Results 21 to 30 of about 52,924 (286)

FERTILITY AND EMBRYO DEATH IN DOUBLE-YOLKED EGGS [PDF]

Reproduction, 1966
Summary. The fertility of double-yolked chicken eggs was 42·9% of which 27% contained two embryos. Single and double embryos died at different times of incubation. Sex ratio at 14 days and later was 44% males (P<0·02) for both types of embryo.
N S, Fechheimer, W P, Jaffe
openaire   +2 more sources

Regulation of cell polarity and double fertilization in Arabidopsis thaliana [PDF]

, 2016
Polar tip growth of the flowering plant pollen tube is crucial for double fertilization in higher plants. The molecular basis for tip growth in pollen tubes as well as in root hairs was studied as well as further aspects of double fertilization ...
Vogler, Frank
core   +1 more source

Arabinogalactan proteins as interactors along the crosstalk between the pollen tube and the female tissues

Frontiers in Plant Science, 2016
Arabinogalactan Proteins (AGPs) have long been considered to be implicated in several steps of the reproductive process of flowering plants. Pollen tube growth along the pistil tissues requires a multiplicity of signalling pathways to be activated and ...
Ana Marta Pereira, Ana Marta Pereira, Ana Lúcia Lopes, Ana Lúcia Lopes, Silvia Vieira Coimbra, Silvia Vieira Coimbra   +5 more
doaj   +1 more source

Effect of Varying Nitrogen and Micronutrient Fertilization on Yield Quantity and Quality of Sunflower (Helianthus annuus L.) Achenes

Agronomy, 2022
Sunflower is a good alternative crop in rotation, even in light soils. This is due to the changing climate, economic factors and the need to reduce agriculture pressure on the environment.
Wacław Jarecki
doaj   +1 more source

Live Imaging of Arabidopsis Pollen Tube Reception and Double Fertilization Using the Semi-In Vitro Cum Septum Method

, 2023
In flowering plants, the growth and guidance of the pollen tube (male gametophyte) within the pistil and the reception of the pollen tube by the female gametophyte are essential for double fertilization and subsequent seed development.
Desnoyer, Nicholas J, Grossniklaus, Ueli; https://orcid.org/   +1 more
core   +1 more source

Novel Classification Forms for Xenia

HortScience, 2020
The xenia effect refers to the phenomenon whereby the pollen genotype directly affects seed and fruit development during the period from fertilization to seed germination, which leads to different characteristics in phenotypic traits.
Qin Yang, Yan Fu , Yalan Liu, Tingting Zhang , Shu Peng , Jie Deng   +5 more
doaj   +1 more source

Sperm DNA integrity does play a crucial role for embryo development after ICSI, notably when good-quality oocytes from young donors are used

Biological Research, 2022
Based on the inconsistent literature published thus far involving infertile patients, whether intracytoplasmic sperm injection (ICSI) allows overcoming total fertilization failure due to sperm DNA fragmentation is still unclear.
Jordi Ribas-Maynou, Sergi Novo, Marc Torres, Albert Salas-Huetos, Sergi Rovira, Marta Antich, Marc Yeste   +6 more
doaj   +1 more source

Fertilization strategies and liming in no-till integrated crop–livestock systems: effects on phosphorus and potassium use efficiency [PDF]

Revista Brasileira de Ciência do Solo, 2022
In an integrated crop-livestock system (ICLS), system fertilization exploits the nutrient cycling imposed by animal grazing and increases the system efficiency.
Lucas Aquino Alves, Luiz Gustavo de Oliveira Denardin, Gustavo Duarte Farias, João Pedro Moro Flores, Dionata Filippi, Carolina Bremm, Paulo César de Faccio Carvalho, Amanda Posselt Martins, Luciano Colpo Gatiboni, Tales Tiecher   +9 more
doaj   +1 more source

Morphological Study on the Differentiation of Flower Buds and the Embryological Stages of Male and Female Floral Organs in Lespedeza davurica (Laxm.) Schindl. cv. JinNong (Fabaceae)

Plants
Lespedeza davurica (Laxm.) is a leguminous plant with significant ecological benefits, but its embryonic development mechanism remains unclear. We investigated the flower bud differentiation, megaspore and microspore formation, gametophyte development ...
Lirong Tong, Juan Wang
doaj   +1 more source

Nitric and nitrous oxide fluxes from intensifying crop agriculture in the seasonally dry tropical Amazon–Cerrado border region

Agrosystems, Geosciences & Environment, 2021
Rapid expansion and intensification of crop agriculture in the tropics may accelerate ecosystem losses of reactive nitrogen (N). We quantified emissions of nitric oxide (NO) and nitrous oxide (N2O) in forest, single‐cropped soybean [Glycine max (L.) Merr.
Alexandra Huddell, Christopher Neill, Leonardo Maracahipes‐Santos, Carlos Eduardo Pellegrino Cerri, Duncan Menge   +4 more
doaj   +1 more source