A computer system obtains, using a camera, a first plurality of images of a canopy an agricultural plot. For each respective fruit of a plurality of fruit growing in the agricultural plot, the computer system identifies a first respective image in the first plurality of images that comprises the respective fruit. The first respective image has a corresponding first camera location. The computer system also identifies a second respective image in the first plurality of images that comprises the respective fruit. The second respective image has a corresponding second camera location. The computer system uses at least i) the first and second respective images and ii) a distance between the first and second camera locations to determine a corresponding size of the respective fruit.

A computer system obtains, using a camera, a first plurality of images of a canopy an agricultural plot. For each respective fruit of a plurality of fruit growing in the agricultural plot, the computer system identifies a first respective image in the first plurality of images that comprises the respective fruit. The first respective image has a corresponding first camera location. The computer system also identifies a second respective image in the first plurality of images that comprises the respective fruit. The second respective image has a corresponding second camera location. The computer system uses at least i) the first and second respective images and ii) a distance between the first and second camera locations to determine a corresponding size of the respective fruit.

The present invention is a plant growth promoter containing a lignocellulosic biomass, wherein the lignocellulosic biomass has a lignin content of 40% by mass or more and 60% by mass or less and a contact angle with water of 50° or less.

The invention provides a callus induction medium for blueberry tissue culture, it takes WPM medium as basic medium, comprises: 0.5-5.0 mg/L CPPU and 0.1-0.4 mg/L 2-ip. The present invention also provides a callus culture method of blueberry, the step thereof comprises: inoculating the blueberry explant into the above callus induction medium to conduct induction culture, to form blueberry callus. The present invention also discloses the medium combination and culture method to culture the above blueberry callus to blueberry tissue culture plant. For the above medium and culture method, the differentiation effect is good, efficiency is high, and can conduct continuous differentiation, and the effect to multiple varieties are all better.

The invention provides a callus induction medium for blueberry tissue culture, it takes WPM medium as basic medium, comprises: 0.5-5.0 mg/L CPPU and 0.1-0.4 mg/L 2-ip. The present invention also provides a callus culture method of blueberry, the step thereof comprises: inoculating the blueberry explant into the above callus induction medium to conduct induction culture, to form blueberry callus. The present invention also discloses the medium combination and culture method to culture the above blueberry callus to blueberry tissue culture plant. For the above medium and culture method, the differentiation effect is good, efficiency is high, and can conduct continuous differentiation, and the effect to multiple varieties are all better.

A plant injection system includes an injection tool configured to penetrate a plant and distribute a liquid formulation to the plant. The injection tool includes a base having a plurality of inlet ports and a penetrating distribution body extending along a longitudinal body axis. The penetrating distribution body includes a penetrating element to penetrate the plant, and one or more distribution ports in communication with the inlet ports to distribute the liquid formulation to the plant. The injection tools is configured to precisely inject liquid formulation into the vascular system of the plant.

A plant injection system includes an injection tool configured to penetrate a plant and distribute a liquid formulation to the plant. The injection tool includes a base having a plurality of inlet ports and a penetrating distribution body extending along a longitudinal body axis. The penetrating distribution body includes a penetrating element to penetrate the plant, and one or more distribution ports in communication with the inlet ports to distribute the liquid formulation to the plant. The injection tools is configured to precisely inject liquid formulation into the vascular system of the plant.

The invention concerns a tray (20) for cultivating a crop or a precursor thereof, particularly a strawberry plant cultivation tray, wherein the tray (20) comprises an upper wall (32) with a number of holders (42) for holding therein the crop or precursor thereof, wherein the holders (42) are formed by a number of longitudinally extending rows of cup-shaped recesses in the upper wall (32), herein the upper wall (32) also comprises a groove-like recess (33) arranged between adjacent rows of cup-shaped recesses (40) and extending in longitudinal direction (PI).

The invention concerns a tray (20) for cultivating a crop or a precursor thereof, particularly a strawberry plant cultivation tray, wherein the tray (20) comprises an upper wall (32) with a number of holders (42) for holding therein the crop or precursor thereof, wherein the holders (42) are formed by a number of longitudinally extending rows of cup-shaped recesses in the upper wall (32), herein the upper wall (32) also comprises a groove-like recess (33) arranged between adjacent rows of cup-shaped recesses (40) and extending in longitudinal direction (PI).

The present disclosure relates to an LED lighting device for strawberry seedling raising.

The LED lighting device for strawberry seedling raising according to an exemplary embodiment of the present disclosure includes: a light emitting unit composed of a first light emitting part composed of a red region wavelength emission LED and a blue region wavelength emission LED and a second light emitting part composed of the red region wavelength emission LED and an infrared region wavelength emission LED; and a control part for controlling the light emitting unit to manage a strawberry seedling raising, and controlling each LED included in the first light emitting part or the second light emitting part to be turned on/off based on a preset seedling raising mode.