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Vegetative multiplication of 'Passe Crassane' pear seedlings was obtained by micropropagation in vitro. Two clones (6 and 14) were selected on the basis of their rooting ability. This article describes optimal culture conditions to obtain a rate of multiplication greater than 6 shoots per month, together with good elongation, no morphological abnormalities, and a high degree of rooting, stable in time and of good quality.

Iris aurantica L is one of the important species that belongs to the family Iridaceae, endemic to Jabal Al `Arab, rhizomatous (with thick, creeping underground stems) [7].