The various chromosomal interchange stocks in my "Chromosome identification" set and in the "All-Arms marker" set were in different backgrounds. They were converted to inbred A188 by successive backcrosses. It is a sturdy plant with dark green leaves, a good ear with a strong tendency to be two-eared. The second ear often develops if the top ear is removed. When ears are bagged but not pollinated, one or two side ears develop from the shank at the base of the ear on some of the plants. If they are under the ear bag, I have been able to pollinate them many days later. Break off the early unpollinated ear. This is the behavior here at Minnesota.
The inbred also was used successfully by Ed Green, E to generate plants from tissue culture. It is not susceptible to smut. Merle Jenkins, M said it is susceptible to many other corn diseases. All plants are r-g r-g, some plants are C1 C1, some c1 c1. It has the dominant white cap factor which dilutes Y Y endosperms.
Origin: The A188 inbred came from: (4-29 x
64) 4-294, i.e., (4-29 x 64) backcrossed to 4-29 four times.
4-29 = Extraction out of Silver King
64(A48) = Extraction out of No. West Red Dent.
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