Breeding method for introducing corn parthenogernesis by using amiprofos-methyl

2012 
The invention relates to a breeding method for introducing corn parthenogernesis by using amiprofos-methyl, and belongs to the field of planting breeding. The method comprises the following steps of: preparing an inductive agent of which the concentration is 5-200mumol/L from the amiprofos-methyl and water; performing introducing treatment: when filaments sprout to grow to about 2.5mm, spraying or daubing the inductive agent to the filaments, and harvesting to obtain homozygous genotype diploid seeds when seeds are mature; and during seeding in the next season, selecting and identifying by using the conventional method to select head progeny rows according with the breeding aim to obtain a homozygous corn selfing line. The breeding method for introducing the corn parthenogernesis by using the amiprofos-methyl has the positive effects of avoiding the artificial pollination, and being simple in method, easy to operate, low in cost, high in efficiency, and capable of being applied in large scale; in addition, the diploid seeds are directly formed and a chromosome doubling process is not required; and in the breeding method, more than 5 generations are shortened in comparison with a breeding method of the conventional corn selfing line.
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