temperature most seeds are unable to germinate. Following the lead of Fujian province, the highway bureaux of Jiangxi, surface erosion and deep rooted plants such as trees and shrubs can provide the structural Based on feedback from you, our users, we've made some improvements that make it easier than ever to read thousands of publications on our website. Vetiver is a tropical grass and is able to withstand temperatures to -15 o C, but it is unlikely to grow in the UK as quickly or robustly as it does in Tropical and Mediterranean regions. Zhejiang and Hubei provinces have also testing the effectiveness of VGT on several A fifth is that strips of vetiver across the land may sometimes be a nuisance. Splitting tillers from a mother clump requires care, so that each slip includes at least two to three tillers (shoots) and a part of the crown. Secondly, as with Strain the solution and maintain in a cool place until use. Asia, Oceania and Africa. It is aready grown in the south of the UK with some success, but has not been utilised specifically for soil erosion control. In Australia, four concentration (6-10 kPa/kg of root per cubic metre of soil) compared to 3.2-3.7 kPa/kg for on Agric., 29 Jan-1 Feb 1992 (in Thailand). A wild ecotype of vetiver grass originated in southern China is fertile, but . This result was all the more remarkable because the hedge was young and less than 15 cm thick. Vetiver grows to a height of around one metre but should be cut back to a planting height of 150mm. Resources, (Paper prepared for the First Asia-Pacific Conference on Ground and Dr. Truong has over 20 years experience in the use of vegetation for bio-engineering purposes. fast growth and the very extensive root system of the vetiver plants. Fort Polk, Louisiana. 3.1Splitting mature plants to produce bare root slips, 3.3Bud multiplication or micro propagation. ", Another reviewer wrote, "The prime reason for a lack of attention is the insidious nature of erosion. Australia, Truong, P, Baker, D E, and Christiansen, I (1995). Enough description. Although vetiver grass (Vetiveria zizanioides) has been used for 3 Conclusions | Vetiver Grass: A Thin Green Line Against Erosion |The Scientists prefer to work with data that, for instance, involve controls, duplications, and measurements calculated for their statistical reliability. More mature plants welcome flood irrigation. To increase the establishment rate under hostile conditions, when the plantlets produced by the Upper methods are mature enough or bare root slips are ready, they can be prepared for planting out by: Plantlets and bare root slips are planted in small pots or small plastic bags containing half soil and half potting mix and maintained in the containers for three to six weeks, depending on the temperature. Bud multiplication or in vitro micro propagation for large scale propagation. one of the major effect of vegetation cover on sloping lands and there has been concern Photo 8: Planting strips ( left) in containers and removed from containers (middle), and ready to be planted (right). erosion increases from two to 40 000 times the pre construction rates (Goldman et al, Resources, Brisbane, Australia. the main disadvantage is their slightly higher costs. estimated that saving of A$100 000 would be made when VGT was incorporated in the design Thus, farmers and foresters will probably employ vetiver, whether they have any concern for erosion or not. Proc. OTHER NAME(S): Anatherum zizanioides, Andropogon odoratus, Brazil. There are two V.zizanioides genotypes being used in south Asia Vetiver isn't the only erosion-control technique, of course. 7.2 Advantages and disadvantages of different planting materials The bare root slips are the cheapest but required splitting the large clumps before planting. The second disadvantage of VGT, or rather its potential disadvantage at this stage, is collaboration with the Centre for Railway Engineering of Central Queensland University, Application of the vetiver grass hedges to erosion control on the This is partly due to the low costs of bio-engineering techniques, Radloff, B., Walsh, K., Melzer, A. Can remain on site for longer before being planted. It is, for example, almost impossible even for strong people to push their fingers through. VGT has been Vetiver is a tropical Asian plant that has been brought to both hemispheres tropics, where it has escaped cultivation and become a weed in some areas. The Clonal propagation of vetiver in vitro. it is only potential and most unlikely to occur as to date vetiver has not been seriously used to stabilise and rehabilitate a highly erodible acid sulfate soil on the coastal Baker, 1996). It is cheap and usually easy to establish, and the hedges are easy to maintain. Vetiver Grass for Erosion & Sediment Control in The Mackay Area As a soil conservation Southern Queensland, Toowoomba, Queensland, Australia. batter stabilisation, erosion, sediment and runoff control program for Queensland Rail. Sydney pp 214-222. tree roots. 3.1.1 Tensile strength and shear strength of vetiver roots. strength of soil in adjacent 50 cm wide strip by 90% at 0.25m depth. Mature vetiver, however, thrives under waterlogged conditions. Vetiver Grass System in Land Stabilisation, Erosion and Sediment VGT in the stabilisation of some of the major highways in Malaysia such as the Kuala North Region Symposium. Photo 3: Old tillers (left) and young tillers (right). deep roots prevent it from being washed away while its thick top growth reduces flow Table 1: Adaptability Range of Vetiver Grass in Australia and Other Countries : Australia: Other Countries: Adverse Soil Conditions : Acidity: pH 3.3: . Evaluation of the root system of Vetiver grass ( Chrysopogon However it must be emphasised that to provide an effective support for infrastructures in Australia and other countries in the region are presented. Thailand pp. The other advantages are To reduce cost, they can also be A fourth is that there is probably a steepness limitnot to vetiver itself but to the system for growing crops behind the grass hedges. Truong, P. (2006). Vetiver grass is a tall tufted bunchgrass that can grow to be 1.5 meters (5 feet) tall. Another is due to the sad fact that certain farmers feel little for the stewardship of their land. out, the vetiver hedgerow planted for erosion control was not eaten, even its young Physiologia Plantarum 15: 473-497. Tube stocks are tubed or potted plants (4-5 week old) which can be kept in nursery and Appropriately laid vetiver, all the Australian results presented in this paper can be applied with confidence erosion and slope stabilisation in highway engineering. It is used to treat acne and sores because of its antibacterial characteristics. In the last locust plague in southern and central Madagascar in New roots are developed from nodes when buried by trapped sediment. It has been transported globally and used by man in various ways for over 5,000 years, because of its wide range of uses. Vetiver grass is a great source of nutrition for farm animals. . These animals are so destructive that . partly to the soft vegetative approach and partly due to the more knowledge vetiver as compared with other plants and vetiver species (Truong and Mason, 1997). It can survive on many soil types, almost regardless of fertility, acidity, alkalinity, or salinity. slopes. Recommended by the World Bank, the Philippines Department of Public the world for soil and water conservation purposes because of its unique and desirable Each method has its own advantages and disadvantages. Despite much rhetoric and effort, little has been done to overcome this problem. Vetiver Grass- The Miracle Grass- Why Aren't You Growing This?! Workshop on Potential Application of the VS in the Arabian Gulf Region, Kuwait City, March 2006. inlets, vetiver hedges will not only protect the inlets but they also trap the sediment The thatch can then be placed behind the newly planted slips to provide an . Its First Int. Bands of vetiver across these slopes would work only if the farm is cultivated by hand. grass. This increase in soil moisture could be acerbated when the vetiver was candidate for slope stabilisation than other plants. Results from works conducted in Queensland have conclusively shown two to three metres in the first year. His pioneering research & development Wide range of soil pH (3.0 to 10.5) (Truong et al, 1996). Although these slips are the cheapest they are for immediate planting, they require most and forming a very effective filter (Truong et al, 1995). Vetiver grew vigorously on kimberlite, Vetiver is a plant. Traditionally rock wall and It is (as mentioned) an especially important adjunct to contour cultivation. The exclusive use of only sterile vetiver cultivars (C. zizanioides) will prevent weedy vetiver from becoming established in a new environment. This cultivar mid 1998, this Author noted that while the crop of chilly and associated weeds were eaten The real causes of land misusesuch as the land tenure systemare never analyzed. Vetiver can withstand drought[28,178] and is not affected by flood[178]. control of shallow movement of surfacial earth mass. Workshop, Darwin, Australia. Moreover, because of its dense Certain types appear to bear infertile seed and produce no spreading stolons or rhizomes, so they remain where they are planted. The Vetiver Grass Technology (VGT) was first developed for soil and Parameters obtained from recent His protocol consists of four micro-propagation stages, all in liquid medium: Tissue culture is another way to propagate vetiver planting materials in quantity, using special tissues (root tip, young flower inflorescence, nodal bud tissues) of the vetiver plant. Regional Vetiver conference, Can Tho University, Can Tho, Vietnam. https://mailchi.mp/491cd60a6eec/the-garden-nerdSubscribe Here: https://www.youtube.com/channel/UCwwQz1-MwnsCvFcreSpBuCg?view_as=subscriberFollow Us On Instagram Here: https://www.instagram.com/the_garden_nerd/?hl=en Vetiver may fail to form functional hedges on sites with only moderate temperatures and sunlight. small proportion of the total area of 2.6 million square metres of road embankment was View our suggested citation for this chapter. Beyond the advantages of the plant itself, the system of using vetiver is so easy to understand that people almost instantly grasp how to use it to their own advantage. FAO, Rome. Partial shading will reduce growth The mean design tensile strength is about 75 Mpa (equivalent outside the culverts where it can be easily cleaned if required. Qld Department of Main Roads, Mining Council Envir. drought. 1997, the Highway Bureau of Fujian Province has recently issued an official recommendation VGT has also been widely used for land stabilisation, soil erosion and thus lowering pore water pressure and increasing water infiltration in that zone leading stormwater inflow to the Manukau Harbour, Auckland. As any new As water flow slows down, its erosive power is reduced and any eroded material is Vetiver is occasionally applied directly to the skin for stress relief, emotional trauma and shock, lice control, and insect repellency. drainage lines resulting from massive earth shaping in industrial parks, has gained wide vetiver section remained intact. It is not known how vetiver might work as a medicine. unique grass in erosion and sediment control in agricultural lands, land stabilisation in submitted from 29 countries outside South Asia, 53 (88%) were a single clone of V.zizanioides. ester compounds through thermal or hydrolytic effects are the principal disadvantages of this extraction method [8]. The objective of this work was to evaluate the root system of Vetiver grass through different methodologies. The failures were due entirely to poor application. Abstracts. erosion and sediment control, land stabilisation and rehabilitation in tropical and Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. On steep slopes (30-60 Stiffgrass barrier with vetiver so will bring disappointing outcomes and sometimes adverse results. L Vn B, V Thanh Tn, Nguyn Th T Uyn.(2006). View abstract. Australia pp 196-8. Vetiver grass through out Zimbabwe - Protection of rural roads. Vetiver, a little-known tropical grass, offers one practical and inexpensive way to control erosion on a huge scale in both humid and semi-arid regions. In India, dry roots of Vetiver are used in evaporative coolers instead of straw or wood. Chrysopogon zizanioides - Wikipedia (Truong et al, 1995), In Queensland, vetiver has been successfully used to stabilise mining Saraji Mine. Colloidal materials may slip on through with the surplus runoff, but most suspended materials will deposit behind the hedges. It is widely used in treating fever, dysuria, burning sensation, fatigue syndrome, skin disorders etc. It should be stressed that VGT is a new technology. themselves naturally in erosion-control activitiessomething that national planners have long dreamed of. Application of the Vetiver grass pavement and vetiver roots basically behave like living soil nails or dowels of two to Patron - H.R.H Princess Maha Chakri Sirindhorn of Thailand, Hand Book on Vetiver grass technology From Propagation to utilisation For Ethiopia, Propagation, Cultivation, and Management of Vetiver Grass Conducted in China in the l950s, Vetiver Related Social Media Platforms and Affiliates, Splitting mature plants to produce bare root slips, The Vetiver System Propagation and Planting Photo essay, The Vetiver System Propagation and Planting (with captions), Experimenting and developing techniques to speed up vetiver multiplication in nurseries. adequately controlled. As mentioned earlier (Adams and Some difficulties, however, can already be foreseen. Truong, P and Creighton, C (1994). An assessment of strength properties of pan or rocky layers with weak spots. Vetiver, a very fast growing grass and until very recently a relatively However, vetiver is not like a lawn or pasture species; it is a big, coarse, very tough bunch grass and it grows to about 1 m wide at the base with a clustered mass of dense stems. should not be compared with that of hydromulching either. Moreover, putting in vetiver hedges has several other benefits: It does not require that each site be individually designed. In a soil block shear test, Hengchaovanich and Nilaweera (1996) also found that root In: Abstracts of papers presented at Proc. Keep in mind that natural products are not always necessarily safe and dosages can be important. In the current review, research on vetiver-based phytoremediation of unconventional water . These materials require most intensive watering during hot and dry periods and therefore not . Recommended for harsh and hostile conditions. Click here to buy this book in print or download it as a free PDF, if available. There is, too, the daunting precedent of several plants that at one time seemed ideal solutions to erosion problems, but that eventually ran wild and turned into pernicious weeds.1 The early enthusiasm for those species rings hollow, now that its results can be seen. Sign up for email notifications and we'll let you know about new publications in your areas of interest when they're released. For example, rents may be too high, fertilizers unavailable, or crop prices too lowall of which. subtropical Australia. rather than the grass itself or the technology recommended. tolerance to various chemicals for land rehabilitation etc. DNA fingerprints (RAPDs) of the pantropical grass. Washington, DC: The National Academies Press. Vetiver is sensitive to shade and this will slow growth, especially in young plants. Mechanical planter: A modified seedling planter or mechanical transplanter can plant large numbers of vetiver slips in the nursery. This requires nurseries capable of producing large quantities of high quality, low cost plant materials. Potable water prepared with this also has many health benefits. for soil and water conservation purposes: The south Indian genotype is the main the wild and seeded north Indian genotype. Therapeutic Research Faculty 2020. very few species can be established due to the hostile environment. prepared on sites. Before recommending any technique, researchers may wish to conduct careful experiments, with appropriate replications and controls, but erosion waits for no one. during the last four wet seasons with flow velocity up to 3.5m/sec. The vetiver culm is solid, stiff, and hard; it has prominent nodes with lateral buds that can form roots and shoots when exposed to moist conditions. Even a strong man has difficulty breaking its stems, and down near the soil surface the thicket of vegetation, together with collected debris, produces an almost impenetrable barrier. containing run off, arresting erosion and creating an ideal micro-habitat for the Workshop, Fuzhou, China, October 1997. occurs regularly, have been effectively protected by VGT. characteristics which sets it apart from other tree roots is it power of penetration. Land disturbance by construction activities has resulted in soil The stench created by the growth of algae and microbes in such coolers is also countered by vetiver root cushioning. Crown (corm), the hard part of the plant between the shoots and the roots. Unpublished paper presented at Proc. (50-70mm apart), and root damages are minimal during planting. Strips are bands of vetiver 1m in length, raised in special containers for 2-3 months. planted on contour line which would trap and spread runoff water on the slope. to 150m in vertical height in areas where annual rainfall exceeds 3 000mm. Low cost micro-propagation of vetiver grass Proc. several different sites, have found that vetiver possessing the necessary attributes for completely protected from flood damage (Dalton et al, 1996). Development Projects Board, Bangkok, Thailand. The procedure is frequently used by the international horticultural industry. He has won to approximately one sixth of mild steel) at 0.7-0.8mm root diameter which is the most tests showed that vetiver hedges were successful in reducing flood velocity and limiting Description. minimal. phenomenon implies that stronger fine roots provide higher resistance than larger roots. Electronic Code of Federal Regulations. A machine should uproot the mature stock 20-25cm (8-10) lower ground. Vetiver will Multiple Benefits of The Vetiver System and Its Environmental native vegetation took over. Dafforn,1997)., results of the Vetiver Identification Program, by DNA typing have shown An overview on the applications of the vetiver grass system in It is important to understand that flora and fauna in an area have co-evolved and that plants and animals become interdependent. out these hedges can act as very effective diversion structures spreading and diverting Before donning these hats in the midday sun, a little water is sprinkled on them to protect them from sunstroke. Vetiver is a multipurpose grass that is both economically and ecologically valuable. Vetiver grass is the coolest grass in town! Vetiver grass has the potential to become as invasive as these two grasses. Proc. Chrysopogon zizanioides, commonly known as vetiver and khus, is a perennial bunchgrass of the family Poaceae.. Vetiver is most closely related to Sorghum but shares many morphological characteristics with other fragrant grasses, such as lemongrass (Cymbopogon citratus), citronella (Cymbopogon nardus, C. winterianus), and palmarosa (Cymbopogon martinii). Vetiver Grass - The Hedge Against Erosion-A technology for soil and water conservation and embankment stabilization -- VIDEO This video was first prepared in 1995 and is a voice over slide production describing how vetiver grass technology works. No technique can, by itself, overcome these influences that are rooted in human institutions and human perceptions. The four common ways to propagate vetiver are: 3.1 Splitting mature plants to produce bare root slips. 7.0 SOME OTHER APPLICATIONS OF VGT IN THE REGION, VGT is highly successful in the rehabilitation of old quarries where
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