Results 271 to 280 of about 29,233 (320)
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Phytotoxic lignans ofLeucophyllum frutescens
Natural Toxins, 1999Bioassay-guided fractionation of the hexane:ethyl acetate (1:1) extract of the leaves of Leucophyllum frutescens (Berl.) I.M.Johnst (Scrophulariaceae) led to the isolation of its phytotoxic constituents diayangambin (1), epiyangambin (2), diasesartemin (3) and epiashantin (4). Phytotoxicity was demonstrated as inhibition of seed germination of Agrostis
A M, Rimando +3 more
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Weed Science, 1968
Preliminary field experiments with 3,4-dichloropropionanilide (propanil) indicated that methods of application had little effect on the activity of this herbicide. Growth of tomato (Lycopersicum esculentum Mill.) plants was reduced for about 7 days. Susceptible plants were killed in 3 to 7 days.
G. Hofstra, C. M. Switzer
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Preliminary field experiments with 3,4-dichloropropionanilide (propanil) indicated that methods of application had little effect on the activity of this herbicide. Growth of tomato (Lycopersicum esculentum Mill.) plants was reduced for about 7 days. Susceptible plants were killed in 3 to 7 days.
G. Hofstra, C. M. Switzer
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Soil Science, 1989
We studied zinc phytotoxicity with lettuce seedlings in solution culture. Zinc absorption in lettuce (Lactuca sativa L. cv. Climax) consisted of two distinct uptake phases; a slow uptake phase below 5 μM and a rapid uptake phase above 5 μM of solution Zn.
WADE L. BERRY, ARTHUR WALLACE
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We studied zinc phytotoxicity with lettuce seedlings in solution culture. Zinc absorption in lettuce (Lactuca sativa L. cv. Climax) consisted of two distinct uptake phases; a slow uptake phase below 5 μM and a rapid uptake phase above 5 μM of solution Zn.
WADE L. BERRY, ARTHUR WALLACE
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Phytotoxic activity of kiwifruit leaves and isolation of a phytotoxic substance
Scientia Horticulturae, 2019Abstract When aged kiwifruit (Actinidia deliciosa (A. Chev.) C.F. Liang et A.R. Ferguson) plants are replaced with young ones, the growth and productivity of the young plants were occasionally lower than expected. This symptom is typical of the replant problems reported in several fruit trees. Phytotoxic substances released from the plant are assumed
S. Okada +4 more
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Nature, 1952
2 : 3-DICHLORONAPHTHAQUINONE (I) is known to be an effective fungicide. It has been shown to be of value as a seed dressing1; but its use on foliage and fruit is limited because of the possibility of phytotoxic effects2. In an attempt to learn more about the reasons for this damaging action, we have prepared and tested the following compounds for ...
R. J. W. BYRDE, D. WOODCOCK
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2 : 3-DICHLORONAPHTHAQUINONE (I) is known to be an effective fungicide. It has been shown to be of value as a seed dressing1; but its use on foliage and fruit is limited because of the possibility of phytotoxic effects2. In an attempt to learn more about the reasons for this damaging action, we have prepared and tested the following compounds for ...
R. J. W. BYRDE, D. WOODCOCK
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Phytotoxic lesions of chromium in maize
Chemosphere, 2003Chromium (Cr) is fairly abundant in the earth's crust and ranks fourth among the 29 elements of biological importance. Besides natural sources, Cr enters biotic components of the ecosystem in various ways. Of other major industrial sources, tanning and chrome-plating industries are prominent sources.
D C, Sharma, C P, Sharma, R D, Tripathi
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Phytotoxicity to and uptake of RDX by rice
Environmental Pollution, 2007Phytoremediation is an emerging strategy to remediate soils contaminated with pollutants like explosives in which plants will uptake, degrade and/or accumulate pollutants. To implement this technology on a site contaminated with RDX, we chose rice, which is able to grow in lagoons, and we tested its ability to grow in soils with high levels of RDX and ...
Vila, Mireille +3 more
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Phytotoxicity of orellanine, a mushroom toxin
Toxicon, 1987Orellanine, a toxic principle of Cortinarius orellanus Fr., efficiently inhibited the photosynthetic activity of duckweed, Lemna minor L., at a concentration of 0.4 mM. A lower concentration (0.06 mM) blocked the O2 production in isolated spinach class A chloroplasts.
J M, Richard, P, Ravanel, D, Cantin
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Municipal Sludge-induced Phytotoxicity
Alternatives to Laboratory Animals, 2005Municipal sludge (MS), containing various types of environmental pollutants, can exert phytotoxic effects in plants. Seed germination, chlorophyll content, plant weight, root and shoot growth, and metal levels, were measured as endpoints to assess the phytotoxic effects of leachates of MS from Lucknow city in three plants, Triticum aestivum, Brassica ...
Richa, Srivastava +2 more
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Radioimmunoassay of the Phytotoxic Compound Zinniol
Journal of Immunoassay, 1987The phytotoxic compound zinniol, produced by phytopathogenic fungi such as Alternaria spp. and Phoma macdonaldii was conjugated to bovine serum albumine by the mixed anhydride method. Antiserum against zinniol was obtained by injection at multiple intradermal sites of rabbits. Sensitivity of the R.I.A.
J L, Montillet, M, Rossignol, P, Auriol
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