不同基质及生长调节剂对越南抱茎茶扦插生根的影响

Effect of Different Substrate and Growth Regulator on the Growth of Cutting Camellia amplexicaulis(Pitard)Cohen Stuart

以越南抱茎茶(Camellia amplexicaulis(Pitard)Cohen Stuart)半木质化枝条为插穗材料进行扦插试验,研究了不同扦插基质、不同生长调节剂对越南抱茎茶扦插生根的影响。结果表明:以基质M1(100%赤红壤)插穗生根质量最好,其生根率、生根数量、根长最大,分别为80.31%、12.90条/穗、5.32cm,其次为M2(赤红壤∶草炭=2∶1),基质M3(赤红壤∶柳糠=2∶1)生根效果最差;5种生长调节剂中以组合型生长调节剂N1(IBA 1 000mg/L+NAA 200mg/L)处理的插穗生根效果最好,生根率和生根数量最大,分别为83.00%、14.00条/穗,N2(IBA1 000mg/L)次之。试验中插穗为愈伤生根型,即切口生根,未发现有皮部生根。

The effect of different substrates, different growth regulators on Camellia ample.Tcicaulis （Pitard） Cohen Stuart cutting seedlings with semi-lignified branches were investigated. The results showed that the effect of Ml （red soil 100%） on Cutting rooting was the best, which had great rooting rate, root number and root length, respectively was 80. 31%, 12. 90 per spike,5.32 cm,followed by M2（red soil ： peat=2 ： 1）,the effect of M% （red soil ： coco coir=2 ： 1） was the worst;the effect of cuttings rooting of NI（IBA 1 000 mg/K＋NAA 200 mg/L） was the best in 5 kinds of growth regulator,which had great rooting rate and root number. Respectively was 83. 00% and 14. 00 per spike,followed by N2 （IBA 1 000 mg/L）. It was the callus rooting cuttings also called the notch root,in the experiment,there was no bark rooting.