Tuesday, April 13, 2010

Update - Week 3, Day 21

Well, I'm already not living up to my promise. I took the pictures on Sunday but was too lazy to post (it's Tuesday now). I have done a pretty poor job of tracking my original plants but of the total I have planted and have physically made it so far (ones that survived the dogs and umbrella incidents) only 3 turned out to be duds. I think that's a pretty good germination rate.
Today I'd like to talk/post/quote wikipedia about the first 2 leaves called Cotyledon leaves. Here is the except from wikipedia:

cotyledon (pronounced /ˌkɒtəl.ˈiːdən/; "seed leaf" from Greekκοτυληδών kotylēdōn, from κοτύλη kotýlē "cup, bowl") is a significant part of the embryo within the seed of a plant. Upon germination, the cotyledon may become the embryonic first leaves of a seedling. The number of cotyledons present is one characteristic used by botanists to classify the flowering plants(angiosperms). Species with one cotyledon are called monocotyledonous (or, "monocots") and placed in the class Liliopsida. Plants with two embryonic leaves are termed dicotyledonous ("dicots") and placed in the class Magnoliopsida.
In the case of dicot seedlings whose cotyledons are photosynthetic, the cotyledons are functionally similar to leaves. However, true leaves and cotyledons are developmentally distinct. Cotyledons are formed during embryogenesis, along with the root and shoot meristems, and are therefore present in the seed prior to germination. True leaves, however, are formed post-embryonically (i.e. after germination) from the shoot apical meristem, which is responsible for generating subsequent aerial portions of the plant.
I find that pretty interesting and as you can see from the picture the first true leaves are forming!!!
Status: Truckin'

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