Incidence and severity of foliar diseases of sesame (<i>Sesamum indicum</i>L.) intercropped with maize (<i>Zea mays</i>L.)

Enikuomehin, O. A.; Aduwo, A. M.; Olowe, Victor; Popoola, A. R.; Oduwaye, A. O.

doi:10.1080/03235400802214810

Cited by 9 publications

(16 citation statements)

References 9 publications

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“…The community composition and quantitative changes of microorganisms in the rhizosphere soil greatly contribute to crop diseases, especially soil-borne diseases. Previous studies demonstrated that intercropping can mitigate crop diseases, which is strongly associated with the resulting changes in the soil microbial community structure (Fernández-Aparicio et al 2010;Abdel-Monaim and Abo-Elyousr 2012;Enikuomehin et al 2010 ). In a reasonable intercropping system, the roots of crops are interlaced with each other, producing a variety of rhizosphere exudates to exert a more obvious rhizosphere effect.…”

Section: Discussionmentioning

confidence: 99%

Effects of tobacco–peanut relay intercropping on soil bacteria community structure

Gao

Liu

et al. 2019

Ann Microbiol

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Purpose A reasonable cultivation pattern is beneficial to maintain soil microbial activity and optimize the structure of the soil microbial community. To determine the effect of tobacco−peanut (Nicotiana tabacum−Arachis hypogaea) relay intercropping on the microbial community structure in soil, we compared the effects of relay intercropping and continuous cropping on the soil bacteria community structure. Methods We collected soil samples from three different cropping patterns and analyzed microbial community structure and diversity using high-throughput sequencing technology. Result The number of operational taxonomic units (OTU) for bacterial species in the soil was maximal under continuous peanut cropping. At the phylum level, the main bacteria identified in soil were Proteobacteria, Actinobacteria, and Acidobacteria, which accounted for approximately 70% of the total. The proportions of Actinobacteria and Firmicutes increased, whereas the proportion of Proteobacteria decreased in soil with tobacco–peanut relay intercropping. Moreover, the proportions of Firmicutes and Proteobacteria among the soil bacteria further shifted over time with tobacco–peanut relay intercropping. At the genus level, the proportions of Bacillus and Lactococcus increased in soil with tobacco–peanut relay intercropping. Conclusion The community structure of soil bacteria differed considerably with tobacco–peanut relay intercropping from that detected under peanut continuous cropping, and the proportions of beneficial bacteria (the phyla Actinobacteria and Firmicutes, and the genera Bacillus and Lactococcus) increased while the proportion of potentially pathogenic bacteria (the genera Variibacter and Burkholderia) decreased. These results provide a basis for adopting tobacco–peanut relay intercropping to improve soil ecology and microorganisms, while making better use of limited cultivable land.

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Section: Discussionmentioning

confidence: 99%

Effects of tobacco–peanut relay intercropping on soil bacteria community structure

Gao

Liu

et al. 2019

Ann Microbiol

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“…Experimental evidence has been presented in Nigeria that intercropping sesame with maize in a single alternate row (1:1) arrangement can be useful in reducing the severity of Alternaria leaf blight of sesame (Enikuomehin et al 2010(Enikuomehin et al , 2011.…”

Section: Cultural Controlmentioning

confidence: 99%

Diseases of Edible Oilseed Crops

Chattopadhyay¹,

Kolte²,

Waliyar³

2015

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AgriculturalSciences. He has more than 22 years of research experience in oilseed crop disease management and has significantly contributed in the areas of understanding the host-pathogen interactions, epi demiology, and integrated disease management in sunflower, safflower, sesame, peanut, and rape seed-mustard crops. He has published more than 70 peer-reviewed research papers and 4 books. Dr. Chattopadhyay has to his credit several academic awards and one patent. His significant research achievements include the development of Fusarium wilt-resistant genotypes in safflower, the iden tification of genotypes of Brassica juncea resistant to a mixture of isolates of Albugo candida, the development of a biocontrol agent formulation to reduce the use of fungicides in the management of major diseases of oilseeds (Brassica), and seed treatment (and foliar application) of aqueous bulb extract of Allium sativum for the management of major foliar diseases (Alternaria blight, white rust, powdery mildew, and Sclerotinia stem rot) of mustard. S.J. Kolte, professor of plant pathology (Retd.

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“…This will further make simpler and adoptable, the prescription of foliar spray of T. diversifolia leaf extract in a sesame/maize intercrop as a sesame disease management option. (Enikuomehin et al, 2010;Oduwaye and Enikuomehin, 2013). The plant extract used in the study was obtained from fresh leaves of T. diversifolia (Hemsi) A.…”

Section: Original Research Articlementioning

confidence: 99%

“…Intercropping has the advantage of giving farmers multiple harvests from component crops (Nagesh, 2015) as well as reduction of disease incidence and severity (Finisa, 1996;Enikuomehin et al, 2006) with attendant improvement in crop yield (Olasantan et al, 2007). An earlier study (Enikuomehin et al, 2010) reported that intercropping sesame with maize in alternate row (1:1) arrangement reduced CLS and ALB incidence and severity as well as enhanced production of good quality seeds. Furthermore, foliar spray of leaf extract of T. diversifolia or Chromolaena odorata on sesame intercropped with maize induced significant reductions in disease incidence and severity, with attendant improvement in crop yield and seed health (Jimoh et al, 2016).…”

Section: Original Research Articlementioning

confidence: 99%

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Improving the efficacy of Tithonia diversifolia extract in management of foliar diseases of sesame intercropped with maize under tropical conditions

Jimoh

Enikuomehin

Afolabi

et al. 2021

Agricultura Tropica Et Subtropica

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Cercospora leaf spot (CLS) and Alternaria leaf blight (ALB) diseases are major constraints to sesame production. Although disease management through intercropping of sesame with maize and foliar-spray with extracts of Tithonia diversifolia have been found to be effective, the frequency of application of the extracts required to achieve optimal disease control have not been determined. Therefore, a study was carried out to determine the effect of frequency of application of T. diversifolia extract on CLS and ALB diseases of sesame intercropped with maize during the early (June – September) and late (August – November) cropping seasons of 2011. Field experiments laid out in a Randomised Complete Block design and in a split plot arrangement with three replications were conducted in Ejigbo, Nigeria. Treatments consisted of aqueous Tithonia diversifolia leaf extract applied at 7.0, 7.5 or 8.0 % (w/v) in one-, two- or three- spray regimes at 2-week intervals from three weeks after planting (WAP) to plots of sesame intercropped with maize; Unsprayed sesame/maize intercrop; sesame/maize intercrop sprayed with Carbendazim (50 %)WP and unsprayed sole sesame plots. Results revealed that CLS and ALB incidence, severity and defoliation were significantly (p < 0.05) reduced by three-spray regime of 7.5 % (w/v) T. diversifolia extract. The efficacy of 7.5 % (w/v) T. diversifolia extract was comparable to that of 8.0 % (w/v) T. diversifolia extract or synthetic fungicide (Carbendazim 50 %WP). This study showed that the three-spray regime of 7.5 % w/v T. diversifolia leaf extract is sufficient to control foliar diseases of sesame intercropped with maize.

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Incidence and severity of foliar diseases of sesame (Sesamum indicumL.) intercropped with maize (Zea maysL.)

Cited by 9 publications

References 9 publications

Effects of tobacco–peanut relay intercropping on soil bacteria community structure

Effects of tobacco–peanut relay intercropping on soil bacteria community structure

Diseases of Edible Oilseed Crops

Improving the efficacy of Tithonia diversifolia extract in management of foliar diseases of sesame intercropped with maize under tropical conditions

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