Herbivorous insects are characterized by a great diversity of host plant associations, yet, the processes driving host range evolution are not fully understood. When herbivores encounter a novel host, local selection pressures are expected to shape traits that mediate plant–insect interactions. I show that a leafmining fly, Amauromyza flavifrons (Meigen) (Diptera: Agromyzidae), suffers a profou...

Introduction Species of the genus Beta are recognized as sources of various viruses. A con­ siderable number o f viruses have been isolated from the species Beta vulgaris var. saccharifera (sugar beet) (Sutic et al. 1999). One of the viruses occurring in this plant all over the world is beet mosaic potyvirus (BtMV). This virus belongs to Potyviridae, a taxonomic family of easily aphid-transmitt...

We analyzed a metagenome of the bacterial community associated with the taproot of sugar beet (Beta vulgaris L.) in order to investigate the genes involved in plant growth-promoting traits (PGPTs), namely 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, indole acetic acid (IAA), N2 fixation, phosphate solubilization, pyrroloquinoline quinone, siderophores, and plant disease suppression as...

many fungi cause sugar beet root rot during various stages of the plant growth. among them rhizoctonia spp. induce crown rot, dry rot and violet root rot on sugar beet (whitney and duffos,1986). root rot caused by phytophthora drechsleri has been observed in fields with excessive moisture (habibi,1975). pythium aphanidermatum has been recognized as one of the causal agents of sugar beet, dampin...

in this paper price and non- price factors affecting the area of sugar beet cultivation was been studied, using a logarithmic model and a cross sectional data on 195 producers of sugar beet in khorasan province in 2003 producers were selected based on stratified random sampling method. results of study showed that percent of  sugar (an impostor), type of seed, yield of sugar beet in the last ye...

a field experiment was carried out during 2001 in the experimental fields of sugar beet seed institute in karaj. the objective of this study was to determine the response of some quantitative and qualitative traits of three sugar beet lines subjected to continuous water stress and normal conditions. three sugar beet lines 7219-p.69, bp-karaj and 7112 as tolerant, semi tolerant and sensitive to ...

Creating transgenic plants is invaluable for the genetic analysis of sugar beet and will be increasingly important as sugar beet genomic technologies progress. A protocol for Agrobacterium-mediated transformation of sugar beet is described in this chapter. Our protocol is optimized for a sugar beet genotype that performs exceptionally well in tissue culture, including the steps of dedifferentia...

The yield of sugar beet has continuously increased in the past decades. The question arises, whether this progress will continue in the future. A key factor for increasing yield potential of the crop is breeding progress. It was related to a shift in assimilate partitioning in the plant toward more storage carbohydrates (sucrose), whereas structural carbohydrates (leaves, cell wall compounds) u...

The structure and function of the plant microbiome is driven by plant species and prevailing environmental conditions. Effectuated by breeding efforts, modern crops diverge genetically and phenotypically from their wild relatives but little is known about consequences for the associated microbiota. Therefore, we studied bacterial rhizosphere communities associated with the wild beet B. vulgaris...

background and objectives: sugar beet seed plants about five to six weeks after the formation of a seed stem, flowering started and within two weeks, this stage of plant growth will be completed. a significant negative correlation between the temperature received from flowering to seed maturity and the plant reproductive growth period with grain yield shows that the long plant reproductive grow...