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1.
宁陕县枯叶蛾科昆虫共有5亚科23属49种。云纹枯叶亚科和斜纹枯叶亚科是宁陕县枯叶科昆虫的优势类群。古北界14种,占该县总种数的28.57%。东洋界19种,占该县总种数的38.78%。古北—东洋共有种12种,占该县总种数的24.49%。宁陕县枯叶科昆虫东洋界组分占优势,古北界和东洋-古北共有种类次之。东洋界、古北界和古北-东洋界共有种三大类群是宁陕县枯叶科主要组成成分。 相似文献
2.
为查清我省天牛科昆虫种类、分布、为害,以利于防治、科研和教学工作的开展,几年来笔者陆续进行了天牛科昆虫的整理和鉴定工作。已发表三份名录,包括锯天牛亚科23种,幽天牛亚科9种,花天牛亚科6种,天牛亚科97种,瘦天牛亚科2种。本文仍为天牛亚科,共记载41属,96种。其中中国新记录5种,云南新记录25种。 相似文献
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汉阴县天蛾科昆虫共有5亚科27属52种。云纹天蛾亚科、面形天蛾亚科和斜纹天蛾亚科是汉阴县天蛾科昆虫区系主要组成者和优势类群。古北界15种,占该县总种数的28.85%。东洋界19种,占该县总种数的36.54%。古北—东洋共有种10种,占该县总种数的19.23%。汉阴县天蛾科昆虫东洋界组分占优势。东洋界、古北界和古北-东洋界共有种三大类群是汉阴县天蛾科主要组成成分。这样的区系组成与汉阴所处的特殊地理位置——秦巴山区密切相关。 相似文献
5.
《林业科学》2016,(2)
【目的】通过高频次的调查采集,比较不同时间天牛科成虫物种组成的差异,在科学描述各种类天牛成虫活跃期时间动态规律的同时,对天牛成虫活跃期进行精确比较,为害虫的种群监测和生物指示种的利用提供参考。【方法】2012—2013年在张广才岭南段蛟河林业实验区管理局阔叶红松林内,利用拦截诱捕器系统调查天牛科昆虫物种多样性的时间动态,并对11个天牛成虫标本回收时间点进行数量化系统分析。【结果】共采集到天牛科昆虫成虫标本1 252号,隶属7亚科41属64种,其中,稀有种44种,占物种总数的68.75%。该区多次普查未记录到的棍腿纹虎天牛被采集到的频度很高。不同时间天牛科昆虫物种数量和个体数量有显著差异,其成虫高峰期出现在6月下旬至7月中旬,然后逐渐下降,9月上旬物种数和个体数量最低;6月与7月天牛科昆虫的相似性最高,达到中等相似水平。锯天牛亚科(220±10)和瘦天牛亚科(220±10)成虫出现的平均顺序日期显著高于其他亚科;天牛亚科(187±25)、沟胫天牛亚科(187±24)、花天牛亚科(183±25)、锥天牛亚科(177±15)和膜花天牛亚科(175±13)成虫出现的平均顺序日期无显著差异。【结论】在顺序日期170、180和190时,天牛群落羽化或活跃达到高峰,同时,这个时间也是植物开花的盛期,部分具有访花行为的天牛成虫大量出来活动,天牛群落表现出较高物种多样性。本研究天牛科昆虫成虫活跃时间分布格局与Hanks等研究加拿大天牛科昆虫成虫的分布时间相似,但由于两地环境条件以及天牛区系等不同,本研究的高峰时间有所提前。在全部天牛种类中,不同天牛种类成虫活跃期开始时间、活跃期持续时间等均不相同,反映出天牛成虫羽化时间或活跃期的多样性。有13种天牛成虫只在一次调查中被采集到,说明这些种类成虫活跃期相对较短,对环境变化比较敏感。对优势天牛种类成虫活跃的高峰期应该给予更多的关注,尤其对一些具有潜在成灾风险的种类进行种群监测具有重要的价值。 相似文献
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天牛科昆虫是危害严重的林业害虫,给林业生产造成重大损失。昆虫信息化合物的鉴定及应用,在害虫综合治理(IPM)中发挥着重要的作用。到目前为止,已从100多种天牛科物种中鉴定出信息化合物质,天牛亚科(Cerambycinae)、沟胫天牛亚科(Lamiinae)和椎天牛亚科(Spondylidinae)鉴定出雄性天牛的聚集信息素组分,花天牛亚科(Lepturinae)和锯天牛亚科(Prioninae)物种主要是鉴定出雌性天牛释放性的性信息素组分。这些信息素组分在不同亚科、不同属和种之间重叠率高,同一种组分可以在多种天牛物种中发挥作用,调节昆虫行为活动的信息化学物质在害虫治理中具有应用潜力和广阔的前景。对国内外已研究的天牛科信息素组分进行系统分析,可为今后鉴定新的天牛科信息素组分提供依据,加快我国天牛科信息素组分鉴定和应用进程。 相似文献
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幽天牛族是一类重要的林业害虫,我国已记载昆虫4属26种.幽天牛族昆虫的寄主多为针叶类裸子植物,已记载的寄主植物有7科15属36种,其中以松科松属的种类最多,占所有记录到种的寄主植物的30.56％,而且危害松属的幽天牛数量也最多.对我国目前分布的26种幽天牛族昆虫进行区系分析,发现幽天牛族昆虫以古北区成分为主,这可能与古北区针叶植物较多有一定关系.我国的地理环境及生态植被,均可以满足幽天牛族非中国种的分布及寄主需求,非常适宜幽天牛族非中国种的生存和繁衍,因此应该提高警惕,严防国外种类传入我国,以保护我国树木安全. 相似文献
9.
为了促进陕西板栗产业的健康发展,对陕西省秦巴山区板栗害虫的种类及其区系组成进行了连续2 a的调查。秦巴山区板栗害虫有6目49科143属184种。食叶害虫25科85属109种,分别占总科数的51.02%、总属数的59.44%、总种数的59.24%;由古北界、东洋界以及古北-东洋共有种类组成优势类群,其种数分别占该类害虫种数的31.19%、25.69%、33.03%。枝梢害虫15科25属27种,分别占总科数的30.61%、总属数的17.48%、总种数的14.67%;东洋界种类和其它多界种类优势类群,其种数分别占该类害虫种数的37.04%、29.63%。蛀干害虫5科22属32种,分别占总科数的14.28%、总属数的15.28%、总种数的17.39%;由东洋界种类和古北-东洋共有种类构成优势类群,其种数分别占该类害虫种数的31.25%、43.75%。种实害虫5科8属11种,分别占总科数的10.20%、总属数的5.59%、总种数的5.98%;由古北界种类和古北-东洋共有种类组成优势类群,其种数分别占该类害虫种数的27.27%、54.55%。苗木害虫有3科3属5种,分别占总科数的6.12%、总属数的2.10%、总种数的2.72%;由古北界种类和其它多界种类组成优势类群,其种数分别占该类昆虫种数的40.0%、40.0%。在这些害虫中,古北界46种,占该区板栗害虫总种数的25.00%;东洋界47种,占板栗害虫总种数的25.54%;古北-东洋界共有种64种,占板栗害虫总种数的34.78%;其它界种类27种,占该区板栗害虫总种数的14.67%。秦巴山区板栗害虫以古北界、东洋界、东洋-古北共有种类为优势种类。符合陕西板栗分布于古北、东洋两界过渡地带的昆虫区系的组成特点。 相似文献
10.
采用固定样地和样带取样相结合的方法，对分布于长白山北坡、西坡和南坡阔叶红松林带、暗针叶林带、亚高山岳桦林带和高山苔原带的天牛种类组成进行连续8年的系统调查。结果表明：长白山自然保护区共有天牛科昆虫116种，隶属6亚科71属。其中：花天牛亚科51种，占43.97%；沟胫天牛亚科35种，占30.17%；天牛亚科23种，占19.83%；椎天牛亚科4种，占3.45%；膜花天牛亚科2种，占1.72%；锯天牛亚科1种，占0.86%。从低海拔的阔叶红松林到高海拔的高山苔原带，天牛物种丰富度逐渐减少。阔叶红松林带有天牛105种，单带种44种，没有优势种；针叶林带有天牛73种，单带种8种，优势种2种；岳桦林带有天牛29种，单带种1种，优势种4种；高山苔原带有天牛18种，没有单带种，优势种2种。天牛成虫活动期为5-9月，以6，7月份种类最丰富。长白山天牛物种北坡最多，西坡次之，南坡最少。从低海拔的阔叶红松林到高海拔的高山苔原带，古北区系成分呈增加的趋势，跨古北、东洋2区系和东亚区系成分呈逐渐减少的趋势。长白山天牛科昆虫区系结构主要以欧洲-西伯利亚区系成分为主，东亚区系成分为辅。根据长白山花天牛亚科物种所占比例最大推测，长白山是花天牛的起源中心之一。 相似文献
11.
A dramatic decline in forest cover in eastern Africa along with a growing population means that timber and poles for building
and fuelwood are in short supply. To overcome this shortage, the region is increasingly turning to eucalyptus. But eucalyptus
raises environmental concerns of its own. Fears that it will deplete water supply, affect wildlife and reduce associated crop
yields have caused many countries in the region to discourage farmers from planting this exotic. This paper is part of a series
of investigations on the growth and water use efficiency of faster growing eucalyptus hybrids, which was introduced from South
Africa to Kenya. The hypothesis is that the new hybrids are more efficient in using water and more suitable for the semi-arid
tropics than existing eucalyptus and two popular agroforestry species. Gas exchange characteristics of juvenile Eucalyptus grandis (W. Hill ex Maiden), two eucalyptus hybrids (E. grandis × Eucalyptus camaldulensis Dehnh.), Grevillea robusta (A. Cunn) and Cordia africana (Lam) was studied under field and pot conditions using an infrared gas analyzer was used to measure photosynthetic active
radiation (PAR), net photosynthetic rate (A), stomatal conductance (g
s) and transpiration rate (E) at CO2 concentrations of 360 μmol mol−1 and ambient humidity and temperature. A, E and g
s varied between species, being highest in eucalyptus hybrid GC 15 (24.6 μmol m−2 s−1) compared to eucalyptus hybrid GC 584 (21.0 μmol m−2 s−1), E. grandis (19.2 μmol m−2 s−1), C. africana (17.7 μmol m−2 s−1) and G. robusta (11.1 μmol m−2 s−1). C. africana exhibited high E values (7.0 mmol m−2 s−1) at optimal soil moisture contents than G. robusta (3.9 mmol m−2 s−1) and eucalyptus (5.3 mmol m−2 s−1) in field experiment and G. robusta (3.2 mmol m−2 s−1) and eucalyptus (4.2 mmol m−2 s−1) in pot-grown trees. At very low soil moisture content, extremely small g
s values were recorded in GC 15 and E. grandis (8 mmol m−2 s−1) and G. robusta (14 mmol m−2 s−1) compared to GC 584 (46.9 mmol m−2 s−1) and C. africana (90.0 mmol m−2 s−1) indicating strong stomatal control by the species. Instantaneous water use efficiency ranged between 3 and 5 μmol mmol−1 and generally decreased with decline in soil moisture in pot-grown trees but increased with declining soil moisture in field-grown
trees. 相似文献
12.
Veikko Kanervo 《Journal of pest science》1960,33(1):1-5
Zusammenfassung Einige der wichtigsten gegenwärtigen Probleme hinsichtlich der landwirtschaftlichen Schädlinge in Finnland sind folgende:Bei Getreide die Schäden durchCalligypona pellucida am Hafer sowie die Schäden durch die Fritfliege(Oscinella frit) an Saat von Winter- und Sommergetreide, die durch Blasenfüßer(Thysanoptera) u. a. Arten verursachte Weißährigkeit und Schmachtkörnigkeit, deren Bekämpfung noch nicht befriedigend entschieden ist. — Beim RotkleePhytonomus nigrirostris, Apion apricans undA. assimile, Sitona spp. undDitylenchus dipsaci, deren Biologie und Bekämpfung weiterhin fortgesetzt werden, — Bei ÖlpflanzenCeuthorrhynchus assimilis undC. quadridens sowieDasyneura brassicae, deren Bekä mpfung zu ermitteln ist. — Bei Zuckerrübe sowie einigen anderen Kulturpflanzen Bedeutung und Bekä mpfung vonLygus-Arten (besondersL. rugulipennis undL. pratensis). Bekämpfung der Rübenfliege(Pegomyia hyoscyami) bei Zuckerrübenkulturen. — Bei den Wurzelschädlingen von Gemüse und Hackfrüchten Klären von Biologie und Bekämpfung der Kohlfliegen (Hylemyia brassicae undH. floralis), der Fliegenschädlinge von Zwiebeln (Hylemyia antiqua, Eumerus tuberculatus undE. strigatus) und der Möhrenfliege. — Die Wirkung der Spritzungen in Obstgärten auf die wichtigsten Schä dlinge(Metatetranychus pilosus, Doralina pomi, Psylla mali, Carpocapsa pomonella, Argyresthia conjugella) und ihre wirksamsten Feinde.— In Beerengärten bei den ArtenTarsonemus fragariae, Eriophyes ribis undPachynematus pumilio sowie in Obstgärten bei der ArtAnisandrus dispar Intensivierung der Bekä mpfung. — Älchen(Anguillulidae), besondersdas Kleeälchen und Klärung von Lebensbedingungen und Bekämpfung desKartoffelälchens. — Bedeutung und Bekämpfung der Wühlmäuse (besondersMicrotus agrestis, M. arvalis undArvicola terrestris). — Untersuchung der Bedeutung von virusverbreitenden Insektenarten. — Erforschung der Nachteile von Bekämpfungsmitteln für die Pflanzen. 相似文献
13.
选取重庆缙云山的针阔混交林、常绿阔叶林、毛竹林、灌木林4种典型林分,观测酸性降水过程中林外雨、穿透雨及干流等林内水分转换分量中的主要离子含量变化,分析林分冠层对雨水化学组成的影响,结果表明:(1)降雨中的离子当量浓度大小依次是SO42-＞Ca2+＞ NH4+＞Mg2+＞K+＞Na+＞NO3-;(2)降雨经过林冠层后pH值降低,干流的酸化程度增加最大;(3)降雨经林冠层后离子浓度明显增加(除灌木林),穿透雨中通量增加最大的阴离子和阳离子分别为SO42-(2.19×103～6.47×103 eq·hm-2)和Ca2+(1.41×103～3.39×103 eq-hm-2),离子来源主要为大气沉降和植物分泌物或淋出;(4)同一离子在不同林分的干流和穿透雨中的通量变化不同,反映出不同林分冠层的离子交换性差异.在针阔混交林中,林下降雨净淋溶量大小顺序为SO42-＞Ca2+＞ NO3-＞K+＞NH4+＞Mg2+＞ Na+;常绿阔叶林为SO42-＞ Ca2+＞ K+＞NO3-＞ NH4+＞ Mg2+ ＞Na+;毛竹林为Ca2+＞ SO42-＞ K+＞NO3-＞ NH4+＞Na+＞Mg2+;灌木林为Ca2+＞ NO3-＞ K+＞ Na+＞Mg2+＞ NH4+＞ SO42-. 相似文献
14.
１９９８年４月至１９９９年３月对广州市白云山马尾松林和常绿阔叶林、广州市龙眼洞马尾松林两试验点进行了酸雨的监测,并测定和分析了林内穿透雨物理量及化学量,旨在探讨酸雨对不同森林冠层养分淋溶规律的影响。结果表明：（１）广州市酸雨占次数的７９．７％或占降雨量的９５．１％。（２）酸雨通过林冠层后,ｐＨ值明显增加。（３）在马尾松林和常绿阔叶林中,某些单次降雨出现ＳＯ４＾２－、ＮＯ３＾－、ＮＨ４＾＋Ａｌ＾３＋、Ｎａ＾＋的负淋溶现象,说明森林对这些离子（特别是ＮＯ３＾－、Ａａ＾３＋）具有吸收作用;阔叶林全年的ＮＯ３＾－和Ａｌ＾３＋净淋溶为负值,说明阔叶林比马尾松林对这两种离子具有更强的吸收能力。（４）雨水酸度增加（即ｐＨ值减小）,明显提高阳离子Ｃａ＾２＋、Ｍｇ＾２＋、Ｋ＾＋和Ｎａ＾＋冠层淋溶面分率。（５）ＮＨ４＾＋、ＳＯ４＾ 相似文献
15.
Tomohito Sano Takashi Hirano Naishen Liang Ryuichi Hirata Yasumi Fujinuma 《Forest Ecology and Management》2010
A typhoon event catastrophically destroyed a 45-year-old Japanese larch plantation in southern Hokkaido, northern Japan in September 2004, and about 90% of trees were blown down. Vegetation was measured to investigate its regeneration process and CO2 flux, or net ecosystem production (NEP), was measured in 2006–2008 using an automated chamber system to investigate the effects of typhoon disturbance on the ecosystem carbon balance. Annual maximum aboveground biomass (AGB) increased from 2.7 Mg ha−1 in 2006 to 4.0 Mg ha−1 in 2007, whereas no change occurred in annual maximum leaf area index (LAI), which was 3.7 m2 m−2 in 2006 and 3.9 m2 m−2 in 2007. Red raspberry (Rubus idaeus) had become dominant within 2 years after the typhoon disturbance, and came to account for about 60% and 50% of AGB and LAI, respectively. In comparison with CO2 fluxes measured by the eddy covariance technique in 2001–2003, for 4.5 months during the growing season, the sum of gross primary production (GPP) decreased on average by 739 gC m−2 (64%) after the disturbance, whereas ecosystem respiration (RE) decreased by 501 gC m−2 (51%). As a result, NEP decreased from 159 ± 57 gC m−2 to −80 ± 30 gC m−2, which shows that the ecosystem shifted from a carbon sink to a source. Seasonal variation in RE was strongly correlated to soil temperature. The interannual variation in the seasonal trend of RE was small. Light-saturated GPP (Pmax) decreased from 30–45 μmol m−2 s−1 to 8–12 μmol m−2 s−1 during the summer season through the disturbance because of large reduction in LAI. 相似文献
16.
Nitrogen leaching in response to increased nitrogen inputs in subtropical monsoon forests in southern China 总被引：1，自引：0，他引：1
Dissolved inorganic nitrogen (DIN) (as ammonium nitrate) was applied monthly onto the forest floor of one old-growth forest (>400 years old, at levels of 50, 100 and 150 kg N ha−1 yr−1) and two young forests (both about 70 years old, at levels of 50 and 100 kg N ha−1 yr−1) over 3 years (2004–2006), to investigate how nitrogen (N) input influenced N leaching output, and if there were differences in N retention between the old-growth and the young forests in the subtropical monsoon region of southern China. The ambient throughfall inputs were 23–27 kg N ha−1 yr−1 in the young forests and 29–35 kg N ha−1 yr−1 in the old-growth forest. In the control plots without experimental N addition, a net N retention was observed in the young forests (on average 6–11 kg N ha−1 yr−1), but a net N loss occurred in the old-growth forest (−13 kg N ha−1 yr−1). Experimental N addition immediately increased DIN leaching in all three forests, with 25–66% of added N leached over the 3-year experiment. At the lowest level of N addition (50 kg N ha−1 yr−1), the percentage N loss was higher in the old-growth forest (66% of added N) than in the two young forests (38% and 26%). However, at higher levels of N addition (100 and 150 kg N ha−1 yr−1), the old-growth forest exhibited similar N losses (25–43%) to those in the young forests (28–43%). These results indicate that N retention is largely determined by the forest successional stages and the levels of N addition. Compared to most temperate forests studied in Europe and North America, N leaching loss in these seasonal monsoon subtropical forests occurred mainly in the rainy growing season, with measured N loss in leaching substantially higher under both ambient deposition and experimental N additions. 相似文献
17.
《Fitoterapia》2014
Five new ursane-type triterpenoidal saponins (1–5), together with five known ones (6–10), were isolated from the EtOH extract of the roots of Ilex cornuta. The structures of saponins 1–5 were elucidated as 19α-hydroxyurs-12-en-28-oic acid 3β-O-β-D-glucuronopyranoside (1), 19α-hydroxyurs-12-en-28-oic acid 3β-O-β-D-glucuronopyranoside-6-O-ethyl ester (2), 19α-hydroxyurs-12-en-28-oic acid 3β-O-α-L-arabinopyranosyl-(1 → 2)-β-D-glucuronopyranoside (3), 3β-O-[α-L-arabinopyranosyl-(1 → 2)-β-D-glucuronopyranosyl]-19α-hydroxyurs-12-en-28-oic acid 28-O-β-D-glucopyranosyl ester (4) and 3β-O-[α-L-arabinopyranosyl-(1 → 2)-β-D-glucuronopyranoside-6-O-methyl ester]-19α-hydroxyurs-12-en-28-oic acid 28-O-β-D-glucopyranosyl ester (5), on the basis of spectroscopic analyses (IR, ESI-MS, HR-ESI-MS, 1D and 2D NMR) and chemical reactions. Protective effects of compounds 1–10 against H2O2-induced H9c2 cardiomyocyte injury were tested. Compounds 1–5, 7, and 10 showed cell-protective effects. Among them compound 5 exhibited the highest activity. No significant DPPH radical scavenging activity was observed for compounds 1–10. 相似文献
18.
Canker disease of willow and poplar caused by Cryptosphaeria pullmanensis recorded in China 
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下载免费PDF全文 A new canker disease of Salix alba and Populus alba has been observed in Xinjiang, China. Black circular spots on dead branches and stems are the symptoms of the disease. Sixty‐seven isolates recovered from Salix matsudana, S. alba and Populus alba were identified as Cryptosphaeria pullmanensis based on morphological features and multigene phylogeny. Pathogenicity tests were performed on S. alba and P. alba stems using the C. pullmanensis isolates. Cankers on and Cryptosphaeria pullmanensis of C. pullmanensis from the stems fulfilled Koch's postulates and confirmed C. pullmanensis as the causal agent of the canker disease. C. pullmanensis is characterized by its yellow stromatic tissue surrounded by a black conceptacle with regularly arranged multiple locules sharing common walls and hyaline, allantoid, aseptate conidia (mean size 7.42 × 1.72 μm). This is the first report of C. pullmanensis causing Cryptosphaeria canker in China, and S. alba and P. alba are new host records for C. pullmanensis. 相似文献
19.
This study was conducted to determine carbon (C) dynamics following forest tending works (FTW) which are one of the most important forest management activities conducted by Korean forest police and managers. We measured organic C storage (above- and below-ground biomass C, forest floor C, and soil C at 50 cm depth), soil environmental factors (soil CO2 efflux, soil temperature, soil water content, soil pH, and soil organic C concentration), and organic C input and output (litterfall and litter decomposition rates) for one year in FTW and non-FTW (control) stands of approximately 40-year-old red pine (Pinus densiflora S. et Z.) forests in the Hwangmaesan Soopkakkugi model forest in Sancheonggun, Gyeongsangnam-do, Korea. This forest was thinned in 2005 as a representative FTW practice. The total C stored in tree biomass was significantly lower (P < 0.05) in the FTW stand (40.17 Mg C ha−1) than in the control stand (64.52 Mg C ha−1). However, C storage of forest floor and soil layers measured at four different depths was not changed by FTW, except for that at the surface soil depth (0–10 cm). The organic C input due to litterfall and output due to needle litter decomposition were both significantly lower in the FTW stand than in the control stand (2.02 Mg C ha−1 year−1 vs. 2.80 Mg C ha−1 year−1 and 308 g C kg−1 year−1 vs. 364 g C kg−1 year−1, respectively, both P < 0.05). Soil environmental factors were significantly affected (P < 0.05) by FTW, except for soil CO2 efflux rates and organic C concentration at soil depth of 0–20 cm. The mean annual soil CO2 efflux rates were the same in the FTW (0.24 g CO2 m−2 h−1) and control (0.24 g CO2 m−2 h−1) stands despite monthly variations of soil CO2 efflux over the one-year study period. The mean soil organic C concentration at a soil depth of 0–20 cm was lower in the FTW stand (81.3 g kg−1) than in the control stand (86.4 g kg−1) but the difference was not significant (P > 0.05). In contrast, the mean soil temperature was significantly higher, the mean soil water content was significantly lower, and the soil pH was significantly higher in the FTW stand than in the control stand (10.34 °C vs. 8.98 °C, 48.2% vs. 56.4%, and pH 4.83 vs. pH 4.60, respectively, all P < 0.05). These results indicated that FTW can influence tree biomass C dynamics, organic C input and output, and soil environmental factors such as soil temperature, soil water content and soil pH, while soil C dynamics such as soil CO2 efflux rates and soil organic C concentration were little affected by FTW in a red pine stand. 相似文献
20.
Zusammenfassung Es konnten 132Bacillus-Stämme isoliert und gegenüber7 Rhizoctonia-solani- und 6Pythium-Stämmen auf Antagonismusin vitro untersucht werden. Die gefundenen Antagonisten hemmten die Pilzisolate unterschiedlich stark, so daß Gemische von Antagonisten für die Praxis zu empfehlen sind.
Mit 4 Abbildungen und einer Tabelle 相似文献
Antagonismin vitro ofBacillus spp. againstRhizoctonia solani andPythium spp.
There were 132Bacillus-strains isolated and tested for antagonism against 7 strains ofRhizoctonia solani and 6 strains ofPythium spp. The isolated antagonists didn't show a uniform effect against the tested strains ofRhizoctonia solani andPythium spp. For an application in practice it will be better to use a mixture of antagonists.
Mit 4 Abbildungen und einer Tabelle 相似文献