SAMPLE SIZE FOR EXPERIMENTS OF Eucaliptus saligna SMITH IN THE TREE NURSERY
DOI:
https://doi.org/10.5902/19805098344Keywords:
Sampling, eucalyptus, tree nursery, designingAbstract
The present paper work aimend at determining the sample size for experiments of Eucaliptus saligna SMITH in the tree nursery. The experiment eas established at Barba Negra Forest eserve located in the production area of Riocell S.A in Barra do Ribeiro- RS. To determine the ample size, a total of eight blocks with ninety six seedlings each block were used. The measured ariables were: the plant total height and the diameter of the connecting point of root and stem aeasured by a millimeter graduated pachymeter. It was observed that the results obtained in the nursery show that experimental design must be the block at random, using the tray as a lock. The size of the ideal sample to variable diameter is the with 26 seedlings for each eatment with significant minimum difference of 10% and nine seedlings for each treatment when difference goes to 20%. To the difference goes 20%. It is impossible to delineate an experiment when the difference goes to 5% to both variables.
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References
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