Variation in seed traits and oil content in 24 Jatropha curcas L. seed sources from Asia, Africa and Papua New Guinea
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Principal component analysis revealed that seed and kernel weight and oil content in whole seed and in kernel were useful characteristics in explaining the variation pattern among seed sources.Abstract:
Abstract This study was carried out to determine the extent of variation in seed traits and oil content among 24 seeds sources of Jatropha curcas from 8 countries in Asia, Africa and Papua New Guinea. There were marked differences in the length (range 15.88-19 mm), breadth (10.20-11.71 mm), thickness (7.95-9.37 mm) and volume index of seed (1337-2000 mm3), weight of seed (42.67-80.20 g) and kernel (18.44-51.04 g), kernel/seed ratio (0.43-0.66), and oil content in seed (18.08-37.89%) and kernel (34.02-59.09%). In general, seeds from Laos, Mali, Papua New Guinea, Philippines and Thailand were larger and heavier than sources from China and India, but contained lower oil content in seed and kernel. Principal component analysis revealed that seed and kernel weight and oil content in whole seed and in kernel were useful characteristics in explaining the variation pattern among seed sources. Seven out of the 24 seed sources investigated in this study are considered promising for planting for oil-seed production. This study underpins the importance of selecting suitable seed sources for commercial plantation establishment of J. curcas.read more
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References
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Jatropha bio-diesel production and use
TL;DR: In this paper, the authors present an overview of the currently available information on the different process steps of the production process of bio-diesel from JCL, being cultivation and production of seeds, extraction of the oil, conversion to and the use of the biodiesel and the by-products.
Journal ArticleDOI
Comparative ecology of seed size and dispersal
TL;DR: It remains unclear whether competition among seedlings is a decisive influence on species composition in most of the world's vegetation types, as there is startlingly wide variation in seed mass among species growing interspersed with each other.
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Biology and genetic improvement of Jatropha curcas L.: A review
TL;DR: This review attempts to discuss the currently available information on Jatropha species identity, taxonomy and description, distribution and ecological requirements of the species, possibilities of exploitation of genetic potentiality, exploitation of existing diversity for yield and oil content by direct selection, hybridization and creation of diversity by mutation, and biotechnological interventions.
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Genetic variability and divergence studies in seed traits and oil content of Jatropha (Jatropha curcas L.) accessions
TL;DR: It is suggested that the crossing between accessions of cluster IV and VI will result in wide spectrum of variability in subsequent generations of Jatropha curcas.
Journal ArticleDOI
Inter and intra-population variability of Jatropha curcas (L.) characterized by RAPD and ISSR markers and development of population-specific SCAR markers
S. D. Basha,M. Sujatha +1 more
TL;DR: The study indicates an immediate need for widening the genetic base of J. curcas germplasm through introduction of accessions with broader geographical background through identification of population-specific markers in genotyping.