30 sweet corn breeding test to destruction of bacteria Erwinia chrysanthemi disease causes stem rot zeae pathovar of sweet corn all the test series 6 trials include the letter of 151XH104 isomer 4-57, 5-98-12-2-51-2, ATS5_03, ATS5_10, water, fuel and steam sterilization Pectobacterium carotovorum subsp carotovo.Rum (Ecc) 10 per Kit By planting the infection with the toothpick method to use steam sterilization and then throw away colonies of bacteria on farming, food, dips into 12 hours of age NA stems approximately 0.5 cm deep maize at level 2-3 cm above the soil off the mouth of the wound with Vaseline and covered with a transparent plastic to control relative humidity then evaluates the index.Disease at 2, 4 and 6 days after infection by the disease, each index is the percentage calculated level of disease (disease index,% DI) and dividing the disease resistance is 6 styles has found 18 percent seed corn disease ranging from 80% up to 3 corn varieties that are resistant to all 4 fuel fi isomer (resistance level.Resistant to extreme resistance, R) (Highly resistant, HR), SM1358, SM1625 and SN1293 species is of 6 varieties that resist the infection level in modulating isomer 3-resistance (R) to resistance (HR) is the species SM1297 SM1316, SM1351, SM2429, SM1330, and SN1164, 3 2 varieties that resist the infection level in modulating isomer resistance (R) to resistance (HR) is the species SK9735 SN1189 and SN1150, the number of varieties that resist infection 3 1 isomer in the letter (R) resistance level to much resistance (HR) is the species SK7557 SM1353, and S3X3070.
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