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Efectos del desmochado de las plantas de maíz sobre la producción y la composición del grano

Authors: Sánchez Rodríguez, Benito; Dios, Gerardo;

Efectos del desmochado de las plantas de maíz sobre la producción y la composición del grano

Abstract

[ES] En maíces híbridos creciendo en buenas condiciones de fertilidad y con agua suficiente, el desmochado de las plantas dejando una hoja por encima de la espiga da lugar a una disminución de la síntesis orgánica que se traduce en una menor producción de grano y en un descenso de su contenido en proteínas. La disminución en los cinco años de experiencias, osciló entre 8,2 Qm/Ha. y 13,8 Qm/Ha. de grano seco (entre 10,3 por 100 y 16,2 por 100 de la producción de las plantas completas); en relación al contenido proteínico del grano la disminución osciló entre 0,37 por 100 y 0,82 por 100 (entre 3,5 por 100 y 7,9 por 100 menos que en las plantas completas). Cuando se cortó sólo el pendón las diferencias no alcanzaron una probabilidad razonable de significación. Los niveles de P, K, Mg, Ca y S del grano no son afectados por la mutilación en ningún caso.

[EN] When in hybrid corn, grown under good conditions of soil fertility and water supply, was cut the upper part of the plant, just leaving one single leave over the cob insertion point, and as consequence of lessened sinthetical processes, lowest yield of grain and reduced proteinic content of it, were clearly observed. In five years experiences the reduction varies between 8,2 Qm/Ha. and 13,8 Qm/Ha., expressed on dried grain (between 10,3% and 16,2% when refered to the whole plant production); varying the decrease of the proteinic content of the grain, between 0,37%.a nd 0.82 %. When just the tassel was cut the differences observed has not statistical significance. In none of both cases are affected the grain levels of P, K, Mg, Ca and S.

Peer reviewed

Keywords

Zea mays L., Desmochado, Production, Detasseling, Producción

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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