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27-07-2016

The Comparison of Cross-Pollination and Self-Pollination on Bell Pepper

2016-07-26_17-04-41Group Members: Somara Oum, Sokea Tha, Chatha Choy, Sokheang Um, Linna Ngang, Davann Yuth, Puthy Nha

Country: Cambodia

Objectives:

This group studied bell pepper plants in order to determine the most effective and beneficial way to pollinate the plants. There are two types of pollination, self-pollination and cross-pollination. The students chose to study how the different types of pollination affect the height of the bell pepper in the greenhouse and the method that produces the largest number and best quality of bell pepper seeds.

Hypothesis:

The hypothesis has two elements to it:

  1. Cross pollination would increase the number of seeds in the bell pepper production, more than self-pollination.
  2. Cross pollination would get the higher quality and quantity of bell pepper seeds.

Methodology:

The study was conducted in Gedera Agridera farm in an area with a Mediterranean climate characterized by hot and dry summers and cold rainy winters.

The students chose 2 bell pepper plants for self-pollination and 2 bell pepper plants for cross-pollination in the same greenhouse.

The students carefully performed the emasculation process for the cross-pollination for the plant. They chose the flower, removed the male organ and petals while remaining careful not to harm the female reproductive parts and avoiding contamination from viruses or bacteria from water on the pepper leaves.

The reviewed the number of seeds and measured the height of the plants using a meter and camera.

2016-07-26_17-05-15Economic Importance:

The quality of the product is very important. The students postulated that in order to grow the bell pepper well it was important to be familiar with the plants origin and behavior and choose carefully the type of variety planted, especially for a fruit production company.

Here is a list of the advantages of cross pollination and self-pollination:

Cross-Pollination:

-          Disease resistance

-          Stress resistance

-          Uniform Growth

-          More Species

-          More stronger and healthier than the mother

-          High yield

Self-Pollination:

-          Maintain the parental character

-          Maintain pure lines for Cross-pollination experiment

-          Don’t need to produce large number of pollen grains

-          Ensures seed production

-          Self-pollination eliminates some bad recessive character

-          Use less time to grow

-          Can grow it for two or three generations but it depends on condition.

2016-07-26_17-04-07Results:

The students displayed the results of their tests in a series of graphs, ultimately presenting data that showed that cross pollination resulted in more seeds. The height of the cross-pollinated plant compared to the self-pollinated plant were a little inconclusive, yet it still appears that cross-pollination can lead to better results.

In addition, the seeds in the fruits of both types of plants were counted and it was discovered that there were more seeds in fruits from cross-pollinated plants.

Therefore, the students recommend that farmers use cross-pollination in bell-pepper plants.

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