{"id":277,"date":"2014-04-14T19:53:14","date_gmt":"2014-04-14T16:53:14","guid":{"rendered":"http:\/\/sjt.fi.asiakas.woima.eu\/?p=277"},"modified":"2025-11-10T11:32:38","modified_gmt":"2025-11-10T09:32:38","slug":"kukkavarret-ja-villijuurikas","status":"publish","type":"post","link":"https:\/\/www.sjt.fi\/?p=277","title":{"rendered":"Kukkavarret ja villijuurikas"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"277\" class=\"elementor elementor-277\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2f8704f8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2f8704f8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7f67015\" data-id=\"7f67015\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9a56194 elementor-widget elementor-widget-spacer\" data-id=\"9a56194\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2753fe2 elementor-widget elementor-widget-heading\" data-id=\"2753fe2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Kukkavarret ja villijuurikas<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d5fcd81 elementor-widget elementor-widget-spacer\" data-id=\"d5fcd81\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10a49ecb elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"10a49ecb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>Villijuurikas:<\/b>&nbsp;Villijuurikas on esiintyess\u00e4\u00e4n haastava rikkakasvi sokerijuurikaspelloilla. Villijuurikkaita syntyy jos sokerijuurikkaan kukkavarsia ei poista, ja ne ehtiv\u00e4t tuottamaan it\u00e4miskykyisi\u00e4 siemeni\u00e4, joista kasvaa villijuurikkaita seuraavan vuonna. T\u00e4m\u00e4n vuoksi sokerijuurikkaan kukkavarret on poistettava sokerijuurikaspelloilta. Villijuurikkaat erottaa kylvetyist\u00e4 juurikkaista siit\u00e4, ett\u00e4 ne<span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-style: var( --e-global-typography-text-font-style ); font-weight: var( --e-global-typography-text-font-weight ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing ); background-color: var( --e-global-color-b9ecc66 ); font-size: 1rem;\">&nbsp;kasvat my\u00f6s hajallaan riviv\u00e4leiss\u00e4.&nbsp;&nbsp;<\/span><\/p>\n<p><b><span style=\"background-color: var( --e-global-color-b9ecc66 ); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: 1rem; font-style: var( --e-global-typography-text-font-style ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing );\">K<\/span><span style=\"background-color: var( --e-global-color-b9ecc66 ); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: 1rem; font-style: var( --e-global-typography-text-font-style ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing );\">u<\/span><span style=\"background-color: var( --e-global-color-b9ecc66 ); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: 1rem; font-style: var( --e-global-typography-text-font-style ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing );\">kkavarsien muodostus<\/span><\/b><span style=\"background-color: var( --e-global-color-b9ecc66 ); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: 1rem; font-style: var( --e-global-typography-text-font-style ); font-weight: var( --e-global-typography-text-font-weight ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing );\">: Sokerijuurikas on kaksivuotinen kasvi, joka ensimm\u00e4isen\u00e4 vuonna kasvattaa varastojuuren ja toisena tuottaa siemeni\u00e4. Sokerijuurikas voi kuitenkin muodostaa kukkavarren jo ensimm\u00e4isen\u00e4 vuonna (Kuva 1). Herkkyys kukkavarren muodostamiseen sokerijuurikkaalla on geneettist\u00e4, mutta sen lis\u00e4ksi ymp\u00e4rist\u00f6tekij\u00e4t, etenkin alhainen l\u00e4mp\u00f6tila, viritt\u00e4v\u00e4t juurikkaan kukintaan. Esimerkiksi kylm\u00e4 ajanjakso kev\u00e4\u00e4ll\u00e4 kylv\u00f6jen j\u00e4lkeen voi lis\u00e4t\u00e4 kukkavarsien muodostusta my\u00f6hemmin kes\u00e4ll\u00e4.<\/span><\/p>\n<p><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-style: var( --e-global-typography-text-font-style ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing ); background-color: var( --e-global-color-b9ecc66 ); font-size: 1rem;\"><b>K<\/b><\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-style: var( --e-global-typography-text-font-style ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing ); background-color: var( --e-global-color-b9ecc66 ); font-size: 1rem;\"><b>ukkavarsien poisto: <\/b><\/span>Yksitt\u00e4iset kukkavarret on perattava k\u00e4sin joka kasvukausi. Kukkavarsien varalta juurikaspelto on k\u00e4yt\u00e4v\u00e4 l\u00e4pi useamman kerran kes\u00e4n aikana. Kukkavarren muodostanut juurikas voidaan kitke\u00e4 juurineen. Jos t\u00e4m\u00e4 ei onnistu, tulisi kukkavarsi katkaista hiukan maanpinnan alapuolelta, sill\u00e4 muuten kukkavarsi uusiutuu varren tyvell\u00e4 olevista silmuista.<\/p>\n<p>Hyviss\u00e4 ajoin vihre\u00e4n\u00e4 korjatut kukkavarret eiv\u00e4t pudota it\u00e4miskykyisi\u00e4 siemeni\u00e4. Ker\u00e4ttyj\u00e4 kukkavarsia ei kannata j\u00e4tt\u00e4\u00e4 pellolle tuleentumaan ja levitt\u00e4m\u00e4\u00e4n siemeni\u00e4, vaan ne pit\u00e4\u00e4 poistaa pelloilta ja h\u00e4vitt\u00e4\u00e4 asianmukaisesti. Syyskuun alun j\u00e4lkeen muodostuvia kukkavarsia ei tarvitse ker\u00e4t\u00e4 pois, sill\u00e4 kukkavarsiin muodostuvat siemenet eiv\u00e4t ehdi tuleentumaan ennen sadonkorjuuta ja naattien murskausta.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-721e0cb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"721e0cb\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c5c703d\" data-id=\"c5c703d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-208f55d elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"208f55d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-style: var( --e-global-typography-text-font-style ); font-weight: var( --e-global-typography-text-font-weight ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing ); font-size: 1rem; background-color: var( --e-global-color-b9ecc66 );\">V<\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-style: var( --e-global-typography-text-font-style ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing ); font-size: 1rem; background-color: var( --e-global-color-b9ecc66 );\"><b>illijuurikkaiden poisto:<\/b><\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-style: var( --e-global-typography-text-font-style ); font-weight: var( --e-global-typography-text-font-weight ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing ); font-size: 1rem; background-color: var( --e-global-color-b9ecc66 );\"> Villijuurikkaan kohdalla toimintatapa on sama kuin kukkavarsien. Yksitt\u00e4iset villijuurikkaat kannattaa poistaa k\u00e4sin ja jos ne ovat p\u00e4\u00e4sseet<\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-style: var( --e-global-typography-text-font-style ); font-weight: var( --e-global-typography-text-font-weight ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing ); font-size: 1rem; background-color: var( --e-global-color-b9ecc66 );\"> levi\u00e4m\u00e4\u00e4n, suuremmat alueet voi harata ja rivit perata k\u00e4sin.\u00a0<\/span><\/p><p><b>Villijuurikkaiden kemiallinen torjunta:<\/b>\u00a0Tavanomaisten lajikkeiden aiheuttamaa villijuurikasongelmaa voi helpottaa viljelm\u00e4ll\u00e4 Conviso Smart -lajikkeita, sill\u00e4 Conviso One kasvinsuojeluaine tehoaa tavanomaisten lajikkeiden villijuurikkaisiin. Kuitenkin on kiinnitett\u00e4v\u00e4 <b>erityishuomiota Smart lajikkeiden villijuurikkaiden kitkent\u00e4\u00e4n<\/b>, sill\u00e4 ne ovat hyvin hankalia levitess\u00e4\u00e4n ja <span style=\"background-color: var( --e-global-color-b9ecc66 ); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: 1rem; font-style: var( --e-global-typography-text-font-style ); font-weight: var( --e-global-typography-text-font-weight ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing );\">pahasti saastuttamat peltolohkot on parasta ottaa pois juurikkaanviljelyst\u00e4. Viljelykierto helpottaa tilannetta.<\/span><\/p><p><span style=\"background-color: var( --e-global-color-b9ecc66 ); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: 1rem; font-style: var( --e-global-typography-text-font-style ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing );\"><b>K<\/b><\/span><span style=\"background-color: var( --e-global-color-b9ecc66 ); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: 1rem; font-style: var( --e-global-typography-text-font-style ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing );\"><b>ukkavarret ja lajikkeet<\/b><\/span><span style=\"background-color: var( --e-global-color-b9ecc66 ); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: 1rem; font-style: var( --e-global-typography-text-font-style ); font-weight: var( --e-global-typography-text-font-weight ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing );\">:\u00a0<\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-style: var( --e-global-typography-text-font-style ); font-weight: var( --e-global-typography-text-font-weight ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing ); font-size: 1rem; background-color: var( --e-global-color-b9ecc66 );\">Vaikka sokerijuurikkaasta on pyritty jalostamaan pois ominaisuus muodostaa kukkavarsia, sit\u00e4 esiintyy lajikkeissa jonkin verran.\u00a0 <\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-style: var( --e-global-typography-text-font-style ); font-weight: var( --e-global-typography-text-font-weight ); letter-spacing: var( --e-global-typography-text-letter-spacing ); word-spacing: var( --e-global-typography-text-word-spacing ); background-color: var( --e-global-color-b9ecc66 ); font-size: 1rem;\">Suomeen valitaan lajikkeita, joiden kukkavarsiherkkyys on mahdollisimman alhainen. Lajikekokeista seurataan my\u00f6s kukkavarsien muodostusta lajikekohtaisesti.\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d96233f\" data-id=\"d96233f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-17a87b3 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"17a87b3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"683\" height=\"1024\" src=\"https:\/\/www.sjt.fi\/wp-content\/uploads\/2017\/08\/IMG_3740-683x1024.jpg\" class=\"attachment-large size-large wp-image-1820\" alt=\"\" srcset=\"https:\/\/www.sjt.fi\/wp-content\/uploads\/2017\/08\/IMG_3740-683x1024.jpg 683w, https:\/\/www.sjt.fi\/wp-content\/uploads\/2017\/08\/IMG_3740-200x300.jpg 200w, https:\/\/www.sjt.fi\/wp-content\/uploads\/2017\/08\/IMG_3740-768x1152.jpg 768w, https:\/\/www.sjt.fi\/wp-content\/uploads\/2017\/08\/IMG_3740-325x488.jpg 325w\" sizes=\"(max-width: 683px) 100vw, 683px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab659f9 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"ab659f9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Kuva 1. Sokerijuurikkaan muodostama kukkavarsi.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f63efe5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f63efe5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-14a3b54\" data-id=\"14a3b54\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7992320 elementor-widget elementor-widget-spacer\" data-id=\"7992320\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Kukkavarret ja villijuurikas Villijuurikas:&nbsp;Villijuurikas on esiintyess\u00e4\u00e4n haastava rikkakasvi sokerijuurikaspelloilla. Villijuurikkaita syntyy jos sokerijuurikkaan kukkavarsia ei poista, ja ne ehtiv\u00e4t tuottamaan it\u00e4miskykyisi\u00e4 siemeni\u00e4, joista kasvaa villijuurikkaita seuraavan vuonna. T\u00e4m\u00e4n vuoksi sokerijuurikkaan [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[15],"tags":[],"class_list":["post-277","post","type-post","status-publish","format-standard","hentry","category-viljelytekniikka"],"_links":{"self":[{"href":"https:\/\/www.sjt.fi\/index.php?rest_route=\/wp\/v2\/posts\/277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sjt.fi\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sjt.fi\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sjt.fi\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sjt.fi\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=277"}],"version-history":[{"count":15,"href":"https:\/\/www.sjt.fi\/index.php?rest_route=\/wp\/v2\/posts\/277\/revisions"}],"predecessor-version":[{"id":9821,"href":"https:\/\/www.sjt.fi\/index.php?rest_route=\/wp\/v2\/posts\/277\/revisions\/9821"}],"wp:attachment":[{"href":"https:\/\/www.sjt.fi\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sjt.fi\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sjt.fi\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}