• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Investigating: What is the best PH to have the fastest germination rate for green beans?

Extracts from this document...

Introduction

Investigating: What is the best PH to have the fastest germination rate for green beans? Independent variable: The PH of the solution Dependent variable: Amount of seeds germinated for different temperatures Control Variable: Volume of the PH solution, same amount of seeds per dish Hypothesis: The best condition for ph to germinate is when it?s not too acidic and not too alkaline. Equipment list: 1. PH solution 2,4,6,7,10 2. Cotton 3. Measuring Cylinder 4. Green seeds (50) 5. 5 dishes Method: 1. Gather all the equipment 2. Cut out pieces of cotton and put them in the dish 3. Place 50 green seeds in the 5 dishes on top of the cotton so each dish has 10 seeds 4. ...read more.

Middle

Results table Seeds Germinated (/10) Seeds didn?t Germinate(/10) Dish 1 (PH2) 6 4 Dish 2 (PH4) 10 0 Dish 3 (PH6) 0 10 Dish 4 (PH7) 9 1 Dish 5 (PH10) 10 0 Analysis: Based on the results table, we can see that as the PH gradually nears to 10, the seeds tend to germinate more compared to results from PH 2. The result table also shows that Dish 2 and 3 are inversely proportional because for Dish 2, all the seeds germinated and in dish 3, all the seeds didn?t germinate. Between these two dishes is also an anomaly because basing on the results, Dish 3 should have germinated more seeds than dish 2 because the results show that the seeds germinated the most when its more alkaline than acidic. ...read more.

Conclusion

This means PH 7 is the PH in which germination rate is the fastest hence the reason why farmers grow seeds using water. Also, the seed needs water to activate the enzymes that controls the germination process. Absorbed water also causes the seed to swell and soften which makes it possible for the plant to break through. The reason why seeds need to swell is because seeds increase in size when they are soaked in water. The bulb inside the seed prepares to break the outer layer/shell so that it could bury in the ground. Referring back to the enzymes, they also give it enough juice to push the seed to sprout to the surface. When that happens, the other ingredients such as light energy, C02 takes over. In conclusion, the PH that has the fastest rate of germination is when the PH is 7 or near to it. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Green Plants as Organisms section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Green Plants as Organisms essays

  1. Marked by a teacher

    An investigation into the effect of a germination inhibitor on the germination of seeds.

    3 star(s)

    So a suitable watering schedule should be thought of before the experiment is carried out.] o Number of pots. This is also indicated in the apparatus. [If more pots are used then there will be more results than expected and this could be confusing and cause problems.

  2. What are the best conditions for the germination of mung beans?

    However, these observation days were not spread out at even intervals. Day 1 of observations - 1 'day after experiment is set' Day 2 - 2 '...' Day 3 - 7 '...' Day 1: The beans at 60� have a milky white substance covering the testa, that is producing a molding smell, and none of the beans have germinated.

  1. The purpose of this investigation was to determine what effects different pH levels, more ...

    At different pH levels the enzymes shut off and no longer assist carrying out the chemical reactions in the cell, including photosynthesis. Therefore as pH drifts in either direction away from the optimal pH, the normal rate of photosynthesis would decrease.

  2. Factors affecting Germination

    Fill three pots with dirt leaving 1cm space at the top 9) Place 3-5 seeds in each pot 10) Cover with 5mm of the dirt 11) Place in a full sunlight area 12) Lightly water until all dirt in the pot is moist Frequency of watering 1)

  1. Factors That Germination Influence

    * Spacing - Each seed will be placed in a square matrix 2cm away from other seeds. * Temperature - The seeds will all be exposed to room temperature. * Light Intensity - All seeds will be placed in front of the same window.

  2. What are the best conditions for the germination of green beans?

    Do the same for the other three dishes 10) Record and evaluate results Modifications to method during practical performance - Instead of doing 0ml, 5ml, 10ml and 15ml, I decided to do 0ml, 5ml, 10ml and 20ml. I decided to do 20ml instead of 15ml as 10ml and 15ml were extremely similar.

  1. What are the best conditions for the germination of seeds.

    I will need to put the test tube in the water bath and ensure that it is staying at a constant temperature. I need to keep the seed type the same because some seed types might germinate under different conditions, and therefore it will give me inaccurate results.

  2. Experiment Report on Best Fertilisers

    Method- Step One- Gather 1kg of soil and place evenly into all the 6 pots; fill the pots ¾ quarters of the way.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work