Physiological investigations of nitrogen content and relation between nitrogen and chlorophyll content at some wheat cultivars were carried out at the outset of the flowering phase. Dependence of nitrogen content from mineral elements in the soil was established at the same time. Investigations were guided on unfertilized soil and four fertilization variants (N, NPK, NP and NK). The results ind...

In the current study, effect of boiled chicken manure (BCM) doses by fertigation, bokashi, and mineral fertilization on agronomic variables, bioactive compounds, nitrate levels two cultivars lettuce (romaine frisée types) one cultivar radicchio chicory was studied. Overall, higher variable values were found for leafy plants in bokashi-fertilized plants. The BCM 5, 7.5, 10% fertilization, genera...

Somatic embryogenesis is a developmental process during which plant somatic cells, under in vitro conditions, produce embryogenic cells that develop into embryos. an efficient method clonal propagation of plants. Mature embryos were used as explant source for callus formation and the produced compact, healthy most mature induced callus. showed similar morphologically to their non-somatic counte...

High temperatures affect reproductive growth and lead to yield loss in many crops. Field pea is heat sensitive, but little known about the effect of high on field ovules. We investigated impact ovules flowers at various nodes using chambers. exposed 6 cultivars exhibiting diverse tolerance 4 days (35 °C day/18 night) during early flowering. Post-treatment embryo sacs were assessed clearing by l...

Objective To investigate the effect of sperm DNA fragmentation on the fertilization rate, embryo development and pregnancy outcome of in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in a cohort of Chinese couples. Methods Infertile couples that had undergone assisted reproductive technology at our centre between January 2011 and December 2013 were included in this retro...

Agave tequilana is an angiosperm species that belongs to the family Asparagaceae (formerly Agavaceae). Even though there is information regarding to some aspects related to the megagametogenesis of A. tequilana, this is the first report describing the complete process of megasporogenesis, megagametogenesis, the early embryo and endosperm development process in detail. The objective of this work...

Background: Recently, it has been found that exposure of sperm to PVP may cause submicroscopic changes in sperm structure and the sperm nucleus. The PVPinduced nuclear damage may have been due to breakdown of sperm membranes. Consequently, it is probable that exposure of sperm to PVP may impair embryo development. There are apparently no detailed reports regarding the specific effects of PVP on...