Wisconsin bankers' farm bulletin
Moore, R. A.
Wisconsin bankers' farm bulletin. Bulletin no. 1: now is the time to test seed corn PDF (896.8 KB)
IMPORTANCE OF TESTING SEED CORN An increased yield of corn can be secured by testing each ear before plant- ing, and rejecting those ears that (lo not germinate or that show lack of vigor or vitality. It is not such a tedious and difficult task to test each ear of seed corn as farmers are sometimes led to believe. Fifteen average ears of corn wvill plant one acre using four kernels to the hill, placing the corn three and one-half feet apart between the rows. 'When the importance of planting ear-tested seed corn is fully realized few farmers N ill plant corn without first submitting it to the test. SELECTING EARS FOR TESTING Onily the most nearly perfect seed ears, having kernels of a uniform %vidth, should be saved for seed. These should be selected from the store-room ati(i mnay be laid out on the floor or on tables to be convenient for making the test. Care should be taken to place the ears in a building wvlhere they will not be disturbed durimig the period of the test, for. if disarranged before coln- parison can be made, the result of the test cannot be determined. The ears nmay be arranged in sections of ten to correspond with the sections in the seed tester which are usually in tens. A nail should be driven between each section and the various sections, an(d each individual ear of each section should be mnubered. At least four kernels (sometimes six) are taken singly from different parts of each ear and place(d directly in front of the ear fromn which taken until kernels have been removed front all ears. THE SEED CORN TESTER Mlany devices have been recommended for the testing of seed corn, nearly all of whichl have morey or less mnerit. However, after using mnanly diflerent kinds of testers we find that the common square box tester shlown m ill Figure 1., is the best. Figure 1. A simple box tester for seed corn UTpon muslin cloth squareg'are drawn and trumbered, upon which are laid the kernels from each ear to be tested When tile tester is filled a sawdust pad is placild on top to keep the grain moist. A suitable box for miaking gernination tests can be inade fronm any commion boards or siding. This is a box 2fOx40 iniches and usually six inches deep. Sawdust is all excellent imaterial to use as a' germination bed but it should first be boiled in water in order to kill bacteria and mnoulds. The sawdust should be placed in the box about three inches deep anti shoulldt be moist but not soggy.
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