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对四倍体波兰小麦（Ｔ．ｐｏｌｏｎｉｃｕｍ）、六倍体印度矮生小麦（Ｔ．ｓｐｈａｅｒｏｃｏｃｃｕｍ）和普通小麦（Ｔ．ａｅｓｔｉｖｕｍ）进行全生育期水分迫胁处理研究了籽粒生长过程中碳、氮代谢产物的积累及其变化，结果表明：水分胁迫导致籽粒中可溶性糖和氨基酸含量降低，对前者的影响尤以籽粒形成初期对波兰、印度矮生小麦的程度大，后者在开花后期更为明显，处理间达显著差异；水分胁迫降低Ｔ．ａｅｓｔｉｖｕｍ和Ｔ．ａｐｈａｅｒｏｃｏｃｃｕｍ的全碳、全氮含量，而增加Ｔ．ｐｏｌｏｎｉｃｕｍ两者的含量；波兰小麦的干物质积累速率受水分胁迫影响很小，表现出较好的高产耐旱性。本文对不同小麦种和碳、氮积累模式进行了比较。
Toxicity of T.polonicum, T.sphaerococcum and T.aestivum to water stress during the whole growth period was studied to study the effects of carbon and nitrogen metabolism during grain growth The results showed that water stress led to the decrease of soluble sugar and amino acid content in the grain, especially the effect on the former in Poland and India and the later was more obvious in the late flowering stage , Significant difference between treatments; water stress decreased T. aestivum and T. Aphaerococcum all-carbon, total nitrogen content, but increased T. polonicum content of both; Polish wheat dry matter accumulation rate is little affected by water stress, showing good high yield and drought tolerance. In this paper, different wheat species and carbon and nitrogen accumulation patterns were compared.