Integral tèrmica acumulada per al blat de moro a Catalunya Authors Antoni Maria Verdú Lluís Bosch i Roura Fernando Nuez Viñals Francesc Casañas Artigas E. Sánchez Abstract The advantatges of accumulated heat units compared with FAO cycles for measuring maize cycle are discussed. From the evaluation of the different proposals for heat units calculation it is concluded that the NOAA (National Ocean and Atmospheric Administration, USA) method is the most suitable for our country. Original information on accumulated heat units, average of several years, is given for the zones of Catalunya where maize is a major crop. Several practical examples are exposed to show how to handle heat units to choose the best hybrids depending on planting date and use of the crop (grain or forage). Finally, commercial firms are requested to provide complemetary information on accumulated heat units required till different development stages (40 %, 35 %, 30 % grain moisture, for example) of their hybrids. Downloads Download data is not yet available. Downloads Text complet (Català) Published 2005-12-19 Issue No. 14: desembre 1991 Section Articles License The intellectual property of articles belongs to the respective authors. On submitting articles for publication to the journal QUADERNS AGRARIS, authors accept the following terms: Authors assign to ICEA (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to QUADERNS AGRARIS.Authors answer to ICEA for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.ICEA declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at http://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.The journal QUADERNS AGRARIS is not responsible for the ideas and opinions expressed by the authors of the published articles.