Spatial distribution of multiple herbicide resistance in Echinochloa colona (L.) Link.
نویسندگان
چکیده
منابع مشابه
investigation of dormancy and the effect of some environmental factors on germination of junglerice (echinochloa colona (l.) link.) seeds
junglerice, c4 plant and thermo-live of poaceae family, is one of the most serious grass weed in the tropics and subtropics. to determine methods for breaking dormancy, characterizing cardinal temperatures and investigating the effect of salinity and drought on junglerice seeds germination four separate experiments were conducted in the laboratory. results showed that the junglerice seed dorman...
متن کاملALLELOPATHIC ACTIVITY OF CROP RESIDUE INCORPORATION ALONE OR MIXED AGAINST RICE AND ITS ASSOCIATED GRASS WEED JUNGLE RICE (Echinochloa colona [L.] Link)
Weed suppression is one of the several benefits achieved by soil incorporation of crop residues and such suppression is believed to be allelopathic in nature. The allelopathic potential of different crop residues: viz. sorghum (Sorghum bicolor [L.] Moench), sunflower (Helianthus annuus L.), brassica (Brassica campestris L.) was evaluated in rice (Oryza sativa L.) and jungle rice (Echinochloa co...
متن کاملCharacterization of Fenoxaprop-P-Ethyl–Resistant Junglerice (Echinochloa colona) from Mississippi
A population of junglerice from Sunflower County, MS, exhibited resistance to fenoxaprop-P-ethyl. An 11-fold difference in ED50 (the effective dose needed to reduce growth by 50%) values was observed when comparing the resistant population (249 g ae ha ) with susceptible plants (20 g ae ha ) collected from a different field. The resistant population was controlled by clethodim and sethoxydim at...
متن کاملMultiple Herbicide Resistance in Lolium multiflorum and Identification of Conserved Regulatory Elements of Herbicide Resistance Genes
Herbicide resistance is a ubiquitous challenge to herbicide sustainability and a looming threat to control weeds in crops. Recently four genes were found constituently over-expressed in herbicide resistant individuals of Lolium rigidum, a close relative of Lolium multiflorum. These include two cytochrome P450s, one nitronate monooxygenase and one glycosyl-transferase. Higher expressions of thes...
متن کاملMultiple-Herbicide Resistance Is Widespread in Roadside Palmer Amaranth Populations.
Herbicide-resistant Palmer amaranth is a widespread issue in row-crop production in the Midsouthern US. Palmer amaranth is commonly found on roadside habitats in this region, but little is known on the degree of herbicide resistance in these populations. Herbicide resistance in roadside Palmer amaranth populations can represent the spread of an adaptive trait across a selective landscape. A lar...
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ژورنال
عنوان ژورنال: Chilean journal of agricultural research
سال: 2019
ISSN: 0718-5839
DOI: 10.4067/s0718-58392019000400576