印度中部大豆种植区抗吡虫啉丛林稻(紫斑藓属)的案例研究

IF 1.4 Q3 AGRONOMY Agricultural Research Pub Date : 2023-05-25 DOI:10.1007/s40003-023-00651-0

Subhash Chander, Dibakar Ghosh, Vikas C. Tyagi, C. R. Chethan, Deepak Pawar, Yogita Gharde, Bhumesh Kumar, P. K. Singh

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引用次数: 0

摘要

丛林稻是大豆的主要杂草之一，会造成严重的产量损失。据农民报告，伊玛泽他吡对大豆中大肠杆菌杂草的防治效果不佳。因此，对印度中部21个大豆种植区进行了调查，共收集到94个大肠杆菌生物型。2017年和2018年进行了网舍实验，以评估大肠杆菌生物型对伊马泽塔吡的抗性。Imazethapyr的剂量分别为100、200和400 g ha−1，施用于大肠杆菌4-5叶期。在初步筛选过程中，发现来自15个地区的大肠杆菌生物型具有不同的抗性水平。在第二代筛选中，用LD50鉴定了来自Ashoknagar（APS）、Indore（IAS和IFS）、Dhar（DBS）、Sagar（SaSS1和SaDS）、Hosangabad（HoRS1和HoRS2）的高抗性生物型 >；抗性指数表明，抗性生物型的抗性是感病生物型的18-11650倍。因此，这是首次在印度大豆中发现抗伊玛他帕的丛林稻。

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Imazethapyr-Resistant Jungle Rice (Echinochloa colona) in Soybean Growing Belt of Central India: A Case Study

The Jungle rice [Echinochloa colona (L.)Link] is one of the major weed of soybean, which causes significant yield loss. Poor efficacy of imazethapyr for controlling E. colona weed in soybean was reported by farmers. Therefore, a survey was conducted in 21 soybean growing districts of Central India and 94 E. colona biotypes were collected. Net house experiments were conducted in 2017 and 2018 to evaluate resistance of E. colona biotypes against imazethapyr. Imazethapyr was applied at dose of 100, 200 and 400 g ha⁻¹ at 4–5 leaf stage of E. colona. During initial screening E. colona biotypes from 15 districts were found with variable level of resistance. During second generation of screening, highly resistant biotypes from Ashoknagar (APS), Indore (IAS and IFS), Dhar (DBS), Sagar (SaSS1 and SaDS), Hosangabad (HoRS1and HoRS2) was identified with LD₅₀ > 1000 g ha⁻¹. The resistance index indicated that resistant biotypes were 18–11,650 fold more resistant than the susceptible ones. Thus, this is the first report of imazethapyr-resistant jungle rice in soybean from India.

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来源期刊

Agricultural Research AGRONOMY-

CiteScore

3.80

自引率

0.00%

发文量

期刊介绍： The main objective of this initiative is to promote agricultural research and development. The journal will publish high quality original research papers and critical reviews on emerging fields and concepts for providing future directions. The publications will include both applied and basic research covering the following disciplines of agricultural sciences: Genetic resources, genetics and breeding, biotechnology, physiology, biochemistry, management of biotic and abiotic stresses, and nutrition of field crops, horticultural crops, livestock and fishes; agricultural meteorology, environmental sciences, forestry and agro forestry, agronomy, soils and soil management, microbiology, water management, agricultural engineering and technology, agricultural policy, agricultural economics, food nutrition, agricultural statistics, and extension research; impact of climate change and the emerging technologies on agriculture, and the role of agricultural research and innovation for development.