1, the functional counterpart of Arabidopsis TERMINAL FLOWER1 (TFL1). Mutations in TFL1 and Dt1 both result in the shoot apical meristem (SAM) switching from vegetative to reproductive state to initiate terminal flowering and thus produce ...

Soybean [ Glycine max (L.) Merr] is the legume with largest cultivated area worldwide and its yield depends largely on symbiotic nitrogen fixation root architecture. This study aimed to explore genetic variability of architectural traits di-nitrogen fixing activity in a small collection nine European cultivars belonging same maturity group during their early stages. New image analysis approache...

Abstract The objective of this work was to verify if the introgression AtAREB1 gene in 'LS93-0375' and 'BMX Desafio RR' elite soybean germplasms increases tolerance these plants water deficit. F4 progenies two cultivars transgenic line (BR16-AtAREB1) its background ('BR16') were subjected deficit assays. bioassays performed a greenhouse using following six lines: genetically modified BR16-AtARE...

Soybeans grown under water stress associated with high temperatures during seed maturation and pre-harvest may produce green seed (GS) with expressive reduction in seed quality. The objectives of this study were to evaluate the response of different soybean cultivars grown under these stressful conditions regarding their susceptibility to GS production and to determine the chlorophyll retention...

The ability of benzothiadiazole (BTH) and/or humic acid (HA) used as seed soaking to induce systemic resistance against a pathogenic strain of Fusarium oxysporum was examined in four soybean cultivars under greenhouse conditions. Alone and in combination the inducers were able to protect soybean plants against damping-off and wilt diseases compared with check treatment. These results were confi...

The narrow genetic base of soybean makes cultivar characterization based on morphological descriptors difficult; this characterization is mainly done for registration and protection. Correct characterization of cultivars could be achieved through molecular markers, since the frequencies of each allele in the population are known. Consequently, we developed a molecular characterization method an...

Cordell soybean is a newly released cultivar resistant to Heterodera glycines (SCN) races 3 and 5. The hectarage infested with these races and with other races that can parasitize Cordell in Tennessee is not known. A survey of races in Tennessee soybean fields with sampling weighted by soybean hectarage on a county basis was conducted in 1988. The SCN race plus female development on Bedford and...

PRR-susceptible lines in the absence of PRR (Caviness and Walters, 1971; Singh and Lambert, 1985; Wilcox Herbicide-resistant crops like glyphosate resistant (GR) soybean and St. Martin, 1998). Singh and Lambert (1985) also [Glycine max (L.) Merr.] are gaining acceptance in U.S. cropping systems. Comparisons from cultivar performance trials suggest a yield reported no deleterious pleiotropic eff...

Double inoculation of soybean with Bean pod mottle virus (BPMV), a member of the Genus Comovirus, Family Comoviridae, isolates V-S98-1 and V-S98-15, together with Soybean mosaic virus (SMV) a member of the Genus Potyvirus, Family Potyviridae) isolates 2K-38, S98-51 and S98-52, was compared to single inoculation with each of the isolates, on Hutcheson, Hutcheson Roundup Ready® (RR BC3) and Hutch...