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Local Citrus Genetic Resources and Their Polymethoxyflavones Content in Northern Part of Okinawa Island
exploration mandarin preservation Shiikuwasha Tachibana
2010/11/24
The Okinawa Islands have many wild and locally cultivated citrus genetic resources belonging to the mandarin group. However, these have decreased in recent years. It is essential, therefore, to explor...
Effects of Harvest Time on Shoot Biomass and Yield of Turmeric (Curcuma longa L.) in Okinawa,Japan
Dry matter accumulation pattern Dry matter translocation Harvest time Rhizomatous plant Root crop Yield-shoot ratio
2010/3/4
This study was conducted in 2003−2004, 2005−2006 and 2006−2007 in Okinawa, Japan (24−28ºN and 126−130ºE) to evaluate the effects of harvest time on biomass accu...
Optimal Planting Depth for Turmeric (Curcuma longa L.) Cultivation in Dark Red Soil in Okinawa Island,Southern Japan
Emergence Planting depth Rhizome Turmeric yield Weed control
2009/7/29
Effects of planting depth on emergence, growth, development and yield of turmeric (Curcuma longa L.) in dark red soil (Shimajiri Mahji) were evaluated in Okinawa, Japan. Turmeric planted at the depths...
Growth,Yield and Quality of Turmeric (Curcuma longa L.) Cultivated on Dark-red Soil,Gray Soil and Red Soil in Okinawa,Japan
Curcumin content Fat content Mineral content Protein Turmeric color
2009/7/24
We evaluated growth, yield and quality of turmeric (Curcuma longa L.) cultivated in pots with dark-red soil (pH 5.2), gray soil (pH 7.4) and red soil (pH 4.4) in Okinawa, Japan. The soils were collec...
Effects of Farmyard Manure on Growth and Yield of Turmeric (Curcuma longa L.) Cultivated in Dark-Red Soil,Red Soil and Gray Soil in Okinawa,Japan
Medicinal plant Organic fertilizer Soil fertility Turmeric yield
2009/7/23
Effects of Farmyard Manure on Growth and Yield of Turmeric (Curcuma longa L.) Cultivated in Dark-Red Soil,Red Soil and Gray Soil in Okinawa,Japan.
Temporal and Vertical Variations in Photosynthetic Drivers in Mangrove Canopies,Okinawa,Japan
Air temperature Carbon dioxide Mangrove forest Tidal inundation Vertical and diurnal variations Water vapor
2009/7/21
The mangrove is characterized by the subdaily fluctuations of tidal inundation and, importantly, has many sources of CO2 such as autotrophic and heterotrophic respiration and marine organisms. For the...
Effects of Relative Light Intensity on the Growth,Yield and Curcumin Content of Turmeric (Curcuma longa L.) in Okinawa,Japan
Curcumin Irradiance effect Medicinal plant Root crop Turmeric yield
2009/7/20
The effects of relative light intensity (RLI) on the growth, yield and curcumin content of turmeric (Curcuma longa L.) were examined in Okinawa, Japan. The plants were shaded with white nets with diff...
Performance of Grass Strips for Sediment Control in Okinawa
centipede grass Kunigami-Maji soil reddish fine sediment
2009/6/10
Reddish fine sediment runoff from upland fields has been one of the causes of coastal environmental pollution in Okinawa, Japan. Planting grass strips is a well-known measure to reduce runoff of nonpo...