objective: flowering time (ft) in cereals controlled by genes that had a main factor on plant development. methods: genetic and phenotypic diversity of four flowering time genes (ft2, ft3, ft4, ppd-h1) in 19 genotypes of cultivated and wild barley was evaluated and a total of 107 alleles were amplified. genotypes based on days to flowering time and molecular data were grouped into early, middle...

characterized (Koornneef et al. 1991, 1998b, Lee et al, 1993, Araki and Komeda 1993, Clarke and Dean 1994, Clarke et al. 1995, Eimert et al. 1995, Zagotta et al. 1992, Sung et al. 1992, Martinez-Zapater et al. 1994, Sanda and Amasino 1996a, Amasino 1996, Levy and Dean 1998). Although they caused similar mutant phenotypes, diflbrent late-flowering mutants characterized responded to environmental...

Fertilizer was applied annually for eight years to individual ramets in a loblolly pine (Pinus taeda L.) seed orchard at rates ranging from 0 to 448 kg nitrogen (N) ha(-1) year(-1). Clonal effects accounted for a major source of variation in both flowering and foliar nutrient concentrations. Foliar N concentrations were generally correlated with the intensity of fertilizer application, but were...

A new multiresidue method is described for the determination of pesticides in honey. The method involves dissolution of the honey in a methanol-water mixture, followed by solid-phase extraction cleanup and gas chromatographic determination. Twenty-six pesticides used on flowering field crops, on flowering fruit and vegetables, or as acaricides to control Varroa jacobsoni in beehives are determi...

A latitudinal cline in flowering time in accessions of Arabidopsis thaliana has been widely predicted because the environmental cues that promote flowering vary systematically with latitude, but evidence for such clines has been lacking. Here, we report evidence of a significant latitudinal cline in flowering time among 70 Northern European and Mediterranean ecotypes when grown under ecological...

A field experiment was conducted during rainy (kharif) season of 2018 and 2019 at the research farm Tamil Nadu Rice Research Institute, Aduthurai, to evaluate impact drip irrigation on rice (Oryza sativa L.) growth, productivity water use efficiency. The experiments were laid out in a strip plot design with 4 varieties/hybrids horizontal 6 regimes vertical 3 replications. findings reveal that 1...

The solanaceous group of vegetables (tomato, eggplant, chili and bell peppers) generally take up large amounts of nutrients. The amount of nutrients they take up depends on the quantity of fruit and dry matter they produce, which in turn is influenced by a number of genetic and environmental variables. For tomato to produce 1 mt of fresh fruit, plants need to absorb, on average, 2.5 to 3 kg N, ...

Background and Objective: The medicinal plant Origanum vulgare. subsp. vulgare in the Lamiaceae family has been widely used by Iranian people for the treatment of respiratory, gastrointestinal and neurologic disorders. The present study was carried out to evaluate possible anxiolytic effects of aqueous extract of O. vulgare leaves and the flowering branches in rats.Materials and Methods: Anxiol...