BO’RTMA NEMATODALAR (Meloidogyne) \u2014 o’simliklarda parazitlik qiluvchi nematodalar oilasi. Erkagi ipsimon, uzunligi 1,2\u20141,9 millimetr, urg’ochisi noksimon, uzunligi 0,8\u20141 millimetr. Turli o’simliklarning yer ostki qismida parazitlik qilib, shish (bo’rtma) paydo qiladi. Poliz (qovun, qovoq, tarvuz), sabzavot (kartoshka, bodring, pomidor, sabzi), texnika ekinlari (kanop, ayrim joylarda g’o’za) ni ayniqsa kuchli zararlaydi. Urg’ochi nematodalar maxsus tuxum xaltasi (ooteka)ga yil davomida bir necha yuztadan 2000 gacha tuxum qo’yadi. Tuxumdan lichinkalar tuproqqa chiqib, yosh ildizlarga kirib oladi. Bo\u2019rtma nematodalar ta’sirida o’simlikning nematodalar bilan zararlangan joyida diametri 4 millimetrdan bir necha santimetr (ba’zan 25-30 santimetr) gacha bo’lgan bo’rtmalar paydo bo’ladi. Zararlangan o’simliklarning o’sishi va rivojlanishi sekinlashadi, issiq yoz paytlari so’linqirab turadi yoki butunlay qurib qoladi. Bo\u2019rtma nematodalarning yer yuzida 60 dan ortiq turi, shu jumladan O’zbekistonda 5 turi (Janub, Yavan, araxis, g’o’za, shimol Bo\u2019rtma nematodalar) ekinlarga ziyon keltiradi. Kurash choralari: tuproqni haydab oftob taftida quritish, Bo\u2019rtma nematodalarga chidamli ekin navlarini ekish, almashlab ekish, tuproqni oftob taftida quritish, issiqxonalarda tuproqni bug’lash.<\/p>\n","protected":false},"excerpt":{"rendered":"
BO’RTMA NEMATODALAR (Meloidogyne) \u2014 o’simliklarda parazitlik qiluvchi nematodalar oilasi. Erkagi ipsimon, uzunligi 1,2\u20141,9 millimetr, urg’ochisi noksimon, uzunligi 0,8\u20141 millimetr. Turli o’simliklarning yer ostki qismida parazitlik qilib, shish (bo’rtma) paydo qiladi. … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":16402,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-19417","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-b-harfi","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"kr","enabled_languages":["uz","kr","ru"],"languages":{"uz":{"title":true,"content":true,"excerpt":false},"kr":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts\/19417","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/comments?post=19417"}],"version-history":[{"count":1,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts\/19417\/revisions"}],"predecessor-version":[{"id":19422,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts\/19417\/revisions\/19422"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/media\/16402"}],"wp:attachment":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/media?parent=19417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/categories?post=19417"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/tags?post=19417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}