A fertilizer composition according to an embodiment may reduce methane gas emission. The fertilizer composition includes ethephon as an effective component, and has an excellent effect of reducing the emission amount of methane gas from soils in which crops are cultivated. As the fertilizer application can be reduced to one application, labor can be saved and also environmental contamination can be prevented.

A fertilizer composition according to an embodiment may reduce methane gas emission. The fertilizer composition includes ethephon as an effective component, and has an excellent effect of reducing the emission amount of methane gas from soils in which crops are cultivated. As the fertilizer application can be reduced to one application, labor can be saved and also environmental contamination can be prevented.

Provided are methods and compositions for increasing plant resistance to abiotic stress. The composition may comprise a hydrogel and a priming agent. The methods may include contacting the seed with a seed coating composition comprising a hydrogel and a priming agent.

Described herein are active pouches for obtaining selected release rates of 1-methylcyclopropene (1-MCP) therefrom. A pouch is a sealed thermoplastic containment or envelope defining an interior volume that is excluded from free exchange with the atmosphere, yet is permeable to both 1-MCP gas and water vapor. The active pouches enclose and contain a clathrate of 1-methylcyclopropene with α-cyclodextrin (1-MCP/CD). The rate of 1-MCP release from an active pouch subjected to a selected set of humidity-mediated disgorgement conditions may be varied by varying the interior volume of the active pouch relative to the amount of 1-MCP/CD contained within the active pouch.

Described herein are active pouches for obtaining selected release rates of 1-methylcyclopropene (1-MCP) therefrom. A pouch is a sealed thermoplastic containment or envelope defining an interior volume that is excluded from free exchange with the atmosphere, yet is permeable to both 1-MCP gas and water vapor. The active pouches enclose and contain a clathrate of 1-methylcyclopropene with α-cyclodextrin (1-MCP/CD). The rate of 1-MCP release from an active pouch subjected to a selected set of humidity-mediated disgorgement conditions may be varied by varying the interior volume of the active pouch relative to the amount of 1-MCP/CD contained within the active pouch.

The present invention provides yield enhancing compositions comprising Methylobacterium, methods for improving corn yield, and methods of making the compositions. Also provided are isolated yield enhancing Methylobacterium.

The present invention is directed to methods of improving heat stress tolerance in plants comprising applying an effective amount of 1-amino-1-cyclopropanecarboxylic acid to the plant.

This invention provides an isolate of Chaetomium globosum, which is numbered as 12XP1-2-3, preserved by China General Microbiological Culture Collection Center with CGMCC No. 17183 on Jan. 23, 2019. This invention also provides an application of Chaetomium globosum in wheat growth promotion and yield increase. The results of field trials showed that by coating wheat seeds with Chaetomium globosum 12XP1-2-3, the chlorophyll content of leaves can be increased by 1.9%-14.7% at booting stage, and the wheat yield can be increased by 2.3%-10.9%.

A plant metabolism promoting composition for promoting metabolic processes in plants includes an L-amino acid, or a salt or a derivative thereof, having a chemical formula of HO.sub.2CCH(NH.sub.2)CH.sub.2CH.sub.2CONHR, wherein R is an alkyl or an alkenyl. An amount of the composition applied to one or both of a seed and a plant is sufficient to augment one or more of: i. growth of a plant growing from the seed or growth of the plant, ii. health of a plant growing from the seed or health of the plant, iii. quality of yield from a plant growing from the seed or quality of yield from the plant, and iv. quantity of yield from a plant growing from the seed or quantity of yield from the plant.

A plant metabolism promoting composition for promoting metabolic processes in plants includes an L-amino acid, or a salt or a derivative thereof, having a chemical formula of HO.sub.2CCH(NH.sub.2)CH.sub.2CH.sub.2CONHR, wherein R is an alkyl or an alkenyl. An amount of the composition applied to one or both of a seed and a plant is sufficient to augment one or more of: i. growth of a plant growing from the seed or growth of the plant, ii. health of a plant growing from the seed or health of the plant, iii. quality of yield from a plant growing from the seed or quality of yield from the plant, and iv. quantity of yield from a plant growing from the seed or quantity of yield from the plant.