Survival and fecundity of Colorado potato beetle adults, Leptinotarsa decemlineata (Say), that had or had not fed previously on non-transgenic potato before exposure to transgenic potato containing the Bacillus thuringiensis subsp. tenebrionis Cry3A toxin (Bt) was investigated. In the laboratory, < 5% of first-generation adults survived after two weeks when restricted to Bt foliage since eclosi...

fusarium oxysporum f. sp. albedinis (foa) is a soil borne fungus causing the most serious disease of date palm (phoenix dactylifera l.) called “bayoud”. in the present study, five medicinal plants from the algerian sahara (southwest of algeria): limoniastrum feei (aerial part, roots), launeae arborescens (batt.) murb. (aerial part, roots), fredolia aretioides moq. et coss. (aerial part, roots),...

Potato has become one of the primary cash crops in the arid region of the Loess Plateau. However, what and how cereal crops to rotate with potato is better for the farmer’s income and environment is unclear now. 11 potato based rotation systems were simulated in Yulin, using EPIC model based on local information. Results showed 1) Though mean potato yield decreased from 6.84 to 5.38 t/hm, the m...

Abstract The article describes the device and technological process of operation a potato planter equipped with disk designed for use in low-contour areas. results experimental studies to determine quality indicators its work field are also presented. authors propose which is simple design compact, less metal-intensive, easy manufacture, has ability it both small-circuit relatively large areas,...

Rhizoctonia stem canker and black scurf. Rhizoctonia diseases of potato are caused.Black scurf on a potato tuber caused by Rhizoctonia solani. Rhizoctonia potato disease is an important constraint to potato production. The disease.ISBN 978-952-10-5475-4 PDF http:ethesis.helsinki.fi. 2 Variation of biological traits in Rhizoctonia solani isolated from potato. Abstract Rhizoctonia solani is an im...

abstract   background: far lateral discal herniation is an uncommon disorder and is difficult to assess by physical examination alone. this study is designed to define clinical and epidemiological findings and to establish the indications of surgical and medical treatment for flldh.   methods: between 2000 and 2005, a total of 2035 patients with lumbar disc herniation underwent surgical discect...

Chemical investigation of the ethyl acetate extract of the endophytic fungus Penicillium thiomii isolated from the medicinal plant Terminalia chebula Retz and cultured on potato dextrose agar led to the isolation of one new compound named terminatone (2) along with three known compounds namely, ergosterol (1), 4-hydroxy benzaldehyde (3) and 4-hydroxy-hexadec-6-enoic acid methyl ester (4). The s...

A series of mono-, di- and triorganotin compounds with general formulae [RSnL(2)Cl], R = Bu (compound 3), [R(2)SnL(2)], where R = Me, Et, Bu, Oct (compounds 1, 2, 4 and 6) and [R(3)SnL], where R = Bu, Cy and Ph (compounds 5, 7 and 8) and where L = 3,4-methylenedioxy-6-nitrophenylpropenoic acid have been prepared and characterized by elemental analysis, multinuclear ((1)H-, (13)C- and (119)Sn-) ...

Insect antifeeding substances contained in plant leaves were widely surveyed by monitoring with 'leaf-disc test'. Larvae of tobacco cutworm, Spodoptera litura F., were mainly the test insects and leaves of sweet potato, Ipomoea batatas Lamark var. edulis Makino, the insect baits. Leaves of Cocculus trilobus DC, Parabenzoin trilobum Nakai (= Lindera triloba Blume), Orixa japonica Thunberg, Clero...