ok.
this will be my last post :)
i will SO (not) miss you, my beloved srp!!!!!!!
mwah mwah for all the memories XD
luv b

Here's a pic of the right side up plants in a random ice cream bucket (they werent grown like this, i just put them there to carry them up to the balcony- it would be unfair if they were grown in the bucket coz it's white). This was taken on the 6th June (sorry, i only got most of the photos off the camera today)

AND I ALSO FORGOT TO MENTION!!!
plant 8, as you can see in the table, died in the 1st week.
This was because I dodn't plant it well :(
Human error x100000.
anyways, it was raining for AGES so i didnt have to water them a lot, as i mentioned way earlier. but i did for the non rainy periods :)

I also forgot to mention something important:
In the 4th week of the experiment (between 6th and 13 of June, 3 of 4 of the right side up plants became root bound.
http://davesgarden.com/guides/terms/go/751/
This basically means that the roots have no more room to grow so they start to build up at the bottom and get tangled and stuff, and this affects their growth. I have a pic :)
The same amount of soil (and same type) was put in each of the bottles (except for the smaller ones- less was put in, but the same amount in the right side up and upside down plants), and since the bottles are clear, you can see some of the root growth. The upside down plants' roots aren't even halfway up the soil thing, which I can use to support GEOTROPISM.
Here is a general definition:
http://www.merriam-webster.com/dictionary/geotropism
Now, when talking about geotropism in plants, i found this a more useful site:
http://www.biology-online.org/3/5_plant_hormones.htm
Anyways, it basically means that plant roots will try to grow as best they can DOWN, and the shoots and stems etc, UP, like a normal plant, even if they are turned upside down.
This is supported by my experiment, because while the roots of the right side up plant have become root bound and run out of space, there is plenty of space that the roots havent used in the upside down bottles. This is because they want to grow downwards like a normal plant, due to its response to gravity.
The actual plant itself has been growing upwards, with it bending back up towards the sky. However, this could also be a result of it growing in the direction of light. (Phototropism)
Btw, tropism means
'the movement of a plant in response to a stimulus (an external force)'
http://www.enotes.com/science-fact-finder/plant-world/what-tropism
So you can kinda get why phototropism and geotropism sound a little alike.
ANYWAY, i will now add more pics, including rootbound-ness!!!!!
I hate it how when you upload an image, it goes to the top of the post :(
wait- does it? watever. i think it does.

ok, this is a pic of the RIGHT SIDE UP ones.
i forgot to say:
the larger bottles have a diameter of approx. 8.5cm and 6cm for the smaller ones. The diameters are the same for both the upside down and right side up ones. I just thought this would be useful coz i mentioned more debris in the right side up ones. I'll upload some pics of the inside (birds eye view) of the plant so you can see the grass growing and stuff.
Anyway, in case you're wondering, the pic was taken on my blacony and not where they were positioned for most of the experiment. I just brought them up so i could measure them and take pics and stuff.
I think i mentioned before, peas like plenty of sun, esp morning sun, so thats where i positioned all my plants.

This is a pic of my upside down plants :)

This shows grasses and stuff growing out of an upside down plant.
This shows grasses and stuff growing out of a right side up plant (please note that the big blurry green thing on the left is the actual pea plant- not a weed :). There arent many grasses and weed and stuff in the right side up ones)



I've also noticed that some of the upright plants have holes in the leaves and yukky debris and stuff in them. Once i found a cricket in one of the bottles, so in my discussion, I'll probably include how growing plants upside reduces risks associated with pests.
I don't know if its coincidental or whatever, but the upside down ones seem to have more grasses and stuff growing out of the top, compared to the ones right side up. It could be coincidental, since i used a mixture of half compost, half organic potting mix. Seeds could have also been distributed through wind or birds or whatever and the upside down plants have a clearer opening, with no plant in the way.
will include a picture of my plants in the next post
oh yeh- and for the table below, the heights are in cm's, measured with a plastic ruler (the same one used each time) and a measuring tape for when the upside down ones started curving up.