Читать книгу The Cannabis Grow Bible - Greg Green - Страница 77
Cannabis Seed Structure
ОглавлениеSeed shape and structure differ from plant to plant and will vary even within cannabis varieties. The cannabis plant embryo has two cotyledons (dicotyledons),6 also known as the seed leaf. The cotyledons take root by the radicle, which is the root in embryo—both of which are at either end of the plumule, the shoot that acts like an embryonic plant stem. The epicotyl is the embryonic stem above the site of attachment of the cotyledons, while below this site is the hypocotyl.
For seedlings or clones fluorescent lights are a good way to keep the internode lengths short so that the young plants don’t grow too tall.
In cannabis seeds, nutrition in the form of stored food starts with the endosperm containing oils, proteins, or starches produced in seed reproduction. The cannabis seed is albuminous, meaning that it is made up of simple, water-soluble proteins that can be coagulated by heat; an egg white is another example.7 The actual seed, though, is physically recognized by its outer layer, a tissue called the integument that covers the ovule. The cannabis integument is of the hard type.