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柽柳园林应用前景及其培育技术 总被引:5,自引:0,他引:5
随着城市园林绿化的迅速发展,一些有潜力的观赏树种亟待发掘,以满足城市植物多样性的要求。柽柳枝、叶、花观赏价值高,适应性强,有着广阔的园林应用前景。 相似文献
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红花多枝柽柳引种繁育试验研究 总被引:1,自引:0,他引:1
试验为耐盐碱树种红花多枝柽柳引种繁育试验。从宁夏永宁引种种植于山西大同阳高县,以本地柽柳为对照,进行其适应性、物候及生长量数据调查统计分析;同时,进行苗木两种基质扦插繁育试验,并对其相关数据调查统计分析。结果表明,红花多枝柽柳在山西省大同生长良好并优于当地柽柳,适合引种;水培扦插不仅方便、快捷、省时、省力,而且苗木成活率、生长势都优于普通土壤扦插。 相似文献
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本文在调查了七叶树生长发育规律的基础上,对其生物学特性和栽培技术及园林应用价值作了初步研究。认为提倡城市生态园林树种应具有多样性,推荐七叶树作为江淮之间及江南地区道路园林绿化树种。 相似文献
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白花柽柳的组培与快繁技术 总被引:2,自引:0,他引:2
以白花柽柳的茎段为外植体,进行组织培养和快速繁殖研究。结果表明:以MS培养基添加1.0 mg/L6-BA+0.2 mg/L NAA+0.1 mg/L 2,4-D诱导愈伤组织的效果最好,出愈率达98.4%;以MS培养基添加1.5 mg/L6-BA+0.5 mg/L IBA诱导愈伤组织产生芽的效果最好,出芽率达45.0%。以MS培养基添加1.0 mg/L 6-BA+0.5 mg/L IBA直接诱导产生丛生芽的效果最好,出芽率达98.68%。以1/4 MS培养基诱导生根的效果最好,生根率达93%;以V沙子∶V草炭∶V珍珠岩=1∶1∶1的混合基质有利于试管苗的移栽,成活率达80%。 相似文献
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紫花地丁的栽培技术及其在园林绿化中的应用 总被引:3,自引:0,他引:3
通过对齐齐哈尔地区野生早春植物紫花地丁的调查。发现紫花地丁不仅形态、花色美观。而且分布范围广。适应性、抗逆性强。容易栽培。管理简单。用处广泛。在城市园林绿化中。具有独特的绿化效果。 相似文献
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Ferritin, a universal intracellular protein, can store large amounts of iron and improve plant resistance to abiotic and biotic stress. In this study, a ferritin gene(TaFer) from Tamarix androssowii Litv. was transferred into Populus tomentosa Carr. cv 'BJR01' via Agrobacterium. Six independent transgenic lines were obtained with a tolerance to kanamycin and three were randomly selected for further analysis. The PCR and RT-PCR results indicate that the TaFer gene had been integrated into the poplar genome. The effect of the gene on abiotic stress tolerance was tested, and the results show that transgenic plants improve growth, had higher chlorophyll and lower MDA contents, and higher relative electrical conductivity,fewer changes of SOD and POD activities, higher iron content, higher root ferric reductase activity and lower levels of ROS accumulation and cell death in response to drought, Fe-insufficient or Fe-excess tolerance. These results indicate that the TaFer gene can improve abiotic stress tolerance in transgenic Populus tomentosa. 相似文献
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Larix spp.wood is one of the major fast-growing tree species in China,which also has the most forest storage in the northeast of China.Several key properties modification methods and achievements of Larix spp.wood were summarized based on their characteristics.Technology problems of properties modification and new use prospect of modified Larix spp.wood were all discussed. 相似文献