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Parsley Defoliation Introduction Parsley Petroselinum crispum is a biennial herb commonly grown in household gardens Biennial herb meaning only able to be grown at certain times of the year It is most used for flavoring of salads and other foods The fresh parsley leaves can be eaten to make your breath fresher after eating onions and other stuff that leaves a bad taste or smells bad In this experiment we had to determine whether periodic defoliation of parsley leaves has an effect on total crop yield Defoliation is the removal of some leaves from the plant We had three pots of parsley seedlings and to one pot we removed one leaf the other pot two leaves and the third we used as a control plant and left it alone Materials Methods In this experiment we had three 10-cm plastic pots with potting soil and parsley seedlings which we put together After a couple of weeks we inserted pot labels marked 1 2 3 and began defoliation Each week after we would defoliate 1 leaf 2 leaves and the 3rd not touch and put them into an envelope and hold them in a binder At the end of the experiment we gave the three envelopes to our teachers to record the data Results The results for this parsley defoliation were very significant The parsley leaf that we took 1 leaf off each week turned out to weight the most The treatment average for plant 1 was 2054g Plant 2 where we took off two leaves had a treatment average of 1585g Plant 2 had the least significant difference It concluded that taking off more than 1 leaf may hinder the total crop yield of the parsley leaf The control plant that we didnt touch had an average treatment of 1750 g So concluded from this information we understand that defoliation can increase total plant
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