Spectroscopy and Spectral Analysis, Volume. 41, Issue 10, 3214(2021)

Detection of Rice False Smut Grade Degree Based on the Rank Sum Test of Spectral Feature Points

Jia-mao SANG* and Feng-nong CHEN*;
Author Affiliations
  • School of Automation, Hangzhou Dianzi University, Hangzhou 310018, China
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    Figures & Tables(10)
    DJI Matrice 600 PRO
    Aerial photograph of Unmanned Aerial Vehicle (UAV) with hyperspectral device in test fieldNote: Figure 2 was collected on September 18, 2017; the rice is in the yellow ripening period; the climate is cloudy and there is no wind; the aerial photography route is from west to east.
    Spectra of rice without rice smut diseaseand rice with rice smut disease
    Technical route of rank sum test for rice smut disease
    Box drawing and notesNote: The horizontal lines from level 3 to level 5 from top to bottom represent the sample upper bound, upper 1/4 quintile, median line, lower 1/4 quintile, and sample lower bound.
    Diagram of the classification of Rice False Smut in experimental field
    • Table 1. Planting distribution of rice test field in 2019

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      Table 1. Planting distribution of rice test field in 2019

      种植日期
      第一期(06-15)ABCD
      第二期(06-20)ABCD
      第三期(06-25)ABCD
      第四期(06-30)ABCD
      第五期(07-5)ABCD
      第六期(07-10)ABCD
      第七期(07-15)ABCD
    • Table 2. Disease grade of Rice False Smutin different experimental areas

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      Table 2. Disease grade of Rice False Smutin different experimental areas

      水稻标号施辰子稻曲病发病等级划分法病情
      指数
      0级1级2级3级4级5级
      甬优十二 一期 A500000000
      甬优十二 一期 B500000000
      甬优十二 一期 C499100000.022
      甬优十二 一期 D498110000.089
      甬优十二 二期 A499001000.111
      甬优十二 二期 B498020000.133
      甬优十二 二期 C500000000
      甬优十二 二期 D499000000
      甬优十二 三期 A500000000
      甬优十二 三期 B498020000.133
      甬优十二 三期 C499010000.067
      甬优十二 三期 D498430000.286
      甬优十二 四期 A4691675211.889
      甬优十二 四期 B4821024201.111
      甬优十二 四期 C4741662201.289
      甬优十二 四期 D4691675211.889
      甬优十二 五期 A4811016201.267
      甬优十二 五期 B433322014134.330
      甬优十二 五期 C423241915865.971
      甬优十二 五期 D363592724131410.6
      甬优十二 六期 A5601998512.399
      甬优十二 六期 B51519169212.669
      甬优十二 六期 C51312108402.234
      甬优十二 六期 D19110210404.813
      甬优十二 七期 A431692324246.188
      甬优十二 七期 B373593340111211.43
      甬优十二 七期 C42945915213.770
      甬优十二 七期D129418134913.017
    • Table 3. Output of rank sum test

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      Table 3. Output of rank sum test

      方差
      来源
      平方和自由度均方差卡方
      统计量
      p
      组间1.259 48×10911.259 48×10937.787.908 71×10-10
      组内6.654 07×101119 9983.327 37×107--
      总计6.666 67×101119 999---
    • Table 4. Significance rank sum test results

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      Table 4. Significance rank sum test results

      参与检验的等级p
      1, 33.8×10-9
      1, 54.2×10-11
      1, 75.6×10-7
      3, 57.9×10-10
      3, 74.6×10-6
      5, 73.9×10-9
      1, 3, 55.2×10-8
      1, 3, 78.7×10-10
      1, 5, 76.9×10-7
      3, 5, 73.5×10-11
      1, 3, 5, 77.3×10-9
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    Jia-mao SANG, Feng-nong CHEN. Detection of Rice False Smut Grade Degree Based on the Rank Sum Test of Spectral Feature Points[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 3214

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    Paper Information

    Category: Research Articles

    Received: Sep. 10, 2020

    Accepted: --

    Published Online: Oct. 29, 2021

    The Author Email: Jia-mao SANG (925867825@qq.com)

    DOI:10.3964/j.issn.1000-0593(2021)10-3214-06

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