darnel

简明释义

英[/ˈdɑrnəl/]美[/ˈdɑrnəl/]

n. 毒麦

英英释义

单词用法

同义词

反义词

例句

1.There are some filamentous endophytic fungi living in darnel (L. temulentum) and producing temuline which results in the nerve system poisoning or death of human being and live stocks.

内也存在丝状内生真菌，产生毒麦碱，引起人和动物神经系统中毒，严重的甚至会死亡，同时能诱发部分黑麦草属植物发生盲种病。

2.There are some filamentous endophytic fungi living in darnel (L. temulentum) and producing temuline which results in the nerve system poisoning or death of human being and live stocks.

内也存在丝状内生真菌，产生毒麦碱，引起人和动物神经系统中毒，严重的甚至会死亡，同时能诱发部分黑麦草属植物发生盲种病。

3.We know this and the Lord himself told us so: it is a net with good fish and bad fish, a field with wheat and darnel.

上主也曾亲自说：教会是一张装有好鱼和坏鱼的鱼网，也是一块长有麦子和莠子的田地。

4.The farmer was concerned about the spread of darnel in his wheat fields.

农民担心他的麦田中传播了杂草。

5.Many people mistakenly believe that darnel is a type of wheat.

许多人错误地认为杂草是一种小麦。

6.In ancient times, darnel was often confused with good grain.

在古代，杂草常常与优质谷物混淆。

7.The presence of darnel can reduce the quality of harvested grain.

存在杂草会降低收获谷物的质量。

8.Farmers must regularly check their crops for darnel to prevent contamination.

农民必须定期检查他们的作物，以防止被杂草污染。

作文

In the vast fields of agriculture, the relationship between crops and weeds is a topic of great importance. One particular weed that has captured the attention of farmers and botanists alike is the darnel. This plant, known scientifically as *Lolium temulentum*, is often considered a troublesome invader in cereal crops, particularly wheat. The darnel is notorious for its ability to mimic the appearance of young wheat plants, making it difficult for farmers to distinguish between the two during early growth stages. This resemblance can lead to significant economic losses, as darnel competes for nutrients, water, and sunlight, ultimately affecting the yield of the desired crop. The history of darnel is quite fascinating. It has been cultivated since ancient times, often mistakenly sown alongside wheat. The Romans even referred to darnel as 'cereal' due to its close association with grain crops. However, the plant is not just a nuisance; it possesses some interesting characteristics. For instance, darnel contains alkaloids that can be toxic if ingested in large quantities. This toxicity can cause symptoms such as dizziness, nausea, and even hallucinations. Consequently, farmers must be vigilant in managing darnel to prevent it from contaminating their harvests. Despite its negative reputation, darnel has also found its place in the ecosystem. Like many weeds, it plays a role in supporting biodiversity. It provides habitat and food for various insects and birds, contributing to the overall health of the agricultural landscape. Some researchers argue that instead of completely eradicating darnel, farmers should adopt integrated pest management strategies that allow them to coexist with this weed while minimizing its impact on crop production. In recent years, the study of darnel has expanded beyond agriculture. Scientists are investigating its genetic makeup and potential uses in medicine. The alkaloids found in darnel may have therapeutic properties that could be harnessed for human health. This research highlights the importance of understanding even the most unwanted plants, as they may hold secrets that can benefit humanity. The battle against darnel is ongoing, and farmers continue to seek effective methods to control its spread. Crop rotation, manual weeding, and the use of herbicides are common practices employed to manage this weed. However, the challenge lies in finding a balance between controlling darnel and maintaining a healthy ecosystem. Sustainable agriculture practices encourage farmers to consider the long-term effects of their actions on the environment. In conclusion, the darnel serves as a reminder of the complexities of agricultural systems. While it poses challenges to crop production, it also contributes to the ecological balance. Understanding the dual nature of plants like darnel can lead to more sustainable farming practices that benefit both farmers and the environment. As we continue to explore the intricacies of our natural world, we may find that even the most troublesome weeds can teach us valuable lessons about resilience and coexistence.

在广阔的农业领域，作物与杂草之间的关系是一个非常重要的话题。一个特别引起农民和植物学家注意的杂草是darnel。这种植物，科学上称为*Lolium temulentum*，常常被认为是在谷物作物中麻烦的入侵者，尤其是小麦。darnel以其能够模仿幼小小麦植物的外观而闻名，这使得农民在早期生长阶段很难区分两者。这种相似性可能导致显著的经济损失，因为darnel与小麦争夺养分、水分和阳光，最终影响所需作物的产量。 darnel的历史相当迷人。它自古以来就被种植，常常与小麦错误地播种在一起。罗马人甚至把darnel称为“谷物”，因为它与谷物作物的密切关系。然而，这种植物不仅仅是个麻烦；它具有一些有趣的特性。例如，darnel含有生物碱，如果大量摄入可能会产生毒性。这种毒性可能导致头晕、恶心，甚至幻觉。因此，农民必须警惕管理darnel，以防止其污染收成。 尽管声誉不佳，darnel在生态系统中也找到了自己的位置。像许多杂草一样，它在支持生物多样性方面发挥着作用。它为各种昆虫和鸟类提供栖息地和食物，有助于农业景观的整体健康。一些研究人员认为，农民应该采取综合害虫管理策略，让他们与这种杂草共存，同时最小化其对作物生产的影响，而不是完全消灭darnel。 近年来，对darnel的研究超越了农业。科学家们正在研究其遗传构成和在医学中的潜在用途。发现于darnel中的生物碱可能具有治疗特性，可以为人类健康所利用。这项研究突显了理解即使是最不受欢迎的植物的重要性，因为它们可能蕴藏着可以造福人类的秘密。 与darnel的斗争仍在继续，农民不断寻求有效的方法来控制其传播。轮作、人工除草和使用除草剂是控制这种杂草的常用做法。然而，挑战在于找到控制darnel与维持健康生态系统之间的平衡。可持续农业实践鼓励农民考虑其行为对环境的长期影响。 总之，darnel提醒我们农业系统的复杂性。虽然它对作物生产构成挑战，但它也有助于生态平衡。理解像darnel这样的植物的双重性质可以导致更可持续的农业实践，既有利于农民，也有利于环境。随着我们继续探索自然世界的复杂性，我们可能会发现，即使是最麻烦的杂草也能教给我们关于韧性和共存的宝贵经验。