Results 31 to 40 of about 13,762 (151)

Natural hybridization between wheat (Triticum aestivum L.) and its wild relatives Aegilops geniculata Roth and Aegilops triuncialis L.

Pest Management Science, Volume 79, Issue 6, Page 2247-2254, June 2023., 2023
In this study we quantified the natural hybridization under field conditions between wheat (Triticum aestivum) and two species of the wild relative Aegilops genus, A. geniculata and A. triuncialis, which are very abundant in the Mediterranean area. Abstract BACKGROUND Cultivated bread wheat (Triticum aestivum L.) spontaneously hybridizes with wild ...
Iñigo Loureiro, María Concepción Escorial, María Cristina Chueca   +2 more
wiley   +1 more source

Range‐wide floral trait variation reflects shifts in pollinator assemblages, consistent with pollinator‐mediated divergence despite generalized visitation

Oikos, Volume 2023, Issue 6, June 2023., 2023
Floral trait evolution mediated by pollinators is important in the diversification of flowering plants, yet few studies have demonstrated the range‐wide geographic variation in both floral traits and pollinators which represents a predicted precursor for pollinator‐mediated speciation.
Katherine E. Wenzell, Krissa A. Skogen, Jeremie B. Fant   +2 more
wiley   +1 more source

Evolutionary convergence on hummingbird pollination in Neotropical Costus provides insight into the causes of pollinator shifts

New Phytologist, Volume 236, Issue 4, Page 1572-1583, November 2022., 2022
Summary The evolution of hummingbird pollination is common across angiosperms throughout the Americas, presenting an opportunity to examine convergence in both traits and environments to better understand how complex phenotypes arise. Here we examine independent shifts from bee to hummingbird pollination in the Neotropical spiral gingers (Costus) and ...
Kathleen M. Kay, Dena L. Grossenbacher
wiley   +1 more source

Genetics of sterility behaviour in Thermo Sensitive Genic Male Sterility system in rice (Oryza sativa L. ) [PDF]

, 2023
A total of 1493 F2 populations of five crosses were evaluated to study the TGMS nature under high temperature regime at Coimbatore. The present study revealed that the observed variation among 1493 F2 populations showed 25 per cent of population ...
M. Vishvapriya1 , Asish K. Binodh1*, S. Manonmani2 , D. Kumaresan2 , A. Senthil3 and G. Senthil Kumar2
core   +2 more sources

Assessment of floral characteristics for hybrid wheat (Triticum aestivum L.) production in Texas

Agrosystems, Geosciences &Environment, Volume 5, Issue 1, 2022., 2022
Abstract Hybrid technology is indispensable for increasing the yield potential of wheat (Triticum aestivum L.). However, seed production costs and the self‐pollinating nature of wheat are limiting factors that necessitate the redesign of its floral characteristics to achieve high outcrossing ability.
Betul Sade, Amir M. H. Ibrahim, Nithya Subramanian, Jackie Rudd, Shuyu Liu, Gigi Opena, Stephen Baenziger   +6 more
wiley   +1 more source

Trade‐off mitigation: a conceptual framework for understanding floral adaptation in multispecies interactions

Biological Reviews, Volume 96, Issue 5, Page 2258-2280, October 2021., 2021
ABSTRACT Explanations of floral adaptation to diverse pollinator faunas have often invoked visitor‐mediated trade‐offs in which no intermediate, generalized floral phenotype is optimal for pollination success, i.e. fitness valleys are created. In such cases, plant species are expected to specialize on particular groups of flower visitors.
Kazuharu Ohashi, Andreas Jürgens, James D. Thomson   +2 more
wiley   +1 more source

Incomplete reproductive isolation and low genetic differentiation despite floral divergence across varying geographic scales in Castilleja

American Journal of Botany, Volume 108, Issue 7, Page 1270-1288, July 2021., 2021
Premise Divergence depends on the strength of selection and frequency of gene flow between taxa, while reproductive isolation relies on mating barriers and geographic distance. Less is known about how these processes interact at early stages of speciation.
Katherine E. Wenzell, Angela J. McDonnell, Norman J. Wickett, Jeremie B. Fant, Krissa A. Skogen   +4 more
wiley   +1 more source

Participatory plant breeding and the evolution of landraces: A case study in the organic farms of the Collserola Natural Park [PDF]

, 2019
Although consumers appreciate the genetic diversity among tomato landraces, traditional varieties have been displaced from commercial agriculture. Their cultivation through organic farming in natural parks can contribute to their resurgence.
Casals Missio, Joan, Rull Ferré, Aurora, Schober, Philipp, Segarra, Joel, Simó Cruanyes, Joan   +4 more
core   +2 more sources

Reaching the highest shelf: A review of organic production, nutritional quality, and shelf life of kale (Brassica oleracea var. acephala)

PLANTS, PEOPLE, PLANET, Volume 3, Issue 4, Page 308-318, July 2021., 2021
Since its inception in the early 20th century, organic agriculture has grown increasingly popular due to its focus on a holistic, environmentally friendly approach to crop production. However, it is comparatively limited in biomass production, disease management, nutritional quality, and postharvest treatment compared to conventional agriculture. These
Tony Reda, Pushaparajah Thavarajah, Robert Polomski, William Bridges, Emerson Shipe, Dil Thavarajah   +5 more
wiley   +1 more source

Reproductive biology of smooth cordgrass (Spartina alterniflora) [PDF]

, 2002
Smooth cordgrass (S. alterniflora) is a perennial grass that dominates the salt marsh in tidal wetlands along the Atlantic and Gulf Coast of North America and has been used for preventing soil erosion and restoring wetlands.
Fang, Xiaobing
core   +2 more sources