2. Polyembryomy in corn.


Pedigree 481 produced a small proportion of Siamese twin stalks from a single kernel. 13 sets of twins and 1 triplet are recorded in a series of progeny tests involving 216 progenies an 481 pedigree and 8885 sown kernels. This is 1 multiple embryo per every 635. Only two progenies so far have revealed more than one multiple embryo, two sets of twins in 481(164), three sets of twins in 481(211). I would gladly furnish seeds to anyone interested in performing a more intensive study of this matter. Presently I am inclined to think that the tendency for multiple embryo may be inherited and that in strains possessing the tendency, the frequency for twins is low.