Proceedings Volume 2010 (format .pdf) - SimpBTH

If biological material influences the results are very significant forChristian and Roclas (table 6).Table 6 .Biological material influence on the number of tubers derived from experienceexpanded clay (NIRPSB Brasov, 2009)Biological material Average number of Difference Significancetubers obtained+/-No. %minitubers 8,1266 100,00 - -plantlets 7,0633 86,91 -1,0633 oooDLb 5% =0,3595 tub. DLb 1% =0,5170tub. DLb 0,1% =0,7604tub.Analyzing the combined influence of the cultivar and biological materialused for planting (table 7) it’s observed that the biological material plantlets bycomparison with minitubers the results for every cultivar are either insignificantor negative significant but nevertheless may indicate that Roclas and Christiancultivars were able to very significant results by comparing two biologicalmaterial between them.Table 7. Cultivar and biological material influence on the number of tubers derived fromexperience expanded clay (NIRPSB Brasov, 2009)Cultivar Ostara Christian Roclas Dif.BiologicalmaterialNo. Dif.+/-Sign.No. Dif+/-Sign.No. Dif +/-Sign.a2-a1a3-a1minitubers 6,94 - 8,06 - 9,38 - +1,12 +2,44plantulets 6,38 -0,56nsDLa 5% =0,6226 tub.DLa 1% =0,8953 tub.DLa 0,1% =1,3168tub.6,56 -1,50ooo* ***8,25 -1,13 +0,18 +1,87oo ns ***DLb 5% =0,7890 tub.DLb 1% =1,1345 tub.DLb 0,1% =1,6686 tub.a3-a2+1,32**+1,69***3. CONCLUSIONSNumber of minitubers produced per plant, varied depending on thecultivar, the substrate used and the biological material used for planting.Minitubers largest number is obtained at Roclas cultivar (8.81 minitubers)on clay substrate and the lowest number is obtained from Ostara (3.92 minitubers /plant) on soil, used as control.75