muthukuribk
Established Member
COLOUR MEASUREMENT
Colour measurements were performed on the longitudinal-radial and longitudinal-tangential faces of the clear wood samples at 12 % moisture content. The measurements were recorded using a portable spectrocolorimeter Microflash Datacolor at ambient temperature and humidity. A sensor head diameter of 6 mm, illuminant D65 (representing average daylight), and 10° standard observer were the conditions used to measure the wood colour (Hunter and Harold 1987). On each of the 100 mm long test samples 8 measurement points were recorded whilst 4 measurement points were recorded on the 50 mm long test samples. The CIELAB colour parameters L*, a* and b* which respectively denote lightness/darkness, redness/greenness and yellowness/blueness were obtained directly from the measurements. The colour measurements in each test sample were made avoiding knots and other defects and averaged to one recording.
SOIL CHEMICAL ANALYSIS
Total nitrogen was determined by the Kjeldhal method while organic matter and organic carbon were determined according to Walkey and Black (1934). Concentrations of exchangeable cations were determined by atomic absorption spectroscopy and soil pH was determined with a pH meter using both water and calcium chloride solutions.
We are one and only tissue culture teak producers in India and abroad.
For tissue culture teak plants
Please contact
BALAKRISHNA MUTHUKURI
MOTHER AGRI BIOTECH LABORATORIES INDIA PVT. LTD.
BANGALORE.
+919035003471
+91 9908286565
Colour measurements were performed on the longitudinal-radial and longitudinal-tangential faces of the clear wood samples at 12 % moisture content. The measurements were recorded using a portable spectrocolorimeter Microflash Datacolor at ambient temperature and humidity. A sensor head diameter of 6 mm, illuminant D65 (representing average daylight), and 10° standard observer were the conditions used to measure the wood colour (Hunter and Harold 1987). On each of the 100 mm long test samples 8 measurement points were recorded whilst 4 measurement points were recorded on the 50 mm long test samples. The CIELAB colour parameters L*, a* and b* which respectively denote lightness/darkness, redness/greenness and yellowness/blueness were obtained directly from the measurements. The colour measurements in each test sample were made avoiding knots and other defects and averaged to one recording.
SOIL CHEMICAL ANALYSIS
Total nitrogen was determined by the Kjeldhal method while organic matter and organic carbon were determined according to Walkey and Black (1934). Concentrations of exchangeable cations were determined by atomic absorption spectroscopy and soil pH was determined with a pH meter using both water and calcium chloride solutions.
We are one and only tissue culture teak producers in India and abroad.
For tissue culture teak plants
Please contact
BALAKRISHNA MUTHUKURI
MOTHER AGRI BIOTECH LABORATORIES INDIA PVT. LTD.
BANGALORE.
+919035003471
+91 9908286565
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