Results 71 to 80 of about 14,013 (256)

"Two tribes": Handaxe shape variation shows distinct regional cultural groups in southeastern Britain between 424 000 and 374 000 BP

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT This paper examines regional and chronological variations in Acheulean handaxe morphology during Marine Isotope Stage 11 (c. 425–365 ka BP) in Britain. Using a data set of 737 handaxes from 13 securely dated sites in East Anglia and the Thames Valley, we apply three‐dimensional geometric morphometric analysis to examine morphological ...
Mark White   +5 more
wiley   +1 more source

Optimization of in vitro pollen storage conditions in seeded and low-seeded citrus genotypes

open access: yesEnvironment Conservation Journal
An in vitro pollen storage study was conducted using pollen from three seeded citrus plant genotypes, viz., ‘Mexican lime’, ‘W’. Murcott’ and ‘Mosambi’ and five seedlesscitrus genotypes, viz., ‘Lisbon lemon’, ‘Jaffa’, ‘Clementine’, ‘Hamlin’ and ‘Mukaku ...
Kunzang Lamo   +3 more
doaj   +1 more source

Effect of bio‐fertilization and edapho‐climatic conditions on chickpea nodulation, grain yields, and seed protein in a Mediterranean context: a meta‐analysis approach

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Chickpeas (Cicer arietinum L.) serve as a protein‐rich staple, particularly in Mediterranean countries, where they are often grown in marginal and water‐stressed areas. This meta‐analysis synthesized evidence from peer‐reviewed publications across Mediterranean countries to assess how chickpea rhizobial inoculation influences chickpea ...
Amira Hachana   +11 more
wiley   +1 more source

Application of Principal Component Analysis and Probabilistic Neural Networks in Ferralsols Recovery Evaluation Through Planting of Mabea Fistulifera and Eucalyptus Urograndis

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT This study presents an innovative assessment model for analyzing the evolution of degraded soils subjected to different reclamation strategies. The proposal combines statistical and artificial intelligence tools to jointly integrate multiple physical and chemical soil properties, allowing for a more synthetic view of the processes.
Melissa Alexandre Santos   +7 more
wiley   +1 more source

UJI VIABILITAS DAN PERKEMBANGAN SERBUK SARI BUAH NAGA PUTIH (HYLOCEREUS UNDATUS (HAW.) BRITTON & ROSE), MERAH (HYLOCEREUS POLYRHIZUS (WEB.) BRITTON & ROSE) DAN SUPER MERAH (HYLOCEREUS COSTARICENSIS (WEB.) BRITTON & ROSE) SETELAH PENYIMPANAN

open access: yesJurnal Biologi Udayana, 2010
The aim of the research was to determine pollen viability, pollen tube length and pollen development of white, red and super red dragon fruit after storage at different temperatures and times.
NI KADEK YUNITA SARI   +2 more
doaj  

Post-cryogenic regeneration of pollen of pear (Pyrus L.) cultivars from the VIR field genebank [PDF]

open access: yesBIO Web of Conferences
The viability of pollen after its storage in liquid nitrogen was tested on the example of 10 pear varieties from the field gene bank of the branch of the Maikop Experimental Station of VIR.
Verzhuk V.G.   +2 more
doaj   +1 more source

Effect of population reinforcement method, site, and plant characteristics on early establishment of the rare endemic plant species Minuartia smejkalii

open access: yesNordic Journal of Botany, EarlyView.
Many habitat‐specialist plant species have been endangered by fragmentation or destruction of their habitats. Minuartia smejkalii is a serpentinophyte endemic to the Czech Republic. It is highly threatened by recent habitat destruction and fragmentation, calling for effective conservation measures.
Alrun Siebenkäs   +3 more
wiley   +1 more source

Generalist‐pollinated Arabis alpina exhibits floral scent variation at multiple scales

open access: yesNordic Journal of Botany, EarlyView.
Plants that depend on animals for reproduction often use complex floral traits to attract pollinators. Floral scent is recognized as part of the pollinator attraction module and can be shaped by plant‐pollinator interactions. In recent decades, research has started to reveal the dynamic properties of floral scent, identifying patterns of spatial and ...
Hanna Thosteman   +5 more
wiley   +1 more source

In vitro pollen germination and pollen viability in passion fruit (Passiflora spp.)

open access: yesRevista Brasileira de Fruticultura, 2013
The use of Passiflora species for ornamental purposes has been recently developed, but little is known about pollen viability and the potential for crossing different species.
Taliane Leila Soares   +3 more
doaj   +1 more source

Sexual reproduction in invasive Japanese knotweed (Reynoutria japonica) in south Sweden

open access: yesNordic Journal of Botany, EarlyView.
To understand the potential for northward expansion of knotweeds into currently uninvaded regions, it is crucial to assess the potential for sexual reproduction alongside the ongoing vegetative spread. For that reason, we tested viability in Reynoutria japonica seeds in south Sweden, a region where viable seeds had not been previously reported ...
Tina D'Hertefeldt   +5 more
wiley   +1 more source

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