Wild Ornamental Plant Resources and Their Application to City Gardening in Hainan Province

This paper deals with the wild ornamental plant resources which are suitable for the application to gardening in Hainan Province and with the significance and the influencing factors in the application and extension of these resources to gardening. The strategies for the application of the wild ornamental plant resources have been established as the result of this research.

Functions and Application of Ornamental Aromatic Plants in Garden Landscaping

The application history of ornamental aromatic plants in garden landscaping both in China and abroad is introduced as well as their function and categories.The application form of the ornamental aromatic plants in garden landscaping is analyzed,and the application prospect is put forward.

Effect of LaCl_3 on Resistance and Absorptive Capacity to Formaldehyde of Indoor Ornamental Plants under Formaldehyde Stress

[Objective] This study aimed to determine the effect of rare earth biological regulator LaCl3 on the absorptive capacity to formaldehyde of four indoor ornamental plants, and to screen out the plant whose absorptive capacity to formaldehyde can be increased most greatly by LaCl3. [Method] Effect of LaCl3 on absorptive capacity to formaldehyde of four indoor ornamental plants was studied through fumigating in laboratory. Simultaneously, the indoor ornamental plant, which could significantly en- hance the degradation capacity of formaldehyde, was screened out to study the physiological and biochemical mechanisms of formaldehyde resistance. [Result] The ability to absorb formaldehyde of four indoor ornamental plants was enhanced by dif- ferent ranges after spraying with LaCl3 at suitable concentrations. The ability to ab- sorb formaldehyde of Hedera nepalensis var. sinensis, Chlorophytum comosum, Scindapsus aureun and Sansevieria trifasciata increased by 15.16%, 4.72%, 19.75% and 7.68%, respectively. In the four indoor ornamental plants, the capacity of S. au- reun to absorb formaldehyde was greatly improved by spraying LaCl3. When S. au- reun was stressed by formaldehyde, its chlorophyll content decreased by 39.87%, membrane permeability, MDA accumulation and POD activity increased by 8.17%, 56.92%, and 11.32%, respectively. However, compared the pre-spraying group with the no-spraying group under formaldehyde stress, chlorophyll content of S. aureun reduced less, membrane permeability and MDA cumulative both increased less, but POD activity increased more. [Conclusion] The formaldehyde absorption capacity of S. aureun was mostly improved after LaCl3 was sprayed.

Investigation and Analysis of Autumn and Winter Ornamental Landscape Plants in Kuitun City of Xinjiang

Through field investigation on autumn and winter ornamental landscape plants in representative main roads, residential areas and parks of Kuitun City and based on relevant materials, the disposition and landscaping of these plants were analyzed from the perspectives of plant species, ornamental characteristics and landscape creation. The result showed that autumn and winter landscape plants in Kuitun City were primarily evergreen coniferous and deciduous trees outstanding for their shapes and colors, and that landscape was created through different types of plant disposition. Especially colors of trunks, barks, leaves, winter buds and fruits' colors provided favorable conditions for appreciating plants in autumn and winter. Finally, suggestions were proposed according to the investigation and analysis of autumn and winter ornamental plants in Kuitun City, so as to provide reference for future construction and development of landscape plants.

Functions and Application Principles of Indoor Ornamental Plants

Characteristics,categories and functions of indoor ornamental plants were introduced in this study,and application principles were analyzed.

Introduction about Indigenous Ornamental Plant Resources in Tianzi Hill of Wuhan City and Application Suggestions

Through investigating wild ornamental plant resources in Tianzi Hill of Wuhan City, it is found that there are 127 indigenous plant species of 97 genera, 60 families, among which Sinojackia xylocarpa is the national rare and protected species. In this study, the distribution of wild ornamental plant resources and the ornamental characteristics of main ornamental plants in this region were analyzed, 13 species with outstanding ornamental characteristics and development value are described. Meanwhile, recommendations were put forward for the protection and utilization of indigenous ornamental plant resources in Tianzi Hill.

Study on Distribution and Ornamental Characteristics of Gentianaceae Plants in Guizhou Province

Through investigating Gentianaceae plant resources in Guizhou Province, collecting and identifying specimens, consulting relevant records and documents, Gentianaceae plant resources in Guizhou Province and their ornamental characteristics have been elaborated, and the ornamental species of Gentianaceae plants in this region were introduced.

Occurrence of Root-Knot and Reniform Nematodes in Ornamental Plants Grown in Aligarh Muslim University Campus, India

An extensive survey of about 50 ornamental plants growing in A.M.U. campus were carried out to find out the infection of root-knot (Meloidogyne spp.) and reniform nematodes (Rotylenchulus reniformis). Out of 50 species of ornamental plants studied, 29 species of these plants were found to be infected with root-knot nematodes (Meloidogyne spp.) and 15 species were infected with reniform nematode (Rotylenchulus reniformis). The highest percentage of infection of root-knot nematodes was observed in Impatiens balsamina (100%) and reniform nematode was observed in Hibiscus rosa-sinensis (56%). Among the Meloidogyne spp. the highest percentage of infection of M. incognita was observed in Pseuderanthemum atropurpureum (80%) whereas, the highest percentage of infection of M. javanica and M. arenaria was observed in Mirabilis jalapa (72%) and Celosis cristata (28%).

Quantity of plant leaf area on three major public squares in Kunming City, China

Regressive formulae to calculate the quantity of plant leaf area for 13 species of ornamental plants were set up based on investigation data of 30 species on 3 major public squares (Dongfeng square, Shengli square and Guandu square) in Kun-ming City, China, which were applied to calculate quantities of plant leaf area of these 13 species. The quantities of plant leaf area for the other 17 ornamental plant species on these squares were directly measured, and the total quantity of plant leaf area of each studied square was obtained individually. The results showed that the quantity of plant leaf area on Shengli square with ornamental plants structure composed of arbor tree species, shrub tree species and turf grass was highest among the three squares. It is believed that the design model of multi-storied vertical structure and proper tending of plant community could not only increase the quantity of plant leaf area, but also play an important role in generating ecological and landscaping benefits. Some corresponding suggestions were put forward on the basis of comprehensive analyses on the plant leaf area quantity of the three representative squares in Kunming urban area.

观赏植物修复城市铅污染土壤技术分析与展望

重金属铅(Pb)污染土壤问题威胁着城市土壤生态功能的发挥和人体健康,开展城市铅污染土壤治理具有重要意义。相较于物理和化学修复法的局限性,利用观赏植物修复城市铅污染土壤可在实现土壤铅减量化、恢复土壤生态功能的同时具备较好的景观效果,更适用于城市铅污染土壤的修复治理。本文论述了植物修复铅污染土壤的机制以及影响因子,并分析了观赏植物作为铅富集植物的优势及其应用于城市铅污染土壤修复可能存在的生长势弱、铅提取效率低等问题。为进一步强化植物修复效果,分别从植物-纳米材料、植物-化学药剂、植物-微生物和植物-基因工程4个方面比较了观赏植物联合修复铅污染土壤技术的主要优缺点及应用方式。本文展望了观赏植物修复城市铅污染土壤技术面临的挑战和未来研究方向,提出利用分子育种技术筛选与改良超富集观赏植物、研发联合修复技术并探索协同修复机制以实现可持续修复城市铅污染土壤的建议;此外,还应加大实地修复力度,打造修复成功案例,为城市铅污染土壤的修复提供科学依据。

鸡公山野生木本观赏植物资源及开发利用策略分析

采用实地调研与文献结合的方法,根据生活型、花色、花期、果色、果实类型、观果季节和叶色,将鸡公山的野生木本观花、观果和观叶植物进行分类,分析其数量和应用情况。结果表明,研究区野生木本观花植物157种,以灌木、白色系花朵数量较多,主要在春季观花;观果植物50种,以乔木、红色果实和核果数量较多,多在秋季观果;观叶植物35种,其中槭树科、漆树科树种最多,秋色叶树种较多。关于野生木本观赏植物开发利用提出了适地适树和强化种质资源保护的策略。本研究为研究区乡土木本观赏植物应用提供参考。

Study on the Collocation between Small Garden Ornaments and Other Elements

Starting with the basic elements of small garden ornaments, this research discusses its collocation art with other landscape elements such as plants, water, stones and environment, in order to offer useful references for the garden planning in a city.

大兴安岭主要观赏植物资源开发利用的调查研究

大兴安岭观赏植物资源由野生和引种两大类构成,涵盖了乔、灌木树种和草本植物,在园林、旅游、食品和药用等方面得到了广泛开发利用,产生了较好的社会效益,促进了地方经济繁荣发展。

Micropropagation of Daylily(Hemerocallis fulva)from Crown-Tip Explants and Assessment of Somaclonal Variation of in Vitro-Propagated Plants Using SCoT Markers

Determination of the somaclonal variation of in vitro-propagated plants is crucial to determine the appropriate micropropagation protocol and growth regulators for commercial scale multiplication.In this research,nine multiplication media(MM)augmented with different concentrations of 6-benzyl adenine(BA),Kinetin(Kin),and Thidiazuron(TDZ),Three rooting media(RM)supplemented with three levels ofα-naphthalene acetic acid(NAA)and three types of soil mixtures(v/v);Coco peat/Vermiculite/Sand(CVS),Peat moss/Perlite/Sand(PPS)and Peat moss/Perlite(PP)were used in the micropropagation protocol of daylily plants.MM2 showed the maximum shoot length and the number of leaves,while MM9 showed the maximum number of shoots.The RM1 showed the maximum root length and the number of roots.During acclimatization,CVS,PPS,and PP soil mixture showed similar performance except the CVS mixture showed lower performance regarding plant height and diameter.The genetic fidelity of micropropagated plants was evaluated using Start Codon Targeted(SCoT)Markers.Six SCoT primers amplified 51 scorable bands with an approximate range from 146 bp to 1598 bp size.Thirty one out of 51 loci were presented in the mother plants.40 loci were polymorphic,11 were monomorphic and 7 were unique.The amplification patterns of the micropropagated plants demonstrated genetic integrity to the mother plant ranging from 84.32 to 47.06 and somaclonal variations ranging from 52.94 with 5 mg/l BA pathway to 15.68 with 1mg/l TDZ pathway,thus demonstrating that the homogeneity and the variation of the micropropagated plants affected by the type and the quantity of the plant growth regulator used during multiplication subcultures.This research can be successfully used for other ornamental and medicinal plants’bulk multiplication,germplasm conservation,and future genetic improvement.

Selection and Configuration of Landscape Plants for the Median Strip of Suibei Highway

Landscape design and greening quality of the median strip on multi-lane highway are the most important parts of the visual impact factor. Using ornamental plants to create a comfortable greening scene on the median strip, can effectively prevent glare and improve the road driving environment. The paper studied and analysed the median strip greening status and the driving environment problems of Suibei highway in north China. On the basis of local environmental conditions, the research selected suitable landscape species to form well-proportioned landscape scenes for this highway median strip. Three sets of reference landscape configuration modes were designed for improving the median strip of Suibei highway based on the recommended landscaping plants in this paper.

Survey on Germplasm Resources of Araliaceae Plants in Southeastern Tibet and Study on Their Landscape Application

In recent years,the Araliaceae plants have been widely used in the planning of urban garden and road green space. China is rich in Araliaceae plant resources and Araliaceae plants are outstanding in form,but their ornamental value is less studied. Through the statistical survey of the germplasm resources of Araliaceae plants in southeastern Tibet,and the research and analysis of their functions and ornamental characteristics,this paper concluded that the Araliaceae plants in southeastern Tibet have high ornamental value,and 12 varieties of Araliaceae plants can be used in gardens and have great research and development significance. Finally,it came up with recommendations for the collection and protection,introduction and breeding,and garden application of Araliaceae plant resources.

不同氮磷钾水平对枫叶秋海棠观赏性状的影响

以具膨大茎基的枫叶秋海棠为试验材料,通过温室盆栽试验,考察不同氮磷钾水平对枫叶秋海棠观赏性状(茎基直径、生物量、株高、分枝数和开花数等)的影响,以期为枫叶秋海棠规范化栽培与生产的合理施肥提供理论依据。结果表明,与标准浓度NPK处理相比,缺氮、缺磷处理下枫叶秋海棠生长和各观赏性状指标均显著降低;提高氮、磷水平对枫叶秋海棠的茎基直径、茎基和地上部分生物量、株高、分枝数和开花数均有不同程度的促进作用,其中2NPK处理下,枫叶秋海棠的茎基直径、茎基生物量和开花数量等各项生长指标均高于其他处理。综上所述,不同氮磷钾水平对枫叶秋海棠观赏性状影响显著,在保证磷素供应的基础上提高氮素供给水平对维持枫叶秋海棠的健康生长和良好的观赏形态尤为重要。

“大思政”格局下研究生课程思政的探索与实践——以观赏植物类课程为例

在“大思政”格局下,针对研究生课程比例较低、学时较少的情况,以农科类专业观赏植物类课程为例,通过深度挖掘课程中花卉栽培历史、中国花文化、课程内容等与国家战略、文化自信、家国情怀、使命担当和学术精神等紧密相关的思政教育元素,改革教学方法、教学模式,利用线上、线下课程,于课前、课中、课后,课内、课外多途径拓展思政范围和教学路径,从而实现研究生教育的价值引领、知识传授与能力培养“三位一体”的培养目标。

合肥市野生观赏植物资源调查与引种栽培

为了解合肥市野生观赏植物资源种类、观赏特点及引种适应性,对其野生观赏植物资源进行野外实地调查,并对观赏价值突出、种群数量较多且极易获得材料的种类进行引种试验。结果表明:合肥市野生观赏植物216种,隶属于82科172属;优势科为豆科、蔷薇科、菊科;生活型以草本占优势,在垂直绿化中发挥重要作用的藤本植物也比较丰富,但乔木较少;野生观赏植物以观花植物占大多数;应用于园林花坛花境类植物居多;引种49种至实验园栽种,成活42种,引种成活率为85.71%。

保山市隆阳区观赏种子植物资源多样性研究

通过野外调查与文献查阅,整理得出保山市隆阳区观赏种子植物名录。结果表明,隆阳区观赏种子植物81科185属286种,其中裸子植物6科9属10种,被子植物75科176属276种,优势科为兰科、蔷薇科、木犀科、鸢尾科;按照生活型划分为乔木类33种、灌木类114种、草本类133种、藤本类6种;按观赏类型可分为观花类植物174种、观植株类植物130种、观果类植物32种、观叶类植物19种。旨在掌握隆阳区观赏种子植物资源应用现状,并对观赏种子植物资源保护与开发利用提出建议。