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Variation in the R 3 Generation of CHI-31 Maize Inbred Line after in vitro Regeneration of Immature Embryos

J. LAZÁNYI
Cereal Research Communications
Vol. 16, No. 3/4 (1988), pp. 251-257
Published by: Akadémiai Kiadó
Stable URL: http://www.jstor.org/stable/23782854
Page Count: 7
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Variation in the R
          3
          Generation of CHI-31 Maize Inbred Line after in vitro Regeneration of Immature Embryos
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Abstract

Immature embryos of the maize inbred line CHI-31 were regenerated on N-6 basal medium containing 2,5 μM 2,4 D, and 2470 plantlets were obtained from somatic embryogenesis. The phenotypic variation of 554 somaclones was screened in the R2 generation. Confirmation of their genetic variation for some quantitative traits of agronomic interest was assessed in the R3 generation. Eight sublines showed significant differences in plant height and flowering date as compared to the original maize inbred line CHI-31. The study was aimed at identification of the nature and excent of somaclonal variation and substantiation of its genetic potential for maize improvement.

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