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# Table 1 List and description of the 19 descriptors obtained by automated image analysis and used for statistical analysis

From: Histological quantification of maize stem sections from FASGA-stained images

Feature name | Description | Type |
---|---|---|

Stem area |
The area occupied by the stem section, in cm^{2}
| Morphometry |

Bundle number | The number of vascular bundles in the pith | |

Bundle intensity |
The numerical intensity of bundles, in cm^{−2}
| |

Lignified fraction | The tissue fraction corresponding to lignified pith | |

Non lignified fraction | The tissue fraction corresponding to non-lignified pith | |

Rind fraction | The tissue fraction corresponding to the rind | |

Bundle fraction | The tissue fraction corresponding to vascular bundles in pith | |

Lignified mean red | The mean red intensity in the lignified fraction | Colorimetry |

Lignified mean green | The mean green intensity in the lignified fraction | |

Lignified mean blue | The mean blue intensity in the lignified fraction | |

Non-lignified mean red | The mean red intensity in the non-lignified fraction | |

Non-lignified mean green | The mean green intensity in the non-lignified fraction | |

Non-lignified mean blue | The mean blue intensity in the non-lignified fraction | |

Rind mean red | The mean red intensity in the rind | |

Rind mean green | The mean green intensity in the rind | |

Rind mean blue | The mean blue intensity in the rind | |

Bundles mean red | The mean red intensity in the vascular bundles | |

Bundles mean green | The mean green intensity in the vascular bundles | |

Bundles mean blue | The mean blue intensity in the vascular bundles |