不同基因型小麦变水处理的产量效应研究

试验研究不同基因型小麦各时期水分变动对产量的影响结果表明,拔节期水分变动对小麦产量的影响较大,干旱减产效应下普通小麦拔节期干旱处理比充分供水处理减产29.45%,而灌浆期水分亏缺处理仅减产12.70%;与水分胁迫处理相比,普通小麦拔节期复水处理增产42.83%,灌浆期复水增产22.29%,而不同基因型间小麦栽培一粒(A1)拔节期复水仅增产8.76%,栽培二粒(A2)拔节期复水产量下降4.38%。

Yield effect of different wheat genotypes under varied water treatments

The effects of water alteration on the yield of different wheat genotypes and stage were studied.The results(show) that water variation at the jointing stage has a great effect on the yield.Under the effect of dropping yield owing to drought,compared with that of the well-watered treatment,the common wheat yield shrinks 29.45% at jointing stage,but only 12.70% at grainfilling (stage.)(Compared) with that of the water stress treatment,the common wheat yield(increases) 42.83% after rewatering at jointing stage,while increases 22.29%(at) grainfilling stage.Among different wheat genotypes,the yields of Zaipeiyili and Zaipeierli have only a change of 8.76% and 4.38% after rewatering at jointing(stage.)