scholarly journals The effect of silicon foliar application on the development of Seasonal ornamental plants. Part I: Sanvitalia speciosa 'Sunbini', Verbena 'Patio Blue' and Portulaca umbraticola 'Duna Red'

2012 ◽  
Vol 64 (4) ◽  
pp. 99-106 ◽  
Author(s):  
Regina Dębicz ◽  
Katarzyna Wróblewska

Silicon is known as an element stimulating plant immunity and resistance to unfavorable conditions. Additional treatment with silicon may also cause a positive change in plant performance, improving the quality of ornamental plants. In the years 2009-2010, a two-factorial experiment was conducted involving three cultivars of seasonal ornamental plant species: creeping zinnia <i>Sanvitalia speciosa</i> 'Sunbini', vervain <i>Verbena</i> 'Patio Blue', and purslane <i>Portulaca umbraticola</i> 'Duna Red'. The first experimental factor was the concentration of Actisil preparation being an equivalent of 60, 120, and 180 mg Si×dm<sup>-3</sup>, applied three times by spraying, the second one was the type of medium: peat substrate and peat substrate with sand. The experiment proved the beneficial effect of fertilization with silicon on plant development of <i>Verbena</i> and the number of shoots of all examined plant species. The higher concentrations of Actisil were applied, the higher number of shoots the plants developed. Plants treated with Actisil also produced a higher number of buds and flowers or inflorescences featuring an increased diameter. Plants cultivated in peat substrate flowered better.

2012 ◽  
Vol 64 (4) ◽  
pp. 107-114 ◽  
Author(s):  
Katarzyna Wróblewska ◽  
Regina Dębicz

Recent research has proved that supplementary application of silicon, involved in plant tolerance against many stress factors, positively influences plant development improving the quality of ornamental plants. A two-factorial experiment involved four cultivars of ornamental plants: <i>Argyranthemum frutescens</i> 'Blazer Rose', <i>Xerochrysum bracteatum</i> 'Gold', <i>Osteospermum ecklonis</i> 'Grande Pink Blush', and <i>Gaura lindheimeri</i> 'Corinas Choice' The first experimental factor was the concentration of Actisil preparation being an equivalent of 60, 120, and 180 mg Si×dm<sup>-3</sup>, applied three times by spraying, while the second one was the type of medium: peat substrate and peat substrate with sand. Actisil had a beneficial effect on the number of lateral shoots in all plants. The highest number of buds and inflorescences was determined in <i>Xerochrysum</i> and <i>Osteospermum</i> plants sprayed with 0.3% Actisil, and 0.2% Actisil in case of Argyranthemum and Gaura. The effect of medium type on plant growth depended on plant species. <i>Argyranthemum</i> and <i>Osteospermum</i> plants cultivated in the medium with sand showed inhibited growth, although medium type did not affect the growth of <i>Xerochrysum</i>.


2020 ◽  
Vol 1 (2) ◽  
pp. 38
Author(s):  
Ernaning Setiyowati ◽  
Nunik Junara ◽  
Prima Kurniawaty

Malang City has an annual program of activities for villages namely Kampung Bersinar (Clean, Healthy, Beautiful, Beautiful and Neat). One of the areas that have greening problems is RW 04, Gadang, Malang City on the banks of the Brantas river. Lack of greening in this area causes this area to be prone to landslides because the area is very contoured. That's why the focus of community service is to educate the public in the field of greening to improve the quality of the environment in the area. The method used is Participatory Action Research (PAR) which involves community action in its activities. The activity carried out was to train the creation of ornamental plants in the form of spheres growing to PKK women in RW 04, Gadang, Malang. The results of this activity are PKK mothers who have new knowledge by making ornamental plant creations that can be applied in the area so that it will improve the quality of the green environment in the area..


Author(s):  
Muhammad Saddam Ali ◽  
Hadi Susilo Arifin ◽  
Nurhayati H.S. Arifin

Urbanization and fragmentation are the main factors causing dynamics in the pekarangan. The dynamics that occur are related to the structure and function of the pekarangan. This makes the pekarangan performance changes according to the interference of the pekarangan owner. Selahuni 2 Homlet, Ciomas Rahayu Village, Bogor has become the location for observing the dynamics of the past two decades. Pekarangan samples taken in 2019 are exactly the same as those taken in 1998 and 2007, totaling 10 houses. The aim is to determine the extent of changes that occur in the pekarangan, both structure and function. Measuring the area, ownership of the pekarangan, recording of species and function of the existing vegetation of the pekarangan. In 2019, data on ownership of houses and pekarangans by old owners dropped dramatically by only 40%. In 2019, the average pekarangan area will decrease by an average area of 110.81 m2. In 1998, 2007 and 2019, the percentage of the number of non-ornamental plant species was 4-10% higher than that of ornamental plants. Therefore, there was a change in both the extent and ownership, function and structure of the vegetation in the Selahuni 2 Homlet’s pekarangan which was caused by urbanization and fragmentation factors.


2021 ◽  
Vol 61 (3) ◽  
pp. 195-200

In the experiment carried out in Sahryń village (50°40′42″N, 23°47′35″E) in 2019–2020, the impact of threefold foliar application of Si and Ca-containing fertilizer, fourfold application of fungicides and the combination of both of these combinations on the yield and technological quality of sugar beet roots in conditions of strong infection pressure of Cercospora beticola Sacc. The effects were compared to the control. Triple foliar application of the fertilizer had a beneficial effect on the root, biological and pure yield of sugar. The biological and pure yield of sugar increased in the following sequence: control; 3x foliar application of the product with Si + Ca; 4x fungicide treatments; 3x foliar application of the product with Si + Ca + 4x fungicide treatments. A foliar application of silicon and calcium products can help implement a “field to fork” strategy.


2020 ◽  
Vol 19 (02) ◽  
pp. 59-68
Author(s):  
Tien T. M. Duong

This research was carried out from October 2017 to October 2018 at some ornamental plant stores and nurseries in district 7, Go Vap district, district 10, Tan Binh district and Binh Chanh district. These are important ornamental plant trading and producing areas in Ho Chi Minh City. This study aimed to identify and analyse the potentials of using ornamental flowers, plants and trees for garden design. The investigation was conducted through questionnaire surveying, morphological comparison, species identification. The collected data was then statistically analysed. We divided these districts by zones and routes for the invesgation. There were 542 identified ornamental plant species in Ho Chi Minh City. According to the analysis of 7 important groups of ornamental plants such as tree trunks, shape of the tree, leaves, and flower groups, the bonsai pots for interior display, with large leaves, dark green to light green colors, large flowers, height from 0.1 to 1 m and no fragrance is common. Briefly, the obtained results would contribute to the design and construction of gardens in Ho Chi Minh City


2021 ◽  
pp. 32-40
Author(s):  
Lavdi Hasani

In this paper, one of the most specific groups of plant entomologists, that of the U/Order Coccoinea Class Insecta is taken into analysis. Below it is seen important to identify the problems of infections of a variety of ornamental plants, found in the Southern Region of Albania, precisely by this group of pests. The role of the quality of the natural environment in our health has recently taken tremendous priority in the context of the contamination of all forms in the wild nature and especially those in the air. Precisely, to increase the quality of our life, the establishment of major parks with a truly significant green space per unit of population, is one of the current main objectives of each country. In these conditions, those environments are pretty rich in a variety of plants that, in addition to the functional values of environmental creativity, also have many aesthetic values with relaxing  power and positive effects on our physical and mental health This type of plants is represented not only by those that are cultivated directly in the nature, but also by those that are planted and cultivated in greenhouses, which from time to time we take them out to realize the required decorations and compositions, asked to cover the needs of the parks. The healthier these components of this environment are, the more effective is their role on our personal health. For this reason it is equally important to recognize the dangers that threaten this vegetation by disabling its main function, for which we, as citizens, are interested, due to the need of our health, to have it in the highest efficiency. On this basis arose the idea of a comprehensive study on the above group of insects, which in a form or another constitute some of its main pests. These insects, as a specific group of pests that feed on plant lymph, not only dry out the plant, but also transmit to it a series of viral diseases, leading the plant to complete degradation. Most of them spend the winter (one of the most delicate periods for their survival) as parasites on them. We show below, which of these entomophytes is found in this group of plants in the region in question. It is also shown, which of the analyzed plant species emerges as the most frequented by this group of pests. We also identify the prevalence of this pollution in both variety and percentage. On the basis of the analysis, the question is also what is the distribution of plant species encountered, at different altitudes above the sea level? The paper contains, figuratively, a series of morpho-defining characteristics of the representatives, mentioned in this paper. As will be seen in the following material, the truth is that this specific group of ornamental plants, part of the relaxing parks around the world, in our country turns out to be contaminated by a large number of these parasites. This shows that in order to carry out quality work in this direction, we must not leave without considering the role of these pests in this process. Thus, we will be able to control the quality and function of our recreational environments in the role, for which we realize them. For this reason, detailed data are given below. We have identified these parasites in about 15 (fifteen) species of these ornamental plants, taking into account that parks in our country are not valued for the size of the area, as in an inferior and small country. In this material we have identified the number and dynamics of parasites according to each plant and also according to their distribution in areas with different altitudes above the sea level. We also give a comparative report on the frequency of vulnerability of the various plants by representatives of these pests. Summarized in a table, we have given for each pest the plant variety that it frequents, noting, in which plant organ this parasite was most commonly found during our research. As it is a group with annual activity on the plants, we have data for each month that we have met them on this vegetation and for each plant organ, where they were met (in leaves, on stalks or even the fruit itself). Regarding the degree of the damage that they cause to the plants, given the many harmful valences they show, not all belong to the category of the very dangerous pests. Some enter the minor pests that are mostly caused by overlapping other diseases, some others into the normal pests and a more specific group enters the category of very powerful pests, the risk of which is maximized with other additional effects. These and other information are given in table Number 1 (one), with the required symbolism. Since this group of plants is the environmental generator, where we live and work, the work in question takes on practical importance and value


Plant Disease ◽  
2006 ◽  
Vol 90 (11) ◽  
pp. 1457-1457 ◽  
Author(s):  
R. P. Singh ◽  
A. D. Dilworth ◽  
V. K. Baranwal ◽  
K. N. Gupta

Columnea latent viroid, originating from ornamental plants, is known to be harmful to crop plants (2). Despite the potential threat to crop plants, the importance of ornamental plants in viroid evolution is not fully appreciated. Availability of a Pospiviroid genus-specific primer pair (1) to detect the most prevalent viroids in ornamental plants and a simplified nucleic acid preparation protocol (3) for use in reverse-transcription polymerase chain reaction (RT-PCR) have facilitated surveys of ornamental plants for pospiviroids. Using the above protocol in India, leaf and shoot samples were collected randomly from roadside beds consisting of ground covers or creepers/trailing plants at the IARI campus, New Delhi. These were extracted in 50 mM NaOH + 2.5 mM EDTA solution, centrifuged to sediment the coarse debris from sap, and 10 μl of the supernatant was spotted on a nitrocellulose membrane. Individual spots were eluted with distilled sterile water (30 μl) and the eluates were used for RT-PCR detection of viroids (3). Amplified fragments or subsequently cloned plasmids were also purified using NaOH-EDTA membrane protocol. Cloning and sequencing of amplicons (195 to 224 bp) revealed a very high sequence identity with specific viroids from the viroid sequence database (NCBI). Among the 19 plant samples assayed, only three plant species were infected by viroids, although none of them exhibited any symptoms. The three plant species included: (i) moss verbena, Glandularia puchella (Verbenaceae, native to Argentina and Chile, now established in several regions of the world), infected with a viroid (Accession No. DQ846884) having 99% sequence identity to Citrus exocortis viroid (CEVd) (Accession No. S67446); (ii) trailing verbena, Verbena × hybrida (Verbenaceae, ornamental plant), doubly infected with a viroid (Accession No. DQ846885) having 95% sequence identity to CEVd (Accession No. DQ094297) and infected with another viroid (Accession No. DQ846883) having 98% sequence identity to Tomato chlorotic dwarf viroid (TCDVd) (Accession No. AF162131); and (iii) red joyweed, Alternanthera sessilis (Amaranthaceae, a perennial weed herb) infected with a viroid (Accession No. DQ846886) having 96% sequence identity to Iresine viroid (IrVd) (Accession No. DQ094293). CEVd and TCDVd were mechanically transferred to tomato seedlings causing reduced growth of plants, smaller leaves, and bunchy-top appearance of plants, symptoms similar to those typically observed with other isolates of these viroids. As expected from previous studies, IrVd was not transmitted to tomato plants. Natural infection of verbena with CEVd has been detected in North America (2) but this was a novel observation in India. Additional novel observations include: A. sessilis as a new host for IrVd; and TCDVd is the first crop viroid to be isolated from a naturally infected ornamental plant. The significance of these viroid findings in ground cover and widely grown ornamental plants may lie in their potential role in spreading the viroids to citrus plants in citrus-growing countries such as India. References: (1) H. Bostan et al. J. Virol. Methods 116:189, 2004, (2) R. P. Singh and J. A. Teixeira da Silva. Floriculture, Ornamental Plant Biotechnol. 3:531, 2006. (3) R. P. Singh et al. J. Virol. Methods 132:204, 2006.


2000 ◽  
Vol 6 (1) ◽  
Author(s):  
P. Lévai ◽  
Zs. Farkas

On the basis of a six-year experiment a method was elaborated for forcing and off-seasons growing of tulips, narcissus and gladioli under frameless plastic cover. The advantages of this cheap energy-saving method are manifested in an improved quality of flowers and essentially in the earlier flowering. With this method mostly first-class flowers can be obtained immediately after the season of forcing in heated constructions with plastic cover, and anticipated outdoor flowering. The possibilities of applying the method are studied on further ornamental plant species (other bulbous plants, Paeonia lactiflora, annual ornamentals).  


EDIS ◽  
2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Muhammad Ahmed ◽  
Lance Osborne ◽  
Vivek Kumar ◽  
Cindy McKenzie ◽  
Cristi Palmer

Bemisia tabaci (Gennadius), commonly known as silverleaf whitefly, is a polyphagous pest and listed as one of the world’s 100 worst invasive species. It is known to feed on more than 1000 plant species and vector over 120 plant-damaging viruses. This publication provides a management program for nursery and ornamental plant growers to aid in their efforts to minimize selection for insecticide resistance irrespective of whitefly biotype while helping to achieve top-quality plant materials.


Author(s):  
Muhyettin ŞENTÜRK ◽  
Rıza BİNZET

Humanity has used plants for aesthetic purposes for centuries. Plants nowadays use cities for more livable habitats and similar purposes to satisfy the longing for nature of people who move away from nature due to increasing urbanization. So that plants attract attention as a commercial field plays a crucial role in economic development for many countries today. Our country, which is one of the richest geographies in terms of biodiversity globally, shows a total of 11466 plant taxa, 3800 of which are endemic. While the total number of plant species in all of Europe is around 12.000, in our country there are approximately 10.000 species. When the species and subspecies identified in recent years are added, around 12,000 taxa find natural habitats in our country. Mersin province is one of the important endemism centers of our country, with approximately 400 endemic species (endemism rate is approximately 23%). It is seen that the areas where geophytes spread intensively in the world are regions where the Mediterranean climate prevails, which is humid and warm in winters and dry and hot in summers. The Mediterranean Basin, where our country is located, is the second richest geophyte region in the world. Mersin province is one of the provinces located in the Mediterranean Basin. Within the scope of this study, it is to determine the usability of endemic plant species that are naturally distributed in Mersin province as ornamental plants and to ensure that they gain economic value in the ornamental plant market. For this purpose, in our study, some monocotyledon taxa that have an ornamental plant potential from endemic plant taxa in Mersin have been determined, and photographs of these taxa are presented. The recommended taxa are geophyte taxa, and the fact that they only spread in our country (some only in Mersin) is of great importance in bringing these species into the landscape as ornamental plants. A total of 20 endemic taxa belonging to 5 different monocotyledon families identified in Mersin were determined. The endangered extinction of some of these taxa proposed as ornamental plants is also of great importance in ensuring their generation by bringing them into the landscape with various production techniques.


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