Reproduction Rate of Color Green and Brown Azolla as Exposed in Different Environments

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  • Topic: Fern, Azolla, Aquatic plant
  • Pages : 12 (3568 words )
  • Download(s) : 98
  • Published : March 6, 2013
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Chapter 1
INTRODUCTION
Azolla (mosquito fern, duckweed fern, fairy moss, and water fern) is a genus of seven species of aquatic ferns in the family Salviniaceae. They are extremely reduced in form and specialized, looking nothing like conventional ferns but more resembling duckweed or some mosses. Azolla is a free floating aquatic fern, which nowadays can be found in freshwater environments in temperate and tropical regions all over the world. It ranks among the fastest growing plants on Earth and due to its association with the nitrogen fixing cyanobacteria Anabaena azollae, it is independent of extern organic nitrogen. In that way Azolla is not only known to fix huge amounts of carbon, but as well to produce vast amounts of organic nitrogen. The nutrient, which mainly limits the growth of Azolla, is phosphorous.    Azolla is rich in protein, amino acids, vitamins and minerals. It is the only plant used as biofertilizer in agriculture or as a green manure for wetland rice in Northern Vietnam, and Central and Southern China because of its high nitrogen content. In early 1980’s the use of Azolla in South Cotabato, Philippines was widely published. Azolla plants have been described by the Chinese and Vietnamese as being miniature nitrogen fertilizer factories. Azolla is traditionally used throughout Asia and parts of Africa as feed for livestock, poultry and fish such as tilapia, red pacu, carps and other herbivorous and omnivorous species. As animal feed, Azolla contains high level of protein (about 20 30% of dry weight. Some literatures suggest higher protein level of 50 60%) and fat. At times Azolla is also used as human food. Azolla is important to reproduce for it contributes more useful benefits.

Conceptual Framework
REPRODUCTION RATE OF COLOR GREEN AND BROWN AZOLLA AS EXPOSED IN DIFFERENT ENVIRONMENTS OUTPUT
1.) Reproduction rate of green and brown azolla under the sun and on a covered or dim environment PROCESS
Exposition under the sun and on a covered or dim environment INPUT
* Nature
* Characteristics
* color

Statement of the problem
1) What color or type of Azolla (the green or brown) has the fastest reproduction rate in light and dim environments? 2.) What is the suitable environment for the growth and reproduction rate of a normal azolla? Is it under the sun (bright) or a covered dim environment? Hypothesis

Azolla is a plant fern which lives in paddy water and other freshwater environments. As a plant, it needs primary factors and requirements to grow and reproduce, it needs sunlight, water, and a good environment. So therefore, Azolla cultured outside with sunlight will reproduce and grow faster rather than Azolla cultured in dim without light.

Scope and Delimitation of the study
This study was limited and focused to the reproduction rate of the 2 colors (green and brown) of Azolla (Azolla Pinnata) when cultured under indoor and outdoor environment conditions. This research was conducted at GIFTED Learning Centre, Inc. Among the aspects considered were:

1.) Determination of what color of Azolla multiplies faster from indoor environmental condition and outdoor environmental condition. 2.) Determination of what kind of Azolla multiplies the fastest from the over-all samples and considering of what environmental condition ( bright – under the sun and dim – covered environment) it’s being exposed. Importance of the study

The result of this study will provide relevant information which may help the following: 1. Department of Health (DOH). Since azolla is proven to be a mosquito repellant, so by knowing on how and where to reproduce it, this agency can conduct a study in the prevention of dengue here in the Philippines. 2. Agricultural and fish industry owners. Due to its high protein, amino acid, vitamin and nitrogen content, azolla was proven to be substitute food of some herbivore, and omnivore species. It may also be used as biofertilizer in agriculture for some plants. So by...
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