A paid subscription is required for full access. Production of chemical pesticides in China from October to October in metric tons Exclusive Premium Statistic The graph shows the production of chemical pesticides in China from October to October In Octoberaroundmetric tons of chemical pesticides had been produced in China. The import volume of pesticides to China maintained a steady growth and reached over 76 thousand tons in with an import value of over million U.
Top of page Ichinohe first formally described the species from soyabean, Hokkaido, Japan. In the original description a holotype was not designated, but Ichinohe rectified this when he selected one of the syntypes. Previous to Ichinohe's description, the nematode had been known for many years, although under the name of Heterodera schachtii.
There are no synonyms of this species and it has not been synonymized with any other. Description after Burrows and Stone, Morphology typical of the genus.
Body swollen, lemon-shaped with projecting neck containing the oesophagus and part of the oesophageal glands. Body without annulation or lateral incisures, but covered with reticulate ridges. Females white on emergence from the root cortex, turning pale yellow as eggs develop. Gelatinous matrix or egg sac present containing up to eggs.
Head skeleton hexaradiate, stylet slender with posteriorly projecting knobs. Median bulb large and subspherical. Vulva and anus carried on an obtuse cone-shaped projection opposite the neck. Vulva a transverse slit on the vulval cone terminus, surrounded dorsally and ventrally by thin walled crescent-shaped areas, the semifenestrae.
On death, the female body wall tans to form a brown, tough walled cyst. Lemon shaped with protruding neck and vulval cone. Outer cyst wall with a rugose pattern of zigzag lines. Vulval region may be intact on younger cysts, but in older specimens the thin walled cuticle of the terminal region is lost leaving an open fenestra crossed by the vulval bridge bearing the vulval slit and dividing the fenestra into two semifenestrae.
Bullae prominent, elongate, at or just below the level of the well-developed underbridge. Vermiform with short, bluntly rounded tail region. Lateral field with four incisures.
Head offset with annules and strong head skeleton. Stylet robust with knobs laterally to anteriorly projecting. Excretory pore funnel shaped and Dorsal oesophageal gland lobe overlapping intestine ventrally. Spicules strongly developed; gubernaculum present.
Vermiform with four incisures in the lateral field, the incisures reducing to three anteriorly and posteriorly. Head offset with 3 or 4 annules. Labial disc dumb-bell shaped.• Diversity and variety in products offered on the web (footwear, apparel, sporting equipment, etc.) PEST Analysis and SWOT Analysis of China Essay Words | 7 Pages Swot & Pest Analysis on Hotel Industry Words | 10 Pages.
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