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 ?
2007) observed negative effects of male sterility inducing cytoplasm for kernel length in different cross combinations.
Newer types of male sterility needs to be studied which will reduce genetic vulnerability of onions and also useful for commercial production of bulb and seed onions at lesser costs (Gokce et al.
Unlike maize, the hybrid seed production in rice is not possible without availability of strong male sterility system.
To investigate whether the compound prevented conception at even lower levels than those cited in the company's study, Wolgemuth's team placed the treated male mice with females and found that reversible male sterility occurred with doses as low as 1.
P912 would likely have segregated for self-fertility, genetic male sterility, powdery mildew resistance, rhizomania resistance, hypocotyl color (R:rr), etc.
That cancellation was based in part on the apparent link between male sterility and exposure to DBCP among factory workers producing the product in 1977, as well as early product testing done by the manufacturers showing testicular effects on animals exposed to DBCP.
Although the double recessive genetic male sterility (GMS) line, ms5ms6, of upland cotton has been extensively used in breeding programs, possible mechanisms of pollen abortion remain unknown.
This plant had an unusually high number of seeds (379) probably because of partial cytoplasmic male sterility (CMS) instability.
Ashwaganda is also reputed to work as an aphrodisiac and is believed to help prevent male sterility and female infertility.
Phoenix experiments led by Benjamin Kaufman, who is now with Centre Analytical Laboratories in Pennsylvania, targeted lesquerella genes that confer a prized trait: male sterility.
That is, individuals bearing cytoplasmic male sterility (CMS) factors have the potential to develop as females.