Abstract:

Abstract : For overcoming germination problem of triploid watermelon seeds , triploid watermelon were selected as material to study the effect of soaked with different concentrations of salicylic acid (SA) priming to their germination rate and conductivity of seeds lixivium.The results showed that SA at 0.01-1.0mmol﹒L-1 concentration significantly promoted germination and conductivity of seeds lixivium,such as germination energy,germination rate,germination index, vigor index, were increased.The concentration at 0.1mmol﹒L-1 SA treated for 24h showed the best. However,when the concentration of SA went beyond 1.0mmol﹒L-1,the germination seed was inhibitoried.Its each germination target clearly decreased with increasing concentration of SA. The tendency is similar that conductivity of seeds lixivium and germination after soaking with SA.The conductivity of seeds lixivium of change were decreased at lower concentration It is the obvious drop tendency with increasing when the concentration of SA.