ABSTRACT
SUMMARY. Chilling and freezing temperatures often adversely affect the productivity and quality of horticultural plants. Attempts to enhance cold tolerance through traditional breeding have achieved limited suc cess, mainly due to the complexity of the genetics associated with a p lant’s response to low temperatures. Recently, the improvement o f cold tolerance by genetic engineering has been achieved in many species. Nevertheless, transgenic plants with greater tolerance have been re ported in only a few horticultural examples. Their production has led to a new era in improving performance. In this review, we first present recent advances in understanding cold acclimation. W e then describe a few cases in which improved cold tolerance has been achieved with trans genic plants, doi: 10.1300/J41 Ivl7n01_04 [Article copies available for a fee from The Haworth Document Delivery Service: 1-800-HAWORTH. E-mail ad dress: <docdelivery@haworthpress.com> Website: <https://www.HaworthPress. com> © 2006 by The Haworth Press, Inc. All rights reserved.!
