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You searched for: Subject term Triticum aestivum Remove constraint Subject term: Triticum aestivum Subject term Brassica napus Remove constraint Subject term: Brassica napus
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1. Phosphorus Utilization by Flax, Wheat, Rape, and Buckwheat from a Band or Pellet-like Application. II. Influence of Reaction Zone Phosphorus Concentration and Soil Phosphorus Supply

Author:
W. M. Strong; R. J. Soper
Source:
Agronomy journal 1974 v.66 no.5 pp. 601-605
ISSN:
0002-1962
Subject:
Brassica napus; Fagopyrum esculentum; Linum usitatissimum; Triticum aestivum; buckwheat; crops; dicalcium phosphate; flax; hydroxyapatite; isotope labeling; mixing; phosphorus; phosphorus fertilizers; rapeseed; root systems; roots; soil; solubility; wheat
Abstract:
... Two pot experiments have been conducted to study separately the influence of two factors on applied P utilization by four crops: flax (Linum usitatissimitm, L., cv. ‘Redwood’), wheat (Triticum vulgare L., cv. ‘Manitou’), rape (Brassica napus L., cv. ‘Tanka’), and buckwheat (Fagopyrum esculentum Moench). These crops vary greatly in their ability to utilize P from band or pelletlike phosphate applic ...
DOI:
10.2134/agronj1974.00021962006600050002x

2. Classification of Land Use and Crop Maturity, Types, and Disease Status by Remote Reflectance Measurements

Author:
R. W. Tinker; E. J. Brach; L. J. LaCroix; A. R. Mack; G. Poushinsky
Source:
Agronomy journal 1979 v.71 no.6 pp. 992-1000
ISSN:
0002-1962
Subject:
Avena sativa; Brassica napus; Glycine max; Hordeum vulgare; Triticum aestivum; Vicia faba; agronomy; barley; chlorophyll; discriminant analysis; faba beans; geometry; growth habit; land use; leaves; rapeseed; reflectance; soil; soybeans; spectral analysis; surveys; wheat
Abstract:
... Remote sensing techniques supply useful crop information in large area crop survey programs. In such programs, however, the spectral and spatial resolution, measurement geometry, and environmental correction cap abilities have been limited by the fixed and truly remote nature of the sensor platform. To extend the applications of existing systems, or to use new systems, some workers have started sm ...
DOI:
10.2134/agronj1979.00021962007100060025x

3. Copper Deficiency in Cereal and Oilseed Crops in Northern Canadian Prairie Soils

Author:
R. E. Karamanos; G. A. Kruger; J. W. B. Stewart
Source:
Agronomy journal 1986 v.78 no.2 pp. 317-323
ISSN:
0002-1962
Subject:
Hordeum vulgare; Linum usitatissimum; nutrient deficiencies; copper fertilizers; crop yield; Triticum aestivum; Brassica napus; prairies; forests; Saskatchewan
Abstract:
... Transitional grassland/forest light soils in Saskatchewan are often deficient in Cu. The high cost of micronutrient fertilizers necessitates extreme care in identifying micronutrient deficiencies and selecting effective products and methods of application. Comparison of tissue and grain or seed analysis for spring wheat (Triticum aestivum L.), canola (Brassica napus L.), and flax (Linum usitatissi ...
DOI:
10.2134/agronj1986.00021962007800020021x

4. Detrimental effects of volunteer Brassica on production of certain cereal and oilseed crops

Author:
Vera, C.L.; McGregor, D.I.; Downey, R.K.
Source:
Canadian journal of plant science 1987 v.67 no.4 pp. 983-995
ISSN:
0008-4220
Subject:
crop rotation; Hordeum vulgare; Linum usitatissimum; Brassica juncea; allelopathy; Triticum aestivum; Avena sativa; Brassica napus; plant competition; Brassica rapa subsp. oleifera; Sinapis alba subsp. alba
DOI:
10.4141/cjps87-135

5. Sl Family Recurrent Selection in Autogamous Crops Based on Dominant Genetic Male-Sterility

Author:
S. J. Knapp; T. S. Cox
Source:
Crop science 1988 v.28 no.2 pp. 227-231
ISSN:
0011-183X
Subject:
crossing; Brassica napus; Gossypium hirsutum; Triticum aestivum
Abstract:
... Recessive genetic male-sterility has been widely used to facilitate crossing in recurrent selection programs in autogamous crop species. Dominant genetic male-sterility, on the other hand, has not been widely used. Mass and half-sib family selection schemes have been described for the dominant male-sterile program. Our objective was to describe S₁ family recurrent selection schemes and expected se ...
DOI:
10.2135/cropsci1988.0011183X002800020008x

6. Use of Unsaturated Salt Solutions to Generate Leaf Tissue Water-Release Curves

Author:
N. J. Livingston; E. de Jong
Source:
Agronomy journal 1988 v.80 no.5 pp. 815-818
ISSN:
0002-1962
Subject:
turgor; Hordeum vulgare; water stress; Triticum aestivum; Brassica napus; Brassica rapa subsp. oleifera; leaves
Abstract:
... Osmotic adjustment and changes in cell wall elastic modulus are important processes that enable plants to maintain physiological activity and prolong leaf survival as plant water deficits increase. This paper describes a simple and practical technique to produce tissue water-release curves that allows many measurements of osmotic potential (π), elastic modulus (ε), and apoplastic water fraction (A ...
DOI:
10.2134/agronj1988.00021962008000050025x

7. Canola yield and profitability as influenced by volunteer wheat infestations

Author:
O'Donovan, J.T.; Kirkland, K.J.; Sharma, A.K.
Source:
Canadian journal of plant science 1989 v.69 no.4 pp. 1235-1244
ISSN:
0008-4220
Subject:
mathematical models; weed control; profitability; plant density; crop yield; Triticum aestivum; Brassica napus; crop-weed competition; Brassica rapa subsp. oleifera; Saskatchewan
DOI:
10.4141/cjps89-145

8. Common amino acid sequence domains among the LEA proteins of higher plants

Author:
Dure, L. III.; Crouch, M.; Harada, J.; Ho, T.H.D.; Mundy, J.; Quatrano, R.; Thomas, T.; Sung, Z.R.
Source:
Plant molecular biology 1989 v.12 no.5 pp. 475-486
ISSN:
0167-4412
Subject:
Hordeum vulgare; Gossypium hirsutum; Oryza sativa; Daucus carota; embryo (plant); amino acid sequences; Triticum aestivum; Brassica napus; plant proteins
Abstract:
... LEA proteins are late embryogenesis abundant in the seeds of many higher plants and probably universal in occurrence in plant seeds. LEA mRNAs and proteins can be induced to appear at other stages in the plant's life by desiccation stress and/or treatment with the plant hormone abscisic acid (ABA). A role it, protecting plant structures during water loss is likely for these proteins, with ABA func ...
DOI:
10.1007/BF00036962
PubMed:
24271064

9. Effects of 'volunteer' wheat and barley on the growth and yield of rapeseed

Author:
Marshall, G.; Morrison, I.N.; Friesen, L.; Rother, W.
Source:
Canadian journal of plant science 1989 v.69 no.2 pp. 445-453
ISSN:
0008-4220
Subject:
Brassica napus; Triticum aestivum; Hordeum vulgare; crop yield; crop-weed competition; plant density; regression analysis; Manitoba
DOI:
10.4141/cjps89-056

10. Appraisal of the Nitrogen-15 Natural-Abundance Method for Quantifying Dinitrogen Fixation

Author:
E. Bremer; C. van Kessel
Source:
Soil Science Society of America journal 1990 v.54 no.2 pp. 404-411
ISSN:
0361-5995
Subject:
Brassica napus; Hordeum vulgare; Lens culinaris; Linum usitatissimum; Pisum sativum; Triticum aestivum; barley; flax; isotope dilution technique; lentils; nitrogen; nitrogen fixation; peas; planting; seasonal variation; soil; spring; spring wheat; stable isotopes; winter wheat
Abstract:
... Several investigators have questioned the use of the ¹⁵N natural-abundance method of estimating N₂ fixation because of variability in soil δ¹⁵N and small differences between the δ¹⁵N of soil N and atmospheric N. Investigations were conducted to compare the ¹⁵N natural-abundance and ¹⁵N-isotope-dilution methods for estimating N₂ fixation of field-grown pea (Pisum sativum L.) and lentil (Lens culina ...
DOI:
10.2136/sssaj1990.03615995005400020018x

11. Matric and Osmotic Potential Effects on Seedling Emergence at Different Temperatures

Author:
N. J. Livingston; E. de Jong
Source:
Agronomy journal 1990 v.82 no.5 pp. 995-998
ISSN:
0002-1962
Subject:
seed germination; soil temperature; seedlings; osmotic pressure; drought; water stress; Triticum aestivum; seedling emergence; Brassica napus; Brassica rapa subsp. oleifera
Abstract:
... Crop seeds and seedlings are exposed to drought, salinity and/or low soil temperatures in some areas. Therefore, the combined effects of these stresses on germination and emergence is of considerable interest. A growth room study was conducted to determine the effects of matric and osmotic potential at different temperatures on the rate and total number of seedling emergence for wheat (Triticum ae ...
DOI:
10.2134/agronj1990.00021962008200050031x

12. The effect of deep banding N and P fertilizer on the yield of canola (Brassica napus L.) and spring wheat (Triticum aestivum L.)

Author:
Nuttall, W.F.; Button, R.G.
Source:
Canadian journal of soil science 1990 v.70 no.4 pp. 629-639
ISSN:
0008-4271
Subject:
Triticum aestivum; Brassica napus; nitrogen fertilizers; phosphorus fertilizers; seeds; crop yield; straw; application rate; grains; band placement
DOI:
10.4141/cjss90-066

13. A comparison of broadcast and drill methods for no-till seeding winter wheat

Author:
Collins, B.A.; Fowler, D.B.
Source:
Canadian journal of plant science 1992 v.72 no.4 pp. 1001-1008
ISSN:
0008-4220
Subject:
plant development; sowing date; no-tillage; Linum usitatissimum; plant establishment; crop yield; Triticum aestivum; Brassica napus; Brassica rapa subsp. oleifera; Saskatchewan
DOI:
10.4141/cjps92-126

14. The relative persistence of trifluralin (545 EC and 5 G) and ethalfluralin in prairie soils

Author:
Gerwing, P.D.; McKercher, R.B.
Source:
Canadian journal of soil science 1992 v.72 no.3 pp. 255-262
ISSN:
0008-4271
Subject:
Brassica napus; Triticum aestivum; Avena sativa; Setaria italica; crop damage; herbicide residues; ethalfluralin; trifluralin; emulsifiable concentrates; granules; prairie soils; soil organic matter; geographical distribution; stubble; fallow; plant density; biomass production; Saskatchewan
DOI:
10.4141/cjss92-024

15. Growth and ochratoxin production of Aspergillus alutaceus on seed of wheat and rapeseed cultivars

Author:
Madhyastha, M.S.; Marquardt, R.R.; Frohlich, A.A.
Source:
Canadian journal of plant science 1993 v.73 no.1 pp. 163-166
ISSN:
0008-4220
Subject:
cultivars; seeds; ochratoxins; varietal resistance; Triticum aestivum; Triticum turgidum subsp. durum; Brassica napus; toxicity; Aspergillus; Brassica rapa subsp. oleifera; Manitoba
DOI:
10.4141/cjps93-021

16. Response fo wheat, triticale, barley, and canola to lime on four soil types in north-eastern Victoria

Author:
Slattery, W.J.; Coventry, D.R.
Source:
Animal production science 1993 v.33 no.5 pp. 609-618
ISSN:
0816-1089
Subject:
Brassica napus; Hordeum vulgare; triticale; Triticum aestivum; lime requirement; soil pH; soil types; sulfur fertilizers; crop yield; Victoria (Australia)
DOI:
10.1071/EA9930609

17. The effect of time of application and placement of sulphur fertilizer sources on yield of wheat, canola, and barley

Author:
Nuttall, W.F.; Boswell, C.C.; Sinclair, A.G.; Moulin, A.P.; Townley-Smith, L.J.; Galloway, G.L.
Source:
Communications in soil science and plant analysis 1993 v.24 no.17/18 pp. 2193-2202
ISSN:
0010-3624
Subject:
Triticum aestivum; Hordeum vulgare; Brassica napus; sulfur fertilizers; crop yield; application timing; fertilizer requirements; Saskatchewan; New Zealand
DOI:
10.1080/00103629309368948

18. Carbon isotope discrimination and water-use efficiency for six crops grown under wet and dryland conditions

Author:
Knight, J.D.; Livingston, N.J.; Van Kessel, C.
Source:
Plant, cell and environment 1994 v.17 no.2 pp. 173-179
ISSN:
0140-7791
Subject:
water use efficiency; Sinapis alba; irrigated conditions; dry environmental conditions; carbon; photosynthesis; Triticum turgidum subsp. durum; Triticum aestivum; Brassica napus; dryland farming; Pisum sativum; Brassica rapa subsp. oleifera; stable isotopes
DOI:
10.1111/j.1365-3040.1994.tb00280.x

19. Effect of sulfur additions on the yield and elemental composition of canola and spring wheat

Author:
Warman, P.R.; Sampson, H.G.
Source:
Journal of plant nutrition 1994 v.17 no.11 pp. 1817-1825
ISSN:
0190-4167
Subject:
Triticum aestivum; Brassica napus; potassium; sulfates; gypsum; nutrient availability; soil fertility; nutrient uptake; mineral content; dry matter accumulation; sandy loam soils; loam soils
Abstract:
... Growth chamber experiments of canola (Brassica napus L.) and spring wheat (Triticum aestivum L.) were conducted using three soils testing low in extractable sulfate (9-12 mg/kg). Experiments were designed to determine how the three soils compared in plant available sulfur (S) and to test the effects of various rates of potassium sulfate (K2SO4) and gypsum on the elemental composition and dry matte ...
DOI:
10.1080/01904169409364849

20. Phosphorus Release Kinetics and Extractable Phosphorus after Long-term Fertilization

Author:
D. Steffens
Source:
Soil Science Society of America journal 1994 v.58 no.6 pp. 1702-1708
ISSN:
0361-5995
Subject:
partially acidulated rock phosphate; slags; nutrient availability; Lolium perenne; nutrient uptake; Secale cereale; Triticum aestivum; Brassica napus; extraction; kinetics; phosphorus; Alfisols
Abstract:
... If different P fertilizers have been applied for a long time, it is difficult to measure the P availability. The objectives of this study were to investigate (i) the kinetics of soil P release by electroultrafiltration (EUF), (ii) extractable P using different soil extractants, (iii) plant P uptake, and (iv) the importance of considering both the P release kinetics and extractable P for plant P up ...
DOI:
10.2136/sssaj1994.03615995005800060018x

21. Prairie crop yield estimates from modelled phenological development and water use

Author:
Raddatz, R.L.; Shaykewich, C.F.; Bullock, P.R.
Source:
Canadian journal of plant science 1994 v.74 no.3 pp. 429-436
ISSN:
0008-4220
Subject:
mathematical models; Hordeum vulgare; equations; water use efficiency; phenology; crop yield; Triticum aestivum; Brassica napus; Alberta; Manitoba; Saskatchewan
DOI:
10.4141/cjps94-080

22. Zero-tillage establishment of alfalfa and meadow bromegrass as influenced by previous annual grain crop

Author:
Allen, C.L.; Entz, M.H.
Source:
Canadian journal of plant science 1994 v.74 no.3 pp. 521-529
ISSN:
0008-4220
Subject:
crop production; plant development; forage crops; no-tillage; Medicago sativa; plant establishment; dry matter accumulation; Triticum aestivum; straw; Brassica napus; Pisum sativum; Bromus biebersteinii; crop rotation; Manitoba
DOI:
10.4141/cjps94-094

23. Zero-tillage influence on canola, field pea and wheat in a dry subhumid region: agronomic and physiological responses

Author:
Borstlap, S.; Entz, M.H.
Source:
Canadian journal of plant science 1994 v.74 no.3 pp. 411-420
ISSN:
0008-4220
Subject:
humid zones; crop quality; evapotranspiration; no-tillage; conventional tillage; dry environmental conditions; water use efficiency; crop yield; seasonal variation; Triticum aestivum; Brassica napus; Pisum sativum; Manitoba
DOI:
10.4141/cjps94-078

24. Carbon-13 isotope discrimination at several growth stages in lentil, spring wheat and canola

Author:
Matus, A.; Slinkard, A.E.; Kessel, C. van.
Source:
Canadian journal of plant science 1995 v.75 no.3 pp. 577-581
ISSN:
0008-4220
Subject:
isotope labeling; experimental design; transpiration; carbon; Triticum aestivum; genotype; Brassica napus; selection criteria; Lens culinaris; stable isotopes; vegetative growth
DOI:
10.4141/cjps95-100

25. Chemical and biochemical changes in the rhizospheres of wheat and canola

Author:
McKenzie, R.H.; Dormaar, J.F.; Schaalje, G.B.; Stewart, J.W.B.
Source:
Canadian journal of soil science 1995 v.75 no.4 pp. 439-447
ISSN:
0008-4271
Subject:
rhizosphere; acid phosphatase; crop rotation; nutrient availability; nutrient uptake; wheat soils; soil enzymes; oxidoreductases; cropping sequence; Triticum aestivum; biological activity in soil; Brassica napus; soil pH; continuous cropping; phosphorus; microbial activity; enzyme activity; alkaline phosphatase
DOI:
10.4141/cjss95-064

26. Cold hardening of spring and winter wheat and rape results in differential effects on growth, carbon metabolism, and carbohydrate content

Author:
Hurry, V.M.; Strand, A.; Tobiaeson, M.; Gardestrom, P.; Oquist, G.
Source:
Plant physiology 1995 v.109 no.2 pp. 697-706
ISSN:
0032-0889
Subject:
freezing; cultivars; seedling growth; interspecific variation; biosynthesis; plant nutrition; seedlings; fluorescence; carbohydrates; net assimilation rate; gas exchange; biochemical pathways; carbon; Triticum aestivum; Brassica napus; enzyme activity; chlorophyll; cold tolerance; metabolites
Abstract:
... The effect of long-term (months) exposure to low temperature (5 degrees C) on growth,photosynthesis, and carbon metabolism was studied in spring and winter cultivars of wheat (Triticum aestivum) and rape (Brassica napus). Cold-grown winter rape and winter wheat maintained higher net assimilation rates and higher in situ CO2 exchange rates than the respective cold-grown spring cultivars. In particu ...

27. Comparisons of diverse plant species reveal that only grasses show drastically reduced levels of ubiquitin monomer in mature pollen

Author:
Kulikauskas, R.; Hou, A.; Muschietti, J.; McCormick, S.
Source:
Sexual plant reproduction 1995 v.8 no.6 pp. 326-332
ISSN:
0934-0882
Subject:
Tripsacum dactyloides; Zea mays; Triticum aestivum; Sorghum bicolor; Pennisetum glaucum; Oxalis; Pseudosasa; Rhododendron arboreum; Campsis radicans; Calla; Prunus cerasus; Pinus; Helianthus annuus; Tulipa; Solanum lycopersicum var. lycopersicum; embryo (plant); Brassica napus; pollen; ubiquinones; quantitative analysis; chemical constituents of plants
Abstract:
... Ubiquitin is a ubiquitous protein involved in targeting proteins for degradation. Maize pollen was previously reported (Callis and Bedinger 1994) to show extremely low levels of ubiquitin monomer, and developmental significance was attributed to this surprising feature of maize pollen. However, we had previously shown (Muschietti et al. 1994) that tomato pollen had high levels of ubiquitin monomer ...
Handle:
10113/14629
DOI:
10.1007/BF00243199

28. EPIC model parameters for cereal, oilseed, and forage crops in the northern Great Plains region

Author:
Kiniry, J.R.; Major, D.J.; Izaurralde, R.C.; Williams, J.R.; Gassman, P.W.; Morrison, M.; Bergentine, R.; Zentner, R.P.
Source:
Canadian journal of plant science 1995 v.75 no.3 pp. 679-688
ISSN:
0008-4220
Subject:
Psathyrostachys juncea; Brassica napus; phosphorus; Brassica rapa subsp. oleifera; Agropyron cristatum; estimation; Hordeum vulgare; data collection; Triticum aestivum; Bromus biebersteinii; simulation models; Zea mays; Leymus angustus; leaf area; biomass production; temperature; Bromus inermis; nitrogen; soil types; Alberta; Saskatchewan; North Dakota; Manitoba; Montana
DOI:
10.4141/cjps95-114

29. Species, herbicide and tillage effects on surface crop residue cover during fallow

Author:
Blackshaw, R.E.; Lindwall, C.W.
Source:
Canadian journal of soil science 1995 v.75 no.4 pp. 559-565
ISSN:
0008-4271
Subject:
wind erosion; Brassica napus; Lens culinaris; 2,4-D; manual weed control; Hordeum vulgare; Triticum aestivum; glyphosate; degradation; Linum usitatissimum; crop residues; fallow; Secale cereale; erosion control; tillage; paraquat; chemical control; water erosion; cropping sequence; Alberta
DOI:
10.4141/cjss95-079

30. A yield-independent, 15N-isotope dilution method to estimate legume symbiotic dependence without a non-N2-fixing reference plant

Author:
Chalk, P.M.; Smith, C.J.; Hopmans, P.; Hamilton, S.D.
Source:
Biology and fertility of soils 1996 v.23 no.2 pp. 196-199
ISSN:
0178-2762
Subject:
Lupinus angustifolius; Triticum aestivum; Brassica napus; Lolium rigidum; symbiosis; nitrogen fixation; estimation; nitrogen; stable isotopes; nitrates; soil depth; soil test values; isotope dilution technique
Abstract:
... The proportional contribution of atmospheric N2 to the N nutrition of lupin (Patm) was estimated in a field experiment following addition of NH4Cl of KNO3 to unconfined microplots (1.5 m2) at 2.5 g N m-2 (10 atom% 15N). The integrated 15N enrichment, or 'mean pool abundance', of nitrate extracted from 0- to 15-cm samples taken under the lupin crop on eight occasions between 28 and 190 days after s ...
DOI:
10.1007/BF00336063

31. Influence of previous crop type on yield of spring wheat: analysis of commercial field data

Author:
Bourgeois, L.; Entz, M.H.
Source:
Canadian journal of plant science 1996 v.76 no.3 pp. 457-459
ISSN:
0008-4220
Subject:
quantitative analysis; Linum usitatissimum; crop yield; Triticum aestivum; Brassica napus; Pisum sativum; crop rotation; Manitoba
DOI:
10.4141/cjps96-080

32. Weed performance in crop rotations with and without leys and at different nitrogen levels

Author:
Andersson, T.N.; Milberg, P.
Source:
Annals of applied biology 1996 v.128 no.3 pp. 505-518
ISSN:
0003-4746
Subject:
weed control; calcium nitrate; Hordeum vulgare; cultural control; Fabaceae; Brassica rapa subsp. oleifera; fallow; light intensity; Triticum aestivum; weeds; Brassica napus; Avena sativa; multivariate analysis; biomass; crop rotation; application rate; nitrogen fertilizers; Sweden
DOI:
10.1111/j.1744-7348.1996.tb07110.x

33. Differential regulation by low temperature of the gene for a RNA-binding protein, rbpA3, in the cyanobacterium Anabaena variabilis strain M3

Author:
Sato, N.; Maruyama, K.
Source:
Plant & cell physiology 1997 v.38 no.1 pp. 81-86
ISSN:
0032-0781
Subject:
Synechocystis; Nicotiana sylvestris; phylogeny; genes; Brassica napus; restriction mapping; Daucus carota; binding proteins; gene expression; Anabaena variabilis; Triticum aestivum; Synechococcus; Arabidopsis thaliana; Zea mays; humans; transcription (genetics); temperature; Mesembryanthemum crystallinum; Spinacia oleracea; nucleotide sequences; Sorghum bicolor; RNA
Abstract:
... The RbpA3 protein of Anabaena variabilis contains one RNA-binding domain with a carboxy-terminal glycine-rich domain. Levels of two transcripts of the rbpA3 gene were differentially regulated by growth temperature. The RbpA3 protein is related to the RbpC protein within the group of cyanobacterial Rbps. ...
DOI:
10.1093/oxfordjournals.pcp.a029089

34. Diversity and longevity of the soybean debris mycobiota in a no-tillage system

Author:
Baird, R.E.; Mullinix, B.G.; Peery, A.B.; Lang, M.L.
Source:
Plant disease 1997 v.81 no.5 pp. 530-534
ISSN:
0191-2917
Subject:
Glycine max; crop residues; pods; stems; no-tillage; plant pathogenic fungi; longevity; species diversity; Medicago sativa; Brassica napus; Secale cereale; Triticum aestivum; cover crops; sampling; seasonal variation; Indiana
Abstract:
... The survival of the mycobiota on pod and stem debris of soybean produced in a no-tillage system with cover crops of alfalfa, canola, rye, or wheat or with no cover was studied during 1994 and 1995. Fiberglass mesh bags containing pods and stems were assayed every 28 to 31 days to determine the isolation frequency of fungi. Over 90% of the 11,906 isolates obtained were members of the Deuteromycotin ...
DOI:
10.1094/PDIS.1997.81.5.530

35. Importance of the chiral centers of jasmonic acid in the responses of plants. Activities and antagonism between natural and synthetic analogs

Author:
Holbrook, L.; Tung, P.; Ward, K.; Reid, D.M.; Abrams, S.; Lamb, N.; Quail, J.W.; Moloney, M.M.
Source:
Plant physiology 1997 v.114 no.2 pp. 419-428
ISSN:
0032-0889
Subject:
Helianthus annuus; Brassica napus; measurement; chemical degradation; dose response; jasmonic acid; gene expression; Triticum aestivum; Nicotiana tabacum; esters; stereochemistry; enzyme activity; chemical structure; seed germination; transgenic plants; cotyledons; proteinase inhibitors; reporter genes; chemical constituents of plants; chlorophyll; beta-glucuronidase
Abstract:
... The importance of the two chiral centers at C-3 and C-7 in the molecular structure of jasmonic acid in plant responses was investigated. We separated methyl jasmonate (MeJA) into (3R)- and (3S)-isomers with a fixed stereochemistry at C-3, but epimerization at C-7 is possible. The four isomers of the nonepimerizable analog 7-methyl MeJA were synthesized. These six esters and their corresponding aci ...

36. No-Till Corn Response to Crop Rotation and In-Row Residue Placement

Author:
Ken J. Janovicek; Tony J. Vyn; Robert P. Voroney
Source:
Agronomy journal 1997 v.89 no.4 pp. 588-596
ISSN:
0002-1962
Subject:
Zea mays; Glycine max; no-tillage; soil temperature; Hordeum vulgare; air temperature; heat sums; plant density; crop yield; Trifolium pratense; water content; Triticum aestivum; Brassica napus; rain; mass; crop rotation; stover; Ontario
Abstract:
... Enhanced corn (Zea mays L.) yield responses to rotation in notill systems may be due to the types and amounts of surface-placed plant residue. Research in 1989, 1990, and 1995 evaluated no-till corn yield response to various preceding crops and examined whether inrow residue removal affected no-till corn response to rotation crops. The soil was an imperfectly drained loam (medium, mixed, weakly to ...
DOI:
10.2134/agronj1997.00021962008900040009x

37. Phytotoxicity of canola residues: release of water-soluble phytotoxins

Author:
Wanniarachchi, S.D.; Voroney, R.P.
Source:
Canadian journal of soil science 1997 v.77 no.4 pp. 535-541
ISSN:
0008-4271
Subject:
Brassica napus; roots; stems; leaves; crop residues; degradation; phytotoxicity; phytotoxins; volatile fatty acids; phenolic compounds; Zea mays; Hordeum vulgare; seedling growth; Triticum aestivum; ambient temperature
DOI:
10.4141/S94-083

38. cDNA clones encoding 1,3-beta-glucanase and a fimbrin-like cytoskeletal protein are induced by Al toxicity in wheat roots

Author:
Cruz-Ortega, R.; Cushman, J.C.; Ownby, J.D.
Source:
Plant physiology 1997 v.114 no.4 pp. 1453-1460
ISSN:
0032-0889
Subject:
Triticum aestivum; Brassica napus; Arabidopsis thaliana; Hordeum vulgare; Nicotiana tabacum; Pisum sativum; roots; aluminum; phytotoxicity; protein synthesis; actin; molecular weight; isoelectric point; beta-glucanase; cytoskeleton; protein composition; genetic code; complementary DNA; genes; gene expression; clones; cultivars; genetic variation; amino acid sequences; messenger RNA; stress response
Abstract:
... A cDNA library made from mRNA of Al-treated roots of an Al-sensitive wheat (Triticum aestivum cv Victory) cultivar was screened with a degenerate oligonucleotide probe derived from the partial amino acid sequence of the Al-induced protein TAl-18. Of seven clones that initially hybridized with the probe, one encoded a novel 1,3-beta-glucanase having a calculated molecular weight of 46.3 and an isoe ...
PubMed:
9276954
PubMed Central:
PMC158438

39. Comparing the adaptation of sunola, canola and mustard to three soil climatic zones of the Canadian prairies

Author:
Miller, P.R.; Johnston, A.M.; Brandt, S.A.; McDonald, C.L.; Derksen, D.A.; Waddington, J.
Source:
Canadian journal of plant science 1998 v.78 no.4 pp. 565-570
ISSN:
0008-4220
Subject:
climatic zones; planting date; Helianthus annuus; no-tillage; water use efficiency; crop residues; fallow; Brassica juncea; oilseeds; agronomic traits; crop yield; Triticum aestivum; seed productivity; Brassica napus; Brassica rapa subsp. oleifera; heat sums; Saskatchewan
DOI:
10.4141/P97-153

40. Comparison of growth response and nitrogen uptake by canola and wheat following application of nitrogen fertilizer

Author:
Mason, M.G.; Brennan, R.F.
Source:
Journal of plant nutrition 1998 v.21 no.7 pp. 1483-1499
ISSN:
0190-4167
Subject:
Brassica napus; Triticum aestivum; crop yield; nitrogen; nutrient uptake; urea; protein content; seed oils; vigor; seed productivity; application rate; chemical constituents of plants; Western Australia
Abstract:
... The seed yield response of canola (Brassica napus L.) and wheat (Triticum aestivum L.) to application of nitrogen (N), applied as urea (46% N), was measured in two field experiments in south Western Australia. Wheat produced significantly more seed than canola at all levels of applied N fertilizer, including the no-N control. There was a small (<10%) wheat grain yield increase to applied N fertili ...
DOI:
10.1080/01904169809365497

41. Determination of a critical nitrogen dilution curve for winter oilseed rape

Author:
Colnenne, C.; Meynard, J.M.; Reau, R.; Justes, E.; Merrien, A.
Source:
Annals of botany 1998 v.81 no.2 pp. 311-317
ISSN:
0305-7364
Subject:
Brassica napus; nitrogen content; shoots; biomass; equations; mathematical models; calibration; Triticum aestivum; leaves; flowering; nutrient solutions; nitrogen fertilizers; nutrient requirements; nitrates; application rate; France
Abstract:
... Several controlled environmental and field experiments were carried out to define the critical nitrogen dilution curve for winter oilseed rape, cultivar Goeland. This curve is described by the following power equation: N = 4.48 W(-0.25), where N is the total nitrogen concentration in the shoot biomass and W the shoot biomass. This curve has been validated over the range of shoot dry matter of 0.88 ...
DOI:
10.1006/anbo.1997.0557

42. Effect of row spacing and seed/fertilizer placement on agronomic performance of wheat and canola in zero tillage systems

Author:
Xie, H.S.; Rourke, D.R.S.; Hargrave, A.P.
Source:
Canadian journal of plant science 1998 v.78 no.3 pp. 389-394
ISSN:
0008-4220
Subject:
Brassica napus; Triticum aestivum; row spacing; no-tillage; application methods; sowing; urea; crop management; intensive cropping; crop yield; seedling emergence; branches; pods; inflorescences; seed productivity; Manitoba
DOI:
10.4141/P97-063

43. Seed germination and seedling dry matter production of canola, barley and wheat as affected by seed-placed KCl and polymer-coated KCl

Author:
Zhang, M.; Nyborg, M.; Solberg, E.D.
Source:
Canadian journal of soil science 1998 v.78 no.4 pp. 611-614
ISSN:
0008-4271
Subject:
Hordeum vulgare; Brassica napus; Triticum aestivum; potassium; potassium chloride; seed germination; seedling growth; coatings; dry matter accumulation; biomass production; Alberta
DOI:
10.4141/S97-092

44. Uridine 5'-diphosphate-glucose dehydrogenase from soybean nodules

Author:
Stewart, D.C.; Copeland, L.
Source:
Plant physiology 1998 v.116 no.1 pp. 349-355
ISSN:
0032-0889
Subject:
Glycine max; Hordeum vulgare; symbiosis; glucose; developmental stages; root nodules; physicochemical properties; oxidoreductases; Bradyrhizobium japonicum; Triticum aestivum; Brassica napus; kinetics; enzyme activity; protein composition
Abstract:
... A highly purified preparation of uridine 5'-diphosphate (UDP)-glucose (Glc) dehydrogenase (DH; EC 1.1.1.22) has been characterized from soybean (Glycine max L.) nodules. The enzyme had native and subunit molecular masses of approximately 272 and 50 kD, respectively. UDP-Glc DH displayed typical hyperbolic substrate kinetics and had Km values for UDP-Glc and NAD+ of 0.05 and 0.12 mM, respectively. ...

45. Wheat response to alternative crops on a duplex soil

Author:
Asseng, S.; Fillery, I.R.P.; Gregory, P.J.
Source:
Animal production science 1998 v.38 no.5 pp. 481-488
ISSN:
0816-1089
Subject:
Vicia faba; soil water content; nitrogen; Vicia sativa; biomass production; Brassica juncea; leaf water potential; Triticum aestivum; soil fertility; Brassica napus; harvest index; length; Cicer arietinum; water uptake; Lupinus angustifolius; roots; break crops; Western Australia
DOI:
10.1071/EA97152

46. Comparing canola and wheat seedling use of different sources of phosphorus

Author:
Bolland, M.D.A.
Source:
Journal of plant nutrition 1999 v.22 no.7 pp. 1197-1210
ISSN:
0190-4167
Subject:
interspecific variation; application rate; seedlings; nutrient uptake; Triticum aestivum; Brassica napus; field experimentation; phosphorus; triple superphosphate; roots; rock phosphate; Western Australia
Abstract:
... A glasshouse study, using soil collected from two sites, was undertaken to compare how 30-day-old seedlings of canola (Brassica napus) and wheat (Triticum aestivum) utilized phosphorus (P) from freshly-applied (current) triple superphosphate (TSP), and TSP and rock phosphate [North Carolina and Queensland (Duchess) apatites] (RP) applied in field experiments 11 years previously (previous P). The P ...
DOI:
10.1080/01904169909365704

47. Comparing responses of grain legumes, wheat and canola to applications of superphosphate

Author:
Bolland, M.D.A.; Siddique, K.H.M.; Loss, S.P.; Baker, M.J.
Source:
Nutrient cycling in agroecosystems 1999 v.53 no.2 pp. 157-175
ISSN:
1385-1314
Subject:
Triticum aestivum; Vicia faba; Cicer arietinum; Brassica napus; Lens culinaris; Lupinus albus; Lupinus angustifolius; nutrient content; phosphorus; alkaline soils; field experimentation; nutrient requirements; residual effects; crop yield; Western Australia
Abstract:
... Phosphorus (P) is a major deficiency of soils of south-western Australia (WA). The fertilizer P requirements are not known for grain legumes being evaluated for neutral to alkaline, fine textured soils in WA. To rectify this, glasshouse and field experiments were undertaken to compare the responses of several grain legume species, wheat and canola to applications of single superphosphate and the r ...

48. Effect of degradation on the porosity and surface area of forage cell walls of differing lignin content

Author:
Gardner, P.T.; Wood, T.J.; Chesson, A.; Stuchbury, T.
Source:
Journal of the science of food and agriculture 1999 v.79 no.1 pp. 11-18
ISSN:
0022-5142
Subject:
Zea mays; Triticum aestivum; Brassica napus; Phleum pratense; Medicago sativa; internodes; leaves; cellulose; enzyme activity; cell walls; surface area; chemical composition; xylose; cellulases; porosity
Abstract:
... Cell walls, prepared from the stems of wheat, maize, lucerne and rape and from timothy grass, were degraded using a commercial cellulase enzyme preparation. Timothy and lucerne were extensively degraded (60-70% loss of dry matter) while dry matter losses from the more lignified maize, rape and wheat samples were substantially less (30-40%). Residues obtained after 6 and 72 h degradation and origin ...
DOI:
10.1002/(SICI)1097-0010(199901)79:1<11::AID-JSFA159>3.0.CO;2-6

49. Effects of distance from field edge on aphidophagous insects in a wheat crop and observations on trap design and placement

Author:
Bowie, M.H.; Gurr, G.M.; Hossain, Z.; Baggen, L.R.; Frampton, C.M.
Source:
International journal of pest management 1999 v.45 no.1 pp. 69-73
ISSN:
0967-0874
Subject:
Syrphidae; Aphidius; sticky traps; parasitoids; Rhopalosiphum padi; biological control agents; spatial distribution; edge effects; predators; Triticum aestivum; population density; Brassica napus; water traps; color; natural enemies; pollen; biological control; insect control; New South Wales
DOI:
10.1080/096708799228076

50. Evaluation of potential relay strip crops for predator enhancement in Texas cotton

Author:
Parajulee, M.N.; Slosser, J.E.
Source:
International journal of pest management 1999 v.45 no.4 pp. 275-286
ISSN:
0967-0874
Subject:
Helicoverpa zea; crop yield; Brassica napus; Aphis gossypii; Gossypium hirsutum; Triticum aestivum; population density; insect control; Heliothis virescens; relay cropping; Vicia villosa; insect pests; autumn; species diversity; biological control; predatory insects; spring; cover crops; Sorghum bicolor; strip cropping; Texas
DOI:
10.1080/096708799227680