Results 91 to 100 of about 192,360 (282)

AN IMPERFECTLY COMPETITIVE MARKET MODEL OF THE U.S. LETTUCE INDUSTRY [PDF]

open access: yes
An econometric model was specified to represent the U.S. lettuce industry. Cursory examination of the industry structure suggests that imperfect competition may prevail in the lettuce market.
Hammig, Michael D.   +1 more
core   +1 more source

The inheritance of resistance to bacterial leaf spot of lettuce caused by Xanthomonas campestris pv. vitians in three lettuce cultivars. [PDF]

open access: yes, 2014
Lettuce yields can be reduced by the disease bacterial leaf spot (BLS) caused by the pathogen Xanthomonas campestris pv. vitians (Xcv) and host resistance is the most feasible method to reduce disease losses. The cultivars La Brillante, Pavane and Little
Antonise, Rudie   +5 more
core   +2 more sources

Landless peasants, soilless cultivation: British agricultural experimentation and intervention in post‐independence Iraq (1932–1958)

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
‘Greening’ is often depicted as an inherently benevolent practice, turning arid stretches of land into arable and fertile plots. However, by considering a longer history of place and taking archival records into account, such transformations are rendered more complex and, often, more fraught.
Zsuzsanna Ihar
wiley   +1 more source

BIOPROSPECÇÃO DE RIZOBACTÉRIAS PROMOTORAS DO CRESCIMENTO EM ALFACE

open access: yesColloquium Agrariae, 2010
The objective of this study was isolate bacteria from rhizosphere of lettuce and the characterization of antagonism against phytopathogenic fungus, production of auxin and phosphatases also analyzed the correlation of these parameters and growth ...
Eduardo A. Santos   +7 more
doaj   +1 more source

Human Norovirus Histo-Blood Group Antigen (HBGA) Binding Sites Mediate the Virus Specific Interactions with Lettuce Carbohydrates

open access: yesViruses, 2019
Lettuce is often implicated in human norovirus (HuNoV) foodborne outbreaks. We identified H-like histo-blood group antigens (HBGAs) on lettuce leaves as specific binding moieties for virus-like particles (VLPs) of HuNoV GII.4/HS194/2009 strain.
Malak A. Esseili   +9 more
doaj   +1 more source

CERTIFICATION AND SUPPLY RESPONSE IN THE ORGANIC LETTUCE MARKET [PDF]

open access: yes
The impact of supply relationships and certification programs on the organic lettuce market is examined using an integrated partial adjustment and asymmetric supply response model.
Lohr, Luanne, Park, Timothy A.
core   +1 more source

Nutritional and sensory evaluation of ready-to-eat salads during shelf life [PDF]

open access: yes, 2016
The evolution of the antioxidant and sensory properties of six commercially available ready-to-eat salads, rocket, iceberg lettuce, baby lettuce, lamb’s lettuce, curly endive and radicchio, was studied throughout the shelf life.
PRETI, Raffaella, VINCI, Giuliana
core  

Protected and productive: How greenhouses should deliver UK food security

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The United Kingdom produces less than 20% of its fruit and ~50% of its vegetables, leaving it highly import dependent and vulnerable to supply chain disruptions. Our study maps 2085 ha of existing greenhouses, over 70% more than 40 years old, and identifies where modern infrastructure could expand production.
Sven Batke   +3 more
wiley   +1 more source

Determination of the area index of lettuce leaves with a monocular camera

open access: yesMokslo Taikomieji Tyrimai Lietuvos Kolegijose
This study aims to develop a pixel value analysis method using a monocular camera to determine different growth stages of lettuce plants. After the lettuce plants have been detected in the images obtained using the YOLOv4 (You Only Look Once Version 4 ...
Laimonas Kairiūkštis   +2 more
doaj   +1 more source

LABOR STRIKES AND THE PRICE OF LETTUCE [PDF]

open access: yes
This paper examines the economic impact of the 1979 labor strike against lettuce producer-shippers in the Imperial Valley of California. The theory presented suggests that formidable problems are encountered by agricultural labor unions in obtaining ...
Carter, Colin A.   +3 more
core   +1 more source

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