Productivity and Curcumin Content of <i>In vitro</i> Regenerated <i>Curcuma</i> Plants
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- PARK Byoung-Jae
- Faculty of Agriculture, Kagoshima University
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- KOUGE Takuma
- Faculty of Agriculture, Kagoshima University
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- HASHINOKI Takuma
- Osumi Regional Promotion Bureau
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- SAMEJIMA Hiroaki
- Kobe University Graduate School
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- ONJO Michio
- Faculty of Agriculture, Kagoshima University
Description
<p>This study compared the growth and curcumin contents of in vitro regenerated and conventionally propagated Curcuma longa, C. aromatic, and C. zedoaria plants. The in vitro regenerated plants (IRPs) of all three species had an acceptable survival rate in the field (≥93%), suggesting that it is feasible to transplant Curcuma IRPs. In C. longa, the shoot and total rhizome dry weights (DWs) of conventionally propagated plants (CPPs) were 137.3 and 225.2 g, respectively, which were similar to or lower than the corresponding values in IRPs that were transplanted in April and similar to the corresponding values in IRPs that were transplanted in May. In C. aromatic and C. zedoaria, there was no significant difference in shoot growth between IRPs that were transplanted in April and CPPs, but the total rhizome DWs tended to be higher in the latter. In all three species, the shoot growth and rhizome yield of the IRPs increased as the planting time was brought forward, and there was a significant positive correlation between the shoot and rhizome DWs in the IRPs across all transplanting times (r = 0.88, p < 0.01). The curcumin contents of the rhizomes of C. longa and C. aromatic decreased as the transplanting time was delayed, but there was no significant difference in the curcumin contents of the rhizomes of IRPs that were transplanted in April and May and CPPs. These findings suggest that acceptable rhizome and curcumin yields can be obtained by cultivating IRPs of Curcuma spp. However, it is also necessary to consider bringing the planting time forward to increase these yields.</p>
Journal
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- Tropical Agriculture and Development
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Tropical Agriculture and Development 62 (1), 35-42, 2018
Japanese Society for Tropical Agriculture
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Details 詳細情報について
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- CRID
- 1390001288033598848
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- NII Article ID
- 130007377609
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- ISSN
- 18828469
- 18828450
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- Text Lang
- en
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed