seed leaf

简明释义

子叶

英英释义

例句

1.After a week, the seed leaf 种子叶 began to unfurl, signaling healthy growth.

一周后，种子叶 种子叶开始展开，预示着健康的生长。

2.The seed leaf 种子叶 provides nutrients to the young plant until true leaves develop.

种子叶 种子叶为幼苗提供养分，直到真正的叶子发育出来。

3.The first thing you notice when the plant sprouts is the bright green seed leaf 种子叶 emerging from the soil.

你会注意到植物发芽时，明亮的绿色种子叶 种子叶从土壤中冒出来。

4.A seed leaf 种子叶 is essential for the initial growth of many plants.

对于许多植物来说，种子叶 种子叶对初期生长至关重要。

5.In botany, the term seed leaf 种子叶 refers to the first leaves that appear after germination.

在植物学中，术语种子叶 种子叶指的是发芽后出现的第一片叶子。

作文

In the world of botany, understanding the various stages of plant development is crucial. One of the most fascinating aspects of this process is the formation of the first leaves that emerge from a seed. These initial leaves are known as seed leaves, or in botanical terms, cotyledons. They play an essential role in the early growth of a plant, serving as a source of nourishment and energy until the plant can develop its true leaves. When a seed germinates, it absorbs water and swells, eventually breaking through its outer shell. The first part of the seed that emerges is typically the seed leaf. This structure is not only vital for the plant's survival but also serves as a temporary food source. The seed leaf contains stored nutrients that help the young plant grow and establish itself in the soil. As the plant continues to develop, it will begin to produce true leaves that are capable of photosynthesis, allowing it to create its own food. The importance of seed leaves extends beyond just providing nourishment. They also play a significant role in the plant's overall morphology and adaptation to its environment. Different types of plants have evolved various shapes and sizes of seed leaves to optimize their chances of survival. For instance, some plants may have broad seed leaves that can capture more sunlight, while others might have narrow ones that reduce water loss in arid conditions. In agriculture, understanding the role of seed leaves can greatly impact crop yield and management practices. Farmers and horticulturists often pay close attention to the health and development of seed leaves during the early stages of planting. A robust seed leaf can indicate a strong start for the plant, suggesting that it will be able to thrive as it matures. Conversely, if the seed leaves are weak or damaged, it could signal potential problems that may affect the entire crop. Furthermore, the study of seed leaves can provide insights into plant genetics and evolution. By examining the characteristics of seed leaves across different species, scientists can learn about the relationships between plants and how they have adapted to their environments over time. This knowledge is not only fascinating from a scientific perspective but also has practical applications in conservation and biodiversity efforts. In conclusion, seed leaves are more than just the first leaves of a plant; they are a critical component of plant development and survival. Their role in providing nutrition, influencing plant morphology, and informing agricultural practices highlights their significance in the plant kingdom. As we continue to explore the intricate world of botany, the study of seed leaves remains an essential area of research that can lead to greater understanding and appreciation of the natural world around us.

在植物学的世界中，理解植物发育的各个阶段至关重要。这个过程最迷人的方面之一是从种子中出现的第一片叶子的形成。这些初始叶子被称为种子叶，或者在植物学术语中称为胚轴。它们在植物的早期生长中扮演着重要角色，作为营养和能量的来源，直到植物能够发展出真正的叶子。当种子发芽时，它会吸收水分并膨胀，最终打破外壳。通常，第一个出现的部分是种子叶。这个结构不仅对植物的生存至关重要，也作为临时食物来源。种子叶含有储存的营养物质，帮助幼苗生长并在土壤中扎根。随着植物的继续发育，它将开始产生能够进行光合作用的真正叶子，使其能够制造自己的食物。种子叶的重要性不仅仅在于提供营养。它们在植物的整体形态和适应环境中也起着重要作用。不同类型的植物已经进化出各种形状和大小的种子叶，以优化生存的机会。例如，一些植物可能具有宽阔的种子叶，可以捕获更多阳光，而另一些可能具有狭窄的叶子，以减少干旱条件下的水分流失。在农业中，理解种子叶的作用可以大大影响作物产量和管理实践。农民和园艺师通常会密切关注种子叶在播种早期阶段的健康和发育。强壮的种子叶可以表明植物的良好开端，暗示它能够在成熟时蓬勃发展。相反，如果种子叶虚弱或受损，这可能会预示潜在问题，从而影响整个作物。此外，对种子叶的研究可以为植物遗传学和进化提供见解。通过检查不同物种之间种子叶的特征，科学家可以了解植物之间的关系，以及它们如何随着时间的推移适应环境。这些知识不仅从科学角度上令人着迷，而且在保护和生物多样性工作中也具有实际应用。总之，种子叶不仅仅是植物的第一片叶子；它们是植物发育和生存的关键组成部分。它们在提供营养、影响植物形态和指导农业实践中的作用突显了它们在植物王国中的重要性。随着我们继续探索复杂的植物世界，种子叶的研究仍然是一个重要的研究领域，可以带来更深入的理解和对我们周围自然世界的欣赏。