9 Scientific, photographic, cinematographic, optical, weighing, measuring and checking apparatus and instruments for the sorting, selecting and packaging of fruit and vegetables; measuring equipment, particularly for measuring the weight, quality, brix value, namely, sugar content, core rot, internal brownness, latent rot, length, curvature, size, colour and firmness, as well as other internal and external characteristics of fruit, vegetables, potatoes and bulbous crops; measurement and checking apparatus, fitted with devices for emitting visible light, infrared light, near-infrared light and/or ultraviolet light by means of LEDs or halogen light sources, cameras and/or sensors for capturing said light, and/or electronic scales, for measuring and/or checking the weight, quality, brix value, namely, sugar content, core rot, internal brownness, length, curvature, size, colour and firmness as well as other internal and external characteristics of fruit, vegetables, potatoes and bulbous crops; electronic weighing apparatus for fruit, vegetables, potatoes and bulbous crops; computers, including computers for fruit, vegetable and potato graders and graders for bulbous crops as well as complementary equipment; grading computers for fruit, vegetables, potatoes and bulbous crops