Results 51 to 60 of about 21,900 (191)

INDEPENDENT ORIGINATION OF FLORAL ZYGOMORPHY, A PREDICTED ADAPTIVE RESPONSE TO POLLINATORS: DEVELOPMENTAL AND GENETIC MECHANISMS [PDF]

open access: yes, 2016
Observations of floral development indicate that floral organ initiation in pentapetalous flowers more commonly results in a medially positioned abaxial petal (MAB) than in a medially positioned adaxial petal (MAD), where the medial plane is defined by ...
Bukhari, Ghadeer, Zhang, Wenheng
core   +1 more source

Petrobia (Tetranychina) harti (Acarina: Tetranychidae) a New Species for the Bulgarian Fauna

open access: yesРастениевъдни науки, 2014
Petrobia harti was identified for the first time in Bulgaria in 2010 on Oxalis corniculata (Oxalidacea) at Zvanichevo’s village greenhouse. Oxalis corniculata is a very important weed for greenhouses where are crowing vegetable crops, like cucumbers and
Nikola Atanasov   +2 more
doaj  

Genetic Diversity of Andean Tuber Crop Species in the in situ Microcenter of Huanuco, Peru [PDF]

open access: yes, 2010
peer reviewedAndean tuber crop species oca (Oxalis tuberosa Molina), ulluco (Ullucus tuberosus Caldas), and mashua (Tropaeolum tuberosum Ruiz & Pav.) play major roles in Andean communities.
Altieri   +45 more
core   +1 more source

Nitrofen herbicide for control of yellow oxalis in greenhouse roses

open access: yesCalifornia Agriculture, 1972
Yellow oxalis (Oxalis corniculata) is frequently a serious pest in greenhouse rose production. When steam fumigation precedes planting, the oxalis seedlings and plants are killed.
J Bivins, C Elmore
doaj  

Plant Community Richness and Composition in Formerly Dammed Reservoirs of Central Massachusetts [PDF]

open access: yes, 2020
Small dam removals have become common in the United States as many have begun to lose their function and efficiency, often with the goal of improving safety and/or restoring riverine ecosystems.
Wiater, Carrie L
core   +1 more source

Beyond EICA : understanding post-establishment evolution requires a broader evaluation of potential selection pressures [PDF]

open access: yes, 2011
Research on post-establishment evolution in nonnative plant populations has focused almost exclusively on testing the Evolution of Increased Competitive Ability (EICA) hypothesis, which posits that the lack of specialized herbivores in the invaded range ...
Atwood, Joshua P., Meyerson, Laura A.
core   +2 more sources

Non fu tutta colpa di padre Giacinto: spiegazioni troppo semplici e realtà (come sempre) complesse nel cammino di Oxalis pes-caprae L. dal Sudafrica al Mediterraneo

open access: yesAltre Modernità, 2013
Oxalis pes-caprae L. (= Oxalis cernua Thunb.) is a geophyte native to South Africa (Cape region) that was introduced in Europe in the second half of the eighteenth century as a cultivated plant.
Maria Adele Signorini
doaj   +1 more source

Fire responses of bushland plants after the January 1994 wildfires in northern Sydney [PDF]

open access: yes, 2013
In early January 1994 wildfires burned areas of bushland in northern Sydney (lat 33° 45’ S, long 151° 05’ E) in coastal south-eastern Australia. This paper reports observations of the fire responses for 828 species of bushland plants – 576 native species
Kubiak, P. J.
core  

Occurrence of rust disease caused by Puccinia oxalidis on Oxalis triangularis in the Czech Republic - Short Communication

open access: yesPlant Protection Science, 2014
This is the first report of Puccinia oxalidis causing leaf spot diseases on ornamental Oxalis triangularis subsp. papilionaceae cv. Atropurpurea in Moravia, Czech Republic. The macroscopic symptoms and microscopic features are described.
Ivana ŠAFRÁNKOVÁ
doaj   +1 more source

Production de références pour le désherbage de la culture de canne à sucre. La Réunion - 2005 [PDF]

open access: yes, 2006
Au cours de l'année 2005, dix-neuf essais d'efficacité d'herbicides de pré-levée ont été mis en place en culture de canne à sucre à La Réunion. Huit produits ont été testés seul ou en association (acétochlore, isoxaflutole, mésotrione, S-métolachlore ...
Canavi Botanica - REU   +7 more
core  

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