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马尾松
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  masson pine
    STUDY ON CHEMICAL COMPONENTS AND RESISTANCE MECHANISM TO PINE WOOD NEMATODE OF MASSON PINE PROVENANCE(Ⅲ)--Study on contents variation of neutral terpenoids of resistant provenance of P. massoniana after inoculating Bursaphelenchus xylophilus
    抗松材线虫病马尾松种源化学成分与抗性机理研究(第Ⅲ报)——接种松材线虫引起抗性马尾松种源中性萜类含量变化关系的研究
短句来源
    The results shown:when 50% of needles of 5~10 years old masson pine were damaged,the height growth was affected greatly by the generation of caterpillar living through winter.
    结果表明:5~10年生马尾松针叶损失50%时,越冬代对当年高生长有显著的影响;
短句来源
    A series of investigation and experiments shows that the pathogenic fungus of masson Pine blister rust is Cronartium flaccidum (Alb.et Schw.) Winter,and the fungus alternate host is Paeonia obovata Haxim.
    经系列实验证明马尾松疱锈病菌的转主寄主为芍药科的山芍药( Paeonia obovata Haxim ),病原菌为松芍柱锈菌( Cronartium flaccidum ( Alb. et Schw .) W inter)。
短句来源
    Calli of black pine and masson pine were successfully induced in the tissue culture medium,1/2MS+2,4-D10.0mg/1+KT4.0mg/1+6-BA4.0mg/1,when the mature embryos were inoculated and cultured on the dark condition under 27±1℃. The calli inducing rate were reached 89% and 90% respectively.
    用成熟胚接种于 1 2MS +2 ,4 -D10 .0mg L +KT4 .0mg L +6 -BA4 .0mg L的培养基中 ,在 2 7± 1℃黑暗条件下诱导 ,成功地诱导出黑松和马尾松的愈伤组织 ,且诱导率分别高达 89%和 90 %。
短句来源
    ④ The resistance induced in masson pine;
    ④马尾松的诱导抗病性;
短句来源
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  masson pines
    FIRST STUDY ON THE PATHOGENICITY OF Bursaphelenchus mucronatus TO WEEK MASSON PINES
    拟松材线虫对马尾松致病性的研究初报
短句来源
    Bursaphelenchus mucronatus were inoculated in masson pines on Nanshan Mountain, Chongqing.
    用拟松材线虫(Bursaphelenchus mucronatus)接种重庆南山马尾松(Pinus massoniana)。
短句来源
    Au investigation on the cause of Pinus massoniana wilt in the areas beinginfected with pine wood nematode(PWN)in Jiangsu Province was carriedout from 1987 to 1988.Among the 143 samples collected from wilted or wilting Masson pines in sevsral stands,94(65.7%)were found to have beeninfected by PWN.
    1987—1988年在江苏南京—镇江松材线虫疫区内采(征)集143份自然枯死或濒死马尾松样本,在94份(65.7%)样本中查见松材线虫。 有关林分中马尾松的病枯情况不一,在句容桥头一下蜀一线、江宁汤山和六合方山等处有过相当多的马尾松发病死亡。
短句来源
    Artificial inoculation ofMasson pines grown in forest zone also proved preliminarily that resistanceof Masson pines to PWN varied with ages of the trees Seedlings of 1 to 2year-old and grown trees of over 25 year-old were highly and medianlysusceptible to PWN,respectively,with disease incidences of 85.7% and about30% respectively.
    1—2年生马尾松苗高感松材线虫,病枯株率高达85.7%; 树龄25年以上的成材树病枯株率约30%;
短句来源
  “马尾松”译为未确定词的双语例句
    A STUDY ON PATHOGEN AND THE ALTERNATE HOST OF BLISTER RUST OF MASSONIANA PINE
    马尾松疱锈病病原及转主寄主的研究
短句来源
    Study on Quantity Classification of Ecological Factors of Pinus massoniana Stands in Quzhou
    衢州市马尾松林生态因素数量分类的研究
短句来源
    A Study on Gilpinia massoniana
    马尾松吉松叶蜂研究
短句来源
    ON THE INFECTION OF PINUS MASSONIANA BY PINE WOOD NEMATODE,BURSAPHELENCHUS XYLOPHIUS
    马尾松(Pinus massoniana)感染松材线虫(Bursaphelenchus xylophilus)的研究
短句来源
    A Preliminary Study of Spider Communities in Pinus messoniana Forests in Hunan Province
    湖南马尾松林蜘蛛群落研究初报
短句来源
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  masson pine
Organic acid exudation from the roots of Chinese fir (Cunninghamia lanceolata) and Masson pine (Pinus massoniana) seedlings under low phosphorus stress was studied using the solution culture method.
      
The results revealed that organic acid exudation from the roots of Chinese fir and Masson pine seedlings under low phosphorus stress increased.
      
Compared with P3 (KH2PO4, 0.5 mmol/L), the average organic acid exudation from the root of Masson pine seedlings under P0 (KH2PO4, 0 mmol/L), P1 (KH2PO4, 0.03 mmol/L) and P2 (KH2PO4, 0.09 mmol/L) increased by 328.6%, 267.9% and 126.4% respectively.
      
Masson pine from Zhejiang Province in China had the highest organic acid exudation.
      
Under low phosphorus stress, the increase in organic acid exudation from the different provinces of Chinese fir and Masson pine varied.
      
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  masson pines
There are about 2000 ha of forest, mainly Masson pines (Pinus massoniana Lamb) which have exhibited decline since the beginning of the 1980s.
      
Surveys of stands estimated that 85% of Masson pines are injured.
      
Symptomology of Masson pines includes tip necrosis of needles, thin crown, reduced needle length, premature abscission, branch dieback, reduced radial growth.
      


The peach leaf hopper, Erythroneura sp., is one of the important insect pests of thepeach tree in Kiangsu Province. There were four overlapping generations a year. Theoverwintering adults became active in the middle of March, and migrated immediately tothe peach trees as soon as the young leaves sprouted out. They could not develop on theleaves of broad bean, cabbage and radish. The appearance of adult stage of each generation was as follows:The overwintering adults hid among several evergreen trees such as...

The peach leaf hopper, Erythroneura sp., is one of the important insect pests of thepeach tree in Kiangsu Province. There were four overlapping generations a year. Theoverwintering adults became active in the middle of March, and migrated immediately tothe peach trees as soon as the young leaves sprouted out. They could not develop on theleaves of broad bean, cabbage and radish. The appearance of adult stage of each generation was as follows:The overwintering adults hid among several evergreen trees such as Juniperuschinensis var. Kaizuca Hort., J. chinensis L., Biota orientalis (Linn.)., Cryptomeria japo-nica D. Don., Pinus massoniana Lamb., Myrica rubra Sieb. et Zucc. It was found thatabout 30% of these adults survived even at a low temperature of --20℃ in late Feb-ruary. Chemical control experiments were carried out both in the laboratory and in theorchards. The results indicated that the malathion miscible oil (25%) at the dilution of1:1,000--2,000 was the most effective spraying formulation, which gave 100% mortalities4 hours after treatment, while 30% parathion and 50% ethion (1240) at the dilution of1:1,000 and 1:500 respectively also gave satisfactory control and exhibited comparativelylonger residual effects. The DDT miscible oil (25%) at the dilution of 1:250 was alsoeffective for controlling this species, which gave 100% mortalities 24 hours after spray-ing in the orchard, and showed the longest residual effect.

桃一点叶蝉在长江流域为桃的重要害虫,据在南京、徐州、洞庭东山等地调查,为害桃的叶蝉共有4种即:桃一点叶蝉Erythroneura sp.,小绿叶蝉Empoasca flavescens,大绿叶蝉Cicadella viridis及棉叶蝉Chlorita biguttula。以桃一点叶蝉为主。它的主要寄主是桃,其他尚有杏、李、中国樱桃、贴梗海棠、月季、苹果、梨等。桃一点叶蝉在南京一年发生四代,以第四代成虫在常绿树如龙柏、侧柏、柳杉、桧柏、马尾松、杨梅上越冬。至早春桃现蕾萌芽时,从越冬寄主上大部分直接迁飞到桃上,少量可到其他寄主上,4月以后都集中到桃上,直到晚秋开始作越冬之迁飞。至11月中下旬全部迁到常绿树上越冬。 室内药效测定结果:25%马拉松乳剂,30%E-605及25%DDT乳剂效果最好,41%敌百虫效果不好,效果最差的是10%γ666乳剂。两次田间防治试验结果与室内一致。在桃园内为避免经常使用DDT而引起螨类的大发生,可采用马拉松,E-605来代替或与DDT混合使用防治桃一点叶蝉及其他桃树害虫。

Recent works of many authors show that temperature has an important effect on themortality due to insecticides. But different effects have been reported in different cases.During 1959-1960, we had the occasion to carry out some experiments on the effect ofDDT, BHC and Dipterex applied to the hibernating larvae of the pine caterpillar, theresults of which may be summarized as follows: According to field observations, we may divide the larval hibernation into five suc-cessive periods during the winter: 1) Active...

Recent works of many authors show that temperature has an important effect on themortality due to insecticides. But different effects have been reported in different cases.During 1959-1960, we had the occasion to carry out some experiments on the effect ofDDT, BHC and Dipterex applied to the hibernating larvae of the pine caterpillar, theresults of which may be summarized as follows: According to field observations, we may divide the larval hibernation into five suc-cessive periods during the winter: 1) Active period before pre-hibernation; 2) Pre-hibernation period; 3) Hibernation period; 4) Post-hibernation period; and 5) Ac-tive period after post--hibernation. In the case of DDT, the finding in general is that there is a higher mortality at lowertemperature (between 10-20℃ mean daily temperature). But in the case of BHC andDipterex the mortality is increased at higher temperatures (when over 20℃). Theeffect is more evident in the latter case. The effects of insecticides are different at different periods of hibernating larvae. Incase of DDT the order is: Post-hibernation period > Pre-hibernation period > Hibernation period > Activeperiod before pre-hibernation > Active period after Post-hibernation ≥ Summer larvae(4-5th instars).

1959—1960年作者等在江西、湖南等地区配合大面积防治森林害虫之际,开展了DDT等化学药剂对于不同越冬时期的马尾松毛虫幼虫的毒效试验。据野外观察结果,将马尾松毛虫越冬幼虫划分为5个时期。即越冬前活动期、越冬前期、越冬期、越冬后期、越冬后活动期。试验证明:不同化学药剂对越冬松毛虫幼虫的毒效随着不同时期和温度条件而变化。就一般论:DDT的效果,在比较低温(日均温10—20℃)时特别显著;666及敌百虫的效果,在比较高温时(20℃以上)为显著。其中尤以敌百虫为更甚。DDT对不同时期幼虫的毒效大小为:越冬后期>越冬前期>越冬期>越冬前活动期>越冬后活动期≥夏季(4-5龄)幼虫;其中以越冬后期幼虫抵抗力最弱。从原则上论这是施药的最适宜时期,从25% DDT乳剂4,000倍稀释液在越冬后期(2,3月间)施用,毒效可达92%以上,用6,000倍稀释液亦达82%以上。如用γ6%可湿性666,800倍稀释液在越冬前、后期使用,毒效可达70-80%以上。50%敌百虫乳剂在温度20℃以上时(越冬前、后活动期)毒效显著增高。此时如用5,000-6,000倍稀释液喷洒,毒效可达70-80%左右。由此,作者认...

1959—1960年作者等在江西、湖南等地区配合大面积防治森林害虫之际,开展了DDT等化学药剂对于不同越冬时期的马尾松毛虫幼虫的毒效试验。据野外观察结果,将马尾松毛虫越冬幼虫划分为5个时期。即越冬前活动期、越冬前期、越冬期、越冬后期、越冬后活动期。试验证明:不同化学药剂对越冬松毛虫幼虫的毒效随着不同时期和温度条件而变化。就一般论:DDT的效果,在比较低温(日均温10—20℃)时特别显著;666及敌百虫的效果,在比较高温时(20℃以上)为显著。其中尤以敌百虫为更甚。DDT对不同时期幼虫的毒效大小为:越冬后期>越冬前期>越冬期>越冬前活动期>越冬后活动期≥夏季(4-5龄)幼虫;其中以越冬后期幼虫抵抗力最弱。从原则上论这是施药的最适宜时期,从25% DDT乳剂4,000倍稀释液在越冬后期(2,3月间)施用,毒效可达92%以上,用6,000倍稀释液亦达82%以上。如用γ6%可湿性666,800倍稀释液在越冬前、后期使用,毒效可达70-80%以上。50%敌百虫乳剂在温度20℃以上时(越冬前、后活动期)毒效显著增高。此时如用5,000-6,000倍稀释液喷洒,毒效可达70-80%左右。由此,作者认为:在长江以北,每年发生2代以下的松毛虫地区,可用DDT和666稀释液在越冬前、后期进行防治。长江以南,每年发生2代以上的马尾松毛虫地区,不但可用DDT、

The pine caterpillar is one of the most important pests of pine trees in China. Be-cause there are some disadvantages to apply chemical control of this pest, an urgentneed of using microbial methods as a supplementary measure is evident. The results ofthe preliminary test are very promising. The results are as follows: 1. The application of B. thuringiensis var. thuringiensis to control the pine cater-pillar seems to be very effective. In future it may develop into a new and powerfulweapon in pest control work....

The pine caterpillar is one of the most important pests of pine trees in China. Be-cause there are some disadvantages to apply chemical control of this pest, an urgentneed of using microbial methods as a supplementary measure is evident. The results ofthe preliminary test are very promising. The results are as follows: 1. The application of B. thuringiensis var. thuringiensis to control the pine cater-pillar seems to be very effective. In future it may develop into a new and powerfulweapon in pest control work. 2. The concentrations of the bacterial suspensions should be raised with the in-crease of larval instars. The range is approximately between 15×10~6--2.7×10~8 sporesper c.c. 3. High temperature resulted in a quick infection and death of the larvae. There-fore, the application of this method in June, July and August will give better results,though in cold and wet seasons, for example in March and April in central China, thecontrol is also effective. 4. The applications of B. thuringiensis var. thuringiensis with very dilute concentra-tions of chemical insecticides, such as 666, DDT and Diptrex, will give quicker andbetter results. This is a promising method. Dusting is valuelessly.

本文系应用苏云金杆菌(Bacillus thuringiensis var.thuringiensis)粉制剂防治马尾松毛虫(Dendrolimus Punctatus Walk.)的试验结果,试验表明此菌的致病力高,防治效果好,大有应用的前途。应用时,菌剂的浓度应随幼虫龄期的增加而递增,含孢子数的有效幅度为1,500-27,000万/c.c.死亡率可达90-100%。此菌如与稀浓度化学药剂(如666、DDT、敌百虫)混合使用,防治抵抗力较强的4-7龄幼虫,效果更好。

 
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