小麦抗寒性研究现状与展望

综述小麦抗寒的生理生化指标变化及分子机制,主要包括氨基酸、可溶性糖、脂肪酸、膜保护酶、内源激素、抗寒基因及抗寒蛋白的变化;概括了提高小麦抗寒性的具体措施,如栽培方面进行抗寒锻炼并合理施肥、通过分子杂交培育抗寒新品种,引种驯化及外源化学物质处理;并对小麦抗寒育种方面进行了展望。

Wheat Cold Resistance Research Status and Prospects

The physiological and biochemical changes and molecular mechnisim of cold resistance of wheat were reviewed,including changes of amino acids,soluble sugars,fatty acids,membrane protective enzyme,endogenous hormones,anti-freeze gene and antifreeze protein;Wheat specific measures to improve cold resistance were summarized,such as cold hardening and rational fertilization in cultivation,cultivating new hardy varieties through hybridization,domestication and introduction of exogenous chemical treatment;and wheat breeding for cold resistance was predicted.