Fig. 1. Relationship between probability density histogram and normal distribution.
Fig. 2. The process and findings of standardization of normal distribution.
Fig. 3. Outputting number of accessions in random data range by standardization of normal distribution.
Fig. 4. Correlation plots between NIRS data and amylose (A) and protein content (B) in the milled brown rice germplasm.
Fig. 5. Normal distribution and probability density of amylose content in landrace (A1, A2), rice variety (B1, B2), weed type (C1, C2) and breeding line (D1, D2) germplasm.
Fig. 6. Normal distribution and probability density of protein content in landrace (A), rice variety (B), weed type (C) and breeding line (D) germplasm.
Fig. 7. Number of accessions obtained from the probability density using the process of standard normal distribution of waxy type amylose content in landrace (n=688).
Fig. 8. Number of accessions obtained from the probability density using the process of standard normal distribution of common rice amylose content in landrace (n=4,260).
Fig. 9. Number of accessions obtained from the probability density using the process of standard normal distribution of protein content in landrace (n=4,948).
Fig. 10. Number of accessions obtained from the probability density using the process of standard normal distribution of waxy type amylose content in rice variety (n=617).
Fig. 11. Number of accessions obtained from the probability density using the process of standard normal distribution of common rice amylose content in rice variety (n=5,540).
Fig. 12. Number of accessions obtained from the probability density using the process of standard normal distribution of protein content in rice variety (n=6,157).
Fig. 13. Number of accessions obtained from the probability density using the process of standard normal distribution of waxy type amylose content in weed type (n=418).
Fig. 14. Number of accessions obtained from the probability density using the process of standard normal distribution of common rice amylose content in weed type (n=5,788).
Fig. 15. Number of accessions obtained from the probability density using the process of standard normal distribution of protein content in weed type (n=6,206).
Fig. 16. Number of accessions obtained from the probability density using the process of standard normal distribution of waxy type amylose content in breeding line (n=596).
Fig. 17. Number of accessions obtained from the probability density using the process of standard normal distribution of common rice amylose content in breeding line (n=9,402).
Fig. 18. Number of accessions obtained from the probability density using the process of standard normal distribution of protein content in breeding line (n=9,998).
Table 1. Origin distribution of rice germplasm used in the analysis of NIRS
Table 2. External validation results of NIRS equation model for the amylose and protein content in the milled brown rice
Table 3. Classification of rice germplasm according to amylose content by NIRS
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