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  • Coleoptera  (12)
  • Triticum aestivum  (8)
  • Springer  (20)
  • Annual Reviews
  • Springer Science + Business Media
  • 2000-2004
  • 1990-1994  (20)
  • 1980-1984
  • 1991  (20)
Collection
Keywords
Publisher
  • Springer  (20)
  • Annual Reviews
  • Springer Science + Business Media
Years
  • 2000-2004
  • 1990-1994  (20)
  • 1980-1984
Year
  • 1
    Electronic Resource
    Electronic Resource
    Phenolic acid content of soils from wheat-no till, wheat-conventional till, and fallow-conventional till soybean cropping systems (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 1045-1068 
    Details
    ISSN: 1573-1561
    Keywords: Wheat ; Triticum aestivum ; soybean ; Glycine max ; no till ; conventional till ; soil extracts ; allelopathy ; phenolic acids ; Folin & Ciocalteu's phenol reagent ; HPLC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Soil core (0–2.5 and/or 0–10 cm) samples were taken from wheat no till, wheat-conventional till, and fallow-conventional till soybean cropping systems from July to October of 1989 and extracted with water in an autoclave. The soil extracts were analyzed for seven common phenolic acids (p-coumaric, vanillic,p-hydroxybenzoic, syringic, caffeic, ferulic, and sinapic; in order of importance) by high-performance liquid chromatography. The highest concentration observed was 4 μg/g soil forp-coumaric acid. Folin & Ciocalteu's phenol reagent was used to determine total phenolic acid content. Total phenolic acid content of 0- to 2.5-cm core samples was approximately 34% higher than that of the 0- to 10-cm core samples. Phenolic acid content of 0- to 2.5-cm core samples from wheat-no till systems was significantly higher than those from all other cropping systems. Individual phenolic acids and total phenolic acid content of soils were highly correlated. The last two observations were confirmed by principal component analysis. The concentrations were confirmed by principal component analysis, tions of individual phenolic acids extracted from soil samples were related to soil pH, water content of soil samples, total soil carbon, and total soil nitrogen. Indirect evidence suggested that phenolic acids recovered by the water-autoclave procedure used came primarily from bound forms in the soil samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402933
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  • 2
    Electronic Resource
    Electronic Resource
    Response ofDendroctonus brevicomis andIps paraconfusus (Coleoptera: Scolytidae) to combinations of synthetic pheromone attractants and inhibitors verbenone and ipsdienol (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 2163-2176 
    Details
    ISSN: 1573-1561
    Keywords: Dendroctonus brevicomis ; Ips paraconfusus ; bark beetle ; verbenone ; ipsdienol ; pheromones ; inhibitors ; Coleoptera ; Scolytidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract DendroctonusBrevicomis andIps paraconfusus are sympatric bark beetle species colonizingPinus ponderosa in western North America. Interspecific and intraspecific competition for resources is, in part, mediated through semiochemicals. The response ofD. brevicomis to its attractant pheromone was significantly reduced by simultaneous release of either verbenone or racemic ipsdienol. Trap catch was significantly further reduced by including both inhibitors with the attractant pheromones. However, although the response ofIps paraconfusus was significantly inhibited with the addition of either verbenone or racemic ipsdienol, both compounds together did not result in a significant further reduction in trap catch. There was a trend for greater reduction in response ofD. brevicomis to attractant pheromones with increased release rates of either 69% (+)-/31% (−)-verbenone or 84% (−)-/16% (+)-verbenone. Response of associates to attractants and inhibitor combinations was also determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987999
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  • 3
    Electronic Resource
    Electronic Resource
    Variation in semiochemical-mediated prey-predator interaction:Ips pini (Scolytidae) andThanasimus dubius (Cleridae) (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 515-524 
    Details
    ISSN: 1573-1561
    Keywords: Ips pini ; Thanasimus dubius ; Coleoptera ; Scolytidae ; Cleridae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The bark beetleIps pini (Say) displays variation in its response to and production of enantiomeric blends of its pheromone ipsdienol. One of the principal predators ofIps pini isThanasimus dubius (F.), which uses ipsdienol as a kairomone for prey location. During 1988 and 1989, in Wisconsin and Michigan, the response of both species to a range of enantiomeric blends of ipsdienol was investigated. Blends tested had the following ratios of the (S)-(+) to (R)-(−) enantiomers: 3%∶97%, 25%∶75%, 50%∶50%, 75%∶25%, and 97%∶3%. Either75% (+) ∶ 25% (−) or 50% (+)∶ 50% (−) ipsdienol captured the mostIps pini in both years at both sites. The 25% (+)∶75% (−) blend also caught moreIps pini than the control during both years at both sites. All blends tested were attractive toThanasimus dubius in both years at both locations. Blend preferences of both species were variable and labile at both sites. Response patterns of both species in Wisconsin were different from those in Michigan each year. Furthermore, response patterns of both species to the ipsdienol blends changed from 1988 to 1989 at both locations. A genetic component to this variation would permit predator-prey coevolution, as well as the development of resistance byIps pini to management strategies based on mass-trapping with single blends.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00982122
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  • 4
    Electronic Resource
    Electronic Resource
    1-Octen-3-ol, attractive semiochemical for foreign grain beetle,Ahasverus advena (Waltl) (Coleoptera: Cucujidae) (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 567-580 
    Details
    ISSN: 1573-1561
    Keywords: Ahasverus advena (Waltl) ; foreign grain beetle ; Coleoptera ; Cucujidae ; 1-octen-3-ol ; volatile attractant ; aggregation pheromone ; population density
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Volatiles were captured on Porapak Q from foreign grain beetles,Ahasverus advena (Waltl), feeding on rolled oats at various population densities. At low population density, males, females, and mixed-sex beetles four to six weeks posteclosion and older produced 1-octen-3-ol. Mixed-sex beetles emitted almost pure (R)-(−) enantiomer. Weekly production rates of 1-octen-3-ol by males were at least four times greater than those of females. Production of 1-octen-3-ol was barely detectable in volatiles from mixed-sex adults maintained at the highest population density. Laboratory bioassays in a two-choice, pitfall olfactometer modified to retain responding beetles revealed that 1-octen-3-ol serves as an aggregation pheromone forA. advena. Both racemic and chiral 1-octen-3-ols were good attractants for mixed-sex adults in the pitfall olfactometer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00982127
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  • 5
    Electronic Resource
    Electronic Resource
    Allelochemicals produced during glucosinolate degradation in soil (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 2021-2034 
    Details
    ISSN: 1573-1561
    Keywords: Rapeseed ; Brassica spp. ; isothiocyanate ; thiocyanate ; defatted ; seed meal ; allelochemicals ; Limonius infuscatus ; wireworms ; Coleoptera ; Elateridae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A variety of plant pests are suppressed by the incorporation of cruciferous plant material into soil. Although this effect is attributed to decomposition of glucosinolates into toxic products, little is known concerning glucosinolate degradation in the soil environment. Arenas (30 × 18 × 8 cm) that contained soil amended with 30 g defatted winter rapeseed meal (Brassica napus L.)/kg soil on one half and unamended soil on the other were constructed. Isothiocyanate concentrations in the soil were measured using infrared analysis of CC14 extracts, and ionic thiocyanate (SCN−) using ion chromatography on aqueous extracts. Quantities were monitored during a 100-hr time period in conjunction with a wireworm bioassay. Isothiocyanate production reached a maximum of 301 nmol/g soil at 2 hr, but decreased by 90% within 24 hr. Production of SCN− reached a maximum of 180 nmol/g soil at 8 hr but persisted longer than isothiocyanate. Separate late instar wire-worms (Limonius infuscatus Mots.) were repelled by the presence of rapeseed meal in less than 24 hr even though the meal was shown in separate experiments not to be toxic. We propose that rapidly produced isothiocyanates are responsible for this repellency, but other products such as SCN− may play a role.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00992585
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  • 6
    Electronic Resource
    Electronic Resource
    Determination of the transmission frequency of chromosome 4S l of Aegilops sharonensis in a range of wheat genetic backgrounds (1991)
    Springer
    Theoretical and applied genetics 81 (1991), S. 519-523 
    Details
    ISSN: 1432-2242
    Keywords: Preferential transmission ; Triticum aestivum ; Aegilops sharonensis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The transmission of chromosome 4S l from Aegilops sharonensis was observed in a range of wheat genetic backgrounds. Chromosome 4S l was transmitted at a very high frequency (at least 97.8%) in all crosses. The genetic background appears to only have a small effect on transmission. The frequency of transmission of chromosome 4S l was the same in each genetic background through both the male and female gametes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00219443
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  • 7
    Electronic Resource
    Electronic Resource
    Induction of a mutation in the male fertility gene of the preferentially transmitted Aegilops sharonensis chromosome 4S1 and its application for hybrid wheat production (1991)
    Springer
    Euphytica 54 (1991), S. 33-39 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; Aegilops sharonensis ; male sterility ; preferential transmission ; hybrid wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Wheat plants nullisomic for chromosome 4B are male sterile due to the absence of the male fertility gene Ms1. However, plants in which chromosome 4B has been substituted by the preferentially transmitted chromosome 4S1 of Ae. sharonensis are male fertile due to the compensating effect of Ms4 on the alien chromosome. This substitution line has been mutated and three recessive mutation of Ms4 have been selected. Plants homozygous for these mutations are male sterile. The implication of these mutations for hybrid wheat production is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00145628
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  • 8
    Electronic Resource
    Electronic Resource
    Greenhouse evaluation of red winter wheats for resistance to the Russian wheat aphid (Diuraphis noxia, Mordvilko) (1991)
    Springer
    Euphytica 57 (1991), S. 221-225 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; Diuraphis noxia ; Russian wheat aphid ; host plant resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The Russian wheat aphid (Diuraphis noxia, Mordvilko) (RWA) is responsible for significant economic damage to cereal crops in arid and semi-arid environments. In this research 20 red winter wheats originating from Iran were evaluated for resistance to RWA. Leaf rolling, leaf folding, and leaf chlorosis were measured using 0 to 3 scales. An overall mean damage score was calculated as the average of the three measured damage symptoms. Plants from seven central Asian accessions (PI222666, PI222668, PI225226, PI225267, PI225271, PI243630, and PI243642) had mean damage scores significantly lower (p 〈 0.001) than ‘Stephens’ wheat (RWA susceptible) and not significantly different from ‘Border’ oat (RWA resistant). These results are consistent with previous studies which found a high frequency of resistant wheats collected from the central Asian region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039668
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  • 9
    Electronic Resource
    Electronic Resource
    Breeding for hard red winter wheat cultivars adapted to conventional-till and no-till systems in northern latitudes (1991)
    Springer
    Euphytica 58 (1991), S. 57-63 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; cold hardiness ; cultivar x tillage interaction ; tillage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Conservation tillage in the Great Plains of North America has increased in recent years, in part, to control soil erosion, increase soil water storage and reduce production costs. No-till production is recommended for winter wheat (Triticum aestivum L.) in northern latitudes for the purpose of trapping snow and protecting the crop from freezing temperatures. A 5 year field study was conducted at four North Dakota locations from 1984–85 through 1988–89 to determine if significant cultivar x tillage interactions existed for grain yield of winter wheat. Fourteen hard red winter wheat cultivars were planted in both conventional-till and no-till systems. Significant cultivar x tillage interactions were obtained for grain yield from both a weighted analysis across all environments and from individual analyses of 12 of the 16 environments in which wheat survived under both tillage systems (P〈0.05). Regression of cultivar yield on mean environment yield produced b values that varied little between conventional till and no-till for 10 of the 14 cultivars. The top five yielding cultivars were the same for both tillage systems and had b values 〉 1.0. Although the cultivar x tillage interaction may be a result of differential winter survival rather than tillage per se, this study suggests that selection for winter wheats with superior yield performance can be conducted under either no-till or conventional-till systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00035340
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  • 10
    Electronic Resource
    Electronic Resource
    Distribution of magnesium in wheat (Triticum aestivum L.) in relation to supply (1991)
    Springer
    Plant and soil 136 (1991), S. 183-193 
    Details
    ISSN: 1573-5036
    Keywords: diagnosis ; distribution ; magnesium deficiency ; Triticum aestivum ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The aims of this study were to describe the distribution of magnesium (Mg) and its retranslocation within wheat, in order to develop diagnostic procedures for Mg deficiency. Plants were grown in solution culture with both constant supply (0, 5, 10, 20, 40, 80, 160 μMMg) and discontinued supply (40 μM and 160 μM decreased to nil). Magnesium was depleted from old leaves when Mg supply to the roots was halted. However, initial deficiency symptoms occurred on young leaves under constant but inadequate supply, contrasting with previous reports. Magnesium concentrations were also lower in young leaves compared to old leaves. Symptoms of yellowing and necrosis occurred if the leaf tissue contained 〈1194 μgg−1, irrespective of leaf age. The minimum Mg concentration in whole shoots associated with maximum shoot weight was 932 μgg−1; for the youngest emerged blade (YEB) it was 861 μgg−1. Symptoms were apparent on the young leaf before a reduction in shoot weight was measurable. The concentration of Mg in the YEB and whole shoot were better related to solution Mg concentration than was the Mg concentration in the old leaf.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02150049
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