Abstract

G1 tubers of 12 potato clones namely Atlantic (AT), Spunta (SP), Russet Burbank (RB), AT18, AT179, AT192, AT431, KB154, KB165, KB211, SP51 and RB80 were produced from cuttings derived from mother plants under the screen house condition. The in vitro pathogen-tested plantlets of each clone were transplanted into the plastic pots to produce the mother plants for cutting generation. It was found that the survival percentages after transplanting ranged from 33-80%. Cuttings of all clones were planted in the 6 inch plastic pots in the Completely Randomized Design with 3 replications under the screen house condition. The analyses of variances for tuber number per plant, tuber weight per plant and weight per tuber were not significant (P≥0.05). While that for height at 90 days was highly significant (P≤0.01). The mean for tuber weight per plant for AT431 was the highest but not significantly different from those for the other 11 clones. Expected numbers of G1 tubers were produced for all clones except RB80.  

Keywords:  potato improvement, seed potato, mini tuber