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handle: 10261/89822
[ES]Se estudian las relaciones entre el crecimiento vegetativo en diferentes épocas del ciclo y la producción de fruto de la planta de fresa: estas relaciones corresponden a dos experimentos de invernadero, en los que se emplean dosis variables de nitrógeno y de potasio. En general, existe relación directa entre el crecimiento vegetativo y el reproductivo, si bien se dan condiciones de nutrición por exceso para las que el aumento del crecimiento vegetativo no coincide con incremento de la producción de fruto. El número de inflorescencias y flores está relacionado directamente con el número de hojas y su peso total, mientras que el porcentaje de fructificación lo está principalmente con el desarrollo de la corona y de la raíz. Para las plantas de menor tamaño que dan producciones elevadas, la expansión de las hojas, así como el desarrollo de la corona y de la raíz experimentan una reducción durante la fructificación, que sigue manifestándose, en algunos caos, en la postmaduración.
[EN]The relationships between vegetative growth at various times and fruit yield in the strawberry plant are studied; these relationships correspond to two glasshouse experiments in which several levels of nitrogen and potassium are used. In general, there exists a direct relationships between reproductive and vegetative growth, although conditions of nutrient excess are given which an increase in vegetative growth is not accompanied by an increase in fruit yield: The numbers of inflorescences and flowers are directly related to the number and total weight of leaves while the percentage fruit set is mainly related to the development of the crown and the root. In the smaller sized plants producing high yields, leaf expansion as well as crown and root development experience a reduction during fruiting, which in some cases in still shown after fruit ripering
8 páginas, 3 figuras
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