Provided herein are methods of producing a Cannabis haploid/di-haploid plant in a single generation. The methods comprise (a) obtaining pollen comprising a mutation in DMP8; (b) using the pollen to pollinate a Cannabis plant; (c) collecting a seed from the pollenated Cannabis plant; (d) identifying putative haploid Cannabis plants from the seed; and (e) producing a Cannabis haploid/di-haploid plant in a single generation.

Provided herein are methods of producing a Cannabis haploid/di-haploid plant in a single generation. The methods comprise (a) obtaining pollen comprising a mutation in DMP8; (b) using the pollen to pollinate a Cannabis plant; (c) collecting a seed from the pollenated Cannabis plant; (d) identifying putative haploid Cannabis plants from the seed; and (e) producing a Cannabis haploid/di-haploid plant in a single generation.

Use of a device D in agricultural applications, forestry or home and garden applications, wherein said device D is used for dispensing in the air, as a vapor, an active ingredient that is liquid at ambient temperature, wherein device D contains: —an aeration system that contains a pipe (2, 4, 510) opening into the open air and is configured to allow an airflow to pass through the pipe; —at least one distributor member (8, 208) that is in fluid connection with a storage container and is intended to be supplied with a liquid active ingredient from said storage container, said distributor member containing a porous body (8, 208) that contains micro-channels forming an outlet arranged in said pipe in order to constitute an evaporation zone for the active ingredient therein, wherein the pores present in said porous body are at least a part of the micro-pipes of the distributor member; —a heating member (11, 211, 132) arranged on or in the distributor member so as to control a flow of the active ingredient through the distributor member.

An amino acid fertilizer composition manufactured from livestock farming by-product using acid, alkali and protease treatment. More specifically, the amino acid fertilizer composition may be manufactured by: 1) separating and producing a crude collagen peptide from livestock farming by-product, such as, bovine skin, pig skin or bovine bone using acid and alkali treatment, 2) hydrolyzing the obtained crude collagen peptide using collagen specific protease produced from Bacillus sp. variant Iren-101, and 3) obtaining an amino acid level fertilizer composition.

An amino acid fertilizer composition manufactured from livestock farming by-product using acid, alkali and protease treatment. More specifically, the amino acid fertilizer composition may be manufactured by: 1) separating and producing a crude collagen peptide from livestock farming by-product, such as, bovine skin, pig skin or bovine bone using acid and alkali treatment, 2) hydrolyzing the obtained crude collagen peptide using collagen specific protease produced from Bacillus sp. variant Iren-101, and 3) obtaining an amino acid level fertilizer composition.

A method for promoting the accumulation of secondary metabolites of cannabis is disclosed. The method comprises the step of adding a green-yellow light, which has a peak wavelength at 506-571 nm, into the indoor growing environment for cannabis, and maintaining the light intensity and other growth conditions, to improve the content of secondary metabolites. The production of secondary metabolites of cannabis can be increased by up to 18%.

A plant cultivation device and the like capable of growing a plant while preventing leaves thereof from curling are provided. The device includes: a first illumination irradiating the plant to be cultivated with blue light; a second illumination irradiating the plant with red light; and a controller controlling irradiation of the blue light from the first illumination and irradiation of the red light from the second illumination, wherein the controller controls the blue light irradiation to be performed 21 hours or more a day including a case in which the blue light irradiation is performed 5 hours or more without performing the red light irradiation, and the red light irradiation to be performed 12 hours or more a day.

A plant cultivation device and the like capable of growing a plant while preventing leaves thereof from curling are provided. The device includes: a first illumination irradiating the plant to be cultivated with blue light; a second illumination irradiating the plant with red light; and a controller controlling irradiation of the blue light from the first illumination and irradiation of the red light from the second illumination, wherein the controller controls the blue light irradiation to be performed 21 hours or more a day including a case in which the blue light irradiation is performed 5 hours or more without performing the red light irradiation, and the red light irradiation to be performed 12 hours or more a day.

An object of the present invention is to provide a method that can effectively/efficiently increase the amount of a phenolic compound such as a polyphenol. The invention provides a method for increasing an amount of a phenolic compound in a plant, or a method for producing a plant containing an increased amount of a phenolic compound, the method comprising irradiating the/a plant with ultraviolet light, wherein a fluence at wavelengths of 270 to 290 nm is 1500 to 50000 μmol/m.sup.2 and a fluence at wavelengths of 310 to 400 nm is less than 50% of that at wavelengths of 270 to 290 nm.

A light source for plant cultivation and a plant cultivation method are provided. The plant cultivation method includes planting germinated seeds of a plant; and growing the plant by applying light treatment to the plant. In growing the plant, main light treatment of supplying main light to the plant and dark treatment of cutting off supply of the main light to the plant are alternated. The main light has at least two peak wavelengths in the visible light spectrum. In addition, the main light has a PPFD of greater than 92 mol/m.sub.2/s to less than 198 mol/m.sup.2/s.