Research Background
1.0 Introduction
Hevea brasiliensis Müell.Arg. or the rubber tree is also known as the Para rubber tree and common rubber tree. This species belongs to the family Euphorbiaceae (Lusweti et al., 2011). The most essential feature of this tree is the white latex formed when the bark is cut or tapped. It is this white latex which is vulcanized to form rubber (Navie and Adkins, 2008). However, the rubber tree is prone to a wide range of foliar diseases, which causes yield losses of rubber latex. Colletotrichum leaf disease (CLD) is considered as one of the major foliar diseases that causes declining yields of rubber in Asia (Thambugala and Deshappriya, 2009).
According to Bailey and Jeger (1992), Colletotrichum is one of the most common and important genus of plant pathogenic fungi. At present, there have been about 900 species described or assigned to Colletotrichum. Based on perceived scientific and economic importance, this genus was recently voted the eighth most important group of plant pathogenic fungi in the world (Cannon et al., 2012). Almost all the crops grown throughout the world is susceptible to one or more species of Colletotrichum. This genus causes economically significant diseases of cereals and grasses, legumes,
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may provide helpful information to direct research towards optimizing the suitable fungicide to eradicate this species. Currently, anthracnose in Malaysia is mainly controlled by scheduled application of fungicides on seedlings in plantation area because of lack of knowledge of the factors affecting the disease severity under Malaysia’s conditions. Thus, the significance of this study will be to allow rubber tree planters to forecast a system that could regulate timing and amount of fungicide sprays on the seedlings and allow the application of more effective management strategies for the diseases caused by this fungus on the rubber trees in
The Bean Trees tackles such huge issues as divorce, child abuse, and illegal immigration through Taylor Greer, a girl from rural Kentucky who, while trying to start a new life for herself outside of her home town of Pittman County, ends up with an abandoned child who was molested in her previous home, and thus is reluctant to speak. Taylor names the baby girl Turtle, and when her car breaks down in Tucson, and she can’t afford to fix it, she decides to live there, renting from a recently divorced mom named Lou Ann. The Bean Trees is beautiful book about Taylor trying her best to raise Turtle despite the challenges presented. The book goes on to criticizes the United States’ immigration policies through the story of Esperanza and Estevan. Esperanza
As a result, plants have adapted ways to protect themselves against their natural predators by implementing “defense mechanisms”. Such adaptations may be structural or chemical, where structural mechanisms are simply parts of plant structural arrangement, such as thorns. Chemical defense mechanisms are more complex, and involve production of retarding chemical compounds and toxins. These volatile compounds are often released when the plant is damaged, and have physical effects on the predator.
Today, there is nearly a total of three thousand serial killers and ten thousand victims of their violent rampage in the United States. Part of those ten thousand victims are the eight, casualties of Dayton Leroy Rogers, aka The Molalla Forest Killer. Although their deaths were unfair and tragic, Roger’s experience allowed for more information to be contributed to help solve and prevent future crimes. Born in Idaho on September 30, 1953 and quickly moved to Oregon, Rogers was enrolled into a life full of crime, already shooting cars with BB guns in the seventh grade. By the time he was nineteen his desire for crime was fulfilled when he reached over to kiss a girl on their second date, but “according to police reports, he stabbed her in
“ A tree grows in Brooklyn” by Betty Smith is an interesting book. Every chapter talks about the poverty in the 20th century in America. The author, Betty, does not only refer poverty as the lack of food, shelter, etc. “Tree” is a coming of age story and that is one reason why I believe it should be in the ninth grade curriculum. This book teaches us about poverty, the fall of innocence, education, and sexuality.
Clive Waswa Ms. Meara Honors English 16 December 2016 Literary Analysis: The impact of Poverty “The Poverty line doesn't measure Poverty, it measures extreme Poverty," (Shapiro Marcy). Barbra Kingsolver’s book The Bean Trees, Focusses on the social justice issue Poverty. The Main character Taylor Leaves Kentucky, to escape poverty, she was determined to be different from all others who dropped out of school and had children. She dreamt of being different and achieving something with her life. In the The Bean Trees, Barbra Kingsolver challenges the idea that people in poverty are lazy and never work.
Mary Frances “Francie” Noles is the main character of A Tree Grows In Brooklyn; a story about a poor second generation immigrant family living in Brooklyn during the early 1900s. Despite the fact Francie is a young child, she has been made to endure the hardships of living in extreme poverty. She is inquisitive, lonely, resourceful, curious, and honest. Francie’s endearing, childlike wonderment and compassion are contrasted perfectly by her analytical, wise-beyond-her-years perception of the world. Francie’s nativity protects her from the sadness and demoralizing conditions of tenement life, but the hardships she can understand are surmounted by her tremendous strength of will making her a likeable character.
Tenement districts in Brooklyn throughout the early 1900s provided challenges that entire families were forced to handle. A Tree Grows In Brooklyn, by Betty Smith, depicts the Nolan family facing difficulties that even children had to overcome while they lived in one of these districts. Francie Nolan, the main character of the novel, is faced with the greatest difficulty of them all: growing up. Poverty was one aspect of Francie’s life that caused her to lack certain fundamental features of a regular child’s life. This is shown through Francie consistently being without food due to poverty, and having to discover for herself in a very difficult way that hunger was a painfully real issue.
Trees, not only have deep roots, also grow high and tall. In the novel To Kill a Mockingbird, by Harper Lee, the tree by the Radley’s House, constructs a deep meaning of how Boo reaches out to the children. Having an inadequate reputation around the whole community, Boo believes that to be noticeable to others, he should stretch out towards Scout and Jem. Through-out the novel, Boo Radley offering gifts in the knothole, represents his desire to be kind to the children. Offering gum, the Indian Head Pennies, and soap carvings, it symbolizes the strength of Boo’s growing fondness and bond with the kids.
The film Blackboard Jungle, written and directed by Richard Brooks, depicts the reality of the desegregated all male school, North Manual Trades High School. In this film Richard Dadier receives a job as a teacher and through the film he attempts to bring order and learning in to the classroom. The two main students in this film are Artie West and Gregory Miller. Artie West is white and is portrayed as the antagonist in the film because of his complete disregard of authority. In contrast, Miller is black and is initially defiant but in the end he agrees to Dadier terms.
However, after investigation through gel electrophoresis, the three kinds of plants were not identical. This relates to the
A Tree Grows in Brooklyn is a truly inspiring coming of age story about overcoming hardships and poverty with amiable characters that take the reader on an emotional experience on how life was like in the 1900s. The book’s main theme is if someone works hard and long enough, they will achieve their goals. The title of the book even supports this statement. There is this tree in Francie’s backyard that grew through the cracks of the cement. The tree has been cut downed and burned multiple of times, but still continues to strive into a beautiful tree, which Francie loves.
Pesticides and How it Works Abstract: A pest is "a plant or creature unfavorable to people or human concerns". Pesticide is Chemical or natural substance intended to slaughter or retard the development of pests that harm or meddle with the development of products, bushes, trees, timber and other vegetation coveted by people. Keywords: Antimicrobials, Antimicrobials, Herbicides Introduction:
Deforestation: Good or Bad? By Tristan McDermott (Final Copy) Deforestation is a controversial environmental issue, with some people believing that it is necessary to cut down trees to make room for things such as buildings and roads, while others believe that it is bad because it is destroying the environment. I believe that deforestation, while it does have a few positive effects, mainly has negative effects that massively outweigh the positive effects. According to an article written by National Geographic, (https://www.nationalgeographic.com/environment/global-warming/deforestation/) deforestation is a major contributor to global warming: “Trees also play a critical role in absorbing the greenhouse gases that fuel global warming.
The cool, upland air, flooding through the everlasting branches of the lively tree, as it casts a vague shadow onto the grasses ' fine green. Fresh sunlight penetrates through the branches of the tree, illuminating perfect spheres of water upon its green wands. My numb and almost transparent feet are blanketed by the sweetness of the scene, as the sunlight paints my lips red, my hair ebony, and my eyes honey-like. The noon sunlight acts as a HD camera, telling no lies, in the world in which shadows of truth are the harshest, revealing every flaw in the sight, like a toddler carrying his very first camera, taking pictures of whatever he sees. My head looks down at the sight of my cold and lifeless feet, before making its way up to the reaching arms of an infatuating tree, glowing brightly virescent at the edges of the trunk, inviting a soothing, tingling sensation to my soul.
Sustainable forest management requires three major criteria which are the maintenance of ecological processes within the forest (soil formation, energy flow, biogeochemical cycles (carbon, nutrient and hydrological cycles), maintenance of biodiversity of forest, improving the net social benefits derived from the mixture of forest uses within the constraints by considering the future. Forest provides habitats for more than half of the fauna and flora on the Earth (SCBD, 2001). Forest biome plays an important role in mitigating climate change by serving as carbon sinks (Hassan et al., 2005). Forest land is the most fundamental natural resources which become reduced mainly due to anthropogenic pressures. For proper management of land, it is essential to have information about existing land cover and about the naturalness of the land.