Waterlogging is a severe stress that constrains crop production. We studied ecophysiological traits related to waterlogging tolerance in wheat, barley oilseed rape and field pea. Outdoor experiments using canopies of wheat (Triticum aestivum L.), barley (Hordeum vulgare L.), oilseed rape (Brassica napus L.) and field pea (Pisum sativum L.) were subjected to a 14-day-waterlogging at early (vegetative) or late (reproductive) stages and a non-waterlogged treatment (as control). Leaf area index (LAI), radiation interception, radiation use efficiency (RUE) and aerial dry matter were monitored along the life-cycle; quantifying yield and its components at maturity. Wheat was able to withstand waterlogging, with similar yields than controls. Barley showed no differences in yield at early stage, but late-waterlogging resulted in 64%–66% lower yield owing to fewer spikes/m² and poor recovery of radiation interception and RUE. Oilseed rape showed yield penalization due to waterlogging, but responses differed from 17%–30% to 42%–69% for early and late stages, respectively; due to the limited ability to restore radiation interception and RUE in late stage; and the additional losses in seed number and weight. Field pea was unable to restore LAI, radiation interception, or RUE and suffered substantial yield reductions (85%–100%). Wheat could be cultivated in areas prone to transient waterlogging (i.e., early or late stages) of up to 2 weeks; barley and rapeseed are recommended only with waterlogging occurring in early stages and field pea is not suitable for areas facing waterlogging.

中文翻译：

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通过叶面积指数，辐射截获和辐射利用效率的变化，早涝和后期涝对小麦，大麦，油菜和豌豆的产量有不同的影响。

涝灾是限制作物生产的严重压力。我们研究了与小麦，大麦油菜和豌豆的耐涝性相关的生态生理特性。使用小麦（Triticum aestivum L.），大麦（Hordeum vulgare L.），油料油菜（Brassica napus L.）和豌豆（Pisum sativum）的冠层进行户外试验L.）在早期（植物性）或晚期（生殖）阶段进行了14天的涝渍处理，并进行了非涝渍处理（作为对照）。在整个生命周期中监测叶面积指数（LAI），辐射截留，辐射利用效率（RUE）和空气干物质；在到期时量化收益及其组成部分。小麦能够承受涝灾，单产与对照相似。大麦早期没有表现出产量差异，但后期淹水导致穗数/ m ²减少，导致单产降低64％–66％辐射拦截和RUE的恢复较差。油菜由于内涝而表现出产量损失，但早期和晚期的响应率分别从17％–30％到42％–69％不等。由于后期恢复辐射拦截和RUE的能力有限；以及种子数量和重量的额外损失。豌豆无法恢复LAI，辐射拦截或RUE，并且产量大幅下降（85％–100％）。小麦可以在容易发生长达两周的短暂涝灾（即早期或晚期）的地区种植；大麦和油菜籽仅建议在早期出现涝渍的情况下使用，而豌豆不适用于面临涝渍的地区。