Results 91 to 100 of about 5,038,040 (303)

Pollination deficit in open-field tomato crops (Solanum lycopersicum L., Solanaceae) in Rio de Janeiro state, Southeast Brazil

open access: yesJournal of Pollination Ecology, 2013
More than 70% of world’s crops benefit from biotic pollination, and bees are their main pollinators. Despite the fact that some of these insects have been broadly studied, understanding the interactions between plant crops and their pollinators with a ...
Mariana Scaramussa Deprá   +3 more
doaj   +1 more source

Autonomous self-pollination and pseudo-fruit set in South African species of Eulophia (Orchidaceae)

open access: yes, 2009
Autonomous self-pollination is surprisingly common among orchids and is thought to provide reproductive assurance when pollinators are scarce. During investigations of the reproductive biology of the orchid genus Eulophia, consistently high rates of ...
C. I. Peter, S. Johnson
semanticscholar   +1 more source

Modeling Non‐GM Segregation Strategies at the Grain Elevator

open access: yesCereal Chemistry, EarlyView.
ABSTRACT Background and Objective As new opportunities arise for non‐genetically modified (non‐GM) products in grain markets, segregation becomes crucial but challenging in commodity‐friendly infrastructures such as grain elevators. This study developed probabilistic models using Monte Carlo simulations to evaluate three segregation strategies ...
Priyanka Gupta   +3 more
wiley   +1 more source

Key Challenges for Commercializing Perovskite–Silicon Tandem Solar Cells

open access: yesCarbon Energy, EarlyView.
This review discusses the scientific and technological challenges in advancing perovskite–silicon tandem solar cells (PSTSCs) from lab‐scale to commercial viability, focusing on long‐term stability, scalability, and economic feasibility. Key issues include intrinsic and extrinsic degradation factors, installation conditions, environmental impacts, and ...
Bilal Mehmood   +16 more
wiley   +1 more source

Effects of self-pollination and cross-pollination of Vaccinium darrowii (Ericaceae) and other low-chill blueberries.

open access: yes, 2009
Partial to complete self-incompatibility is normal in most Vaccinium L. (Ericaceae) species. Wild blueberry plants of several Florida provenances and species were self- and cross-pollinated in a greenhouse free of pollinators. Fruit set of V.
D. Chavez, P. Lyrene
semanticscholar   +1 more source

Mapping the US Bridgebuilding Field: Situating Organizations in the Ecosystem of Social Change

open access: yesConflict Resolution Quarterly, EarlyView.
ABSTRACT This article explores the ecosystem of bridge‐building initiatives in the United States. Drawing on an original database of 223 organizations, interviews with 7 staff across 6 organizations, and a literature review related to bridge‐building, polarization, and collective action, we first describe the range of existing initiatives and their ...
Gabrielle Mathews, Karen Ross
wiley   +1 more source

Justice for biodiversity: an X‐curve transformation pathway for a sustainable future

open access: yesFrontiers in Ecology and the Environment, EarlyView.
Decades of conservation action have failed to stem biodiversity loss, stimulating heated debates over which conservation strategies are the most effective. Do we focus on preserving sufficient wilderness, maintaining services from nature for societal well‐being, or protecting vulnerable socioecologies from injustice?
Camille PA Venier‐Cambron
wiley   +1 more source

Genetic variability in surinam cherry populations originated from self-pollination and cross pollination, estimated by AFLP

open access: yes, 2010
AFLP molecular markers were used aiming to study the genetic variability within and between Surinam cherry (Eugenia uniflora) populations, originated from self-pollination and open pollination of two selections (Pit 15 and Pit 52) of the Embrapa Clima ...
R. C. Franzon, C. Castro, M. Raseira
semanticscholar   +1 more source

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