Sentence examples for fertilization has been from inspiring English sources

Over the past 30 years, in vitro fertilization has been reassuringly safe.

Successful fertilization has been problematic in the past because the density has been so low, he said.

A Boost for Fathers One of the most effective additions to in vitro fertilization has been intracytoplasmic sperm injection, or ICSI, which has been in use since 1992.

In plants, embryo development in the absence of fertilization has been reported in cases in which meiosis is bypassed leading to apomictic development, and parthenogenetic development from a reduced egg cell has been only reported in rare accidental cases [2].

Nitrogen is the nutrient most limiting growth of coastal Douglas-fir of the Pacific Northwest and, accordingly, urea fertilization has been applied through the region to improve Douglas-fir growth.

Richard Doerflinger, the chief lobbyist for the National Conference of Catholic Bishops, said that the church's moral opposition to in vitro fertilization "has been pretty clear from the outset, but in terms of political action we have to choose the issues that are raised for us".

The processes of sperm transfer and fertilization have been documented for only a few species of sponges.

One reason for Parliament's more adventurous approach is that human embryo research and in vitro fertilization have been intensely discussed in Britain since the birth in 1978 of Louise Brown, the first baby conceived in a test tube.

Pre-commercial thinning (PCT) and fertilization have been used successfully to increase growth of coniferous trees, vegetative succession, and overall stand structure in second-growth stands.

Zinc-deficient soil is cultivated in the cropland of about half of Turkey and India, a third of China, and most of Western Australia, and substantial responses to zinc fertilization have been reported in these areas.

Many factors controlling successful double fertilization have been identified in recent years, including important signalling pathways.