Difference in Herbicide Resistance to Various Taxonomic Populations of Common Lambsquarters (Chenopodium album) and Late-Flowering Goosefoot (Chenopodium strictum) in Hungary

Various populations of common lambsquarters (Chenopodium album L. # CHEAL) and late-flowering goosefoot (Chenopodium strictum Roth. # CHESG) plants were studied at the eight-to ten-leaf stage. Prior to measurement of fluorescence induction, the detached leaves were vacuum infiltrated with unformulat...

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Bibliographic Details
Published in:Weed science 1986-03, Vol.34 (2), p.175-180
Main Authors: Solymosi, Peter, Lehoczki, Endre, Laskay, Gábor
Format: Article
Language:English
Subjects:
ALLELES
ATRAZINE
BIOSISTEMATICA
BIOSYSTEMATICS
BIOSYSTEMATIQUE
CHENOPODIUM
CHLORIDAZON
CYTOTYPES
Fluorescence
GENE
GENES
HERBICIDAS
HERBICIDE
Herbicide resistance
HERBICIDES
Hexaploidy
HONGRIE
HUNGARY
HUNGRIA
Inductive reasoning
Leaves
MALEZAS
MAUVAISE HERBE
OPTICAL PROPERTIES
PESTICIDE RESISTANCE
Photosystem II
Physiology, Chemistry, and Biochemistry
Plants
PROPIEDADES OPTICAS
PROPRIETE OPTIQUE
RESISTANCE AUX PESTICIDES
RESISTENCIA A LOS PLAGUICIDAS
Tetraploidy
Triazines
WEED ASSOCIATIONS
WEEDS
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Summary:Various populations of common lambsquarters (Chenopodium album L. # CHEAL) and late-flowering goosefoot (Chenopodium strictum Roth. # CHESG) plants were studied at the eight-to ten-leaf stage. Prior to measurement of fluorescence induction, the detached leaves were vacuum infiltrated with unformulated atrazine [6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diamine], diuron [N′-(3,4-dichlorophenyl)-N,N-dimethylurea], and pyrazon [5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone]. The fluorescence induction measurements were then made 1 h after adaptation in the dark. The fluorescence induction curves of intact leaves were recorded with a laboratorybuilt apparatus. A xenon lamp was used to produce the actinic beam. Cytological tests were done on meristematic cells of the root tips of the seedlings treated in 2 nM 8-hydroxyquinoline. The cytotypes were hexaploids (among which were atrazine-susceptible, pyrazon-susceptible, atrazine-resistant, and pyrazon-tolerant populations), and tetraploids (among which were atrazine-susceptible and atrazine-tolerant populations).
ISSN:0043-1745
1550-2759
DOI:10.1017/S0043174500066649