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  • 1
    Monograph available for loan
    Monograph available for loan
    Cenozoic foraminiferal interval zones and sequence tops in 66 exploration wells, Beaufort - Mackenzie Basin (1989)
    Ottawa : Geological Survey of Canada
    Associated volumes
    Details Availability
    Call number: M 04.0465
    In: Open file report / Geological Survey of Canada
    Type of Medium: Monograph available for loan
    Pages: 37 S.
    Series Statement: Open file report / Geological Survey of Canada 2121
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    Comparison of crossability, RAPD, SDS-PAGE and morphological markers for revealing genetic relationships within and among Lens species (1996)
    Springer
    Theoretical and applied genetics 93 (1996), S. 788-793 
    Details
    ISSN: 1432-2242
    Keywords: RAPD ; SDS-PAGE ; Morphological markers ; Crossability ; Genetic relationships ; Genus Lens
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The phylogenetic relationships among (sub)-species in the genus Lens have been reviewed based on recent published reports. There was both a substantial level of agreement and disagreement between reports based on different analytical procedures and different plant germ plasms. Lens culinaris ssp. orientalis appeared as the wild progenitor of the cultivated lentils. A gene flow from L. odemensis and L. ervoides during lentil crop evolution was suggested. Morphological characters (quantitative and qualitative) showed a different taxonomic pattern in the genus Lens. The use of nuclear and biochemical markers (RFLPs, RAPDs, seed-protein electrophoresis) appeared to be the most consistent and reliable methods for determining genetic relationships. It is suggested that these techniques be used in combination for taxonomic analysis of the genus Lens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00224077
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  • 3
    Electronic Resource
    Electronic Resource
    Relationships of chestnut species and New Zealand chestnut selections using morpho-nut characters (1998)
    Springer
    Euphytica 99 (1998), S. 27-33 
    Details
    ISSN: 1573-5060
    Keywords: Castanea species ; NZ chestnut selections ; PCA ; cluster analysis ; relationships
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Forty-nine morpho-nut characters were measured over the period 1994–1996 to study the relationships of 23 accessions of chestnut representing five lines of known chestnut species and 18 lines of New Zealand (NZ) chestnut selections. The study was prompted by the lack of knowledge of the parentage of NZ chestnut selections. These are presumed to be hybrids resulting from uncontrolled open pollination of the introduced chestnut species in NZ, most especially, Castanea sativa (European species) and C. crenata (Japanese species). Data were analysed by Principal Component Analysis (PCA) and the Unweighted Pair Group Mean (UPGMA) method of cluster analysis. Thirty-one characters out of the 49 used in the study accounted for the major variations among accessions. Results from both methods agreed and showed the separation of the chestnut species and NZ selections along geographic lines. The South Island selections were found to be mostly C. sativa-like while the North Island selections were mostly C. crenata-like. The discrimination between groups and description of differences between groups were more strongly marked from the PCA than in the UPGMA cluster analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018356931080
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  • 4
    Electronic Resource
    Electronic Resource
    Morphological characterisation and agronomic evaluation of transgenic broccoli (Brassica oleracea L. var. italica) containing an antisense ACC oxidase gene (2000)
    Springer
    Euphytica 113 (2000), S. 9-18 
    Details
    ISSN: 1573-5060
    Keywords: 1-aminocyclopropane-1-carboxylic acid (ACC) ; ACC oxidase ; antisense gene ; Brassica oleracea ; ethylene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Morphological characterisation and agronomic evaluation was conducted on 12 transgenic broccolilines containing a tomato antisense1-aminocyclopropane-1-carboxylic acid (ACC) oxidase gene. Plants of three cultivars: Shogun (Sh), Green Beauty (Gy) and Dominator (D), were regenerated from hairy root cultures after co-cultivation with Agrobacterium rhizogenes strain A4T harbouring the binary vector pLN35. The T-DNA of pLN35 contains genes encoding a tomato antisense ACC oxidase gene (35S-ACC-5′7′) and a neomycin phosphotransferase II gene (NOS-NPTII-NOS) for kanamycin resistance. The transgenic plants were transferred to a greenhouse and fertile plants obtained. Integration of the foreign DNA into the broccoli genome was confirmed by the polymerase chain reaction and Southern analyses. Transgenic plants showed evidence of hairy root (HR)-induced morphological changes to varying degrees. Of the 12 characterised transgenic lines, three lines(Gy/7, D/1 and D/2) performed within the limits of acceptability for all head quality parameters analysed (size, density, colour, shape and leafiness). The ethylene production from stalks of four field-grown transgenic lines of Green Beauty broccoli showed significant reductions in activity relative to the control 98 h after harvest. The Dominator transgenic lines D/1 and D/2 showed significant improvements in head colour relative to the control from 48 h after harvest. These results are consistent with the ethylene production patterns determined previously for these lines. The head colour results are consistent with previous results suggesting that two enzyme systems may be involved in broccoli senescence, giving two bursts of ethylene production, with only the second burst inhibited by the antisense ACC oxidase gene used.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003979801348
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  • 5
    Electronic Resource
    Electronic Resource
    Phylogenetic relationships in Lens species and their interspecific hybrids as measured by morphological characters (1997)
    Springer
    Euphytica 94 (1997), S. 101-111 
    Details
    ISSN: 1573-5060
    Keywords: interspecific hybrids ; Lens ; multivariate analysis ; phylogenetic relationships
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Phylogenetic relationships of 15 genotypes of the genus Lens and 7 of their interspecific hybrids were determined by morphological (quantitative and qualitative) characters. The first multivariate analysis was conducted on quantitative characters and second analysis was conducted on qualitative characters. In the first analysis on the basis of two canonical variates, accessions of Lens nigricans, L. odemensis and L. culinaris ssp. orientalis grouped together, while L. ervoides and L. culinaris ssp. culinaris formed two different groups. The second analysis yielded different results based firstly on two canonical variates where L. nigricans and L. culinaris ssp. culinaris formed two separate groups but the other three (sub)species clustered together when the third canonical variate was included. L. odemensis separated from this larger group and formed a separate group. The phylogenetic relationships of parents and their hybrids have also been discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1002960130906
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  • 6
    Electronic Resource
    Electronic Resource
    Yield components, harvest index and plant type in relation to yield differences in field pea genotypes (1995)
    Springer
    Euphytica 86 (1995), S. 31-40 
    Details
    ISSN: 1573-5060
    Keywords: conventionally leafed ; field peas ; Pisum sativum ; harvest index ; semi-leafless ; stability analysis ; yield components
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effectiveness of yield components, harvest index and morphological characteristics as selection criteria among four field pea (Pisum sativum L.) genotypes was examined. Genotypes were grown at a wide range of plant populations (9 to 400 plants m-2) to maximise environmental diversity. Both biological and seed yields approximately doubled from 9 to 100 plants m-2. This response flattened from 100 to 400 plants m-2. Differences among the genotypes were found only at 225 and 400 plants m-2. Analysis of the yield components highlighted the plasticity and large genotype by environment interactions of field peas. The numbers of pods per plant and peas per pod were maximised when each genotype was grown as spaced plants, but the low plant numbers meant seed yields per unit area were at their lowest. Genotypic differences for plant harvest index (PHI) were also only found at 225 and 400 plants m-2. Broad sense heritability estimates indicated that direct selection for PHI was not feasible. The inference from the yield component and PHI results was that alternative selection criteria such as physiological or morphological characteristics may be necessary for improved yield potential. Classification of each genotype indicated that low seedling vigour may be a positive attribute for crop plants of semi-leafless and conventionally leafed field peas. Selection based on any single plant attribute is unlikely to lead to dramatic improvements in the yield potential of field peas. Selection should be based on plant characteristics rather than on differences in yield components.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00035936
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  • 7
    Electronic Resource
    Electronic Resource
    Comparative measurements of the energy fluxes over a pine forest (1975)
    Springer
    Boundary layer meteorology 9 (1975), S. 297-313 
    Details
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract During the summer of 1974, simultaneous heat flux measurements were made over a pine forest in three ways: (a) Using the Bowen ratio - Energy Budget technique, with the Bowen ratio estimated from temperature and humidity profiles measured with two pairs of wet-and dry-bulb thermometers at six levels. (b) Using the Bowen ratio - Energy Budget technique, with the Bowen ratio estimated from temperature and humidity measurements using pairs of wet-and dry-bulb thermometers mechanically interchanged every ten minutes. (c) Using the Eddy Correlation - Energy Budget technique, with a direct measurement of the sensible heat flux made by a simple eddy correlation apparatus. Methods (b) and (c) are shown to give similar results apart from a systematic difference of about 25% in the measured sensible heat flux. This corresponds to an underestimate of the sensible heat flux by the eddy correlation apparatus. Although sometimes consistent with the other two methods, on occasions method (a) gave results which were significantly different from both (b) and (c). When differences occurred, they tended to be systematic and persistent over individual days; but they could change magnitude and sign if the particular sensors used at each level in the profile were rearranged. The experimental program used to collect these and previous data involved the rearrangement of sensors on a regular (two day) time scale. It is shown that, when averaged over several such rearrangements, method (a) produces median values of surface resistance which are more in keeping with those produced by the other methods. This is taken to imply that data previously gathered in this way can be used to produce physically reasonable results providing they are averaged over several days. On the basis of the results presented, recommendations are made on future experimental work in forest micrometeorology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00230772
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  • 8
    Electronic Resource
    Electronic Resource
    The influence of present-day levels of ultraviolet-B radiation on seedlings of two Southern Hemisphere temperate tree species (1999)
    Springer
    Plant ecology 143 (1999), S. 39-50 
    Details
    ISSN: 1573-5052
    Keywords: Leaf optical properties ; Photoinhibition ; Solar ultraviolet ; UV absorbing compounds ; UV-B
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Seedlings of two Southern Hemisphere temperate trees species (mountain beech: Nothofagus solandri var. cliffortioides (Hook. f.) Poole and broadleaf: Griselinia littoralis Raoul) were grown in the field to determine the effects of present-day levels of ultraviolet-B radiation (UV-B) on growth, biomass, UV-B absorbing compounds, leaf optical properties and photoinhibition. Plants were covered with either UV-B transmitting or UV-B absorbing filters. After 125 days of typical summer weather, total biomass of both species was not affected by the UV-B treatments. Without UV-B, height increased (23%) and the number of leaves produced decreased (−21%) in beech, but broadleaf was unaffected. The effect of UV-B on beech height and leaf number was manifest during a second flush of leaves suggesting differences in response to UV-B of leaves initiated in different seasons and UV-B radiation regimes. Leaves of both species were essentially opaque to the transmission of UV-B. In the absence of UV-B the transmission of photosynthetically active radiation through leaves of both species increased, foliar nitrogen concentrations increased and levels of UV-B absorbing compounds decreased. In the youngest leaves of beech but not of broadleaf, removal of UV-B reduced midday photoinhibition, and did not alter the complete recovery of the fluorescence ratio FV/FM in the evening to predawn levels. As leaves of both species aged, midday photoinhibition decreased, with the result that UV-B had no effect on photoinhibition in mature leaves. Results of this experiment show that even under present-day UV-B levels, UV-B radiation modifies the physiology, optical properties and secondary compounds of leaves of both beech and broadleaf seedlings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009851900138
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  • 9
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    Morphological, Anatomical, and Physiological Changes of Orchardgrass Leaves Grown under Fluctuating Light Regimes (2007)
    Wiley
    Details
    Publication Date: 2007-11-01
    Print ISSN: 0002-1962
    Electronic ISSN: 1435-0645
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley
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  • 10
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    Water Management, Purification & Conservation in Arid Climates. Volume 3: Water Conservation (2000)
    Wiley
    Details
    Publication Date: 2000-09-01
    Print ISSN: 0047-2425
    Electronic ISSN: 1537-2537
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley
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