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The spatial integration of agricultural markets in Malawi : the case of maize and dry beansNyondo, Christone R. J. January 2014 (has links)
The main objective of this study is to investigate the nature of price relationships existing amongst geographically separated agricultural commodity markets in Malawi. Market liberalisation provides the overarching framework on which this investigation is based. The liberalisation of commodity markets is assumed to facilitate the integration of geographically separated markets, increase gains from trade and the general welfare of the cOuntry. The investigation is performed using modern cointegration techniques. The cOintegration techniques applied in this thesis are based on the concept of spatial price equilibrium (SPE) initially proposed by Samuelson in 1952 and threshold cointegration techniques. The two categories of cointegration techniques, linear and non-linear, have been ) applied to the analysis of dry beans and maize markets in Malawi. For linear cointegration techniques, the Johansens' (1988) model and the Engle-Granger (1987) model have been applied (see chapters 6 to 8); while for non-linear model techniques, two types of threshold cOintegration (TAR and M-TAR) models have been applied (see chapter 8). Both linear and non-linear models investigate different aspects of price behaviour in the dry beans and maize markets. The analysis uses monthly price averages for the January 2000 and January 2012 period. The dry beans and maize markets have been selected for analysis because of their distinct characteristics. The most prominent distinguishing characteristic between them is that dry beans markets are fully liberalised while maize markets are partially liberalised. The dry beans market fully satisfies the key assumptions of the market liberalisation concept. Therefore, the a priori expectation is that the dry beans market is perfectly integrated. The principal maize market is not expected to be perfectly integrated because it is not fully liberalised. These distinctions between the two markets provide some sort of a 'natural experiment' on which the assumption that market liberalisation facilitates market integration can be tested.
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Effects of root excision and root cooling on primary leaf expansion in Phaseolus vulgaris LMilligan, Stuart Patrick January 1986 (has links)
No description available.
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An application of a model of maize growth to maize production by smallholders in KenyaMaende, Cleophas Makokha January 1994 (has links)
No description available.
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Faba bean (Vicia faba L.) tannins in non-ruminant nutritionWareham, Christopher Neil January 1991 (has links)
No description available.
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Evaluation of bean cultivars under high temperature stressUpson, Steven Douglas January 2011 (has links)
Photocopy of typescript. / Digitized by Kansas Correctional Industries
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Genetics of stem, flower, and pod color in Phaseolus vulgaris L. and Phaseolus coccineus L.Okonkwo, Christian Amechi January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
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Interrelationships among fructose, glucose, and sucrose in cocoa beans as affected by varietal types, post-harvest handling and further processingJones, Mary Bronwyn. January 1981 (has links) (PDF)
Thesis (M.S.)--Pennsylvania State University, 1981. / Includes bibliographical references.
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Iron availability from corn tortillas and cooked beans (Phaseolus vulgaris) : a study on the effect of fiberGarcia-Lopez, Jesus Salvador 23 June 1981 (has links)
Absorption of iron from foods has been reported to be inhibited by
various factors including some diet components. Fiber from different
sources has been observed to bind ferrous iron. This may be the reason
for iron deficiencies observed in populations that consume diets high in
non-digestible materials.
The effect of different levels of fiber from corn tortillas and cooked
beans on iron availability in the rat was studied. Iron-depleted rats
were fed test diets containing different levels of iron and fiber and the
diets were tested for their hemoglobin repletion ability. Estimation of
the neutral detergent fiber (NDF) in corn tortillas and cooked beans and
the soluble and ionizable iron in the test foods and diets were also
determined.
Corn tortillas contained 6.53% NDF. Raw beans contained 5.80% NDF
and increase to 15.75% upon cooking. In cooked beans, 60.16% of the
total iron is in the insoluble form while only 20.3% of the total iron in
corn tortillas is insoluble.
The mean relative biological value (RBV) for the test diets was
55.0 ± 19.0% with values ranging,from 40.41 ± 12.50% to 64.34 ± 11.10%
compared to that of ferrous sulfate (100% available). Fiber or iron
level had no significant effect on iron availability, however, a ratio
of 1.78 of corn tortilla to cooked beans showed the highest degree of
iron availability.
Percent efficiency of the test diets to incorporate iron into
hemoglobin ranged from 11.70 ± 1.4% for a diet containing 25 ppm iron and
15% NDF to 25.61 ± 6.10% for 35 ppm iron, 10% NDF diet. The control
diet containing 30 ppm ferrous sulfate had a 43.0 ± 8.7% efficiency.
Percent efficiency seems to show less variability in the determination
of iron availability from foods than RBV.
A significant correlation (p < 0.01) between soluble iron at pH 1.35
in vitro and percent efficiency was observed. This method could be used
to predict iron availability for different foods. / Graduation date: 1982
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Price discovery in the wholesale markets for maize and beans in UgandaKuteesa, Annette 16 August 2006 (has links)
Market information services established in 1999 were aimed at the promotion of market
efficiency through provision of information across the nation. While the responsible
bodies have improved the knowledge of prices, information exchange and flow, as a
result of competition between markets, is not known and questions of market
effectiveness still stand.
This study examines market efficiency based upon response to price signals across
Ugandan markets. We focus on information exchange for maize and beans among 16
key markets. We study weekly price data from the first week of 2000 to the last week of
2003 from each of the sixteen markets. Each commodity is studied separately using
Vector Autoregessions (VARs) and Directed Acyclic Graphs (DAGs). The two
techniques are widely used to show market risk and causal relations in time series data.
While results are presented individually for each commodity, the markets are
comparable.
In determining market efficiency, we test for stationarity of the data, explore the
magnitude of forecast error decompositions over time across markets, and observe the
patterns of communication based on DAGs. We find that markets are more efficient in
exchanging information on maize than beans. Communication of data is mostly between
markets in eastern, western, and central parts of Uganda. Overall, markets are very slow
in reacting to information in the short run.Information from the Mbale and Iganga markets, which are located in areas of high
production, is very valuable in the maize trade. However, of the two markets, it is data
from the Mbale market, located near the border with Kenya, which is of paramount
importance. Specifically, price is discovered in Mbale in the maize trade. Our results
also show the Gulu market, which is situated in an insecure zone, to be very responsive
to price signals over the long run.
In the case of beans, it is the price signals from Tororo and Jinja that cause more
disruption in most of the markets. Price is discovered in these two markets. A majority
of the markets is more affected by data from Jinja than Tororo. This segmentation in
market price discovery suggests an existing market failure. Arua and Gulu are found to
be the least responding markets in regards to price signals for beans. We do not find
information from the Kampala market to be important in either the maize or beans trade.
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Southwestern Beans and TepariesFreeman, G. F. 30 August 1912 (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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