Potassium Sorbate and Kamantigue Leaves Crude Extract Against Fusarium Wilt

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  • Topic: Banana, Fusarium oxysporum, Impatiens
  • Pages : 21 (5359 words )
  • Download(s) : 566
  • Published : August 27, 2012
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CHAPTER I

INTRODUCTION

Background of the Study Banana is a popular fruit. It's easy to peel, easy to eat, and easy to find, typically located in a prominent spot in the produce section of a grocery store. With the wheels of the grocery cart still moving, we don't stop to think about the battles the banana grower had to fight to provide a perfect fruit for our convenient consumption. Fusarium wilt or Panama disease is a severe disease of banana plants caused by the fungus Fusarium oxysporum f.sp. cubense. This disease kills susceptible banana plants and there is no cure up to this time and can wipe out entire plantations and neighboring areas if control and containment is not properly managed. The disease is spread by infected planting materials and soil and can move in water flowing over infected areas. Hence, the need for quarantine and farm equipment hygiene is important. (1). Fusarium wilt is the preferred name for what was first called Panama disease because it became prominent in that Central American country early last century. The fungus infects banana plants through the roots and invades the plant’s water conducting tissues. Once Fusarim oxysporum is introduced into banana gardens, it remains in the soil making it impossible to grow susceptible bananas in the same location for up to several decades. (2) The disease is resistant to fungicide and cannot be controlled chemically. (3)

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The fungal pathogens enter the banana tree through the xylem, and then use the water stream to spread the fungal spores throughout the entire plant. These spores lodge into the vessel walls and block the water flow, causing banana leaves to wilt and die. Panama disease often kills entire banana trees. The fungal pathogens can survive in the soil for almost 20 years. This disease is extremely difficult to control, and almost destroyed Central America's banana production back in 1940s and 1950s. (4) In a series of hearings conducted by the Sto. Tomas Sangguniang Bayan Committee on Agriculture, it was learned that FW, popularly known as Panama Disease (PD) in other banana-producing countries, can render the plantation or farm area unfit for banana cultivation for even up to 20 years unless the spores of the fungi that cling to the soil can be properly eliminated. (1) The researchers aim to find the other uses of potassium sorbate (wine stabilizer) and kamantigue plant (Impatiens balsamina), which could make the objects more beneficial to mankind – this time in the agricultural area. Philippines is a country which is abundant when it comes to banana.

Statement of the Problem/Objectives The main purpose of the study was to determine the efficacy potassium sorbate and Kamantigue (Impatiens Balsamina) as antifungal for the control of Fusarium wilt disease or Panama disease in bananas. Specifically, it attempted to answer the following corollary sub-problems:

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What are the mean diameter measurements (in mm) of the fungal growth of Fusarium oxysporum using potassium sorbate, kamantigue, the control variable? Are there significant differences in the mean diameter measurements (in mm) of the fungal growth of Fusarium oxysporum using potassium sorbate, kamantigue, the control variable? Is potassium sorbate capable to control the fungal growth? Is kamantigue capable to control the fungal growth?

Hypotheses There are significant differences in the mean diameter measurements (in mm) of the fungal growth of Fusarium oxysporum using potassium sorbate, kamantigue, the control variable. Both agents are capable to manage the growth of the fungi.

Significance of the Study It is visualized that this study will yield data that will help to know if potassium sorbate known as a food preservative and kamantigue plant can help in reducing the fungi amount or eradication of the Fusarium oxysporum in banana plants. Many knew that potassium sorbate restricts fungi in the foods, but now it will be tested in the field of...
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