Results 41 to 50 of about 5,038,040 (303)

Overview of Bee Pollination and Its Economic Value for Crop Production

open access: yesInsects, 2021
Simple Summary There is a rising demand for food security in the face of threats posed by a growing human population. Bees as an insect play a crucial role in crop pollination alongside other animal pollinators such as bats, birds, beetles, moths ...
S. Khalifa   +15 more
semanticscholar   +1 more source

Reusing Agricultural Wastewater for Tomato Production using Different Sources of Organic Fertilizer under the Conditions of the Delta Region [PDF]

open access: yesJournal of Plant Production
The availability of fresh water (both in quantity and quality) is decreasing and becoming a major concern worldwide. The agricultural sector is the largest consumer of fresh water, so there is an urgent need to improve the agricultural practices to fill ...
A. E. Abd El-Basir   +3 more
doaj   +1 more source

Beyond the various contrivances by which orchids are pollinated: global patterns in orchid pollination biology

open access: yesBotanical journal of the Linnean Society, 2023
Orchidaceae show remarkable diversity in pollination strategies, but how these strategies vary globally is not entirely clear. To identify regions and taxa that are data-rich and lend themselves to rigorous analyses or are data-poor and need attention,
J. Ackerman   +8 more
semanticscholar   +1 more source

Self-fertility studies of some sweet cherry (Prunus avium L.) cultivars and selections

open access: yesInternational Journal of Horticultural Science, 2004
Fruit set of two sweet cherry cultivars (Alex' and 'Stella' ) and four Hungarian selections have been studied over two years following open pollination, unassisted self-pollination (autogamy) and artificial self-pollination (geitonogamy).
Zs. Békefi
doaj   +1 more source

Self-pollination and expanding range [PDF]

open access: yesScience, 2015
Plant Biogeography![Figure][1] Species ranges are larger in plants that are able to self-pollinate than in those that must receive pollen from another individual, such as these dwarf monkey flowers in Oregon PHOTO: © DENNIS FRATES/ALAMY The mating system of a plant species may play an important role in determining its geographic range size ...
openaire   +1 more source

The role of late-acting self-incompatibility and early-acting inbreeding depression in governing female fertility in monkshood, Aconitum kusnezoffii. [PDF]

open access: yesPLoS ONE, 2012
Reduced seed yields following self-pollination have repeatedly been observed, but the underlying mechanisms remain elusive when self-pollen tubes can readily grow into ovaries, because pre-, post-zygotic late-acting self-incompatibility (LSI), or early ...
Yi-Qi Hao   +5 more
doaj   +1 more source

Self-pollination rate and floral-display size in Asclepias syriaca (Common Milkweed) with regard to floral-visitor taxa

open access: yesBMC Evolutionary Biology, 2014
BackgroundAnimals fertilize thousands of angiosperm species whose floral-display sizes can significantly influence pollinator behavior and plant reproductive success.
Aaron F. Howard, E. Barrows
semanticscholar   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

open access: yesAdvanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena   +3 more
wiley   +1 more source

High cross-pollination rate of Greek oregano (O. vulgare ssp. hirtum) with Common oregano (O. vulgare ssp. vulgare) under open field conditions as revealed by microsatellite marker analysis

open access: yesBiotechnology & Biotechnological Equipment, 2023
We studied the mode of pollination in Greek oregano (Origanum vulgare ssp. hirtum) under both controlled and open pollination conditions. When grown indoors without the presence of insects, Greek oregano plants did not develop any seeds, indicating a low
Marina Evgenieva Alekseeva   +4 more
doaj   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

open access: yesAdvanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou   +4 more
wiley   +1 more source

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