True or false and new or old paddy rice seed identifying method
A technology for rice seeds and authenticity identification, applied in the field of rice seeds, can solve the problems of unfavorable rare seed identification, poor measurement accuracy, long measurement time and the like, and achieve the effects of short identification time, high accuracy and easy operation.
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Embodiment 1
[0028] Identification of authenticity of No. 1 and No. 2 rice seeds
[0029] Firstly, select dry rice seeds with the same size and intact seed coat to be detected, and store them at a relative humidity of 50% before measurement. When measuring, the rice seeds are shelled and ground into powder, put into a 2 ml quartz cuvette, placed in a dark box, and then add 1 ml of MCLA solution, so that the seed powder is completely submerged in water, and then use The self-made single photon counter measures its chemiluminescence intensity for 20 minutes, the measurement temperature is 30 (± 2) ℃, and the relative humidity is 50 (± 5)%; figure 1 The shown chemiluminescence intensity change curve 1 (corresponding to No. 1 seed) and curve 2 (corresponding to No. 2 seed).
[0030] Will figure 1 Compared with the known curves, it was identified that curve 1 represents Fengsiachan seeds, and curve 2 represents Fengxiuzhan seeds.
Embodiment 2
[0032] Identification of No. 3, No. 4, and No. 5 Fengsi accounted for the storage time of rice seeds (that is, the degree of newness and oldness)
[0033] Firstly, select dry rice seeds with the same size and intact seed coat to be detected, and store them at a relative humidity of 45% before measurement. When measuring, the rice seeds are shelled and ground into powder, put into a 2 ml quartz cuvette, placed in a dark box, and then add 1 ml of MCLA solution, so that the seed powder is completely submerged in water, and then use The self-made single photon counter measures its chemiluminescence for 20 minutes, the measurement temperature is 25 (± 2) ℃, and the relative humidity is 45 (± 5)%; figure 2 The shown chemiluminescence intensity change curve 3 (corresponding to No. 3 seed), curve 4 (corresponding to No. 4 seed), and curve 5 (corresponding to No. 5 seed).
[0034] Get the average value of the chemiluminescence intensity 5 minutes after the start of measurement, then ...
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