20 research outputs found
Genetic diversity of farmer-preferred cowpea (Vigna unguiculata L. Walp) landraces in Turkey and evaluation of their relationships based on agromorphological traits
Cowpea (Vigna unguiculata L. Walp) is one of the important vegetable, grain,
and fodder legume species grown in the tropics and subtropics. Cowpea is
grown on small farms, and locally adapted landraces or populations are
cultivated, and genetic improvements are limited by the lack of knowledge of
genetic diversity of the indigenous and cultivated germplasm.
Characterization and classification of diversity of the germplasm is
valuable for both plant breeders and germplasm curators in the development
of conservation strategies and identification of plant genetic resources. In
the present study, 36 qualitative and quantitative agromorphological traits
were used to characterize and assess the genetic diversity of 32 farmer
preferred cowpea genotypes collected from diverse cultivated locations.
Genetic variation was highly significant, and phenotypic diversity was
observed for agromorphological traits. Agromorphological traits were
classified by principal components analysis (PCA) into 10 components, which
explained 81.18% of the total variation. PCA revealed that seed properties
such as weight, diameter, width, length, eye color and immature pod
pigmentation, leaf and pod color properties were the primary characteristics
to discriminate cowpea genotypes. The hierarchical analysis grouped the
genotypes into five clusters, and significant association was not apparent
between geographic origin and agromorphological traits. The promising
germplasm was identified to improve the landraces for fresh pod, grain, and
fodder
Efficiency analysis of dairy buffalo enterprises in Catalca district of Istanbul
The purpose of this study is to determine the efficiencies and economic situations of dairy buffalo enterprises in Catalca district of Istanbul. Research material was collected by means of a questionnaire from 32 enterprises, determined by purposive sampling method in 2013 production periods. According to calculations made per buffalo milked in enterprises, the shares of expenses for feed, labour, veterinary-health, electricity-water, maintenance and repairment, depreciation, general administration and other things in total expenses consist of 54.23%, 25.87%, 1.77%, 2.62%, 1.98%), 10.15%, 2.56% and 0.83% respectively. The average benefit/cost ratio for enterprises was found to be 1.27, whereas the unit cost of milk was 3.31 TL. The measurement of the efficiencies was realized by data envelopment analysis. In this analysis, input and output oriented CCR model with 3 outputs and 5 inputs was adopted. Milk-revenue, calf-revenue and increase in inventory were included in the analysis as outputs and feeding expense, whereas labor-force, veterinary and health expense, depriciation and electricity-water expenses as inputs. At the end, potential improvements that could be advised for inefficient enterprises were determined. The rations of efficient and inefficient enterprises were found 53% and 47% respectively. The factors that affected efficiency score were modeled by regression analysis. Increase in inventory, labor cost were determined to be two influential factors on efficiency (p < 0.05)
Legislative Documents
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