نتایج جستجو برای: fertilisation
تعداد نتایج: 2515 فیلتر نتایج به سال:
Effect of elevated CO2 and N fertilisation on soil nematode abundance and diversity in a wheat field
An experimental platform of free-air CO2 enrichment (FACE) was established in mid June of 2004 over a rice–wheat rotation ecosystem located at a suburb of Jiangdu, China. We compared the abundance and diversity of soil nematodes from a wheat field with high (225.0 kg N ha ) and low (112.5 kg N ha ) levels of N fertilisation exposed to the elevated and ambient CO2 during the wheat growing season...
DNA methylation is essential for the control of a number of biological mechanisms in mammals [1]. Mammalian development is accompanied by two major waves of genome-wide demethylation and remethylation: one during germ-cell development and the other after fertilisation [2] [3] [4] [5] [6] [7]. Most previous studies have suggested that the genome-wide demethylation observed after fertilisation oc...
OBJECTIVE There are currently no local data on the sperm retrieval and pregnancy rates in in-vitro fertilisation and testicular sperm extraction cycles, especially with regard to the presence of genetic abnormalities. This study aimed to determine the sperm retrieval and pregnancy rates in infertile couples who underwent in-vitro fertilisation and testicular sperm extraction for non-obstructive...
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