Results 81 to 90 of about 25,711 (188)

Technological Progress and Productivity in the Quinoa Sector [PDF]

open access: yes
The main objective of this case study is to analyze the effect that a significant technological innovation in quinoa processing has had on the productivity of companies devoted to this activity and the impact of such an innovation on the growth and ...
Carlos Gustavo Machicado   +1 more
core  

Efecto combinado de la escarificación y la temperatura en la germinación de semillas de leguminosas herbáceas Combined effect of scarification and temperature on the germination of herbaceous legume seeds

open access: yesPastos y Forrajes, 2011
Se utilizaron semillas de cinco leguminosas herbáceas con diferentes tiempos de colecta: Indigofera sp., Desmanthus virgatus, Clitoria ternatea, Crotalaria sp. y Centrosema pubescens, procedentes del banco de genes de la Estación Experimental de Pastos y
J Reino¹   +4 more
doaj  

Yellow Nutsedge (Cyperus esculentus L.) as an Agricultural Crop in Brazil: Tuber Dormancy Breaking

open access: yesAgronomy
Yellow nutsedge (Cyperus esculentus L.) is cultivated worldwide due to its agricultural and biotechnological potential. In Brazil, it is considered a weed, and we lack studies on its cultivation. Overcoming tuber dormancy is crucial for propagation. This
Márcio Antônio Godoi Junior   +5 more
doaj   +1 more source

Efecto de la escarificación húmeda y seca en la emergencia de plántulas de Albizia lebbeck (L.) Benth Effect of moist and dry scarification on the emergence of Albizia lebbeck (L.) Benth. seedlings

open access: yesPastos y Forrajes, 2010
Se evaluó la aplicación de diferentes métodos de escarificación para favorecer la emergencia de plántulas a partir de semillas de A. lebbeck almacenadas al ambiente, para lo cual se empleó un diseño completamente aleatorizado con arreglo factorial 4 x 13
Marlen Navarro   +3 more
doaj  

Establishment of seed germination and micropropagation protocols for Senegalia nigrescens, a potential anti-virulent species

open access: yesActa Agriculturae Scandinavica. Section B, Soil and Plant Science, 2018
This study describes seed germination and micropropagation of Senegalia nigrescens, an economic, medicinal and nitrogen-fixing species of South Africa. Seeds of S.
Olusola Bodede   +2 more
doaj   +1 more source

Une infection variolique de Quelea quelea (L) (Passeriformes, Ploceinae) [PDF]

open access: yes, 1975
Dans le cadre des examens effectués au Tchad lors de l'étude des possibilités de lutte contre le mange mil: Quelea quelea par des agents pathogènes, des lésions verruqueuses ont été notées sur la tête et les pattes de jeunes oiseaux au nid.
Barré, Nicolas
core  

Effect of Seed Dormancy Breaking Treatments on Germination and α-amylase Enzyme Activity in Seeds of Three Ecotypes of Astragalus (Astragalus cyclophyllu)

open access: yesپژوهش‌های بذر ایران, 2020
DOR: 98.1000/2383-1251.1398. 6.15.12.2.1575.41 Extended Abstract  Introduction: Seed dormancy, as a technique to avoid environmental stress, is important in preserving plant species and could be of various types including physiological, physical ...
Akram Rostamipoor   +2 more
doaj  

Scarification with sulphuric acid of Schizolobium amazonicum Huber ex Ducke seeds - Fabaceae. [PDF]

open access: yes, 2015
Impermeabilidade do tegumento da semente à água ocorre em muitas espécies, inclusive em Schizolobium amazonicum Huber ex Ducke. Para promover a germinação de sementes com tegumento impermeável um dos métodos recomendados é o uso de ácido sulfúrico (H2SO4)
CARVALHO, J. E. U. de   +2 more
core  

The HIV-associated tuberculosis epidemic--when will we act?

open access: yes, 2010
Despite policies, strategies, and guidelines, the epidemic of HIV-associated tuberculosis continues to rage, particularly in southern Africa. We focus our attention on the regions with the greatest burden of disease, especially sub-Saharan Africa, and ...
Chimzizi, Rhehab   +9 more
core   +1 more source

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