A potential strategy to decrease the levels of self-seed production during the seed increase stages of alfalfa (Medicago sativa L.) synthetic cultivar development is selection for decreased self-fertility. The underlying genetics of this trait have not been elucidated and, therefore, a study was designed to identify genetic determinants of alfalfa self-fertility. An F1 mapping population develo...

The article presents data of research on conservation and improvement soil fertility using precision farming technologies. study was carried out under conditions humid climate (North-West Russia, Leningrad region). Technologies for differentiated application nitrogen fertilizers were tested in the fields Agrophysical Research Institute. In comparison with high-intensity agricultural technologie...

Human spermatozoa are highly complex specialized cells designed to survive a long and perilous journey from the site of insemination to the upper reaches of the female reproductive tract where fertilization occurs. During this journey, these cells have to run the gauntlet laid down by the female immune system and time their physiological maturation so that as soon as an egg appears in the Fallo...

Strategies to accelerate progress of India's family planning programme are discussed and the importance of improving the quality and reach of services to address unmet contraceptive need by providing method choice is emphasized. Although there is a growing demand for both limiting and spacing births, female sterilisation, is the dominant method in the national programme and use of spacing metho...

Infertility affects approximately one in six couples during their lifetime. Obesity affects approximately half of the general population and is thus a common problem among the fertile population. Obese women have a higher prevalence of infertility compared with their lean counterparts. The majority of women with an ovulatory disorder contributing to their infertility have polycystic ovary syndr...

Being born with nonoptimal birth characteristics decreases the chance of becoming a father. Urogenital malformations as well as metabolic syndrome are more common in men born small for gestational age (SGA) and could be contributing factors to the reduced fertility rate seen in these men. It could imply that men becoming fathers by assisted reproductive technology (ART) more often are born with...

Assisted reproductive technologies refer to procedures in which the oocyte is handled or manipulated in vitro before replacement, either as an oocyte or an embryo. Because of rapid advances in this area, infertile couples may seek direct referral for assisted reproductive treatments, instead of trying simpler measures such as ovulation induction and intrauterine insemination. It is important to...

There is much debate not only about the morality of assisted reproductive technologies (ART) but also about how they should be classified. Should ART be understood as medical treatment for a disease (infertility) or should they be relegated to boutique medicine where they are seen as elective? How we answer this question affects our thoughts about whether ART should be covered by insurance comp...