基质对石榴扦插育苗的影响

Effect of Substrates on Cutting Propagation of Punica granatum L.

以1年生石榴枝条为试材,选用河沙、育苗基质、壤土、蛭石4种固体基质与营养液、自来水2种液体基质进行扦插育苗试验,研究了不同基质对石榴插穗发芽率、死亡率、芽长等指标的影响以及这些指标随时间的变化情况。结果表明:河沙扦插育苗效果最好,15d石榴苗发芽率可达100.00%,70d生根率达94.86%,芽长、芽鲜质量和干质量、根数及须根发达程度均高于其它基质;育苗基质效果次之;壤土、自来水、蛭石和营养液效果较差。

The pomegranate annual branch were used as test materials,and selected the four kinds of solid substrates,example river sand,nursing substrate,loam soil and vermiculite,and the tow kinds of liquid substrates,example nutrient solution and tap water for cutting propagation test,to study the effects of different substrates on the germination rate,mortality rate,shoot length,and the changes of these indexes with time.The results showed that the river sand was the best substrate,the germination rate could reach 100.00%at 15days,the rooting rate was 94.86%at 70days,and the shoot length,fresh weight and dry weight of shoots,root number and degree of fibrous root development were higher than other substrates.The nursery substrate followed loam soil,vermiculite,tap water and nutrient solution were poor.