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Correlation between frost tolerance and proline accumulation in winter wheat and heritable improvement of frost tolerance by in vitro selection of hydroxyproline-resistant lines



Correlation between frost tolerance and proline accumulation in winter wheat and heritable improvement of frost tolerance by in vitro selection of hydroxyproline-resistant lines



Nordisk Jordbruksforskning 78(2): 90



There was a significant correlation between free proline content and frost tolerance in leaves of 9 accessions during cold hardening in the field and growth chamber. An attempt was made to improve tolerance by in vitro selection of hydroxyproline (Hyp)-resistant, proline-overproducing lines of the variety Jo3063 (Pitko) with high embryogenic capacity in culture. Of about 6000 embryogenic calluses exposed to 20 mM Hyp, 9 were Hyp-resistant.

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Accession: 002789863

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