8
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Tolerância de sementes de linhagens de milho à alta temperatura de secagem Translated title: Tolerance of corn lines seeds to high drying temperature

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Cultivares tolerantes a altas temperaturas de secagem proporcionam redução no tempo de secagem, uma etapa crítica no sistema de produção de sementes de milho (Zea mays L.). Nesta pesquisa, foi avaliada a tolerância à alta temperatura de secagem de sementes de linhagens de milho, por meio de testes de germinação e vigor. As sementes foram colhidas manualmente em espigas com teor de água em torno de 35% e secas artificialmente à 45 C até atingirem 11% de teor de água. Em seguida, foram submetidas aos testes de primeira contagem e contagem final de germinação, envelhecimento acelerado, teste de frio sem solo e de condutividade elétrica. Houve diferenças significativas nos valores de germinação e vigor de sementes das diferentes linhagens, sendo então classificadas em tolerantes e intolerantes. Pelos resultados, conclui-se que a sensibilidade das sementes à injúria por secagem à alta temperatura é dependente da linhagem.

          Translated abstract

          High drying temperature tolerant cultivars provide a reduction in the drying period, a critical phase of the corn seeds (Zea mays L.) production system. In this research the tolerance of corn lines seeds to high drying temperature was evaluated by the germination and vigor tests. Seeds were handpicked in ears with water content around 35% and dried artificially at 45ºC up to 11% water content. Then, the seeds were submitted to the first and final germination counting tests, accelerated aging, cold test without soil and electrical conductivity. There were significant differences in the germination and vigor values of seeds from different lines, being classified into tolerant and intolerant. The results permitted to conclude that sensitivity of seeds to high drying temperature injury depends on the lines.

          Related collections

          Most cited references27

          • Record: found
          • Abstract: not found
          • Article: not found

          Regraspara análise de sementes

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Regras para análise de sementes

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Anais...

                Bookmark

                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                cagro
                Ciência e Agrotecnologia
                Ciênc. agrotec.
                Editora da Universidade Federal de Lavras (Lavras )
                1981-1829
                October 2004
                : 28
                : 5
                : 1107-1114
                Affiliations
                [1 ] Universidade Federal de Lavras Brazil
                [2 ] Universidade Federal de Lavras Brazil
                Article
                S1413-70542004000500019
                10.1590/S1413-70542004000500019
                500c6037-844a-40bb-a520-dc46df4b987f

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1413-7054&lng=en
                Categories
                AGRICULTURE, MULTIDISCIPLINARY

                General agriculture
                physiology quality,drying,Seeds,Zea mays,Sementes,qualidade fisiológica,secagem
                General agriculture
                physiology quality, drying, Seeds, Zea mays, Sementes, qualidade fisiológica, secagem

                Comments

                Comment on this article