IN VITRO CULTURE RESPONSE OF APICAL AND AXILLARY SHOOT-TIPS EXCISED FROM CRISPHEAD LETTUCE CORES DEPENDS ON HEAD MATURITY, NOT STORAGE TIME

Successful lettuce (Lactuca sativa L.) breeding requires assessment, selection, and rescue of germplasm from field-grown plants during a limited period of time. Tissue culture methods have proved successful in rescuing selected lettuce genotypes and producing seeds in a disease-free environment. The...

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