Sugarbeet Beta vulgaris

Sucrose, commonly known as sugar, has been used as a natural sweetening agent for almost 4000 years. It is isolated from sugarbeet beta vulgaris) in Europe and from sugarcane (Saccharum officinarum) in the tropics. Its total world production in 1994—1995 was 116 million metric tons. 

Geigert J, Stermitz FR, Johnson G, Maag DD, Johnson DK. 1973. Two phytoalexins from sugarbeet (Beta vulgaris) leaves. Tetrahedron 29 2703-2706. 

Post-emergence herbicidal activity of selected compounds including compounds in Table 1.5 and sodium l,l-dimethoxyethyl(methyl)phosphinate 2 (Sect 1.3.1) were evaluated at 2.8 kg ai/ha in a greenhouse against pea (Pisum sativum), white mustard (Sinapis alba), linseed (Linum usitatissimum), ryegrass Lolium perenne), wild oat Avena sativa), sugarbeet Beta vulgaris). 

The herbicidal activity and corp selectivity of IG-21 (code number for development HWS) were further examined at 1,200-50 g ai/ha. IG-21 was tested for postemergence activity against a range of plant species including purslane (Portulaca oleracea), slender amaranth (Amaranthus ascendens), goosefoot (Chenopodium album), spiny amaranth Amaranthus spinosus), sugarbeet Beta vulgaris), maize Zea mays) and rice Oryza sativa). Results are shown in Table 2.50. 

Two known dihydroflavonols, 3-hydroxy-5-methoxy-6,7-methylenedioxyflavanone and 3,5,7,4 -tetrahydroxy-3 -methoxyflavanone, are produced as phytoalexins by sugarbeet roots Beta vulgaris, Chenopodiaceae) when inoculated with Rhizoctonia solani. They had not been previously reported for B. vulgaris ... 

Plant material. All the experiments were conducted using a fourteen day-old sugarbeet callus (Beta vulgaris L., var. altissima). The initiation and culture conditions of this callus have been described elsewhere [8]. This callus is chlorophyllous and grows on basic media supplemented with 2,4-dichlorophenoxyacetic acid (2,4-D 0.1 mg.L i) and benzylaminopurine (BAP 0.1 mg.L ). 

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