{"id":404514,"date":"2019-08-19T06:46:53","date_gmt":"2019-08-19T04:46:53","guid":{"rendered":"https:\/\/hudo.com\/si\/2019\/08\/19\/znanstveniki-nasli-nacin-kako-v-susnih-podrocjih-uspesno-gojiti-rastline\/"},"modified":"2019-08-19T06:46:53","modified_gmt":"2019-08-19T04:46:53","slug":"znanstveniki-nasli-nacin-kako-v-susnih-podrocjih-uspesno-gojiti-rastline","status":"publish","type":"post","link":"https:\/\/hudo.com\/si\/lifestyle\/znanstveniki-nasli-nacin-kako-v-susnih-podrocjih-uspesno-gojiti-rastline\/","title":{"rendered":"Znanstveniki na\u0161li na\u010din, kako v su\u0161nih podro\u010djih uspe\u0161no gojiti rastline"},"content":{"rendered":"<figure>\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"660\" height=\"320\" src=\"image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" \/><figcaption>Znanstveniki i\u0161\u010dejo na\u010din, kako rastline spodbuditi k tvorjenju \u010dimbolj globokega koreninskega sistema (foto:Profimedia)<\/figcaption><\/figure>\n<p>Medtem ko se glavna korenina pri rasti praviloma usmeri razmeroma naravnost navzdol, stranske korenine temu t.i. gravitropizmu ne sledijo vedno. Pogosto si prizadevajo rasti veliko bolj v horizontalno smer.<\/p>\n<h2>Smer rasti korenin dolo\u010dajo hormoni<\/h2>\n<p>Mednarodna skupina znanstvenikov z dunajske univerze je zdaj ugotovila, da na smer rasti korenin vpliva medsebojno delovanje dveh rastlinskih hormonov: avksina in citokinina, je poro\u010dala avstrijska tiskovna agencija APA. Avksin je odgovoren za rast v globino, citokinin pa za horizontalno usmerjenost korenin.<\/p>\n<p>Na vr\u0161i\u010dku korenine je nekaj celic, ki odlo\u010dajo o tem, koliko avksina bo poslanega v spodnji koreninski del. \u010ce je koli\u010dina avksina velika, to spro\u017ei rast glavne korenine navpi\u010dno navzdol. Za stranske korenine pa je zna\u010dilen rastlinski hormon citokinin, ki jim daje lastnost vodoravnega \u0161irjenja. Znanstveniki z Dunaja so zdaj na celi\u010dni ravni opisali, kako bi lahko okrepili delovanje avksina v vr\u0161i\u010dkih stranskih korenin.<\/p>\n<h2>Globoke korenine bi dosegle\u00a0podzemne vode<\/h2>\n<p>Avtorji raziskave, ki so svoja dognanja objavili v strokovni reviji Nature Communications, menijo, da je mogo\u010de prek tega mehanizma mo\u010dno vplivati na koreninski sistem rastline. Tako bi bilo lahko denimo mogo\u010de rastline spodbuditi k temu, da bi njihove korenine rasle bolj v globino. Na ta na\u010din bi lahko prodrle v z vodo bogate zemeljske plasti.<\/p>\n<p>Na \u0161tevilnih obmo\u010djih po svetu je zgornji sloj zemlje ve\u010dinoma preve\u010d suh, da bi lahko gojili dolo\u010dene kulturne rastline. Edini mo\u017eni ukrep je trenutno drago zalivanje. Drago zato, ker je povezano s stalnim izhlapevanjem vode na povr\u0161ini.<\/p>\n<p>Dognanja znanstvenikov o koreninskih sistemih pa bi lahko pripomogla tudi k zmanj\u0161anju konkurence med polj\u0161\u010dinami v tleh po vsem svetu: koreninski sistemi, ki rastejo prete\u017eno v globini, namre\u010d v manj\u0161i meri prihajajo v stik s sosedi. To pa bi lahko zmanj\u0161alo potrebno sadilno razdaljo med posameznimi polj\u0161\u010dinami ter pove\u010dalo pridelek na hektar.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Znanstveniki z Univerze za naravne vire na Dunaju so v rastlinskih hormonih na\u0161li klju\u010d, ki odlo\u010da o tem, ali bo korenina rastlin pri svoji rasti sledila gravitaciji ali pa se bo usmerila v kak\u0161no drugo smer. Te ugotovitve bi lahko v prihodnje pomagale usmerjati rast rastlin in jim omogo\u010diti pre\u017eivetje v su\u0161i.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1091],"tags":[5117,1645],"source":[1522,1518,1552],"supertag":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Znanstveniki na\u0161li na\u010din, kako v su\u0161nih podro\u010djih uspe\u0161no gojiti rastline - Hudo Slovenija<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hudo.com\/si\/lifestyle\/znanstveniki-nasli-nacin-kako-v-susnih-podrocjih-uspesno-gojiti-rastline\/\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Znanstveniki na\u0161li na\u010din, kako v su\u0161nih podro\u010djih uspe\u0161no gojiti rastline - Hudo Slovenija\" \/>\n<meta property=\"og:description\" content=\"Znanstveniki z Univerze za naravne vire na Dunaju so v rastlinskih hormonih na\u0161li klju\u010d, ki odlo\u010da o tem, ali bo korenina rastlin pri svoji rasti sledila gravitaciji ali pa se bo usmerila v kak\u0161no drugo smer. Te ugotovitve bi lahko v prihodnje pomagale usmerjati rast rastlin in jim omogo\u010diti pre\u017eivetje v su\u0161i.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hudo.com\/si\/lifestyle\/znanstveniki-nasli-nacin-kako-v-susnih-podrocjih-uspesno-gojiti-rastline\/\" \/>\n<meta property=\"og:site_name\" content=\"Hudo Slovenija\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/hudo.si\" \/>\n<meta property=\"article:published_time\" content=\"2019-08-19T04:46:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hudo.com\/si\/wp-content\/uploads\/sites\/2\/2019\/08\/profimedia-0136091478.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1250\" \/>\n\t<meta property=\"og:image:height\" content=\"833\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"hudo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@hudo_si\" \/>\n<meta name=\"twitter:site\" content=\"@hudo_si\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"hudo\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuti\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/hudo.com\/si\/lifestyle\/znanstveniki-nasli-nacin-kako-v-susnih-podrocjih-uspesno-gojiti-rastline\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/hudo.com\/si\/lifestyle\/znanstveniki-nasli-nacin-kako-v-susnih-podrocjih-uspesno-gojiti-rastline\/\"},\"author\":{\"name\":\"hudo\",\"@id\":\"https:\/\/hudo.com\/si\/#\/schema\/person\/601cf3379633985b20f7e50f2bb47707\"},\"headline\":\"Znanstveniki na\u0161li na\u010din, kako v su\u0161nih podro\u010djih uspe\u0161no gojiti rastline\",\"datePublished\":\"2019-08-19T04:46:53+00:00\",\"dateModified\":\"2019-08-19T04:46:53+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/hudo.com\/si\/lifestyle\/znanstveniki-nasli-nacin-kako-v-susnih-podrocjih-uspesno-gojiti-rastline\/\"},\"wordCount\":350,\"publisher\":{\"@id\":\"https:\/\/hudo.com\/si\/#organization\"},\"keywords\":[\"rastline\",\"znanstvene zanimivosti\"],\"articleSection\":[\"Lifestyle\"],\"inLanguage\":\"sl-SI\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/hudo.com\/si\/lifestyle\/znanstveniki-nasli-nacin-kako-v-susnih-podrocjih-uspesno-gojiti-rastline\/\",\"url\":\"https:\/\/hudo.com\/si\/lifestyle\/znanstveniki-nasli-nacin-kako-v-susnih-podrocjih-uspesno-gojiti-rastline\/\",\"name\":\"Znanstveniki na\u0161li na\u010din, kako v su\u0161nih podro\u010djih uspe\u0161no gojiti rastline - 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