Index Catalog // Hyrax

Some physiological and biochemical aspects of haloxyfop herbicidal activity alone or mixed with dicamba

O Criador:: Alvarado, Renan A.
Resource Type:: Dissertation
Full Text:: averaged ± 9% of the means. No GR50 values were calculated for the mixtures with dicamba because no

Persistence of prodiamine and norflurazon herbicides in soil and their activity on alfalfa rotational crops

O Criador:: Fischer, Vernon F.
Abstract:: Norflurazon [4-chloro-5-(methylamino)-2(3-(trifluoromethyl) phenyl)- 3(2H)- pyridazinone] and prodiamine (N3, N3-di-n-propy1-2,4- dinitro-6-(trifluoromethyl)-m-phenylenediamine) are two herbicides being considered for weed control in alfalfa. Rotational crops following alfalfa may be sensitive to residues of these herbicides. Studies were conducted in Oregon and Washington to examine the soil persistence and activity of these herbicides on...
Resource Type:: Masters Thesis
Full Text:: . Field corn and potatoes were injured significantly only when planted 3 and 5 MAT. No significant

Biology and control of tuber oatgrass (Arrhenatherum elatius (L.) presl. var. Bulbosum (willd.) spenn.)

O Criador:: Tanphiphat, Karin
Abstract:: Tuber oatgrass (Arrhenatherum elatius (L.) Presl. var. bulbosum (Willd.) Spenn.) is a perennial grass that often becomes a weed problem in Western Oregon. Control efforts using glyphosate often give unsatisfactory results. The effects of several factors on development of tuber oatgrass were investigated. Long days and cool temperatures (16/8h, 20/10C...
Resource Type:: Dissertation
Full Text:: . Corm formation is hereditary and independent of habitat (UNDERWOOD 1911). Soil conditions have no

Effects of lactofen herbicide on cellular uptake of glyphosate herbicide in malva parviflora L.

O Criador:: Wells, Barbara Heard
Abstract:: Time-course growth chamber studies were conducted on little mallow (Malva parviflora L.) to determine whether sublethal doses of lactofen (1'-(carboethoxy)ethyl-5-[2-chloro-4-(trifluoromethyl) phenoxy]-2- nitrobenzoate) would enhance uptake of glyphosate (N'-(phosphonomethyl) glycine) by altering membrane permeability. Lactofen-induced membrane peroxidation was determined by harvesting leaf discs, measuring stress ethylene evolution, and recording increases in...
Resource Type:: Dissertation
Full Text:: field bindweed grown under different environmental conditions had no effect on glyphosate uptake when

Dinitroaniline-herbicide resistance in goosegrass (Eleusine indica) : ecophysiological aspects

O Criador:: Valverde, Bernal E.
Abstract:: Growth of individual goosegrass (Eleusine indica (L) Gaertn.) plants of three dinitroaniline-herbicide resistant (R) and three susceptible (S) biotypes from North Carolina, South Carolina, and Mississippi was analyzed in greenhouse experiments. Leaf area and biomass measurements, including root, shoot, above-ground, and total dry weights were similar among the biotypes studied....
Resource Type:: Dissertation
Full Text:: , although no differences in above-ground biomass per plant were observed. Thus, the two biotypes differed

An evaluation of weed interference in rice grown on hydromorphic soils in West Africa

O Criador:: Diop, Amadou Makhtar
Abstract:: Field, screenhouse, and laboratory experiments were conducted to study weed interference in rice grown on hydromorphic soils at the International Institute of Tropical Agriculture (IITA) at Ibadan, Nigeria. Rice and weeds emerged at the same time, 1 week after planting. Weed dry weight was significantly reduced when the crop was...
Resource Type:: Dissertation

Behavior of metribuzin and ethylmetribuzin in soil

O Criador:: Peek, Daniel C.
Abstract:: The behavior of metribuzin [4-amino-6-(1,1- dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one] and ethyl-metribuzin (4-amino-6-(1,1-dimethylethyl)-3- (ethylthio)-1,2,4-triazin-5(4H)-one] in soil was studied to determine if differences in herbicide behavior in soil could explain (a) the inconsistent herbicidal activity of these chemicals and (b) the greater activity of metribuzin, as compared to ethyl-metribuzin. Metribuzin had higher activity than ethyl-metribuzin...
Resource Type:: Dissertation
Full Text:: organic matter content (16, 18, 20, 21). Harper (7), however, found no correlation between the

Intra- and interspecific interference between sweet corn (Zea mays L.) and a living mulch of white clover (Trifolium repens L.)

O Criador:: Fischer, Albert J.
Abstract:: Living mulches are vegetative covers that can grow in association with row crops and may prevent soil erosion and suppress weeds. Crop reduction from association with the living mulch is a frequent problem with this cultural practice. The interference between a white clover (Trifolium repens L. "New Zealand") living mulch...
Resource Type:: Dissertation

Biology of Bromus rigidus : interference in winter wheat, seed longevity in the soil, and vernalization requirements for flowering

O Criador:: Gleichsner, Jean Ann
Resource Type:: Dissertation
Full Text:: , but this dropped significantly 12 weeks after harvest (12.0 + 6.6%). Little or no research is

Factors affecting selective weedy rye (Secale sp.) control in winter wheat with the herbicide ethiazin

O Criador:: Diener, Phillip R.
Abstract:: Weedy rye (Secale spp.) is a weed in the winter-wheat- growing regions in the Pacific Northwest and surrounding regions. Ethiazin (4-amino-6-(1,1-dimethylethyl)-3- (ehtylthio)-1,2,4-triazine-5 (4H)-one) has shown selective control of weedy rye in the cultivar 'Stephens', (Triticum aestivum). Field, greenhouse, and outdoor pot experiments were conducted to determine factors influencing selectivity. Field...
Resource Type:: Masters Thesis
Full Text:: TABLES Table No. Page 2.1 Questionnaire with tallied information 18 from the survey sent out to all

Hyrax

Some physiological and biochemical aspects of haloxyfop herbicidal activity alone or mixed with dicamba

Persistence of prodiamine and norflurazon herbicides in soil and their activity on alfalfa rotational crops

Biology and control of tuber oatgrass (Arrhenatherum elatius (L.) presl. var. Bulbosum (willd.) spenn.)

Effects of lactofen herbicide on cellular uptake of glyphosate herbicide in malva parviflora L.

Dinitroaniline-herbicide resistance in goosegrass (Eleusine indica) : ecophysiological aspects

An evaluation of weed interference in rice grown on hydromorphic soils in West Africa

Behavior of metribuzin and ethylmetribuzin in soil

Intra- and interspecific interference between sweet corn (Zea mays L.) and a living mulch of white clover (Trifolium repens L.)

Biology of Bromus rigidus : interference in winter wheat, seed longevity in the soil, and vernalization requirements for flowering

Factors affecting selective weedy rye (Secale sp.) control in winter wheat with the herbicide ethiazin

Filtre sua busca

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Tipo de recurso

Rights Statement

Sujeito

Busca

Resultados da Busca

Filtre sua busca