The present invention disclosed herein provides a method for producing a plant with increased yield as compared to a corresponding wild type plant comprising increasing or generating one or more activities in a plant or a part thereof. The present invention further relates to nucleic acids enhancing or improving one or more traits of a transgenic plant, and cells, progenies, seeds and pollen derived from such plants or parts, as well as methods of making and methods of using such plant cell(s) or plant(s), progenies, seed(s) or pollen. Particularly, said improved trait(s) are manifested in an increased yield, preferably by improving one or more yield-related trait(s), e.g. low temperature tolerance.