Results 101 to 110 of about 4,395 (239)

Controle de plantas daninhas na cultura do arroz de sequeiro (Oryza sativa L.) Weed control in upland rice (Oryza sativa L.)

open access: yesPlanta Daninha, 1981
Com o objetivo de verificar o controle de plantas daninhas com herbicidas na cultura do arroz de sequeiro, foi conduzido o presente experimento em um latossolo roxo, série Jaboticabal com 4,82% de m.o, utilizando-se a variedade Pratão Precoce. Foram util
R. Victoria Filho, J.B. Carvalho
doaj   +1 more source

Kinetin induces chromosomal abnormalities in African Blue Lily (Agapanthus praecox ssp. minimus) grown in In Vitro [PDF]

open access: yes, 2017
Kinetin has been reported to exert inhibitory effect when used in tissue culture and in some cases reverse the action of auxin and cause growth inhibition and retardation of root formations.
Jamilah Syafawati Yaacob,   +1 more
core   +1 more source

Effect of Butachlor Herbicide on Earthworm Eisenia fetida—Its Histological Perspicuity

open access: yesApplied and Environmental Soil Science, 2010
With the advent of the Green Revolution, there has been a quantum leap in the use of synthetic herbicides and pesticides throughout the world to sustain high yielding crop varieties.
Muthukaruppan Gobi   +1 more
doaj   +1 more source

Two Quality Assurance Measures for Pesticide Analysis of Wellwater: Degradation in Storage and GC/ELISA Comparison [PDF]

open access: yes, 1996
At the request of Environmental Protection Agency (EPA) project coordinators, two special quality assurance components were included in a study of herbicides in rural wells in Iowa.
Baker, James   +3 more
core   +3 more sources

The herbicide paraquat induces alterations in the elemental and biochemical composition of non-target microalgal species [PDF]

open access: yes, 2009
[Abstract]Huge quantities of pesticides are dispersed in the environment, affecting non-target organisms. Since paraquat affects the photosynthetic process, the biochemical composition of affected species should be altered.
Cid, Ángeles   +3 more
core   +2 more sources

Determining the lethal concentration (LC50 96h) of butachlor herbicide for Acipenser persicus and Acipenser stellatus fingerlings [PDF]

open access: yes, 2005
The toxic effects of the herbicide Butachlor were studied using a concentration of 0.4-1.3ppm and 0/1-1ppm on fingerlings of the Persian sturgeon, Acipenser persicus, and Stellatus sturgeon, Acipenser stellatus, respectively in 1999.
Esmaieli Sari, A., Padjand, Z., Piri, M.
core  

Pesticide distribution and use in vegetable production in the Red River Delta of Vietnam [PDF]

open access: yes, 2009
For a long time pesticides attracted interest from the Vietnamese governments and farmers for their positive effects in protecting crop yield losses resulting from pests and other plant diseases.
Brink, P.J., van den   +3 more
core   +2 more sources

Combined effect of land preparation methods and planting geometry on the performance of machine transplanted rice (Oryza sativa L.) [PDF]

open access: yes, 2016
Field experiment on effect of land preparation methods and planting geometry on growth and yield of machine transplanted rice (Oryza sativa L.) was conducted at Agricultural Research Station, Gangavathi, University of Agricultural Sciences, Raichur ...
Halepyati, A. S.   +2 more
core   +2 more sources

Ensaios sobre a metodologia do estudo da influência de três herbicidas em Spirodela punctata (G.F.W. Meyer) Thompson (Lemnaceae)

open access: yesActa Botânica Brasílica, 1988
O presente trabalho visa conhecer a taxa de multiplicação e o índice de mortalidade de S. punctata a diversas concentrações do butaclora, propanila e glifosato bem como comparar dois métodos diferentes de investigações (ensaio 1 e 2).
Durvalina Maria Mathias dos Santos   +1 more
doaj   +1 more source

PHOTOSYNTHETIC, BIOCHEMICAL AND ENZYMATIC INVESTIGATION OF Anabaena fertilissima IN RESPONSE TO AN INSECTICIDE-HEXACHLORO-HEXAHYDRO-METHANOBENZODIOXATHIEPINE- OXIDE [PDF]

open access: yes, 2009
A study on the heterocystous, nitrogen fixing cyanobacterium, Anabaena fertilissima was carried out to investigate the effect of an organochlorine insecticide (hexachloro-hexahydro-methano-benzodioxathiepineoxide, called as endosulfan) at different ...
Amb Manmeet Kaur   +3 more
core  

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