提高小麦氮素利用效率的可行性分析

为了进一步给氮素高效利用小麦品种选育提供理论依据，对以往国内外小麦氮素利用方面的研究工作进行梳理。结果表明，通过常规育种或基因工程选育氮素高效利用小麦品种在实践上具有可行性。阐明氮素代谢途径关键调控基因对最终氮素利用的贡献率有利于今后通过基因工程或分子标记育种途径提高小麦氮素利用效率。中国大规模、多年多点筛选鉴定氮素高效利用小麦种质资源的研究亟待开展。

Improving Nitrogen Utilisation Efficiency of Wheat: the Analysis of Feasibility

Abstract: In order to breed wheat varieties with high efficient nitrogen utilization, several guidelines were teased out from previous works both at home and abroad. The paper indicates that breeding efficient nitrogen utilization wheat is feasible by traditional breeding approach or genetic modification. Clarifying the contribution of key regulating genes involved in nitrogen metabolism to final nitrogen utilization can facilitate further improvement of nitrogen utilization by genetic modification or molecular marker assisted breeding. Widely, year to yearand multiple sites screening of wheat germplasm resources with efficient nitrogen utilization is highly required in China.