Studies on the Growth of Spinach Leaves (Spinacea oleracea) |
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Authors: | SAURER, W. POSSINGHAM, J. V. |
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Abstract: | The growth of spinach leaves has been studied from approximately1 cm long to full size. Over-all growth was measured in termsof area and total number of cells. The differential growth ofleaves was measured by the changes in the shape of squares drawnon the leaf surface. Growth differentials in terms of numbersof cells and number displaying mitotic figures were measuredin leaf discs taken from different positions within leaves. It was found that cell division in spinach leaves continueduntil the leaves reach from one-third to one-half full size.Cell division within the lamina of the leaves was not uniformbut ceased at an early stage of development in the leaf tipregion and continued for an extended period at the base. |
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