biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 13:279-289, 1971 | DOI: 10.1007/BF02930914

Changes in the variability of quantitative characters in M2 induced in einkorn wheat by N-nitroso-N-methylurea and X-rays

J. Vagera1
1 Pedagogical Faculty, Palacký University, Olomoue

Changes in the variability of quantitative characters (number of fertile stems, length of the stem and of the spike, number of spikelets in the spike, number of seeds in the spike and in the spikelet) in M2 induced with 0.1 mM, 0.2 mM and 0.3 mM N-nitroso-N-methylurea (MNH) and with 5000r and 10 000 r of X-rays inTriticum monococcum L. var.sofianumKörn. were evaluated. The mean of the populations remained practically unchanged by the mutagens whereas the variability increased considerably with increasing concentration or dose. Changes in the variability were more pronounced in the values for the first stem than in the values for the first three stems. When changes in the population mean were found (with some of the most elevated concentrations and doses), these changes were shown to be mostly due to a repetition of the cultivation, whereas the changes in the variability were mostly due to the action of the mutagens. In all experimental populations, mutations in quantitative characters were successfully induced.

Received: April 10, 1970; Published: September 1, 1971  Show citation

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Vagera, J. (1971). Changes in the variability of quantitative characters in M2 induced in einkorn wheat by N-nitroso-N-methylurea and X-rays. Biologia plantarum, 13(5-6), 279-289. doi: 10.1007/BF02930914
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