查询词典 needle blight

Wilcox M D Genetic variation and inheritance of resistance to Dothistroma needle blight in Pinus radiata New Zealand Journal of Forestry Science , 1982,1

周志春 马尾松生长和材性的地理遗传变异及最优种源区的划定林业科学研究， 1993，5

One example is the needle blight.

针叶萎凋病就是一例。

Bacterial needle blight of Chinese Fir was one of the main diseases in Chinese fir forests,which was caused by Pseudomonas syringae pv.

杉木细菌性叶枯病是杉木的主要病害之一，由丁香假单胞杆菌杉木致病变种Pseudomonas syringae pv。

The studies biological characteristics of Pestalotia funerea and its pathogenic toxin have important theoretical and practical significances to further explore pathogenic mechanism of this fungus,the occurrence and epidemical law and control method of pine needle blight.

开展枯斑盘多毛孢菌生物学特性及致病毒素的研究对深入探索松赤枯病的发生发展规律、发病机理、防治方法有重要的理论和实践意义。

The compatibility of both Gvirens and B.firmus was researched. The fermentation filtrate of Gvirens , under the concentration of 70%, had not distinct inhibitory activity to B.firmus, the biomass of B.firmus would decrease with above the 70% filtrate of Gvirens, but the fermentation filtrate of B.firmus had not inhibitive role to Gvirens. 7, The cooperation control of both Gvirens and B.firm to the pine needle blight was explored:(1) Pathogen inoculation happened prior to the bio-control treatment for 7 days, however, the disease index and control effect had not distinct differences in any treatments even if combination of the two antagonists, but the susceptibility for different kind of pine were different.(2)when antagonist and pathogen were inoculated at the same time, some control effect to the pine needle blight, including certain extent cooperation control of both Gvirens and B.firm were proved, but it wasn't distinct when two antagonists used separately, and the change of the antagonist concentration had little effect to the control effect.

G.virens与B.firmus对松赤枯病的协同控制显示：(1)预先接种病菌后(7天)再进行生物防治处理，不管那种情况，感病指数和防治效果在处理间差异不明显，浓度影响无显著差异，即使是两种生防制剂联合作用也未显著提高其防效，但不同树种间的感病性有明显差异；(2)领抗菌与病原菌同时接种，对松赤枯病有一定防治效果，两菌联合有一定的协同作用，两菌分别单独施用防效差异不显著，浓度变化对防效影响不大；(3)预先接种颇抗菌能显著提高防治效果，两菌联合处理防效更优，感病树种的感病指数可降至13一15，抗病树种的感病指数可控制在3%左右；在同一浓度下B.f1'r功US、叹叮厂即s间无显著差异，在同一领抗菌下，浓度愈高，防效愈高：松，(4)三种生防接种方式的平均效果分析表明，叹F行ens最高平均防效49.5%黑 B。

On the basis of ecologic balance, developing the complex biological preparation as a goal, we first explored two compatibly antagonists to control the leaf disease of forest plant and hoped this two antagonistic fungi could play a cooperative role in controlling the pine needle blight. The main research results were as follows: 1 , The dual test showed the two antagonistic fungi(Gliocladiutm virens ,Bacillus firmus)had some differences to Pestalotia funerea in the inhibition mode. The role of G virens to the P.funerea, mainly displayed the competition in the nutrition and space, but the B. firmus had the distinct inhibition zone to the P.

本研究以生态平衡为理论基础，开发复合生物制剂为目标，首次将两种亲和拮抗菌用于森林植物叶部病害，以期两种复合拮抗菌在松属植物赤枯病防治中发挥协同作用，其主要研究结果如下： 1、对峙培养显示两种颉抗菌(Gliocladium virens、Bacillus firmus)对赤枯病菌的抗生方式有一些差异。G.virens对P.funerea的作用，主要表现为营养与空间上的竞争，无抑菌圈；而B.firmus对P.funerea有明显的抑菌圈(平均6mm)，对峙培养4-5d后菌丝逐稀疏、干枯、变黄。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了