{"id":59664,"date":"2007-05-07T00:00:00","date_gmt":"2007-05-07T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/el-control-de-la-polinizacion-cruzada-en-los-ca%c2%adtricos\/"},"modified":"2007-05-07T00:00:00","modified_gmt":"2007-05-07T00:00:00","slug":"el-control-de-la-polinizacion-cruzada-en-los-ca%c2%adtricos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/produccion-de-cultivos\/el-control-de-la-polinizacion-cruzada-en-los-ca%c2%adtricos\/","title":{"rendered":"El control de la polinizaci\u00f3n cruzada en los c\u00edtricos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Carlos Mesejo Conejos <\/strong><\/h2>\n<p>La citricultura espa\u00f1ola est\u00e1 basada en variedades sin semillas, de naturaleza partenoc\u00e1rpica, y de alta calidad para el consumo en fresco. Entre ellas, las naranjas navel y blancas, las mandarinas satsuma y clementina y las mandarinas de origen h\u00edbrido son las m\u00e1s importantes. Cuando las plantaciones  de h\u00edbridos y clementinos se cultivan aisladas, la aparici\u00f3n de semillas es inexistente dado el car\u00e1cter autoincompatible de los dos grupos varietales; sin embargo, cuando las plantaciones est\u00e1n lo suficientemente pr\u00f3ximas como para que las abejas sean capaces de transportar el polen de unas a otras, se produce la polinizaci\u00f3n y fecundaci\u00f3n cruzadas y, con ello, la formaci\u00f3n de semillas. La gran cantidad de \u00e9stas presentes en los frutos los hace comercialmente inviables.    en esta tesis doctoral se estudia el periodo de polinizaci\u00f3n efectiva de los c\u00edtricos, como prerrequisito indispensable para evaluar las posibilidades de fecundaci\u00f3n, y se determina el modo de evitarla bien impidiendo la germinaci\u00f3n del grano de polen, bien interrumpiendo el crecimiento del tubo pol\u00ednico, con una metodolog\u00eda de estudio evolutiva, esto es, identificando en condiciones in vitro algunos gametocidas de utilidad posible, estudiando su eficacia in vivo en flores individuales, y ensayando despu\u00e9s en \u00e1rboles completos, en condiciones de cultivo, su posible utilidad agron\u00f3mica. Se estudia, tambi\u00e9n, modificar el desarrollo del \u00f3vulo para causar su insensibilidad a la polinizaci\u00f3n, y la interrupci\u00f3n del desarrollo del embri\u00f3n, como t\u00e9cnicas alternativas de posible utilizaci\u00f3n. Todo ello con el fin de demostrar la siguiente hip\u00f3tesis de trabajo:  \u00ab\u00bbel impedimento o la interrupci\u00f3n del proceso de la polinizaci\u00f3n, fecundaci\u00f3n o desarrollo del embri\u00f3n, mediante la aplicaci\u00f3n de gametocidas y\/o reguladores del desarrollo, es una t\u00e9cnica agron\u00f3mica eficaz para reducir el n\u00famero de semillas por fruto en plantaciones de c\u00edtricos que se encuentren en condicion<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>El control de la polinizaci\u00f3n cruzada en los c\u00edtricos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 El control de la polinizaci\u00f3n cruzada en los c\u00edtricos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Carlos Mesejo Conejos <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 05\/07\/2007<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Manuel Agusti Fonfria<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: eduardo Primo millo <\/li>\n<li>Mar\u00eda Herrero romero (vocal)<\/li>\n<li>Manuel Tal\u00f3n cubillo (vocal)<\/li>\n<li> Del valle tascon secundino (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Carlos Mesejo Conejos La citricultura espa\u00f1ola est\u00e1 basada en variedades sin semillas, de naturaleza partenoc\u00e1rpica, y de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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