Spelling suggestions: "subject:"plant growth"" "subject:"slant growth""
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The development and application of a field technique for exposing plant communities to elevated concentrations of carbon dioxideSpring, Gregory Mark January 1997 (has links)
No description available.
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Characterisation and partial purification of the enzyme responsible for ethylene synthesis from 1-aminocyclopropane-1carboxylic acid in plant tissuesVerveridis, Philippos January 1991 (has links)
No description available.
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Environmental effects on the physiology of sainfoin (Onobrychis viciifolia) with particular reference to nitrogenase activityMcNeill, A. M. January 1984 (has links)
No description available.
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An assessment of bacterial inoculants of winter wheat (Triticum aestivum L.) under temperate conditionsHarris, Joanna Mary January 1989 (has links)
No description available.
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The biochemical basis of abscisic acid deficient mutantsDuckham, Stephen Craig January 1992 (has links)
No description available.
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Subcellular mechanisms of action of abscistic acid and auxinsPatel, B. N. January 1984 (has links)
No description available.
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Functional analysis of GAI, an Arabidopsis gibberellin signalling proteinFleck, Barbara January 2002 (has links)
No description available.
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Purification of an enzyme involved in abscisic acid biosynthesisBass, Peter R. January 1993 (has links)
No description available.
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Studies in the use of plant growth regulators on phytoremediationFuentes, Hector D., University of Western Sydney, Hawkesbury, College of Science, Technology and Environment, School of Science, Food and Horticulture January 2001 (has links)
Phytoremediation is a relatively new technology that uses plants for the clean up of contaminated soils.Its low cost, simplicity and environmentally friendly approach make this technology a viable option for remediation but the main drawback is that it must be considered as long term alternative given its slow speed. This work is the first to report the use of Plant Growth Regulators(PGR)to enhance the performance of phytoremediation so that less time is needed for remediation.Soil samples were taken from a heavy metal contaminated, abandoned mine site for plant growth trials. A clean soil was also analysed and used for reference.Trials were carried out by growing corn in the contaminated soils and using various concentrations of IBA and NAA together with soil amedments to see if these could increase the accumulation of Zn, Mn, Cu, Bb and Fe in corn. Several further tests were conducted and results noted. / Doctor of Philosophy (PhD)
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Symbiotic N2 fixation in 30 field-grown cowpea (Vigna unguiculata L. Walp.) genotypes in the Upper West Region of Ghana measured using 15N natural abundanceBelane, AK, Dakora, FD 29 April 2009 (has links)
Abstract
In this study, 30 cowpea genotypes were assessed
for symbiotic N2 fixation in 2005, and 15 of them were reevaluated
in 2006 using the 15N natural abundance
technique. Shoot dry matter yield of cowpea genotypes
increased significantly in cvs. Vuli-1, Glenda, IT93K-2045-
29, IT90K-59, Omondaw, Apagbaala, and IT84S-2246
in 2005 producing about 3.0 to 3.6-fold more biomass
relative to cv. Vallenga. In 2006, seven out of the 15
cowpea genotypes tested (namely, IT97K-499-39,
TVu11424, Botswana White, IT84S-2246, Sanzie, Brown
Eye, and Glenda) also produced more dry matter than cv.
CH14. Shoot δ15N values ranged from −0.58‰ to 1.49‰
in 2005, and −1.51‰ to 1.40‰ in 2006, and these resulted
in %Ndfa values of 63.5–86.7% and 56.2–96.3%, respectively.
The amount of N-fixed was 49–178 kg N ha−1 in
2005 and 62–198 kg N ha−1 in 2006. Furthermore, there
was a direct relationship between the level of symbiotic N
nutrition and plant growth, and between grain yield and
amount of N-fixed in 2005 and 2006. As a result, genotypes
that fixed the most N also produced the largest biomass and
the greatest amount of grain yield. The observed relationship
between N2 fixation and biomass confirmed our view
that cowpea (and other grain legumes) can be concurrently
selected for higher N2 fixation, superior plant growth, and
greater grain yield. The high levels of N-fixed by many of
the cowpea genotypes in this study suggest that they can contribute large amounts of N to cropping systems in
African agriculture.
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