RHYTHMIC GROWTH AND OPTIMIZATION OF MICROPROPAGATION - THE EFFECT OF EXCISION TIME AND POSITION OF AXILLARY BUDS ON IN-VITRO CULTURE OF CITRUS-AURANTIUM L

We wanted to ask whether the rhythmic pattern of shoot elongation shou ld be taken into account for the micropropagation of Citrus aurantium L. and whether in vitro culture altered the rhythmic properties. It ha s been established in the present work that (1)where and when the axil lary buds are excised with respect to the elongation cycle are of impo rtance to optimize micropropagation and (2) the infradian rhythmic gro wth pattern of micropropagated plants is maintained with a period of 4 5.8 d not significantly different from that of plants derived from see ds (42.4 d). (C) 1996 Annals of Botany Company