Chlorophyll is the basic material for photosynthesis of green plants. It is closely related to the photosynthetic rate. In photosynthesis, it participates in energy transfer in the form of electron transfer and resonance and converts light energy into chemical energy. Chlorophyll content is an important observational parameter in plant physiological and biochemical studies and ecological surveys. It can be used to express plant biomass, detect plant health and response plant adaptation to the environment. In order to accurately obtain chlorophyll content, the instrument method of chlorophyll meter is commonly used. measuring.
Three representative trees were selected from each tree species. Four fully-grown healthy leaves were picked in different directions of each tree. SPAD-502 chlorophyll meter was used to measure SPAD values. Six points were evenly selected on each leaf for observation. , Calculate the average. The leaves measured by the chlorophyll meter were quickly removed and placed in a portable ice box to test the chlorophyll content in the laboratory. The unit fresh weight and unit area chlorophyll content were calculated, including chlorophyll a, chlorophyll b, and total chlorophyll content. Repeat 3 times for each tree species.
The chlorophyll content range of the fresh green leaves of the main tree species in northwestern Liaoning ranged from 0.73 to 4.61 mg.g-1. The coefficient of variation was 43. 6%, of which the smallest of the pines, the largest in the country; the change in the chlorophyll content per unit area is 0. 21 to 0. 99 g・m-2, the coefficient of variation is 35. 2%, of which the smallest was A. sinica, and the most was Acacia; the SPAD value range was 29. 42 to 75. 51, the coefficient of variation is 23. 0%, the smallest weeping willow, the largest forsythia.
There was a significant positive correlation between paddle leaf values ​​and the chlorophyll a content per unit of fresh green tree species in northwestern Liaoning (R = 0.30, P = 0.04, and there was no significant correlation with the unit fresh weight chlorophyll b content and total chlorophyll content. The value of the padding was significantly positively correlated with the content of chlorophyll a, chlorophyll b and total chlorophyll per unit area.The above correlation analysis was first determined by the chlorophyll meter directly, and then linked to the computer for analysis by software.

Semi Precious Stone

HR STONE mined two kinds of semi precious stones: blue sodalite and tiger eye. Specially sodalite mineral quarry in Africa, The sodalite rock in Africa that also contains abundant blue sodalite and white nepheline. Both of these minerals have a hardness of approximately 6 on the Mohs hardness scale.The quarry start to yield two kinds of sodalite Blue blocks, big size blocks, small size blocks in 2018. Max size of big block can be about 250*180cm and weight about 15-20 ton per block. Small block has two sizes: 3-10cm 10-30cm . Annual yield of blocks is about 100containers.Blue sodalite has two kinds of color classifications, one is blue mainly, one is blue and white mixed.According to the color purity and texture, the blocks have different ranks for your reference.

We ship the blocks to China and produce them into finished products, such as translucent blue sodalite slabs, table and arts. Whether super blue color or blue and white mixed, you can find out the right color you favor from our blue sodalite blocks and finished product.

We normally produce translucent blue sodalite slab with small blocks, so the blue sodalite is laminated with natural or artificial stone, glass, or Acrylic.

If you prefer blue sodalite slab is translucent, you can chose slab laminated with glass. Translucent blue sodalite is full of bright and fantastic colors and atmosphere.

Blue sodalite blocks, small or big size; blue sapphier stone slab, blue sodalite table-,welcome to contact us for details.

sodalite vs lapis :Blue sodalite has a strong resemblance to Lapis. For metaphysical purposes, this stone is said to improve one's Logical thinking.

Sodalite was originally discovered in Greenland in the early 1800's, then about 100 years later it was next found in Ontario. A few other sources, mostly in Africa, exist today.

We also have other semi precious stones wholesale, such as Tiger eye rough-super yellow color and commercial rank for your choice. Tiger eye only has small blocks.

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