ISHS Acta Horticulturae 660: V International Congress on Artichoke
INFLUENCE OF THE EXPLANT TYPE ON THE PHENOTYPIC CHANGES IN MICROPROPAGATED PLANTS OF ARTICHOKE |
| Authors: | M. Cadinu, A. Repetto, A. Frau, S. Beneventi, S. Meloni |
| Abstract:
Considering the remarkable number of artichoke plants obtained in vitro that go back to a “young” stage with consequent loss of earliness, it was deemed appropriate to test whether this may be affected by the position of the rhizome on the bud from where the explant is taken. Bud explants from the apical, median, and basal parts of the rhizomes of four clones of "Spinoso sardo" artichoke indicated with numbers 24, 33, 49, and 58 were taken. With the material obtained in vitro an experimental plot with a four - replication randomised block was planted. Measurements on the phenotype (shape of leaf) and head (time of emission and number of heads per plant) were made. An examination of the data relating to the incidence of the wild on each clone did not point out any significant differences (Duncan test) as to the origin of the explant for clones 33, 24, and 58. Differences (p = 0,01) between the compared plots (apical, median, and basal) were observed in clone 49; in particular the greatest quantity of wild plants (out of type) was obtained for explants from the basal portion of the rhizome (63%). Concerning the head emission period, clone 33 proved to be the least early ripening of the four considered clones. Of the remaining clones an average of 83% of the plants went into production in the first two harvest weeks. Clone 49 was found to have the highest yield with an average of 9.3 heads per plant. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
