Use of reflectance measurements to estimate early cereal biomass production on sandplain soils

摘要: High early biomass production has been suggested as a useful selection criterion for improving cereal yields in mediterranean environments. Current methods measuring plots involves destructive sampling which is not suitable routine use by plant breeders where large numbers of samples are to be screened. The measurement spectral reflectance using ground-based remote sensing techniques the potential provide nondestructive estimate production. This field study investigated relationship between and barley wheat assessed feasibility cereal-breeding programs. Spectral measurements (0.40-2.5 ¦m wavelengths) were made before stem elongation grown separate experiments at Wongan Hills, Western Australia. Cereal was closely associated with visible (0.44-0.66 ¦m) mid infrared (1.50-1.80 2.00-2.40 regions, but near (0.71-1.10 ¦m). poor correlation region due low amounts present high reflectivity sandplain soils these wavelengths. close associations regions provides promise estimation biomass, further research required refine technique scale breeding