摘 要
本试验以矮溲疏(Deatzia ‘hybrida Boule’ )不同枝段位当年生新梢为试材,用不同生长激素进行处理。研究了不同段新梢及生长素对矮溲疏扦插繁殖效果的影响。试验采用随机区组设计,重复3次,以清水为对照。对插条成活率,抽生新梢数、新梢总生长量及新梢鲜重,总生根数量、根系鲜重等指标进行了测定分析。结果表明:不同段位新梢扦插成活率差异不显著,但中基部插条繁殖的扦插苗质量较好,其新梢、根系发育显著好于梢段插条,因此在进行矮溲疏新梢扦插繁殖时以中基部段位为好。矮溲疏插条经生长素处理,其扦插成活率与CK相比,插条成活率差异不显著,但生长素对扦插苗根系及新稍生长发育有良好的促进作用,成苗质量较高。其中以1000mg.L-1的吲哚丁酸(IBA)效果较好
关键词:矮溲疏;生长素;枝段;扦插繁殖
Abstract
Effect of auxins(1000mg.l-1 IBA, 1000mg.l-1 NAA,1000mg.l-1 rooting powder)on cutting propagation of different one year old shoot section of Scabrous Deutzia (Deutzia scabra) was studied in the experiment, which was arranged as randomized blocks design, three replicates, water as CK. Indexes investigated were survival rate ,root number, shoot number, length of root and shoot, and the quantities which the fresh of both the root and shoot. The results showed that there were no significant of different shoot section. But cutting from bottom shoots would be better in quality, and of which the shoot and root develepment were significantly better than upper shoots, so the cuttings from middle and bottom shoots would be benefit to the propagation of Scabrous Deutzia. There were no significant different between auxin treatment and CK in the respect of cutting survival rate, but root and shoot development were improved by application of auxins, cutting plants have high quality. And 1000mgl-1IBAtreatment was the best.
Key words:Scabrous Deutzia;auxin;shoot section;cutting propagation
目录
摘 要 1
Abstract 1
引言 3
1 材料和方法 3
1.1 材料准备 3
1.2 试验方案及处理方法 3
1.3 试验指标测定 4
2 结果与分析 4
2.1 不同枝段及生长素处理对矮溲疏扦插成活率的影响。 4
CK 5
2.2 不同枝段及生长素处理对矮溲疏扦插苗根系生长发育的影响 5
2.3 不同枝段及生长素处理对矮溲疏插条新梢生长发育的影响 6
3讨论与小结 7
3.1 讨论 7
3.2 小结 8
引言
矮溲疏(Deatzia ‘hybrida Boule') 虎耳草科溲疏属落叶小灌木。小枝中空,红褐色。叶对生,长椭圆状披针形,两面被稀毛,边缘齿状。花白色,花期5月-6月。矮溲疏,冠幅50公分左右,高0.7米以上。喜光、稍耐阴。喜温暖、湿润环境、较耐寒、耐旱,对土壤的要求不严,喜富含腐殖质,PH值6~8的土壤。性强健,萌芽力强,耐修剪。宜植于草坪、山坡、路旁及林缘和岩石园,也可作花篱栽植。具有优良的绿化及观赏价值,是近些年应用的新型木本地被植物。

您当前的位置:
