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T Tests?


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T test?! Are you talking in terms of statistics in biological results?

http://en.wikipedia.org/wiki/Student's_t-test The wonders of wikipedia :lol: lol

Quadrats are used to sample plants etc that dont move. They can be used to measure:

Population density (number of individuals of a given species in a given area),

frequency (measuring the likelihood of fiding a given species within a quadrat in a given area), and

percentage cover (measuring the proportion of ground occupied by the species/ estimates percentage cover of species).

You can also have transect quadrats - 2 types:

a) A belt transect where quadrats are sampled continously all the way along the line

b) Interrupted transect where quadrats are sampled at intervals along the line

Satisfied? :)

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Guest topic starter..

awwwwwwwwww

thanks so much for that veerji...

erm....

yes satifised loll... its for coursework... that does help.. thnks.. 2day wrote up plan etc.. needs more detail tho :)

one more Q..... (SORRY MY TEACHER IS WELL CRAP) .... i have to measure two areas.. and need to use 30 quadrats blink.gif ... but i need to measure ph etc.. anyone knw what PH plants can grow etc in??

im soooo sorry for posting on this phorum... need help tho :lol:

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"The pH value of soil is one of a number of environmental conditions that affects the quality of plant growth. The soil pH value directly affects nutrient availability. Plants thrive best in different soil pH ranges. Azaleas, rhododendrons, blueberries and conifers thrive best in acid soils (pH 5.0 to 5.5). Vegetables, grasses and most ornamentals do best in slightly acidic soils (pH 5.8 to 6.5). Soil pH values above or below these ranges may result in less vigorous growth and nutrient deficiencies."

http://hgic.clemson.edu/factsheets/HGIC1650.htm

so i guess the optimum pH value for plant growth depends on the plant-type itself.

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Guest me again hehe
awwwwww thanks alot.... u a teacher??

thnx tonnes!

:)

lol naw im a uni student tongue.gif Did Bio in college huna..

most of the stuff i gave u was searched on google - I hardly remember any of this stuff lol

lollll thnx alot again... :lol:

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