PREVENTING OAT SMUT

TIME: FEBRUARY OR MARCH

Object: To show how to prevent oat smut in the succeeding crop by treating the seeds with formaldehyde before they are sown.

Material needed: Formaldehyde, oats, two plots.

DIRECTIONS

Purchase at the drug store 1 ounce of formalde

Pour it into Sprinkle this

hyde, which will cost about 5 cents. about 3 gallons of water and stir. preparation on the seeds until they are thoroughly saturated; spread the oats out thinly and let them dry.

Sow equal amounts on two adjoining plots, but let one plot be seeded with treated oats, the other with untreated oats.

At harvest time, count the number of smutted heads in the treated and the untreated plots.

QUALITY OF OATS

TIME: FALL OR SPRING TERM

Object: To find who has the best oats in the community.

Material needed: Half-bushel measure, oats, scales.

DIRECTIONS

Have several pupils weigh out I bushel of oats at their homes and bring weights to school. In measuring out the oats, draw a straight edge over the half-bushel, leaving the grain even with the top. Let the pupils tabulate their results as follows:

BOTANICAL STUDY OF THE COTTON PLANT

TIME: WHEN COTTON IS FLOWERING

Object: To learn some of the botanical characteristics of cotton.

Material needed: Cotton plant.

DIRECTIONS

Select a blooming cotton plant, study carefully and fill the blanks outlined below:

PROPORTIONS OF DIFFERENT PARTS OF THE COTTON PLANT

TIME: FALL TERM

Object: To find the proportion of roots, stems, leaves, bolls, etc., of the cotton plant.

Material needed: Ten cotton plants, hoe, knife, scales.

DIRECTIONS

I. When cotton is opening dig up 10 plants, taking care to obtain as much of the root system as possible. Separate the roots, stems, leaves, bolls, seed, and lint of the 10 plants.

2. Weigh and tabulate results as follows: