منابع مشابه
Sterility in Wheat Hybrids. I. Sterility Relationships and Endosperm Development.
Partial or complete sterility is of frequent occurrence in species crosses. Within the same genus certain species are sterile when crossed while ather combinations are completely fertile. Partial sterility may cause the elimination of certain classes of gametes and prevent desired recombinations of characters in the second generation. Sterility may also cause an abnormal vegetative development....
متن کاملFertility and Sterility
Objective: To examine the qualitative and quantitative characteristics of frozen-thawed spermatozoa recovered through the SpermPrep (ZBL, Inc., Lexington, KY) filtration method or the swim-up technique for the purpclse of intrauterine insemination (IUI) or other techniques for assisted reproduction. Design, Setting, Patients: Thirty pairs of frozen specimens purchased from three commercial seme...
متن کاملFertility and Sterility® Vol
Received June 5, 2001; revised and accepted October 16, 2001. Reprint requests: Wolfgang E. Paulus, M.D., Christian-Lauritzen-Institut, Frauenstr. 51, D-89073, Ulm, Germany (FAX: ++49-731-9665130; E-mail: [email protected]). [a] Department of Reproductive Medicine, Christian-Lauritzen-Institut. [b] Department of Traditional Chinese Medicine, Tongji Hospital, Tongji Medical University, Wuhan, P...
متن کاملImmediate sterility after vasectomy.
A series of 32 males who discontinued all forms of contraception following bilateral vasectomy and irrigation of each vas with 2.5 ml of 1/1000 solution of euflavine, have been followed for one year. During this period in which coitus continued with the same frequency as before vasectomy, no pregnancy has resulted. Semen specimens examined shortly after vasectomy in all subjects showed "moderat...
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ژورنال
عنوان ژورنال: The American Naturalist
سال: 1910
ISSN: 0003-0147,1537-5323
DOI: 10.1086/279178