Identification of corn seed vigor has "three methods"

Appearance visual inspection visualizes corn embryo embryo shape and color. Any kind of embryo protruding or shrunken, dark and dull, the seed is fresh, strong life, can be used for production purposes.

Immersion seed germination method First 100 seeds were immersed in water for about two hours, swelled, placed on wet grass paper, covered with wet grass paper, placed in an oxygen rich room temperature 10 °C ~ 20 °C environment, so that the seeds fully germinated; re-emergence Divide the number of seeds by 100 and multiply by 100% to determine the germination rate. Although this method is accurate, it takes 8 days.

The red ink dyeing method uses a commercially available red ink plus 19 copies of tap water as a dyeing agent; 100 corn seeds are randomly selected and soaked in water for two hours to allow them to swell; and the emulsified embryos and embryos are filled with tweezers one by one. Peel out; place the treated seeds evenly in the incubator and inject the coloring agent to submerge the seeds for 15 to 20 minutes. Dilute the stain and rinse the seeds 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.

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Nursing pad is a disposable sanitary product made of PE film, non-woven fabric, fluff pulp, polymer and other materials.
Adult nursing pads are mainly used for people who have undergone surgery, those who are paralyzed, and those who cannot take care of themselves. The adult nursing pad is easy to replace, which can ensure that the mattress under the building will not be soiled.

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