METHOD FOR PRODUCING POTATO SAPLINGS GROWN UP FROM STEM CUTTING FOR GROWING IN LIQUID NUTRITION MEDIUM AND CULTURE BROTH COMPOSITIONS(CHEJU C LIQUID MEDIUM)

摘要

PURPOSE: A method for producing the potato saplings grown up from a stem cutting for growing in a liquid nutrition medium and culture broth compositions(Cheju C liquid medium) are provided for growing a large amount of potatoes without contamination and lowering the cost. CONSTITUTION: A composition(Cheju C liquid medium) for producing the potato saplings grown up from a stem cutting for growing in a liquid nutrition medium consists of KNO3, Ca(NO3)2-4H2O, NH4H2PO4, MgSO4-7H2O, Fe-EDTA, H3BO3, ZnSO4-4H2O, MnSO4-4H2O, CuSO4-5H2O, and (NH4)6Mo7O24. The method for growing potatoes in a liquid nutrition medium comprises the steps of: producing the potato saplings grown up from a stem cutting, examining the presence of virus, transferring 3 to 4 cm virus-free potato saplings into the soil with supplying with only water for 5 days; supplying the potato saplings with the liquid nutrition medium after 5 days of transportation; collecting the grown potato saplings after 10 days; stem cutting the potato saplings; transferring the sapling cuts and remained stem saplings into the soil and supplying with only water for 5 days; supplying the potato saplings with the liquid nutrition medium after 5 days of transportation; and collecting the grown potato saplings after 10 to 15 days of second transportation.