翻訳と辞書 Words near each other ・ Heterodera bergeniae ・ Heterodera bifenestra ・ Heterodera cacti ・ Heterodera cajani ・ Heterodera canadensis ・ Heterodera cardiolata ・ Heterodera carotae ・ Heterodera ciceri ・ Heterodera cruciferae ・ Heterodera delvii ・ Heterodera elachista ・ Heterodera filipjevi ・ Heterodera gambiensis ・ Heterodera goettingiana ・ Heterodera hordecalis ・ Heterodera humuli ・ Heterodera latipons ・ Heterodera medicaginis ・ Heterodera oryzae ・ Heterodera oryzicola ・ Heterodera rosii ・ Heterodera sacchari ・ Heterodera schachtii ・ Heterodera tabacum ・ Heterodera trifolii ・ Heteroderidae ・ Heteroderinae ・ Heteroderis ・ Heterodermia ・ Heterodiamond Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Heterodera humuli ： ウィキペディア英語版 Heterodera humuli Heterodera humuli is a plant pathogenic nematode, the hop cyst nematode. It is an obligate parasite and infests hop plants, ''Humulus lupulus''. == Description == The female hop cyst nematode is white and lemon-shaped with a body length of 0.3 to 0.7 mm and a width of 0.3 to 0.6 mm. The male is transparent and vermiform with a body length 0.7 to 0.96 mm. The eggs are oval, 0.09 x 0.04 mm and the first two instar larvae are vermiform. The second instar larvae are mobile in damp soil and invade suitable roots. Here they develop further and become sedentary, burying their heads in cells and feeding on the cell sap. The central part of their bodies swells, and after moulting again they develop into bottle-shaped third instar larvae and then thicker lemon-shaped fourth instar larvae. At this stage they either become male or female depending on the food supply. The swollen larval bodies break out of the root and the mobile males travel through the soil while the females remain attached to the root tissues by their heads. After insemination, the females continue feeding and lay eggs. These remain inside the bodies of the females which die and turn into cysts. A single generation lasts 34 to 56 days depending on environmental conditions.〔(AgroAtlas )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Heterodera humuli」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.