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首页> 外文期刊>Scientia Africana: An International Journal of Pure & Applied Sciences >INCIDENCE SURVEY AND SEVERITY OF FUNGAL DISEASES OF RICE IN RICE GROWING AREAS OF SOUTH-EASTERN NIGERIA
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INCIDENCE SURVEY AND SEVERITY OF FUNGAL DISEASES OF RICE IN RICE GROWING AREAS OF SOUTH-EASTERN NIGERIA

机译：尼日利亚东南部水稻种植区水稻真菌病害发病率调查及严重程度

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摘要

There has been a low productivity experienced by rice farmers in South Eastern Nigeria as a result of high infestation of pests and diseases caused majorly by fungal pathogens. This research was aimed at pulling together the fungi pathogens associatedwith rice plants through a comprehensive survey in such a way that one could see at a glance what the problems of fungi diseases look like in the zone. Two middle diagonal lines were drawn (in each plot of rice at distance of 20 cm) along the transverseand sampled. Disease incidence was assessed by visual observation of rice diseases in the fields. Data collected were subjected to ANOVA in RCBD using Gen Stat. 7.2 DE version (2007). Mean separation was done using Fisher’s Least Significant Difference(F-LSD) at 5% level of probability. Incidence and severity of rice diseases was as high as 98.60% and 3.20, respectively. The most important diseases were seed rot caused by Fusarium moniliforme followed by leaf rot caused by Helminthosporium oryzae. Fusarium moniliforme was the most frequently occurring. Out of the fungi belonging to nine genera Fusarium moniiforme was highest in Abia, Helminthosorium oryzae was highest in Anambra,State and Trichoconis padiwickii was highest in Ebonyi. Phoma oryzae occurred most in Enugu State while Fusarium oxysporim was highest in Imo state.
机译：有低生产率经历稻农在尼日利亚东部的南部高造成的害虫和疾病侵扰主要由真菌病原体。旨在齐心协力真菌病原体通过一个与水稻全面调查以这样一种方式,可以一眼就看到问题的真菌区疾病的样子。对角线(每个情节的大米沿着transverseand 20厘米的距离)采样。观察水稻疾病领域。收集受到RCBD使用方差分析创Stat。7.2版本(2007)。完成使用费舍尔最重要差异(F-LSD)在5%水平的概率。发病率和严重程度的大米一样的疾病分别高达98.60%和3.20。重要疾病种子腐烂所致镰刀菌素moniliforme叶腐烂造成紧随其后由蠕孢菌oryzae。是最常出现。真菌属于9属镰刀菌素在名为Abia moniiforme最高,Helminthosoriumoryzae在绑票最高,和状态Phoma oryzae大多数发生在埃努古州镰刀菌素oxysporim是最高的国际海事组织状态。

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