This refers to methods for improving the height of plants and / or the performance of crop plants that are resistant to the herbicide 2,4-d by Treatment of plants with 2,4-d Application with coefficients that are not harmful to plants.In particular, it provides a method that uses the application of 2,4-d to increase the yield of crop plants that Express The Gene AAD - 12 for resistance to 2,4-d.The Method provided is of particular interest for the treatment of crop plants, including corn, soybean, oilseed rape and Winter Spring (canola), Sugar Beets, Sunflower, Wheat, Barley, and Rice.Claim 1: a method to improve the performance of crop plants resistant to 2,4-d, which comprises treating the plants with a stimulating amount of an herbicide that comprises a part ariloxialcanoato.Claim 2: The Method according to claim 1, wherein the Crop plants resistant to 2,4-d are transgenic plants transformed with a ariloxialcanoato dioxygenase (AAD). Claim 2: The Method according to claim 1, wherein the herbicide which comprises a part ariloxialcanoato is a phenoxy herbicide or herbicide phenoxy acetic.Claim 5: The Method according to claim 1, wherein the herbicide which comprises a part ariloxialcanoato is 2,4-d.Claim 23: a method to improve the performance of crop plants resistant to 2,4-d,Comprising: (a) to transform the plant cells with a Nucleic Acid Molecule comprising a Nucleotide sequence that encodes a ariloxialcanoato dioxygenase (AAD)； (b) selecting transformed cells； (e) to regenerate plants from the transformed cells； and (d) ) treat plants with a stimulating amount of an herbicide that comprises a part ariloxialcanoatOr claim 26.: The Method according to claim 25, where the selectable Marker Gene is the phosphinothricin Acetyltransferase (PAT) or the bialafos Resistance gene (bar). Claim 28: the use of 2,4-d in the obtaining of transgenic plants with resistance to 2,4-d with performance that is increased in comparison with their non transgenic parental plants.Claim
