Seed quality and longevity during storage of four jatropha curcas L.accessions found in Sarawak
Seeds of Jatropha curcas L. collected from four accessions from Bintulu, Miri, Samarahan and Sri Aman were studied to determine moisture content, germination, viability and other related properties (seedling morphogenesis and seed oil content). Outcomes of this research were crucial for developin...
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| Format: | Thesis |
| Language: | English English |
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University Malaysia Sarawak, UNIMAS
2013
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| Online Access: | http://ir.unimas.my/9398/ http://ir.unimas.my/9398/1/Seed%20Quality%20and%20Longevity%20During%20Storage%20of%20Four%20Jatropha%20Curcas%20L.%20Accessions%20Found%20In%20Sarawak.pdf http://ir.unimas.my/9398/2/SEED%20QUALITY%20AND%20LONGEVITY%20DURING%20STORAGE%20OF%20FOUR%20JATROPHA%20CURCAS%20L.%20ACCESSIONS%20FOUND%20IN%20SARAWAK%20%2824%20pages%29.pdf |
| Summary: | Seeds of Jatropha curcas L. collected from four accessions from Bintulu, Miri, Samarahan
and Sri Aman were studied to determine moisture content, germination, viability and other
related properties (seedling morphogenesis and seed oil content). Outcomes of this
research were crucial for developing and innovating the suitability of seed storage
methodology in retaining quality for future precedent. This study emphasized the effects of
desiccation and storage of seed from three different level of fruit maturity. In addition, an
environmental influence on the mother tree was also studied to determine the relatedness
yield of seed oil content by ecological features and soil property. This study revealed that
the maturity indexes was significant (p = 0.009) to determine the quality of the fresh seed.
However, at post-storage the outcome was vice-versa (p = 0.055) due to seed aging. The
best criterion to determine seed quality at post-storage was by accession where it showed a
significant outcome of p < 0.001 compared to fresh seed (p = 0.051). Desiccation period of
96 hours reduced seed moisture content up to 70% for 60 days of storage was optimal in
minimizing the risk of deterioration caused by fungi and seed biochemical reaction, as well
as retained seed viability. Dry microclimate and ample content of phosphorus, magnesium,
sulfur, copper and zinc elements available in soil were believed as a factor for which
contributed to high oil yield in J. curcas seed. |
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