Wheat Grain Yield Estimation Based on Image Morphological Properties and Wheat Biomass

Table 1

A description of the feature variables.

Organ	Features	Description
Stem	Length	Distance from the bottom of the stem to the ear section
	Width	The width of the stem
	Surface area	Number of pixels occupying the image of the stem
	Perimeter	Number of pixels around the boundary of the image of the stem
Ear	Length	The length of the spike to the end of the ear
	Width	Width of the ear
	Surface area	Number of pixels occupying the image of the ear of wheat
	Perimeter	Number of pixels around the boundary of the image of the ear
Wet weight	Leaf	Weight of the fresh leaves
	Stem	Weight of the fresh stem
	Ear	Weight of the fresh ear
Dry weight	Leaf	Weight of the leaves after drying treatment
	Stem	Weight of the stem after drying treatment
	Ear	Weight of the ear after drying treatment