Non-Chemical Control of Charcoal Rot of Urdbean by Sonchus oleraceous Application

IF 0.8 Q3 Agricultural and Biological Sciences

Planta Daninha Pub Date : 2020-01-01 DOI:10.1590/s0100-83582020380100044

S. Banaras, A. Javaid, A. Shoaib

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引用次数: 6

Abstract

ABSTRACT: Urdbean [Vigna mungo (L.) Hepper] is an important leguminous crop whose production is severely affected by charcoal rot disease caused by Macrophomina phaseolina. This study was undertaken to seek an environmental friendly alternative to synthetic fungicides for management of this disease. Dry biomass of an allelopathic weed Sonchus oleraceous L. was used to combat the menace. Fumigated sandy loam pot soil, pre-inoculated with M. phaseolina, was amended with different doses of dry biomass of the weed ranging from 0.5% to 3%. Application of 2% weed biomass completely controlled the disease. Soil inoculation with M. phaseolina inoculation (positive control) reduced shoot dry weight and grain yield of urdbean by 59% and 91%, respectively, over negative control. Application of different doses of soil amendment in pathogen inoculated soil enhanced shoot dry weight and grain yield of urdbean by 107-307% and 438-7400%, respectively, over positive control. The highest positive effect on growth and yield of uedbean in M. phaseolina contaminated soil was recorded due to 2.5% amendment. M. phaseolina inoculation significantly enhanced peroxidase (POX) and phenyl alanine ammonia lyase (PAL) activities. However, application of different doses of S. oleraceous biomass to the soil gradually decreased activities of these enzymes. The present study concludes that application of 2.5% dry biomass of S. oleraceous can completely control charcoal rot of urdbean and significantly enhance crop growth and yield.

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油菜非化学防治豇豆炭腐病的研究

摘要:野豆[Vigna mungo (L.)]黑豆是一种重要的豆科作物，它的生产受到严重的炭腐病的影响。这项研究是为了寻找一种环境友好的替代合成杀菌剂来治疗这种疾病。利用化感杂草松草(Sonchus olevereous L.)的干生物量来对抗这种威胁。在熏蒸后的砂壤土盆土中，预先接种菜绿支原体，添加0.5% ~ 3%的干生物量。施用2%的杂草生物量完全控制了病害。土壤接种菜豆(阳性对照)比阴性对照降低了豆豆地上部干重59%，籽粒产量91%。在接种过病菌的土壤中施用不同剂量的土壤改良剂可使豇豆地上部干重和籽粒产量分别比阳性对照提高107 ~ 307%和438 ~ 7400%。在豆豆污染土壤中，2.5%的改良剂对豆豆生长和产量的积极影响最大。接种菜绿芽孢杆菌可显著提高过氧化物酶(POX)和苯丙氨酸解氨酶(PAL)活性。然而，不同剂量的油桐生物量对土壤的施用逐渐降低了这些酶的活性。本研究表明，施用2.5%的干生物量能完全控制豇豆炭腐病，显著提高作物生长和产量。

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

Planta Daninha Agricultural and Biological Sciences-Plant Science

自引率

0.00%

发文量

审稿时长

16 weeks

期刊介绍： Planta Daninha is a scientific journal published by the Brazilian Society of Weed Science (SBCPD - Sociedade Brasileira da Ciência das Plantas Daninhas). Papers submitted for publication must be sent through an electronic system, on http://www.scielo.br/pd. Works may be written in Portuguese, English, or Spanish, and will be accepted after being reviewed and approved by the Editorial Board. Only papers that have not been published or submitted for publication in other media will be accepted. Articles in Portuguese will be translated to English after being properly corrected and authorized by the authors. Planta Daninha has with goal to publish genuine technical-scientific papers and literature reviews from a critical perspective on Biology, weed management, and related topics.