• 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...


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.


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.


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. Factors affecting Germination

    Situate in full sunlight 6) Lightly water until all vermiculite in the pot is moist. 7) Isolate three pots and water them three times a day 8) Isolate three pots and water them twice a day 9) Isolate three pots and water them once every three days Safety aspects Avoid direct contact with biological material

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

    Place each test tube in the test conditions(varying temperatures) 5) Observe the results and measure the growth of the radical and/or plumule after 3 days. Modifications: Room temperature will be changed by the air-con being on and off. I will need to place my room temperature test away from the air-con.

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

    pH is measured on a scale of zero to fourteen, with zero being the most acidic, fourteen being most alkaline and seven being neutral (Dr. Lemler, 2011). pH variation can have a number of effects on the growth of plants (G.

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

    - Instead of putting 3 green beans per dish I put 4 per dish. Three beans per dish was probably too little; there was plenty of space left and additional beans may supplement any failure eg. one of the other beans fail to germinate.

  1. Factors That Germination Influence

    This means that no water will enter the seed, preventing germination from starting and removing any trace amount of water inside the seed via osmosis. As the water potential around the seed increases, water will be taken into the seed and trigger germination.

  2. Experiment Report on Best Fertilisers

    Always wear chemical goggles and adequate skin cover. Inspect equipment before each day's work and correct any abnormal conditions. Water is the first aid treatment of choice when fertilizer particles get into the eyes or on the skin. In case of mishap, flush affected areas for 15 minutes and get medical help as soon as possible.

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