6种防霉剂对毛竹重组材的防霉效果比较     

胡迪  蒋身学 《林产工业》2012,39(5):24-26

以毛竹加缝竹篾为原料压制竹重组材,采用6种防霉剂分别对竹篾和板材试件作浸渍或涂布处理。经过1个月的防霉处理后,比较不同防霉剂、不同处理方法其防治效力的优劣,筛选出适用于毛竹重组材的2种低毒、高效防霉剂及其最佳处理方法。  相似文献   

不同氮磷钾配比对仙客来生长的影响     

刘迪  毛洪玉 《北方园艺》2010,(23):109-111

对仙客来无土栽培营养液中N、P、K元素采用三因素二次D-饱和最优设计,探讨不同浓度氮磷钾对仙客来生长发育的影响,对仙客来的根长、根体积、球茎直径、花朵数、花瓣长、可溶性糖含量、MDA含量、蛋白质含量、叶绿素含量进行分析。结果表明:经方差分析和主成分分析得出,无土栽培仙客来氮、磷、钾最优组合方案为:86.6~263.4、60~100和250~400 mg/L,即氮:磷:钾为3∶1∶6.5。  相似文献   

Establishment and characterization of fin cell lines from diploid,triploid, and tetraploid oriental weatherfish (Misgurnus anguillicaudatus)     

Xia Li  Chen Ma  Yan-Jie Qin  Ya-Juan Li  Di Wu  Li-Wen Bai  Ai-Jun Pei 《Fish physiology and biochemistry》2015,41(3):661-672

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A simplified method for measuring dilute emulsion stability     

Yiyan Wang  Shaozhuang Bian  Di Wu 《Pest management science》1995,44(2):201-203

A simple and rapid method for the assessment of the stability of diluted pesticide emulsifiable concentrates has been developed for use in China. It gives results comparable to those obtained with FAO and WHO methods. The importance of some other physical characteristics such as contact angle, surface tension and wetted area in pesticide application are also discussed.  相似文献   

Rapid communication: nucleotide sequence of chamois, alpine ibex, and red deer tRNA(Lys) and ATPase8 mitochondrial genes     

Saulle E  Di Pasquale S  Tartaglia M 《Journal of animal science》1999,77(12):3398-3399

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The identification of Mortierella wolfii isolated from cases of abortion and pneumonia in cattle and a search for its infection source     

M E Di Menna  M E Carter  D O Cordes 《Research in veterinary science》1972,13(5):439-442

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Fungicidal activity and chemical constitution: XVII.—Activity of various 4-(1-substituted n-alkyl)-2,6-dinitrophenols and esters against apple powdery mildew     

Diana M. Fieldgate  Carolyn S. James  R. J. W. Byrde  D. Woodcock 《Pest management science》1970,1(5):183-188

Members of series of 4-(cyclobutylalkyl, cyclohexylalkyl and benzylalkyl)-2,6-dinitrophenols were tested in a glasshouse against apple powdery mildew caused by Podosphaera leucotricha. Three series involving a cyclohexyl substituent separated from the phenolic nucleus by one, two or three methylene groups were of the same order of activity, but replacement of this substituent by a phenyl group in one case, resulted in a marked decrease in activity. Of a number of esters tested, none was significantly more active than the corresponding phenol.  相似文献   

Detection of foot-and-mouth disease virus from culture and clinical samples by reverse transcription-PCR coupled to restriction enzyme and sequence analysis   总被引：4，自引：0，他引：4  

Sáiz M  De La Morena DB  Blanco E  Núñez JI  Fernández R  Sánchez-Vizcaíno JM 《Veterinary research》2003,34(1):105-117

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Digital Image Analysis of Internal Light Spots of Appressoria of Colletotrichum acutatum     

Diéguez-Uribeondo J  Förster H  Adaskaveg JE 《Phytopathology》2003,93(8):923-930

ABSTRACT The initial penetration process of appressoria of Colletotrichum acutatum on almond leaves was studied using digital image analysis of light micrographs and scanning electron microscopy. For image analysis, a series of sequential, partially focused digital micrographs of appressoria was analyzed to generate a single, completely focused montage image with a continuous in-focus depth of field. In studies on the development of the internal light spot (ILS), we observed that 50.4% of the appressoria formed an ILS after leaves were inoculated and incubated for 12 h at 20 degrees C, and that this increased to 95.8% after 24 h. Comparative image analyses of appressoria with and without ILSs using depth relief mapping and line profile software options showed that the ILS had a depth relief that was below that of the leaf surface. Depth relief analysis in the ILS region during incubation revealed an increase in depth in this area of up to 1.8 mum in some of the appressoria. A comparative morphological study of the ILS in montage images and the penetration pore of appressoria in scanning electron micrographs showed similar shapes and dimensions of the two structures in the appressorium. Light micrographs of histological sections confirmed fungal penetration and internal vesicle formation in almond leaves within 36 h after inoculation and incubation at 20 degrees C. This study represents the first direct evidence that the ILS in appressoria corresponds to the penetration pore and the developing penetration peg using a rapid, digital image analysis technique.  相似文献   

Effect of induced unilateral synovitis of distal intertarsal and tarsometatarsal joints on sagittal plane kinematics and kinetics of trotting horses     

Khumsap S  Lanovaz JL  Rosenstein DS  Byron C  Clayton HM 《American journal of veterinary research》2003,64(12):1491-1495

OBJECTIVE: To study the effect of unilateral synovitis in the distal intertarsal and tarsometatarsal joints on locomotion, including the compensating effects within and between limbs. ANIMALS: 4 clinically normal horses. PROCEDURE: Gait analyses including kinematics, force plate, and inverse dynamic analysis were performed at the trot before lameness, after which synovitis was induced by injecting endotoxin into the right distal intertarsal and tarsometatarsal joints. Gait analyses were repeated 24 to 30 hours later during lameness. Differences between the stride variables during the 2 conditions (lame and sound) were identified. RESULTS: Tarsal joint range of motion, peak vertical force, and vertical impulse were decreased during lameness. Mechanical deficits included a decrease in negative work performed by the tarsal extensors during the early stance phase and a decrease in positive work by the tarsal extensors during push off. No compensatory changes in work were performed by other joints within the lame hind limb during the stance phase. Vertical impulse in the diagonal forelimb decreased, but there were no significant changes in forces or impulses in the ipsilateral forelimb or contralateral hind limb. CONCLUSION AND CLINICAL RELEVANCE: Results indicate that horses are able to manage mild, unilateral hind limb lameness by reducing the airborne phase of the stride rather than by increased loading of the compensating limbs.  相似文献