Method and device for evaluating quality of grain

Application Number: 00103714
Application Date: 2000.03.02
Publication Number: 1265469
Publication Date: 2000.09.06
Priority Information: 1999/3/2 JP 54270/99
International: G01N33/00;G01N21/59
Applicant(s) Name: Satake Engineering (Mfg.) Co., ltd.
Inventor(s) Name: Satatke Akira;Hosaka Sakio;Maruyama Hideharu
Patent Agency Code: 72001
Patent Agent: zhou beilin
Abstract A method and an apparatus are provided for estimating a quality of grains to be harvested from a grain plant in the future, during a growth period prior to the harvesting. The method comprises the step for establishing a quality conversion coefficient for estimating a specific quality of grains after the harvesting based on absorbencies relating to the specific quality of the grains obtained by irradiating light having predetermined wavelength regions on a leaf of a grain plant in growth at a predetermined time during the growth period of the grain plant and the specific quality obtained from the same grains after the harvesting, and the step for estimating the quality of the grains to be harvested in the future based on said quality conversion coefficient and absorbencies relating to said specific quality obtained from a leaf of the grain plant presently growing at the predetermined time. The measurement for estimating the quality of the grains can be carried out in an easy and simple manner during the growth of grain plants.