研究了纹霉清及其复配剂防治水稻纹枯病的防治效果。
The control effect of Wengmeiqing (validamycin) and its mixture on rice sheath blight disease was tested in field.
在小区试验中a30菌液对水稻纹枯病也表现出了较好的防治效果。
A30 culture showed good control efficiency to rice sheath blight in the field.
由于缺乏理想的抗源、有效的鉴定方法，致使水稻纹枯病抗性遗传研究相对滞后。
Genetic studies on rice resistance to sheath blight were slow in that ideal resistant resources and effective method to identify resistance to rice sheath blight were short.
通过田间试验，对稻-鸭-鱼共栖生态系统中水稻纹枯病的发生规律进行了研究并建立了相应的数学模型。
A field experiment was conducted to investigate the development rule of rice sheath blight in rice-duck-fish complex ecosystem. A model was established based on experiment data.
由于水稻稻瘟病及水稻纹枯病的病害程度是根据距离特征来检测，目前还没有定义数字图像距离的唯一方法。
The harm degree of the rice blast and the rice sheath blight was detected according to the distance characteristic, at present there had not defined the only method of digital image distance.
从中随机选取50个菌株进行菌丝细胞核染色，结果显示，水稻纹枯病菌菌丝的细胞核数目介于7 ~13个。
The hyphal cell nuclear Numbers of the 50 randomly selected isolates were between 7 and 13.
此方法三年来经我区13个乡镇100个村庄6000户农民示范施用，均达到了对小麦、水稻纹枯病的预防效果。
For 3 years, the method is applied as a demonstration by 6000 peasants in 100 villages of 13 towns, and achieves the preventative effect on the sheath blight of the wheat and the rice.
根据水稻纹枯病发生与危害程度的调查资料，经与各诱病因素的相关性分析，组建成早、晚稻纹枯病的长期预测模型。
Based on investigation materials of the occurrence degree of rice sheath blight, long period prediction models were built by means of correlative analysis with several predisposition factors.
对粗毒素进行生物活性检测，发现粗毒素在水稻叶片上能形成水稻纹枯病的典型症状，并可抑制水稻种子胚根的生长，致使水稻幼苗失绿萎蔫。
The biological activity assay of the crude toxin showed that it could induce the characteristic symptom of rice sheath blight and inhibit the growth of rice radicle and make the seedling wilting.
由此说明离体筛选的水稻抗纹枯病突变体的抗病机制与一般抗性品种类似。
These results suggested that in vitro screened rice somatic mutants resistant to sheath blight had the similar resistant mechanism as general resistant varieties.
表明水稻对纹枯病的抗性是可遗传的性状，对抗性的选择有效。
The results supported that rice resistance to sheath blight was a hereditable character and selection to resistance was effective.
采用人工接种和酶活性测定的方法，研究转入几丁质酶基因等1～4个抗真菌基因的13个转基因水稻株系对纹枯病的抗性和几丁质酶活性变化规律。
The research was conducted to reveal the regular of resistance to sheath blight and chitinase activities of 13 transgenic rice lines which modified by chitinase gene and other anti-fungal genes.
经过比较这四种诱导因子的诱导抗病性效果，确定了BTH和壳寡糖具有较好的诱导抗病效果，可作为水稻抗纹枯病的诱导因子。
We compared the induction effects of them against the rice sheath blight. The result shows that BTH and COS have the stronge inducing effects against the pathogen.
与未处理对照相比，BNR处理水稻植株的纹枯病害严重度明显降低。
A significant reduction of disease severity was observed on plant with BNR treatment compared with the non treat seedlings.
因此，以立枯丝核菌粗毒素处理水稻种子和幼苗可初步鉴定品种对纹枯病的抗性。
The inoculation tests showed that all isolates of R. solani and R. cerealis and their crude toxins had virulence on the plants of rice, maize and wheat.
因此，以立枯丝核菌粗毒素处理水稻种子和幼苗可初步鉴定品种对纹枯病的抗性。
The inoculation tests showed that all isolates of R. solani and R. cerealis and their crude toxins had virulence on the plants of rice, maize and wheat.
应用推荐