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Three studies on cold acclimation in woody plants.Alexander, Leslie Ann 01 January 1979 (has links) (PDF)
No description available.
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Hardiness studies of some French American hybrid grapesGhosheh, Najati Saleh. January 1956 (has links)
Call number: LD2668 .T4 1956 G46 / Master of Science
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A study of winter hardiness of barley plantsVazquez-Colon, Leila. January 1961 (has links)
Call number: LD2668 .T4 1961 V39
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The effect of frost on the germination of corn.Eaton, E. L. January 1925 (has links)
No description available.
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The effect of nitrogen :: potassium ratios on nutrient content and low temperature hardiness of perennial ryegrass.Brooks, Christopher Charles 01 January 1980 (has links) (PDF)
No description available.
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The physiology of cold resistance in plants.Levitt, Jacob. January 1933 (has links)
No description available.
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Cold Resistance in Spineless CactiUphof, J. C. Th., Thornber, J. J. 01 December 1916 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
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Biochemical and biophysical indicators of chilling tolerance in some species of Eucalyptus.Stewart, Gwethlyn Meriel. January 1993 (has links)
Although Eucalyptus species are indigenous to Australia, they have been successfully cultivated
in South Africa, where they are mainly used in the mining and paper industries. With the
explosion in these industries it has been necessary to increase Eucalyptus plantations, often into
areas which experience frost and chilling temperatures. To combat this, high yielding Eucalyptus
species able to cope with these conditions would be desirable. The ability to rank species
according to their chilling tolerance will enhance decisions as to the suitability of species for use
in the field. To this aim, two biochemical and two biophysical parameters were chosen to
investigate and characterise Eucalyptus nitens, E. smithii, E. macarthurii, E. grandis and E.
grandis x nitens (GNI026). Ranking of these species in terms of chilling tolerance did not appear
possible using the data from the biochemical parameters (proline concentration and glutathione
reductase activity), but the biophysical parameters (fluorescence characteristics and onset of
temperature of melt) gave results comparable to those obtained in field trials using these species.
Fluorescence characteristics were particularly useful in assessing the chilling tolerance of the
species in question. Fluorescence is the recommended technique for further studies as it is
relatively inexpensive, rapid, does not require destructive sampling and can be used in both the
laboratory and field. / Thesis (M.Sc.)-University of Natal, 1993.
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Genetic Analysis of Frost Tolerance in Rapeseed/Canola (Brassica Napus L.)Fiebelkorn Wrucke, Danielle January 2017 (has links)
Frost can be detrimental to canola (Brassica napus L.) production. Depending on the severity, the entire field can be killed. Having frost tolerance in canola would benefit growers by allowing them to plant early, utilize early season moisture, and avoid high heat during flowering. However, frost tolerance in canola has not been well studied. A protocol was developed that determined 14 day old seedlings should be acclimated at 4°C for 7 days before being exposed to overnight frost (-4°C) in a small freezing chamber. However, when a larger chamber was used for freezing, the protocol was optimized to -8°C instead. A greenhouse study was conducted on a diverse collection of 231 genotypes and genome-wide association scan (GWAS) was conducted to identify potential genes that were related to frost tolerance or abiotic stress tolerance. Thirty-eight significant single nucleotide polymorphism (SNP) markers were selected based on 10,000 bootstraps and 0.1 percent tail of the empirical distribution. The markers were located on chromosomes A01, A02, A03, A04, A07, A08, A09, A10, C03, C05, C06, C07, and C09. Stepwise regression highlighted a QTL located on chromosomes A02. Another GWAS was done on 147 canola germplasm lines phenotyped under natural conditions. Thirty-eight significant SNPs identified from this study were located on chromosomes A05, A07, A09, C01, C02, C03, C04, C05, C06, C07, and C09. Stepwise regression identified a QTL located on chromosome C04. A protocol was developed to measure the freezing induced electrolyte leakage from leaves of rapeseed/canola. A total of 157 germplasm lines were evaluated for freezing induced (-12°C for 2 h) electrolyte leakage. Thirty-six significant SNPs located on chromosomes A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, C01, C02, C04, C05, C06, C07, and C09 were identified. Stepwise regression identified 10 QTL located on chromosomes A01, A02, A04, A06, A07, C02, C05, C07, C09, and one that could not be assigned. All GWAS studies identified potential genes of interest that were related to frost tolerance, abiotic stress, and transcription factors. / Northern Canola Growers Association
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