Management of Charcoal Rot (Macrophomina phaseolina) of Fenugreek in Rajasthan

IF 0.8 4区 生物学 Q3 AGRONOMY Legume Research Pub Date : 2023-10-23 DOI:10.18805/lr-5114
Santosh Kumari, A.K. Meena, Jasveer Singh, Rakesh Kumar, Vikash Kumar, Jasveer Singh
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Abstract

Background: Charcoal rot of fenugreek caused by Macrophomina phaseolina is destructive disease of all fenugreek growing areas of Rajasthan, The disease is wide occurrence in sandy soil of Rajasthan, where the climatic conditions are dry and temperature remains high. Under severe infestation it cause 35.00-42.56% losses in yield. In the present investigation, our main emphasis was to find out some new fungicides alone and combination with bio-agent for management of charcoal rot of fenugreek. Methods: Eight fungicides viz., captan 70%+ hexaconazole 5% WP, azoxystrobin 18.2% + difenaconazole 1.4% SC, chlorothalonil 75% WP, carbendazim 12% + mancozeb 63% WP, tebuconazole 50% + trifloxystrobin 25% WG, carboxin 37.5% + thiram 37.5% WP, copper oxychloride 50% WP and captan 70% WP were tested at different concentration of 100, 200, 300, 400 and 500 ppm against M. phaseolina using Poisoned Food Technique in vitro. The in vivo study was taken to evaluate the effect of one fungal and one bacterial bio-agent viz., T. harzianum, P. fluorescens was applied as seed treatment, soil dressing and soil application @ 5+5g/kg and @ 10 kg/ha respectively and fungicides viz., tebuconazole 50%+ trifloxystrobin 25% @ 1.5 g/kg, carbendazim 12% + mancozeb 63% @ 2 g/kg and azoxystrobin 18.2% + difenaconazole 11.4% 2 ml/kg seed were used in different treatments. The experiment was conducted at Experimental farm COA, SKRAU, Bikaner during Rabi 2020-21 on most popular cv. Rmt-305 in RBD design with the application of seed treatment, soil dressing and foliar spray of different fungicides with bioagents at different concentrations against Charcoal Rot disease and compared with an untreated control. Result: Among all the tested fungicides used in the present investigation, tebuconazole 50% + trifloxystrobin 25% WG found most effective in controlling the mycelium growth of pathogen. In field condition, it gave maximum disease control (85.72%) with highest grain yield (19.83 q/ha) when applied as seed treatment with tebuconazole 50% + trifloxystrobin 25% WG @ 1.5 g/kg seed + soil application of T. harzianum @ 10 kg/ha + SD with tebuconazole 50% + trifloxystrobin 25% WG. These treatments can provide an effective management of charcoal rot disease for fenugreek cultivators.
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拉贾斯坦邦葫芦巴炭腐病的防治
背景:葫芦巴炭腐病是拉贾斯坦邦所有葫芦巴种植区的破坏性病害,病害广泛发生在气候条件干燥、温度较高的沙质土壤中。严重侵染时造成产量损失35.00-42.56%。在本研究中,我们的重点是寻找一些新的杀菌剂单独或与生物制剂联合用于葫芦巴炭腐病的治理。方法:采用食品中毒技术,在100ppm、200ppm、300ppm、400ppm、500ppm的不同浓度条件下,分别测定了队长坦70%+六氟康唑5% WP、嘧菌酯18.2% +二苯康唑1.4% SC、百菌清75% WP、多菌灵12% +代森锰锌63% WP、戊唑唑50% +三氟菌酯25% WG、carboxin 37.5% + thiram 37.5% WP、氯化氧铜50% WP和队长坦70% WP等8种杀菌剂对稻瘟病菌的体外杀灭效果。采用体内试验的方法,评价了一种真菌和一种细菌生物制剂哈氏菌(T. harzianum, P. fluorescens)作为种子处理,土壤处理和土壤施用分别为@ 5+5g/kg和@ 10 kg/ha,不同处理的杀菌剂为:戊唑唑50%+三氟虫胺酯25% @ 1.5 g/kg,多菌灵12% +代森锰锌63% @ 2 g/kg和氮虫胺酯18.2% +地芬康唑11.4% 2 ml/kg。试验于2020-21年拉比期间在比卡内尔、SKRAU、COA试验农场进行。Rmt-305在RBD试验中采用种子处理、土壤处理和叶面喷施不同浓度杀菌剂防治炭腐病,并与未处理对照进行比较。结果:在本研究使用的杀菌剂中,50%戊康唑+ 25%三氯虫酯WG对病原菌菌丝生长的控制效果最好。在田间条件下,采用50%戊唑唑+ 25%三氯虫酯WG @ 1.5 g/kg种子+土施10 kg/ha土施50%戊唑唑+ 25%三氯虫酯WG SD处理,防治效果达85.72%,产量达19.83 q/ha。这些处理可以为胡芦巴栽培者提供有效的炭腐病管理。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Legume Research
Legume Research AGRONOMY-
CiteScore
1.30
自引率
37.50%
发文量
256
审稿时长
6-12 weeks
期刊介绍: Legume Research An International Journal. The Journal is an official publication of Agricultural Research Communication Centre. It is designed to bring out the original research articles on genetics, breeding, physiology, bacterial avtivity, production, quality, biochemistry and seeds of legumes crops. The objective of the journal is to serve as a forum for scientific community to publish their research findings on legumes ans to provide basis for new research. Journal is being scanned in the important indexing and abstracting services.
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