Peroxidase activity as a possible test for distinguishing s-plasm from n-plasm in sugar beet (Beta vulgaris L.) |
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Authors: | C M Georgescu D Römer Gh Olteanu |
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Institution: | (1) ICCPT Fundulea, jud. Ilfov, Romania;(2) ICCPT subunit. Brasov, str. Fundaturii 2, Brasov, Romania;(3) ICPC Brasov, str. Fundaturii 2, Brasov, Romania |
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Abstract: | Summary The O-type lines (N-plasm) of sugar beet (Beta vulgaris L.) proved to have a consistently lower peroxidase activity (49.2–62.7%) than their male sterile (MS) equivalents (S-plasm).Similar differences in peroxidase activity (45.4–56.3%) were found when O-type lines were compared with unrelated MS lines. They were also observed in different parts of the plant (cotyledons, hypocotyl + radicle, true leaves) and were reproducible.The fertile lines could be grouped by their level of peroxidase activity in categories of either S-plasm or N-plasm.The peroxidase activity test could be used for selection of N-plasm lines from fertile sugar beet populations and for selection of MS and O-type lines of higher stability. |
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Keywords: | Beta vulgaris sugar beet peroxidase activity male sterility |
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