{"id":1389,"date":"2019-05-03T08:05:12","date_gmt":"2019-05-03T01:05:12","guid":{"rendered":"http:\/\/demo.hoinongdanhp.org.vn\/?p=1389"},"modified":"2019-05-03T08:05:12","modified_gmt":"2019-05-03T01:05:12","slug":"dom-la-vi-khuan-hai-rau-cai","status":"publish","type":"post","link":"https:\/\/hoinongdanhp.org.vn\/index.php\/2019\/05\/03\/dom-la-vi-khuan-hai-rau-cai\/","title":{"rendered":"\u0110\u1ed0M L\u00c1 VI KHU\u1ea8N H\u1ea0I RAU C\u1ea2I"},"content":{"rendered":"

\t\t\t\t1. Tri\u1ec7uch\u1ee9ng b\u1ec7nh<\/strong>\nTri\u1ec7u ch\u1ee9ng b\u1ec7nh ph\u1ed5 bi\u1ebfn l\u00e0 v\u1ebft \u0111\u1ed1m tr\u00ean l\u00e1 nh\u01b0ng c\u0169ng c\u00f3 th\u1ec3 c\u1ea3 tr\u00ean l\u00e1 m\u1ea7m, cu\u1ed1ng hoa. R\u1ea5t nhi\u1ec1u v\u1ebft \u0111\u1ed1m nh\u1ecf, ph\u00e2n t\u00e1n r\u1ea3i r\u00e1c tr\u00ean b\u1ec1 m\u1eb7t phi\u1ebfn l\u00e1 ho\u1eb7c \u1edf r\u00eca m\u00e9p l\u00e1 l\u00e0 do s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a vi khu\u1ea9n qua l\u1ed7 kh\u00ed kh\u1ed5ng ho\u1eb7c qua l\u1ed7 th\u1ee7y kh\u1ed5ng.\n\"\"\nV\u1ebft b\u1ec7nh l\u00fac \u0111\u1ea7u nh\u1ecf l\u1ed1m \u0111\u1ed1m, ng\u1eadm n\u01b0\u1edbc nh\u01b0 v\u1ebft \u00fang n\u01b0\u1edbc, v\u1ec1 sau m\u1edf r\u1ed9ng th\u00e0nh v\u1ebft \u0111\u1ed1m tr\u00f2n \u0111\u01b0\u1eddng k\u00ednh kho\u1ea3ng 3mm (c\u00e1 bi\u1ec7t 5mm) chung quang c\u00f3 vi\u1ec1n l\u1ee3t, h\u1eb9p, nh\u00ecn r\u00f5 khi \u0111\u01b0a l\u00e1 l\u00ean \u00e1nh s\u00e1ng \u1edf m\u1eb7t sau.\nC\u00e1c v\u1ebft \u0111\u1ed1m c\u00f3 xu h\u01b0\u1edbng t\u1eadp trung c\u00e0ng nhi\u1ec1u h\u01a1n \u1edf v\u00f9ng g\u1ea7n g\u00e2n l\u1edbn r\u1ed3i li\u00ean k\u1ebft l\u1ea1i v\u1edbi nhau t\u1ea1o th\u00e0nh nh\u1eefng s\u1ecdc ho\u1ea1i t\u1eed d\u1ecdc theo g\u00e2n l\u00e1. M\u00f4 b\u1ec7nh kh\u00f4 ch\u1ebft c\u00f3 th\u1ec3 t\u00e1ch r\u1eddi kh\u1ecfi v\u1ebft \u0111\u1ed1m l\u00e0m cho l\u00e1 c\u00f3 l\u1ed7 th\u1ee7ng l\u1ed7 ch\u1ed7, r\u00e1ch n\u00e1t ho\u1eb7c l\u00e0m cho to\u00e0n b\u1ed9 l\u00e1 suy ki\u1ec7t, r\u01a1i r\u1ee5ng xu\u1ed1ng.\n2. T\u00e1c nh\u00e2n g\u00e2y b\u1ec7nh<\/strong>\nB\u1ec7nh \u0111\u1ed1m l\u00e1 vi khu\u1ea9n tr\u00ean rau c\u1ea3i l\u00e0 do vi khu\u1ea9nXanthomonas campestris g\u00e2y n\u00ean, thu\u1ed9c nh\u00f3m Gram \u00e2m, khu\u1ea9n l\u1ea1c tr\u00f2n, l\u1ed3i, r\u00eca nh\u1eb5n, m\u00e0u v\u00e0ng tr\u00ean m\u00f4i tr\u01b0\u1eddng PDA, YDC. H\u00f3a l\u1ecfng Gelatin, ph\u00e2n h\u1ee7y Protein, t\u1ea1o axit t\u1eeb c\u00e1c \u0111\u01b0\u1eddng Glucose, arabinose v\u00e0manose. Vi khu\u1ea9n thu\u1ed9c nh\u00f3m \u01b0a nhi\u1ec7t trung b\u00ecnh, nhi\u1ec7t \u0111\u1ed9 th\u00edch h\u1ee3p t\u1eeb 25 \u2013 350C,sinh tr\u01b0\u1edfng ch\u1eadm d\u01b0\u1edbi 200C, ng\u1eebng sinh tr\u01b0\u1edfng t\u1eeb 400C tr\u1edfl\u00ean.\n3.\u0110i\u1ec1u ki\u1ec7n ph\u00e1t sinh, ph\u00e1t tri\u1ec3n<\/strong>\nVi khu\u1ea9n t\u1ed3n t\u1ea1i \u1edf trong t\u00e0n d\u01b0 c\u00e2y b\u1ec7nhtr\u00ean \u0111\u1ea5t, nh\u01b0ng kh\u00f4ng th\u1ec3 s\u1ed1ng s\u00f3t \u1edf trong \u0111\u1ea5t sau khi t\u00e0n d\u01b0 c\u00e2y b\u1ec7nh \u0111\u00e3 b\u1ecbph\u00e2n h\u1ee7y. Vi khu\u1ea9n c\u0169ng c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i \u1edf tr\u00ean c\u00e1c c\u00e2y h\u1ecd th\u1eadp t\u1ef1 kh\u00e1c, tr\u00ean c\u1ecf d\u1ea1i v\u00e0 tr\u00ean h\u1ea1t gi\u1ed1ng. Th\u1eddi gian l\u00e1 b\u1ecb \u01b0\u1edbt k\u00e9o d\u00e0i l\u00e0 y\u1ebfu t\u1ed1 ch\u1ee7 y\u1ebfu t\u0103ng c\u01b0\u1eddng s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a b\u1ec7nh. B\u1ec7nh ph\u00e1t tri\u1ec3n trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 kh\u00e1 r\u1ed9ng.\nTh\u1eddi gian c\u00f3 s\u01b0\u01a1ng k\u00e9o d\u00e0i trong th\u1eddi ti\u1ebft l\u1ea1nh ho\u1eb7c c\u00f3 m\u01b0a th\u01b0\u1eddng xuy\u00ean trong th\u1eddi ti\u1ebft n\u00f3ng c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y m\u1ea1nh s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a b\u1ec7nh.\nVi khu\u1ea9n c\u00f3 th\u1ec3 truy\u1ec1n lan t\u1eeb c\u00e2y n\u00e0y sang c\u00e2y kh\u00e1c nh\u1edd m\u01b0a, do con ng\u01b0\u1eddi, d\u1ee5ng c\u1ee5 l\u00e0m vi\u1ec7c tr\u00ean \u0111\u1ed3ng ru\u1ed9ng, va ch\u1ea1m ti\u1ebfp x\u00fac v\u1edbi c\u00e2y khi t\u00e1n l\u00e1 c\u00f2n \u1ea9m \u01b0\u1edbt.\n4. Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb<\/strong>\nLu\u00e2n canh v\u1edbi c\u00e1c c\u00e2y tr\u1ed3ng kh\u00f4ng thu\u1ed9c h\u1ecd th\u1eadp t\u1ef1, \u0111\u1ed1i v\u1edbi v\u00f9ng kh\u00f4ng chuy\u00ean canh rau n\u00ean lu\u00e2n canh v\u1edbi c\u00e2y l\u00faa n\u01b0\u1edbc nh\u1eb1m h\u1ea1n ch\u1ebf ngu\u1ed3n s\u00e2u b\u1ec7nh chuy\u1ec3n ti\u1ebfp.\nD\u00f9ng h\u1ea1t gi\u1ed1ng s\u1ea1ch b\u1ec7nh vi khu\u1ea9n s\u1ea3n xu\u1ea5t \u1edf v\u00f9ng c\u00f3 kh\u00ed h\u1eadu kh\u00f4 khan, kh\u00f4ng t\u01b0\u1edbi n\u01b0\u1edbc qu\u00e1 m\u1ee9c. Tr\u00e1nh l\u00e0m vi\u1ec7c \u1edf ru\u1ed9ng khi t\u00e1n l\u00e1 c\u00f2n \u1ea9m \u01b0\u1edbt.\nS\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i thu\u1ed1c sau \u0111\u1ec3 phun ph\u00f2ng: Kasumin2L,Starner20WP; m\u1ed9t s\u1ed1 lo\u1ea1i thu\u1ed1c c\u00f3 ho\u1ea1t ch\u1ea5t Streptomycin (Kaisin100WP, Acstreptocinsuper 40TB,….)]]>\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"

\t\t\t\t\t\t<\/p>\n","protected":false},"author":1,"featured_media":1390,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[27],"tags":[],"class_list":{"0":"post-1389","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-khoa-hoc-ky-thuat"},"_links":{"self":[{"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/posts\/1389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/comments?post=1389"}],"version-history":[{"count":0,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/posts\/1389\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/media\/1390"}],"wp:attachment":[{"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/media?parent=1389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/categories?post=1389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hoinongdanhp.org.vn\/index.php\/wp-json\/wp\/v2\/tags?post=1389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}