Breeding for high yielding potatoes with crosses of tetraploid FDR (First Division Restitution) clones
1982
Kim, H.Y. (Dongkuk Univ., Seoul (Korea R.). Coll. of Agriculture)
Progenies of the crosses of tetraploids and diploid FDR (First Division Restitution) clones were compared for true potato seed cultivation methods. Correlations were not observed for the tuber production between true potato seed and tuber cultivation methods. True seed obtained by open pollination of tetraploid clones and F1 seeds obtained by crosses of tetraploid x FDR clones were cultivated in fall and spring. Total tuber production were higher in fall or in spring on the parents, however, marketable tubers (above 50 grams) were produced more in fall than in spring in all lines. Cross pollinated F1 progenies were superior in the tuber production than the open pollinated progenies. This indicated that heterosis by genetic diversity was important in the true potato seed production
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