Part 38 (1/2)

=Seed bed=: the layer of earth in which seeds are sown.

=Seed selection=: the careful selection of seed from particular plants with the object of keeping or increasing some desirable quality.

=Seedling=: a young plant just from the seed.

=Sepal=: one of the leaves in the calyx.

=Set=: a young plant for propagation.

=Silo=: a house or pit for packing away green food for winter use so as to exclude air and moisture.

=Sire=: father.

=s.m.u.t=: a disease of plants, particularly of cereals, which causes the plant or some part of it to become a powdery ma.s.s.

=Spike=: a lengthened flower cl.u.s.ter with stalkless flowers.

=Spiracle=: an air opening in the body of an insect.

=Spore=: a small body formed by a fungus to reproduce the fungus. It serves the same use as seeds do for flowering plants.

=Spray=: to apply a liquid in the form of a very fine mist by the aid of a spraying pump for the purpose of killing fungi or insects.

=Stamen=: the part of the flower that bears the pollen.

=Stamina=: endurance.

=Sterilize=: to destroy all the germs or spores in or on anything.

Sterilizing is often done by heat or chemicals.

=Stigma=: the part of the pistil that receives the pollen.

=Stock=: the stem or main part of a tree or plant. In grafting or budding the scion is inserted upon the stock.

=Stover=: as used in this book the word means the dry stalks of corn from which the ears have been removed.

=Subsoil=: the soil under the topsoil.