Effects of Different Cultivation Substrates on the Growth and Biomass of Three Dendrobium Species
This study aimed to identify the substrate formulas most suitable for the growth of Dendrobium denneanum Kerr,D.fimbriatum Hook.,and D.loddigesii Rolfe and to provide a theoretical basis and technical guidance for the protection and large-scale production of the three species of Dendrobium.The effects of eight substrate formulations on the growth and biomass of the three Dendrobium species were studied by using one-year-old tissue culture-generated seedlings as experimental materials and sawdust,pine bark,seed shell of Quercus glauca and the seed shell of Vernicia fordii as cultivation substrates.Two modes of single substrate and compound substrate were selected.The results revealed that the T5(Vsawdust∶Vseedshell of Q.glauca=1∶1)substrate is most conducive to the growth of D.denneanum and D.loddigesii,the T4(Vsawdust∶Vseed shell of Q.glauca∶Vshell of V.fordii=1∶1∶1)substrate is most conducive to the growth of D.fimbriatum,and the single cultivation substrates are not conducive to the growth of the three species of Dendrobium.The three Dendrobium species should be based on sawdust,and equal volumes of the seed shells of Q.glauca,the shells of V.fordii,or pine bark should be added.The composite substrate is beneficial for the growth of the three Dendrobium species,but under a single substrate,the growth of these species is poor.This study is the first successful application of the shell of Q.glauca,a shell of V.Fordii,as a substrate in Dendrobium cultivation,which is highly important for the protection and industrial development of Dendrobium plants.
万方数据
维普
