Abstract

Rooting of cultivars ‘Passe Crassane’ pear seedlings and ‘Williams’, which is difficult to root by conventional propagation methods, was obtained in vitro. The best exogenous auxin for rooting was naphthalene acetic acid at 0.2 mg/l. Addition of phloroglucinol to the rooting medium did not increase the percentage of shoots forming roots. Rooting percentage in ‘Williams’ was improved with increasing number of subcultures. In vivo rooting under non-sterile conditions was induced after cold storage pretreatment for 1 month followed by immersing for 1 h in auxin solutions.

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