Results 91 to 100 of about 5,463 (224)

Lettuce mosaic virus: … causes internal rib necrosis, … stimulates rusty brown discoloration … in cultivar climax

open access: yesCalifornia Agriculture, 1973
Lettuce has been the most important winter vegetable crop in the Imperial Valley for the past four years, averaging about 42,000 acres grown, and an average gross value of about $35 million. Lettuce grown for harvest in midwinter (December 15 to March 15)
S Coakley   +8 more
doaj  

Pragas com potencial quarentenário para culturas oleaginosas envolvidas na produção da agroenergia. [PDF]

open access: yes, 2016
bitstream/CENARGEN/29600/1/cot161 ...
BATISTA, M. de F.   +4 more
core   +1 more source

Radar, Insect Population Ecology, and Pest Management [PDF]

open access: yes
Discussions included: (1) the potential role of radar in insect ecology studies and pest management; (2) the potential role of radar in correlating atmospheric phenomena with insect movement; (3) the present and future radar systems; (4) program ...
Klassen, W., Vaughn, C. R., Wolf, W.
core   +1 more source

Molecular studies on a complex of potyviruses infecting solanaceous crops, and some specific virus-host interactions [PDF]

open access: yes, 2003
This thesis constitutes a comprehensive analysis of the molecular and biological characteristics of three potyviruses (genus Potyvirus, family Potyviridae) naturally occurring in cultivated and wild species of family Solanaceae: Peru tomato virus (PTV ...
Spetz, Carl
core  

Pflanzengesundheitliche Bewertung der besonderen Risiken für den ökologischen Landbau durch die Einschleppung und Verbreitung von gebietsfremden Schadorganismen [PDF]

open access: yes, 2003
Der Ökologische Landbau ist aufgrund seiner Produktionsweise stärker als der konventionelle Pflanzenanbau durch die Einschleppung gebietsfremder Arten gefährdet.
Gärtig, Susanne   +2 more
core  

Inventory of observed unexpected environmental effects of genetically modified crops [PDF]

open access: yes
In general, it can be concluded that very few clearly unexpected effects were observed during the large scale post-release growing of herbicide-tolerant crops and Bt crops.
Brink, L., van den   +6 more
core   +1 more source

First Report of Beet western yellows virus Infecting Crocus sativus in China

open access: yesPlant Disease, 2018
H. Y. Zheng   +11 more
semanticscholar   +1 more source

Potato virus X : a new report from turnip (Brassica rapa L.) in India [PDF]

open access: yes, 1991
Garg, I.D.   +3 more
core   +1 more source

Virus yellows of sugar beet – exploring pathogen diversity and host resistance [PDF]

open access: yes
Sugar beet (Beta vulgaris ssp. vulgaris) is a crop primarily cultivated in temperate regions of the world for its high content of sucrose stored in the tap root, which is processed to obtain sugar.
Puthanveed, Vinitha
core  

Home - About - Disclaimer - Privacy