Results 71 to 80 of about 142,660 (208)

Arlenea delicata gen. et sp. nov., a new ephedroid plant from the Early Cretaceous Crato Formation, Araripe Basin, Northeast Brazil

Plant Diversity
Ephedroid macrofossils have been widely documented in Cretaceous deposits, including numerous from the Lower Cretaceous Yixian Formation of NE China. However, few ephedroid macrofossils have been reported from South America.
Alita Maria Neves Ribeiro, Yong Yang, Antônio Álamo Feitosa Saraiva, Renan Alfredo Machado Bantim, João Tavares Calixto Junior, Flaviana Jorge de Lima   +5 more
doaj   +1 more source

Comparative growth and management of white and red clovers [PDF]

, 2009
peer-reviewedThe aim of this paper is to provide the underpinning scientific basis for the optimum management of white and red clovers. Critical morphological and canopy characteristics which influence the yield and persistence of white and red clover in
Black, Alistair D, Laidlaw, A.S., Moot, D.J., O'Kiely, Padraig   +3 more
core  

Evolutionary Relationships of Courtship Songs in the Parasitic Wasp Genus, Cotesia (Hymenoptera: Braconidae) [PDF]

, 2019
Acoustic signals play an important role in premating isolation based on sexual selection within many taxa. Many male parasitic wasps produce characteristic courtship songs used by females in mate selection.
Bredlau, Justin P., Kester, Karen M.
core   +3 more sources

Levels of genetic polymorphism: marker loci versus quantitative traits [PDF]

, 1998
Species are the units used to measure ecological diversity and alleles are the units of genetic diversity. Genetic variation within and among species has been documented most extensively using allozyme electrophoresis.
Butlin R. K., Butlin R. K., Meyer J., Muller H. J., Neems R. M., Nei M., Ward R. D., Watt W. B., Watt W. B., Wu C-I.   +9 more
core   +3 more sources

Reproduction and Dispersal of Biological Soil Crust Organisms [PDF]

, 2019
Biological soil crusts (BSCs) consist of a diverse and highly integrated community of organisms that effectively colonize and collectively stabilize soil surfaces.
Aanderud, Zachary T., Kurbessoian, Tania, Lewis, Louise A., Pombubpa, Nuttapon, St. Clair, Larry L., Stajich, Jason E., Stark, Lloyd R., Warren, Steven D.   +7 more
core   +2 more sources

Supplementary Figures and Scoring Notes from Quantifying the complexity of plant reproductive structures reveals a history of morphological and functional integration

, 2023
This file contains supplementary figures S1-S7 along with detailed scoring notes and part type lists for all reproductive structures used in the study.
Leslie, Andrew B., Mander, Luke
openaire   +1 more source

Toxic effect of Syzygium guineense ethanolic extract on female reproduction in rats: An evidence from a 10 week repeated-dose toxicity study

Heliyon, 2023
Introduction: It has been reported that some herbal products affect reproduction. To date, reproductive toxicity of Syzygium guineense has not been investigated although the plant is widely used in treating fertility related problems. Thus, the objective
Melese Shenkut Abebe, Kaleab Asres, Yonas Bekuretsion, Samuel Woldekidan, Eyob Debebe, Abiy Abebe, Bihonegn Sisay, Girma Seyoum   +7 more
doaj   +1 more source

The Influence of Vitamin E and Omega-3 Fatty Acids on Reproductive Health Indices Among Male Workers Exposed to Electromagnetic Fields

American Journal of Men's Health, 2022
The present study aims to investigate the effects of using the supplementation of vitamin E and Omega 3 fatty acids on reproductive indices among workers in an automobile parts manufacturing plant.
Hamzeh Mohammadi, Farideh Golbabaei, Somayeh Farhang Dehghan, Hossein Imani, Fahimeh Ramezani Tehrani, Soheila Khodakarim Ardakani   +5 more
doaj   +1 more source

Characterisation of inflorescence development in Zea mays with four developmental mutants : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Biological Science at Massey University, Palmerston North, New Zealand [PDF]

, 2000
The genetic control of inflorescence development has been studied in great detail in the model dicotyledonous plants Arabidopsis thaliana and Antirrhinum majus. In contrast, little is known about the genetic regulation in monocotyledonous species.
Brown, Murray
core  

Molecular footprints of the Holocene retreat of dwarf birch in Britain [PDF]

, 2014
© 2014 The Authors. Molecular Ecology Published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original ...
Atkinson MD, Avise JC, Brown IR, Brown IR, Furrer R, Hammer Ø, Huntley B, Linnaeus C, Mellersh C, Phillips SJ, Pritchard JK, R Core Team, Rich TCG, Stace CA, Stebbins GL   +14 more
core   +1 more source