A water stress detection method for tomatoes in a seedling stage based on micro-CT and polarization-hyperspectral imaging multi-feature fusion, comprising: using micro-CT to scan microscopic morphological features such as water stress stomata, spongy body, palisade tissue, cilia, vascular bundle, root volume, main root, and root hair density of tomatoes; using a polarization-hyperspectral imaging system to obtain macroscopic morphological features such as crown width, plant height, and leaf inclination of water stress plants, as well as leaf vein distribution, average gray, and leaf margin shaded area under a water-sensitive wavelength of 1450 nm, and macroscopic morphological features such as polarization states, stock vectors, and Mueller matrix variables of 1450 nm feature images at 0°, 45°, 90°, 135°, and 180° feature polarization angles. By fusion of internal and external structures, above-ground, underground, and macroscopic and microscopic morphological features of water stress tomatoes, and mutual fusion of water stress feature wavelength images and polarization state features, advantages are complementary, comprehensive and precise extraction and precise quantitative analysis of water stress features of the tomatoes are implemented, and a basis for scientific management of water and fertilizer integration of facilities is provided.

A water stress detection method for tomatoes in a seedling stage based on micro-CT and polarization-hyperspectral imaging multi-feature fusion, comprising: using micro-CT to scan microscopic morphological features such as water stress stomata, spongy body, palisade tissue, cilia, vascular bundle, root volume, main root, and root hair density of tomatoes; using a polarization-hyperspectral imaging system to obtain macroscopic morphological features such as crown width, plant height, and leaf inclination of water stress plants, as well as leaf vein distribution, average gray, and leaf margin shaded area under a water-sensitive wavelength of 1450 nm, and macroscopic morphological features such as polarization states, stock vectors, and Mueller matrix variables of 1450 nm feature images at 0°, 45°, 90°, 135°, and 180° feature polarization angles. By fusion of internal and external structures, above-ground, underground, and macroscopic and microscopic morphological features of water stress tomatoes, and mutual fusion of water stress feature wavelength images and polarization state features, advantages are complementary, comprehensive and precise extraction and precise quantitative analysis of water stress features of the tomatoes are implemented, and a basis for scientific management of water and fertilizer integration of facilities is provided.

Provided herein are devices, systems, and methods for airborne rooting and/or callusing of cuttings. The device includes a container defining an interior that can be humidified to allow for development of calluses or roots.

The present disclosure provides a new method for enhancing plant productivity and/for reducing leaf necrosis of plant grown hydroponically by using glycine betaine.

The present disclosure provides a new method for enhancing plant productivity and/for reducing leaf necrosis of plant grown hydroponically by using glycine betaine.

The present invention relates to the technical field of soilless culture, and in particular to a device suitable for automatically harvesting soilless culture sprouts. The device includes a bottom supporting frame, a conveying mechanism and a cutting mechanism, where the conveying mechanism is arranged on the bottom supporting frame, the cutting mechanism is arranged on the conveying mechanism, the conveying mechanism moves horizontally, an included angle α is formed between the conveying mechanism and a horizontal plane, and the included angle α is larger than or equal to 30° and less than or equal to 90°. According to the present invention, a lifting mechanism lifts a longer side edge of one end of the conveying mechanism up, such that an included angle is formed between the conveying mechanism and the bottom supporting frame, and the sprouts cut by the cutting mechanism incline to fall down into a sprout collecting box. Thus, the sprouts are effectively prevented from directly falling onto a culture plate, thereby reducing later treatment procedures and increasing production efficiency.

A plant cultivation method includes providing a growth period and a rest period alternately. In the rest period, a dark period and a bright period is alternately provided. In the dark period, an intensity of light applied to a cultivation target plant is lower than a light intensity at a light compensation point. In the bright period, blue light whose wavelength is 400 nm to 500 nm is applied at an intensity that is lower than the light intensity at the light compensation point. A one-cycle time T of repetition of the dark period and the bright period is 2 μs to 500 μs. A duty ratio ΔT/T of a bright period time ΔT to the one-cycle time T is 20% or smaller. The blue light has a photosynthetic photon flux density of 0.001 μmol.Math.m.sup.−2.Math.s.sup.−1 to 4.0 μmol.Math.m.sup.−2.Math.s.sup.−1.

Provided are a cultivation assisting device and a cultivation assisting method which are capable of assisting cultivators in cultivating crops using nanobubble water effectively. In order to assist cultivation of crops using nanobubble water, first information relating to a nanobubble water use condition is acquired for each cultivator cultivating a crop and second information relating to the result of cultivation is acquired for each cultivator; from the first information and second information of each cultivator, the correlation between the use condition and the result is determined; a selection of a result is accepted; and a use condition based on the selected result is derived on the basis of the correlation.

A plant container according to the present invention comprises: a container having a cultivation space therein and having an open upper surface; a guide cover covering the open upper surface of the container and having a plurality of guide openings spaced apart from each other; a medium arranged inside the container and having a plurality of seating openings provided in a number corresponding to the plurality of guide openings; and an input cover covering the upper side of the guide cover and having at least one input opening corresponding to at least one of the plurality of guide openings, wherein the at least one input opening, the one of the plurality of guide openings, and one of the plurality of seating openings are arranged in the vertical direction with respect to one center line.

The application provides a method for improving nutrient supply of female floral branches of Populus deltoides artificial hybridization. According to the technical links of the hybridization operation, the method separately integrates and improves the cultivation of female floral branch nutrient-supply seedlings (i.e., grafting rootstocks of floral branches), the pre-management of female floral branch nutrient-supply seedlings, the hydroponic management of floral branches, the Marching between female floral branches and rootstocks, the management of female floral branch nutrient-supply seedlings and the hydroponic management of female floral branches, so the goal of improving the seed-setting rate and quality of poplar hybrid seeds which came from the floral branches cultured in water has been achieved. Compared with the conventional method, the method of the invention not only can realize good seed quality, but also improve the seed-setting rate, and has a remarkable effect when applied to Populus deltoides artificial hybridization.