助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   rubber tree leaf 的翻译结果: 查询用时:0.007秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

rubber tree leaf
相关语句
  橡胶叶片
     The acute HF -i njury threshold of rubber tree leaf w as determined ac-cording to different concentration,time and harmful degree.
     根据不同熏气浓度、时间和伤害程度,确定了氟化物气体对橡胶叶片伤害的阈值。
短句来源
  相似匹配句对
     THE CHANGE OF WATER IN THE RUBBER TREE ON CHILLING
     热带植物冷害时体内水分变化
短句来源
     Application of Biotechnology on Rubber Tree Breeding
     生物技术在橡胶树育种中的应用
短句来源
     Tree Animation
     树相关运动的模拟
短句来源
     THE OCCURRENCE AND CONTROL OF LEAF SPOT(PERICONIA HEVEAE)OF RUBBER TREE
     橡胶黑团孢属叶斑病及其防治的研究
短句来源
     Rubber Wear
     橡胶的磨耗
短句来源
查询“rubber tree leaf”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  rubber tree leaf
The extracts of the rubber tree leaf tissues, inoculated with T.
      


The present paper deals with the status of manganese(Mn)in rubber trees on 110 rubber plantation at 46 counties in the rubber tree growing regions of China. The content of Mn in rubber tree leaves ranges from 31 to 2167 ppm,averaging 390 ppm which is higher than that in the leaves of normal rubber trees(150—300 ppm).Thus it can be concluded that the present status of Mn in China's rubber trees is higher. Nevertheless,the content of Mn of soil...

The present paper deals with the status of manganese(Mn)in rubber trees on 110 rubber plantation at 46 counties in the rubber tree growing regions of China. The content of Mn in rubber tree leaves ranges from 31 to 2167 ppm,averaging 390 ppm which is higher than that in the leaves of normal rubber trees(150—300 ppm).Thus it can be concluded that the present status of Mn in China's rubber trees is higher. Nevertheless,the content of Mn of soil of rubber plantations in China varies significantly according to different soil types,fertilization and management.The difference between the highest and the lowest contents of total Mn could be as high as 140 times and an even greater difference of 200—1240-fold between the highest and the lowest contents of replaceable and re- ducible Mn has been observed.The storage of reducible Mn is generally insufficient in the soil. Therefore,the symptom of leaf yellowing due to deficiency of Mn has developed in rubber trees in certain parts of rubber tree growing regions in China.The essential oure for leaf yellowing of rubber trees is to raise Mn content in the tree by proper application of fertilizer.The pro- cedures,dosage and timing of the fertilizer for leaf yellowing treatments are suggested.

我国橡胶树叶片含锰量范围为31—2167ppm,平均390ppm,高于橡胶树正常植株叶片含锰量(150—300ppm)。因此,我国橡胶树目前锰素的营养状况是良好的。由于我国植胶区地区广,成土母质和土壤类型复杂,施肥管理水平不同,以及橡胶树在生长和产胶过程中锰素营养的不断消耗,土壤含锰量变幅很大。含锰最高值与最低值相差达140多倍,代换态锰、易还原态锰最高值与最低值相差高达200倍和1240倍。土壤中易还原态锰的贮备也显不足。因此,我国部分植胶区的橡胶树出现缺锰黄叶现象。本文提出了纠正缺锰黄叶症的施肥方法、施肥用量和施肥时期。

The epidemic of anthracnose of rubber trees (Hevea brasiliensis ) caused by Collectotrichium gloeosporioides Penz. outbroke mainly in the plantations with susceptible clones in the west district of Guangdong Province, Wuzhi Mountain district and northwest coastal district of Hainan Island. The optimum conditions for the growth and development of the C. gloeosporioides were:temperature 28℃ , RH100% and pH 6. Darkness favoured spore sermination and mycelial growth, but not sporulation. C. gloeosporioides...

The epidemic of anthracnose of rubber trees (Hevea brasiliensis ) caused by Collectotrichium gloeosporioides Penz. outbroke mainly in the plantations with susceptible clones in the west district of Guangdong Province, Wuzhi Mountain district and northwest coastal district of Hainan Island. The optimum conditions for the growth and development of the C. gloeosporioides were:temperature 28℃ , RH100% and pH 6. Darkness favoured spore sermination and mycelial growth, but not sporulation. C. gloeosporioides had higher spore germination rate in glucose, the extracts of rubber tree leaves and agar than in the water control. C. gloeosporioides mainly infected young leaves and withered twigs of rubber trees and had a wide host range. Infection mainly occurred through wound, stomata and epidermis, and wind and rainfall were the vectors for spread of the pathogen. C. gloeosporioides generally had a latent period of 3 to 6 days, the optimum being 1 to 2 days, and sporulated well at the field temperatures of 21~24℃ and RH greater than 95%, resulting in rapid infection of the pathogen and quick spread of the lesion.

橡胶树炭疽病是危害我国橡胶树的一种重要叶部病害,致病菌为胶孢炭疽菌(Colletotrichuimgloeosporioides(pen2)Sacc)。对其生物学特性研究结果表明,在28℃下,有利于菌丝休生长、产孢和孢子萌发。最适合菌丝体生长的pH值为6。黑暗下有利于孢子萌发和菌丝体生长,但产孢则不如在光照条件下。在100%相对湿度下孢子萌发率最高。在葡萄糖、橡胶叶汁和琼脂胶等营养液中,孢子萌发率高于清水对照。对其侵染特征研究结果表明,主要侵染源为受害嫩梢和半枯死枝条,寄主范围广泛。病菌可从伤口、气孔和表皮3种途径入侵,风雨是传播媒介。潜育期一般3~6d,条件最适宜时潜育期为1~2d。田间气温21~24℃、相对湿度大于95%时,病菌产孢多,侵入迅速,病斑扩展快。

Dose -response of rubber tree seedl ing on hydrogen fluoride(HF)was studied through an experiment of HF -fumigation.Rubber tree seedling emerged with ty pical harmsymptoms.The higher the c oncentration of HF,the more seriously the seedlings were injured,and the higher the accumula tion of leaf fluoride took place.You ng leaf was always injured earlier th an old ones,and fluoride accumulation in old leaf was higher t han that in young ones.The acute HF -i njury threshold of rubber tree leaf w as determined...

Dose -response of rubber tree seedl ing on hydrogen fluoride(HF)was studied through an experiment of HF -fumigation.Rubber tree seedling emerged with ty pical harmsymptoms.The higher the c oncentration of HF,the more seriously the seedlings were injured,and the higher the accumula tion of leaf fluoride took place.You ng leaf was always injured earlier th an old ones,and fluoride accumulation in old leaf was higher t han that in young ones.The acute HF -i njury threshold of rubber tree leaf w as determined ac-cording to different concentration,time and harmful degree.they are 13.2119μg·cm -2 ·d -1 ×2h,5.3061μg·cm -2 ·d -1 ×4h,3.7659μg·cm -2 ·d -1 ×6h,2.0254μg·cm -2 ·d -1 ×8h,1.6253μg·cm -2 ·d -1 ×10h respectively.

通过熏气模拟试验研究了橡胶盆栽幼苗对HF的剂量反应。结果表明,熏气后,橡胶苗出现典型受害症状,熏气浓度越高,受害越严重,叶片氟的积累量也越高;幼叶总是先于老叶受害,并且老叶对于氟的累积量高于幼叶。根据不同熏气浓度、时间和伤害程度,确定了氟化物气体对橡胶叶片伤害的阈值。它们分别是:13.2119μg·cm-2·d-1×2h,5.3061μg·cm-2·d-1×4h,3.7659μg·cm-2·d-1×6h,2.0254μg·cm-2·d-1×8h,1.6253μg·cm-2·d-1×10h。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关rubber tree leaf的内容
在知识搜索中查有关rubber tree leaf的内容
在数字搜索中查有关rubber tree leaf的内容
在概念知识元中查有关rubber tree leaf的内容
在学术趋势中查有关rubber tree leaf的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社