male sterility


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male ste·ril·i·ty

the inability of the male to fertilize the ovum; it may or may not be associated with impotence.

male sterility

Etymology: L, mas + sterilis, barren
the inability of a man to produce sperm. Causes may include environmental factors, such as exposure to heat or radiation, or physiological factors, such as undescended testes, varicocele, prolonged fever, endocrine disorders, cancer chemotherapy, vasectomy, and abuse of alcohol or marijuana. See also infertility.

male ster·i·li·ty

(māl stĕr-ili-tē)
Inability of the male to fertilize the oocyte or ovum; may or may not be associated with impotence.

male sterility

The inability of a male either to produce sperm or to produce viable sperm, thereby prohibiting fertilization of the ovum. This may result from congenital factors, such as cryptorchidism or maldevelopment of the testicular ducts or testis, or acquired factors, such as radiation to, or surgical removal of, the testes.
See also: sterility
References in periodicals archive ?
All the genotypes have shown male fertility, except V7 and Indam, while JISL5 has shown segregation for male sterility.
Agrifound White A was showing male sterility in the field, but to our great surprise its cytoplasm was found to be male fertile.
Genotype Agrifound White A was showing male sterility in the field, while its PCR based molecular character indicated it to have N type cytoplasm.
Analysis of sterility observed in Agrifound White A indicated that it is probably of GMS ( Genetic male sterility) type and the male fertility is dominant over male sterility and is a new source of male sterility in onion.
1957, "The distribution of the male sterility gene in onion," Proc.
1995, "Mechanisms of genic male sterility," Crop Sci.
1943, "Inheritance of male sterility in the onion and the production of hybrid seed," Proc.
III, 1993, "Thoughts on cytoplasmic male sterility in CMS-T maize," Plant Cell, 5, pp.
Male sterility caused by cooling treatment at the young microspore stage in rice plants.
The effect of x and z alleles on ultrastructure of anthers and the mechanism of cytoplasmic male sterility in sugar beet.