The atlas of florida plants provides a source of information for the distribution of plants within the state and taxonomic information. An imperata brasiliensis in nahilalakip ha genus nga imperata, ngan familia nga poaceae. Pdf allelopathic effects of legume cover crops on cogon grass. Presented here is summary information about the species imperata brasiliensis from the global compendium of weeds, and citations of references to this species as a weed. Imperata is a small but widespread genus of tropical and subtropical grasses, commonly known as satintails satintail grass species are perennial rhizomatous herbs with solid, erect stems and silky inflorescences.
Text is available under the creative commons attributionsharealike license. Pdf the use of dalapon weedkiller against imperata. Imperata is a serious problem for the smallholder rubber farmer in most of southeast asia in three respects. The effects of chemical treatment sequences on the chemical, physical, and mainly the thermal properties of imperata brasiliensis grass in the process used to obtain cellulose fibers were analyzed.
While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. Allelopathic effects of legume cover crops on cogon grass imperata brasiliensis trin. Imperata grasslands and imperata infested areas are widespread in many countries. Cogongrass national invasive species information center. Journal of agriculture and rural development in the tropics and subtropics, vol. Survey on chemical, physical, and thermal prediction. The present study presents the results of field and herbarium studies, supplemented by chromosome numbers, leaf anatomy, and starch gel electrophoresis. Impact of rubber tree planting pattern on imperata cylindrica dynamics. Cogongrass is easily confused with brazilian satintail imperata brasiliensis, a morphologically similar neotropical species. Floridas pest plants noxious weeds and prohibited aquatic plants glossary exotic a species with a natural range outside florida introduced to the state by people, weather, or any other means.
The use of dalapon weedkiller against imperata brasiliensis trin. Preparation of nanocellulose from imperata brasiliensis grass. The traditional control of imperata brasiliensis grasslands used by farmers in the peruvian amazon is to burn the grass. Methods for shortterm control of imperata grass in peruvian. Effect of acid hydrolysis conditions on the degradation. Plants profile for imperata brasiliensis brazilian satintail. Food pereyra 1938 indicated that bobolinks fed on seeds of. Dec 26, 2014 this page was last edited on 3 september 2017, at 20.
A revision of the weedy grass genus imperata is proposed. As the taxa can hybridize to produce fertile seed, hall 1998. Biological control of imperata cylindrica in west africa. The brazilian satintail imperata brasiliensis trin plant is actually considered an invasive plant. Imperata brasiliensis ufifas assessment university of. Imperata management strategies used in smallholder rubber. Exploring origins, invasion history and genetic diversity.
Effect of acid hydrolysis conditions on the degradation properties of cellulose from imperata brasiliensis fibers. The two can be distinguished by the number of stamens in each flower cogongrass flowers have two stamens while those of brazilian satintail have only one stamen. Native to asia, cogon grass imperata cylindrica is common in the humid tropics and. Performance of an improved fallow system in the peruvian. Prohibited from use in florida according to the federal noxious weed list, the florida department of agriculture and consumer services fdacs 5b64. Imperata cylindrica cogongrass, speargrass is a diploid c4 grass that is a noxious weed in 73 countries and constitutes a significant threat to global biodiversity and sustainable agriculture. This name is the accepted name of a species in the genus imperata family poaceae.
International centre for research in agroforestry, southeast asian regional research programme, bogor, indonesia. Under this condition, the imperata brasiliensis cns showed good stability in suspension. Preparation of nanocellulose from imperata brasiliensis grass using. The other grassland is wetter and is dominated by paspalum intermedium grasses located in lowland depressions or near the marshes gotz and di giacomo 2001. More than 1,000 acres 400 ha of cogongrass were planted for livestock forage and soil stabilization in florida the late 1930s and 1940s 32,3. Imperata brasiliensis, which occurs in the southeastern united states.
Methods for shortterm control of imperata grass in peruvian amazon. Imperata grassland rehabilitation using agroforestry and. For 1 we installed plots in grass patches of melinis minutiflora molasse grass, an alien grass and imperata brasiliensis satintail, a native grass that occurs in degraded areas. Imperata brasiliensis is an erect, tufted perennial grass with rhizomes, to 100 cm tall. All structured data from the file and property namespaces is available under the creative commons cc0 license. Flora brasiliensis, enumeratio plantarum in brasilia hactenus detectarum. Biological, mechanical, chemical and traditional methods of control were compared. Imperata brasiliensis brazilian satintail this plant can be weedy or invasive according to the authoritative sources noted below. Imperata cylindrica noxious weeds botany entomology. Definitions of terms are available in the gcw introduction. The website also provides access to a database and images of herbarium specimens found at the university of south florida and other herbaria.
In the study area the cassava is usually grown for 912 months, thus the cropping phase duration is up to 1 year in imperata fallow. Imperata brasiliensis, although recently listed as a federal noxious weed usdaaphis, 2010, is characterized by a lack of invasive characters, such as moreorless static, nonexpanding populations and frequent occurrence in mixture with other plant species hall. In the southeastern united states, the successful invasion of cogongrass imperata cylindrica has sometimes been attributed to hybridization with the previously naturalized imperata brasiliensis. Herbicide spraying and manual weeding have shown to be very effective in reducing aboveand belowground. This plant may be known by one or more common names in different places, and some are listed above. Any plant imported into the continental united states or canada in growing media from a third country unless the plant meets. Effect of acid hydrolysis conditions on the degradation properties of cellulose from imperata brasiliensis. Cogongrass infestations are being found primarily in south georgia but is capable of growing throughout the state. Morphological measurements were analyzed using principal component analysis and cluster analysis. Cogongrass is a highly invasive, perennial grass that is found on all continents, except antarctica. The objective of this study was to compare different methods of shortterm control.
Pdf in bioassay s and pot culture studies, the seed leachates, water extracts of residues and root exudates of. However, it is not a legal authority for statutory or regulatory purposes. The scientific name of brazilian satintail is imperata brasiliensis trin. Preparation of nanocellulose from imperata brasiliensis. Pdf invasion success in cogongrass imperata cylindrica.
Imperata brasiliensis information from the global compendium. Invasion success in cogongrass imperata cylindrica. Evaluating hybridization as a potential facilitator of. Exploring origins, invasion history and genetic diversity of. Well be happy to answer your queries monday through friday, from 9am to 5pm, philippine standard time. Cellulose nanoparticles cns were prepared by acid hydrolysis of the cellulose pulp extracted from the brazilian satintail imperata brasiliensis plant using a conventional and a total chlorine. Exploring origins, invasion history and genetic diversity of imperata cylindrica. Dost philippine council for health research and development 3rd flr dost main building, gen. Eddmaps distribution this map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. The best known species is imperata cylindrica, which is recognized as a devastating noxious weed in many places and cultivated as an ornamental plant in others. Ecotype variability and edaphic characteristics for. This page was last edited on 3 september 2017, at 20. Cellulose nanoparticles cns were prepared by acid hydrolysis of the cellulose pulp extracted from the brazilian satintail imperata brasiliensis plant using a conventional and a total chlorine free method. The following plants are excluded from this program for shipment to the united states.
The website also provides access to a database and images of herbarium specimens found at the university of south florida. Image 5376484 is of brazilian satintail imperata brasiliensis spikelets. Brazilian satintail, imperata brasiliensis cyperales. Methods for shortterm control of imperata grass in. Interspecific hybridization is cited as one potential mechanism for increased invasiveness, particularly among some grass species. Hosted by the usgs core science analytics and synthesis. When rubber hevea brasiliensis is planted in areas invaded with imperata, this aggressive lightdemanding weed very much delays the growth of young. Cogongrass produces numerous underground horizontal stems, or rhizomes, which are capable of rooting at each node and producing a new stem. Page designed through the cooperative efforts of interagency itis teams. Cogongrass is genetically and morphologically similar to imperata brasiliensis, and hybridization with this species is common.
Imperata brasiliensis, although recently listed as a federal noxious weed usdaaphis, 2010, is characterized by a lack of invasive characters, such as moreor. Initially, a statistical design of experiment was carried out using taguchi orthogonal array to study the hydrolysis parameters, and the main properties crystallinity, thermal stability. The license permits any user to download, print out, extract, archive, ven to the authors and source of the work. In surveys conducted in the coastalderived savanna benin and nigeria and southern guinea savanna ivory coast in africa some farmers indicated that i. The thermal properties were extensively investigated by a thermogravimetric analysis, and a thermal behavior prediction was carried out using kinetic parameters and simulation. Iiv december 1956 with 5 reads how we measure reads. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Files are available under licenses specified on their description page. It is the most economically important member of the genus hevea because the milky latex extracted from the tree is the primary source of natural rubber. Ecotype variability and edaphic characteristics for cogongrass imperata cylindrica populations in mississippi charles t.