Pea (Pisum sativum L.) is a major pulse crop important as feed and food. Due to the symbiosis with N-fixing bacteria, it is a valuable component of low-input cropping systems. The traditional cultivation of peas was limited by their high susceptibility to lodging. This problem was reduced, though not completely solved, by a semi-leafless mutant. Almost all modern cultivars carry this mutant. It is still an open question as to whether the lack of leaflets may have impaired the productivity. In organic farming, there is still interest in normal-leafed peas as they can better compete with weeds. To compare the two leaf types, 24 normal-leafed and 30 semi-leafless genotypes were evaluated in three environments. Semi-leafless genotypes had a higher seed (51%) and straw (40%) yield, but most normal-leafed genotypes were older or less adapted than the semi-leafless ones. Some newer normal-leafed cultivars achieved the same yield level, but their cultivation is only possible in mixtures with a supporting crop. Nitrogen content in seed (10%) and in straw (30%) was lower in semi-leafless genotypes. A negative correlation of yield and N content was observed in both leaf types. However, semi-leafless peas had a higher N yield in seed and in straw. No correlation between N yield in seed and straw was found, so it is possible to combine a high seed yield with a high N yield in the straw. This is particularly important in organic production systems, where peas are also grown to provide N to the following crop.

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正常叶和半无叶豌豆 (Pisum sativum L.) 基因型的农艺性能

豌豆_L.) 是一种重要的豆类作物，作为饲料和食品很重要。由于与固氮细菌共生，它是低投入种植系统的重要组成部分。豌豆的传统种植受限于它们对倒伏的高度敏感性。这个问题被一个半无叶的突变体减少了，虽然没有完全解决。几乎所有现代品种都携带这种突变体。至于缺乏传单是否会影响生产力，这仍然是一个悬而未决的问题。在有机农业中，人们仍然对普通豌豆感兴趣，因为它们可以更好地与杂草竞争。为了比较两种叶型，在三种环境中评估了 24 种正常叶基因型和 30 种半无叶基因型。半无叶基因型的种子（51%）和稻草（40%）产量较高，但大多数正常有叶基因型比半无叶基因型更老或适应性较差。一些较新的正常叶品种达到了相同的产量水平，但它们的栽培只能与辅助作物混合种植。半无叶基因型的种子 (10%) 和稻草 (30%) 中的氮含量较低。在两种叶型中都观察到产量和氮含量呈负相关。然而，半无叶豌豆在种子和稻草中的氮产量较高。没有发现种子和秸秆中的氮产量之间存在相关性，因此可以将高种子产量与秸秆中的高氮产量结合起来。这在有机生产系统中尤为重要，在有机生产系统中，豌豆也被种植以向下一个作物提供氮。半无叶基因型的种子 (10%) 和稻草 (30%) 中的氮含量较低。在两种叶型中都观察到产量和氮含量呈负相关。然而，半无叶豌豆在种子和稻草中的氮产量较高。没有发现种子和秸秆中的氮产量之间存在相关性，因此可以将高种子产量与秸秆中的高氮产量结合起来。这在有机生产系统中尤为重要，在有机生产系统中，豌豆也被种植以向下一个作物提供氮。半无叶基因型的种子 (10%) 和稻草 (30%) 中的氮含量较低。在两种叶型中都观察到产量和氮含量呈负相关。然而，半无叶豌豆在种子和稻草中的氮产量较高。没有发现种子和秸秆中的氮产量之间存在相关性，因此可以将高种子产量与秸秆中的高氮产量结合起来。这在有机生产系统中尤为重要，在有机生产系统中，豌豆也被种植以向下一个作物提供氮。