chlorosis

简明释义

英[klɔːˈrəʊsɪs]美[kləˈroʊsɪs]

n. 变色病；[植保] 萎黄病

复 数 c h l o r o s e s

英英释义

单词用法

同义词

反义词

例句

1.The active iron content of leaves positively correlate to degree of chlorosis and chlorophyll content, it can be a reference index to screen Fe-efficient grapevine genotype.

叶片活性铁含量与黄化程负相关，可作为参考指标应用于铁高效基因型葡萄品种的筛选。

2.Iron deficiency is characterized by chlorosis between veins in young leaves.

缺铁的特征是嫩叶的叶脉之间萎黄。

3.An incr eased leaf weight ratio (LWR) and inter-veinal chlorosis evidenced in boron deficient leaves may indicate excessive carbohydrate accumulation, leading to a decline in chlorophyll content.

缺硼也提高叶片重量比(LWR)并导致叶脉间失绿，说明缺硼叶片可能过量碳水化合物积累，引起叶绿素降解。

4.The result indicated that all the addition of Fe treatments can increase the content of Fe and chlorophyll of leaves, and the ratio of chlorosis branches and grades of chlorosis were decreased.

结果表明：各种补铁措施均可提高叶片中活性铁及叶绿素含量，使黄叶病树病梢率和失绿级数下降。

5.The popularity of iron-deficit chlorosis has affected the growing of plants and the quality of fruits, and finally the human health.

近年来植物缺铁黄化病的普遍发生，影响了植物正常生长发育，尤其是果实的品质及人类的健康。

6.An incr eased leaf weight ratio (LWR) and inter-veinal chlorosis evidenced in boron deficient leaves may indicate excessive carbohydrate accumulation, leading to a decline in chlorophyll content.

缺硼也提高叶片重量比(LWR)并导致叶脉间失绿，说明缺硼叶片可能过量碳水化合物积累，引起叶绿素降解。

7.It is important to replace cleft grafting and cutting grafting with belly grafting as a method of top working to correct chlorosis and improve growth of new cultivar.

用腹接取代劈接和切接作为果树高接更新品种的方法对于克服缺铁失绿症、促进更新品种生长具有重要意义。

8.Frequently, crop plants do not take up adequate amounts of iron from the soil, leading to chlorosis, poor yield and decreased nutritional quality.

农作物经常不能从土壤中吸收充足的铁营养以供正常生长的需求，从而导致失绿症、产量降低和营养品质下降。

9.Excess zinc often produces iron chlorosis.

锌素过量还经常出现铁的褪绿症。

10.To treat chlorosis 叶绿素缺乏症, the farmer applied iron chelate to the soil.

为了治疗chlorosis 叶绿素缺乏症，农民在土壤中施加了铁螯合物。

11.The plant's chlorosis 叶绿素缺乏症 was attributed to nutrient deficiencies.

植物的chlorosis 叶绿素缺乏症被归因于养分缺乏。

12.Symptoms of chlorosis 叶绿素缺乏症 include yellowing leaves and stunted growth.

症状包括叶子发黄和生长受阻的chlorosis 叶绿素缺乏症。

13.The university conducted research on chlorosis 叶绿素缺乏症 and its impact on crop yields.

大学对chlorosis 叶绿素缺乏症及其对作物产量的影响进行了研究。

14.The gardener noticed signs of chlorosis 叶绿素缺乏症 in the leaves of the tomato plants.

园丁注意到番茄植物的叶子出现了chlorosis 叶绿素缺乏症的迹象。

作文

Chlorosis is a term used in botany to describe a condition where leaves produce insufficient chlorophyll, leading to a yellowing of the leaves. This phenomenon can be caused by various factors, including nutrient deficiencies, poor soil conditions, or diseases. Understanding chlorosis (叶绿素缺乏症) is essential for anyone interested in plant care or agriculture, as it can significantly impact plant health and growth. When plants experience chlorosis (叶绿素缺乏症), the first noticeable symptom is often the yellowing of the leaves, particularly the younger ones. This yellowing occurs because chlorophyll, the pigment responsible for the green color in plants, is not being produced adequately. Without sufficient chlorophyll, plants cannot effectively perform photosynthesis, which is crucial for their energy production. As a result, the overall vigor of the plant diminishes, leading to stunted growth and reduced yields. There are several reasons why chlorosis (叶绿素缺乏症) may occur. One common cause is nutrient deficiency, particularly a lack of nitrogen, iron, or magnesium. These nutrients play vital roles in chlorophyll production and overall plant health. For instance, iron is essential for the formation of chlorophyll, and its deficiency can lead to interveinal chlorosis, where the tissue between the leaf veins turns yellow while the veins themselves remain green. Another cause of chlorosis (叶绿素缺乏症) can be related to soil pH. When the soil is too alkaline or too acidic, it can hinder a plant's ability to absorb certain nutrients, even if they are present in the soil. This nutrient lockout can lead to symptoms of chlorosis (叶绿素缺乏症), emphasizing the importance of maintaining proper soil conditions for healthy plant growth. In addition to nutrient deficiencies and soil conditions, diseases and pests can also lead to chlorosis (叶绿素缺乏症). Certain pathogens can disrupt the plant's ability to produce chlorophyll or damage the leaves, resulting in yellowing. Similarly, pests such as aphids or spider mites can feed on plant sap, weakening the plant and causing chlorosis (叶绿素缺乏症) as a secondary effect. To address chlorosis (叶绿素缺乏症), it is crucial to identify the underlying cause. If nutrient deficiency is suspected, soil tests can help determine which nutrients are lacking. Once identified, fertilizers can be applied to replenish these nutrients and restore the plant's health. If soil pH is an issue, amendments can be made to adjust it to a more suitable level. In cases where pests or diseases are involved, appropriate treatments should be administered to protect the plant. In conclusion, understanding chlorosis (叶绿素缺乏症) is vital for anyone involved in gardening or agriculture. By recognizing the symptoms and causes of this condition, one can take proactive measures to ensure plants remain healthy and productive. Whether through proper nutrition, soil management, or pest control, addressing chlorosis (叶绿素缺乏症) can lead to thriving plants and successful harvests.

叶绿素缺乏症是植物学中用来描述一种叶子产生不足的叶绿素的情况，导致叶子发黄。这种现象可能由多种因素引起，包括营养缺乏、土壤条件不良或疾病。理解chlorosis（叶绿素缺乏症）对任何对植物护理或农业感兴趣的人来说都是至关重要的，因为它会显著影响植物的健康和生长。当植物经历chlorosis（叶绿素缺乏症）时，最明显的症状通常是叶子，特别是年轻叶子的发黄。这种发黄发生的原因是因为叶绿素，即负责植物绿色的色素，未能充分产生。没有足够的叶绿素，植物无法有效地进行光合作用，而光合作用对植物的能量生产至关重要。因此，植物的整体活力减弱，导致生长缓慢和产量减少。导致chlorosis（叶绿素缺乏症）的原因有很多。一个常见的原因是营养缺乏，特别是氮、铁或镁的缺乏。这些营养素在叶绿素的生产和植物的整体健康中发挥着至关重要的作用。例如，铁对于叶绿素的形成至关重要，其缺乏可能导致叶脉间的黄化，即叶片的组织在叶脉之间变黄，而叶脉本身保持绿色。另一个导致chlorosis（叶绿素缺乏症）的原因可能与土壤pH值有关。当土壤过于碱性或过于酸性时，会阻碍植物吸收某些营养素，即使这些营养素存在于土壤中。这种营养锁定可能导致chlorosis（叶绿素缺乏症）的症状，强调了保持适当土壤条件以促进健康植物生长的重要性。除了营养缺乏和土壤条件外，疾病和害虫也可能导致chlorosis（叶绿素缺乏症）。某些病原体可以干扰植物产生叶绿素的能力或损害叶子，导致发黄。同样，像蚜虫或红蜘蛛这样的害虫可以以植物汁液为食，使植物虚弱，导致chlorosis（叶绿素缺乏症）作为次要效应。要解决chlorosis（叶绿素缺乏症），关键是确定根本原因。如果怀疑是营养缺乏，可以通过土壤测试来帮助确定缺乏哪些营养素。一旦确定，可以施用肥料来补充这些营养素并恢复植物的健康。如果土壤pH值是问题，可以进行调整以达到更合适的水平。在涉及害虫或疾病的情况下，应采取适当的处理措施以保护植物。总之，理解chlorosis（叶绿素缺乏症）对任何参与园艺或农业的人来说都是至关重要的。通过识别这种情况的症状和原因，可以采取主动措施确保植物保持健康和高产。无论是通过适当的营养、土壤管理还是害虫控制，解决chlorosis（叶绿素缺乏症）都可以导致植物蓬勃生长和成功的收成。