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Bibliographic Details
Main Author:	Sandra H. Díaz Solís
Format:	Artículo científico
Language:	es
Published:	Instituto Nacional de Ciencias Agrícolas 2013
Subjects:	Agrociencias arroz variedades rendimiento Oryza sativa radiación solar
Online Access:	https://www.redalyc.org/articulo.oa?id=193227543007
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ANÁLISIS DE LA ESTRUCTURA PRODUCTIVA Y COMPORTAMIENTO DEL RENDIMIENTO DE CUATRO VARIEDADES DE ARROZ (Oryza sativa L.) DE DIFERENTES ORÍGENES EN LA PREFECTURA DE IBARAKI, JAPÓN Sandra H. Díaz Solís Elizabeth Cristo Valdés Rogelio Morejón Rivera Rodolfo Castro Álvarez Masaaki Shiraishi Madduma P. Dhanappala Arai Keisuke Agrociencias arroz variedades rendimiento Oryza sativa radiación solar El estudio se desarrolló en la Parcela Experimental de Investigación (RE1) del Centro Internacional de Tsukuba (TBIC) ubicado en la Prefectura de Ibaraki, Japón, con el objetivo de analizar la estructura productiva y el rendimiento de cuatro variedades de arroz de diferentes orígenes. Los tratamientos corresponden a las variedades J-104, Bluebonnet-50, Suweon-294 y Nipponbare. Se determinó el contenido de materia seca y la intensidad luminosa, además se evaluó el rendimiento y sus componentes y se analizó la relación existente entre el rendimiento y la intensidad luminosa. Se utilizó un análisis de varianza de clasificación simple y la prueba de Rangos Múltiples de Duncan. Los resultados revelaron la existencia de diferencias significativas entre los tratamientos y la variedad índica- japónica Suweon-294 tuvo el mejor comportamiento en el análisis de la estructura productiva, mientras que la variedad índica J-104 alcanzó los mayores rendimientos. La regresión entre las variables estudiadas indica una relación directa. 2013 artículo científico 1819-4087 https://www.redalyc.org/articulo.oa?id=193227543007 es http://www.redalyc.org/revista.oa?id=1932 Cultivos Tropicales application/pdf Instituto Nacional de Ciencias Agrícolas Cultivos Tropicales (Cuba) Num.1 Vol.34

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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