Effect of Auximone and Nitrogen on the Gemmiparous Growing in Tissue Culture for Seedless Watermelon

The experiments were made to determine the optimal concentrations of auxirnones(6-BA,IHA,Ad)and the best ratio of NH4+:N03-for the gemmiparous growing in the tissue culture.The results showed that 6-BA promoted the viviparous growing significantly with the concentration of 0.5～2.0mg/l,IBA affected the bud growth with that of 0.5～1.5mg/l,Ad related to the straight growth with that of 20～80mg/l.Both ammonia and nitrate were necessary with the optimal ratio of 0.2～1.