A transgenic plant transformed by a Lectin-like Protein Kinase Stress-Related Polypeptide (LPKSRP) coding nucleic acid, wherein expression of the nucleic acid sequence in the plant results in increased plant growth and/or increased tolerance to an environmental stress as compared to a wild type variety of the plant. Also provided are agricultural products, including seeds, produced by the transgenic plants. Also provided are isolated LPKSRPs, and isolated nucleic acids coding LPKSRPs, and vectors and host cells containing the latter.