1, visual appearance method. Corn seed embryo shape and color were visually observed. Any kind of embryo protruding or shrunken, dark and dull, the seed is fresh, strong life, can be used for production purposes.
2, soaking germination method. First 100 seeds were soaked in water for about two hours, swelled, placed on wet grass paper, covered with wet grass paper, placed in ample oxygen, and at room temperature of 10-20° C. to allow the seeds to fully germinate; Divide by 100 and multiply by 100% to determine the germination rate. Although this method is accurate, it takes 8 days.
3, red ink staining method. A commercially available red ink plus 19 copies of tap water was used as a dyeing agent; 100 corn seeds were randomly selected and soaked in water for two hours to allow them to swell; and the emulsified embryos and milk embryos were peeled off with tweezers; After treatment, the seeds were uniformly placed in the incubator, and the dye was injected to submerge the seeds. After dyeing for 15 to 20 minutes, the dye was poured out, and the seeds were washed repeatedly with tap water. Dead embryos and endosperm appear dark red, and live embryos are not stained or slightly light red. Judging the number of live seeds, this is divided by 100 and multiplied by 100% for the germination rate.
4, visual appearance method. Corn seed embryo shape and color were visually observed. Any kind of embryo protruding or shrunken, dark and dull, the seed is fresh, strong life, can be used for production purposes.
5, soaking germination method. First 100 seeds were soaked in water for about two hours, swelled, placed on wet grass paper, covered with wet grass paper, placed in ample oxygen, and at room temperature of 10-20° C. to allow the seeds to fully germinate; Divide by 100 and multiply by 100% to determine the germination rate. Although this method is accurate, it takes 8 days.
1% salidroside in rhodiola rose extract is a kind of rhodiola rose extract, is the Key Product of our company, with the stem and leaves of rhodiola rhodiola as raw materials, after extraction, concentration, drying into brown powder.
Rhodiola rhodiola extract is a natural extract extracted from Rhodiola grandiflora, which is refined, concentrated and dried.It is easily soluble in water, soluble in methanol, soluble in ethanol, insoluble in ether.It's stable against heat.
Rhodiola, the name of traditional Chinese medicine.They are the dry roots and rhizomes of Rhodiola roseum, .Mainly produced in the Chinese mainland Jilin, Hebei, Shanxi, Xinjiang and other places."Traditional Chinese Medicine Dictionary" records: Rhodiola "cold, sweet and astringent taste.Promote blood and stop bleeding, clear lung and stop cough.Treatment of cough, hemoptysis, pneumonia cough.
Rhodiola rhodiola is commonly found wild on sunny slopes, stone crevices, alpine meadows, alpine rock crevices, hillside grasslands, shrub margins, and dry sandy soils in mountains.Its adaptability is strong, like slightly cold and humid climate conditions, cold and drought tolerance, soil requirements are not very strict, should choose high altitude, cold climate, short frost-free period, summer day and night big temperature difference in the mountain cultivation.
Loam or sandy loam with rich humus, deep soil layer, sufficient sunshine and good drainage should be selected for cultivation, and forest cut or raw wasteland can be used for cultivation in mountainous areas.
Rhodiola Rosea,Rhodiola Rosea Powder,Rhodiola Rosea Extract Benefits,Rhodiola Rosea Extract Holland
Shaanxi Kepler Biotech Co.,Ltd , https://www.keplerherb.com