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Exploring factors affecting the efficiency of resistant catch crops to control the beet cyst nematode

Exploring factors affecting the efficiency of resistant catch crops to control the beet cyst nematode
影响抗性农作物控制甜菜胞囊线虫效率的因素
批准号:
467450516
负责人:
Dr. Rasha Haj Nuaima
金额:
$0.0万
依托单位国家:
德国
项目类别:
Research Grants
财政年份:
2021
资助国家:
德国
项目状态:
已结题
起止时间:
2020-12-31 至 2023-12-31

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中文摘要
翻译
甜菜胞囊线虫(Heterodera schachtii施密特)是甜菜上最重要的害虫之一,150多年来一直是深入研究的对象。管理H。Schachtii依赖于宿主作物与非宿主作物的广泛轮作,抗性宿主的覆盖种植,以及培育抗性或耐受性甜菜品种。抗性渔获物刺激H.但不允许线虫繁殖。根据这一效应,在甜菜种植之前种植抗性捕集作物将导致H. Schachtii和甜菜产量的增加。然而,利用芸苔属作物来控制H。已在全世界许多地方对沙氏菌进行了调查,并获得了不同的结果。因此,似乎抗线虫的捕捞作物对H。沙氏藻变异性很大,有必要对其用途进行进一步研究,特别是因为不同国家和不同年份的不同研究人员得出的结果不同。基于我们的研究结果和以往的研究结果,我们希望在这一建议扩大研究调查因素的影响,抗油菜萝卜对H。沙赫蒂。我们将开始确定一个抗线虫品种的潜力是否与H. Schachtii种群研究了J2吸附微生物在根结线虫根系中的生态作用及其对J2渗透的影响。和P.在本研究中,我们希望扩大对H.特别是微生物附着物与抗性萝卜之间的相互作用具有种群特异性。总之,土壤类型对抗性油菜萝卜防治H。将在本项目中定义schachtii。确定影响抗线虫捕捞作物潜力的因素对于填补我们对使用诱捕作物作为甜菜胞囊线虫H综合管理的一部分的理解的空白至关重要。沙赫蒂。
英文摘要
The beet cyst nematode, Heterodera schachtii Schmidt, is one of the most important pests of sugar beet, and has been the subject of intensive investigations for over 150 years. Management of H. schachtii relies on a wide rotation of host crops with non-hosts, cover cropping with resistant hosts, and cultivating resistant or tolerant sugar beet cultivars. The resistant catch crops stimulate second stage juveniles (J2)of H. schachtii infection but do not permit nematode reproduction. According to this effect, the growing of resistant catch crops prior sugar beet should result in a reduction in the population density of H. schachtii and an increase in the yield of sugar beet. However, the use of Brassica catch crops to control H. schachtii has been investigated in many locations worldwide and mixed results have been obtained. It therefore appears that the efficiency of nematode-resistant catch crops towards H. schachtii is highly variable and further research into their use is necessary, especially as different results are obtained by different researchers in different countries and in different years. Based on our findings and findings of previous studies we want in this proposal to expand researches for investigating factors that impact the efficiency of resistant oilseed radish against H. schachtii. We will start to define if the potential of a nematode-resistant cultivar is related to the phenotypic and genetic characters of H. schachtii population. The ecological role of the J2-attached microbes and its effect on the J2 penetration into the plant roots were studied for Meloidogyne spp. and P. penetrans. In this proposal we want to expand the studies on the microbial attachment to J2 of H. schachtii, especially the interaction between the microbial attachers and the resistant oilseed radish in a population-specific manner. After all, the effect of the soil type on the effectiveness of the resistant oilseed radish to control H. schachtii will be defined in this project. Determining factors affecting the potential of nematode-resistant catch crops will be essential to fill gaps in our understanding of the use of trap crops as a part of integrated management of the beet cyst nematode H. schachtii.
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