Effects of Rooting Agent on the Cutting and Seedling Growth of Miscanthus lutarioriparia
To provide a theoretical basis for the large-scale breeding and cultivation of Miscanthus lutarioriparia,the effects of rooting agents with five different concentrations (0,25,50,100 and 200 mg · L-1) on the cutting germination rate,growth rate and seedling growth of Miscanthus lutarioriparia were investigated.The results showed that the germination rates of Miscanthus lutarioriparia soaked in the rooting powder of different concentrations had the change range of 65.55% to 70.00%,but there was no obvious significant difference.The rooting powder played a certain role in promoting vertical growth of Miscanthus lutarioriparia seedlings.The high concentration of rooting powder had certain advantages,the effect varied from time to time.The growth rates of leaf number differed from different times and concentrations of rooting powder.Except thick stems,the rooting agent had big influence on all tested indexes of Miscanthus lutarioriparia such as growth rate,leafing rate,aboveground and underground dry weight,the length of top third leaf.All in all,50 mg · L-1 is the best concentration for the cutting and seedling growth of Miscanthus lutariori paria.