Abstract

Potato crops occupy high rank among different agricultural crops as per its production and consumption despite its propagation high cost by tubers due to the rising of its import quotation. Thus a lot of attempts were done to propagate it vegetatively in order remain its genotype constant. For this purpose, two experiments were independently carried out, the first one was in Sana’a-Yemen by using perlite medium and the other one was in Mitem, Ibb governorate by using sand medium, both were under plastic tunnel conditions, in April during summer agriculture season. The aim of this research was to study the effect of different concentrations (0, 150, 300, 450 and 600 ppm) of indole butyric acid (IBA) and three types of cuttings (terminal, medium and basal) on rooting and growth of potato cuttings. The result showed that IBA at 450ppm recorded the best values for all studied parameters in perlite medium. Terminal cutting gave the highest values for all investigated parameters irrespective of cutting type. Interaction between IBA at 450ppm and terminal cuttings was the best significantly at all studied parameters. Almost all results by the use of sand medium with the three types of cuttings and IBA with its determined concentrations were similar to those produced by perlite medium in general. This investigation demonstrated the probability of propagation of potato crops vegetatively by using stem cutting.