In the germination tests of alfalfa seed in the spring of 1930, one seed was discovered with two embryos. They were both normal in all structures, equal in size and behaved normally in germination. Multiple embryo sacs in the ovules of alfalfa are frequent, but it has been supposed that not more than one is able to mature and function. The presence of two embryos is evidence that two embryo sacs may mature and function.
Proceedings of the Iowa Academy of Science
©1930 Iowa Academy of Science, Inc.
Watt, John R. and Martin, J. N.
"Polyembryony in Alfalfa and Sweet Clover,"
Proceedings of the Iowa Academy of Science, 37(1), 100-100.
Available at: https://scholarworks.uni.edu/pias/vol37/iss1/19