Understanding Root Rot Disease in Agricultural Crops

Williamson-Benavides, Bruce Andreas; Dhingra, Amit

doi:10.20944/preprints202012.0681.v1

Cited by 2 publications

(1 citation statement)

References 223 publications

(331 reference statements)

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“…In line with this finding, no fungal agents of root rot complex such as Pythium spp., Rhizoctoniasolani , Dactylonectria spp, Phoma spp. and others were isolated from roots (Williamson-Benavides and Dhingra, 2021). Root colonization communities were represented by saprophytic microfungi such as Mortierella , Acremonium and Moniliella .…”

Section: Resultsmentioning

confidence: 99%

Locally available compost application in organic farms: 2-year effect on biological soil properties

Assirelli¹,

Fornasier²,

Caputo

et al. 2023

Renew. Agric. Food Syst.

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Composting technologies have progressed parallel to the growing interest in recycling organic waste over recent decades, whilst in-field compost application requires technical improvement and more experience in order to optimize their effect according to the agro-environment and the type of crop which follow their incorporation into the soil. In response to compost application, biological soil features were assessed in field by adopting precision agricultural machinery and by limiting soil incorporation to a depth of 15 cm. A 2-year trial was carried out on two sites in the East Po valley (Northern Italy), an agricultural district which, in 2000, was classified as being on the verge of desertification, and where efforts to counteract soil organic matter decline have been underway for some decades. A green-waste compost produced in accordance with current national directives was applied in autumn 2019 and 2020 to two organic fields using precision farming machinery for compost spreading and conventional harrows for incorporation. Fields were divided into two large plots to compare the effect of compost treatment to an untreated control and were managed according to organic farming practices. Seven months after application, microbial biomass, assessed in terms of DNA, and 17 enzymatic activities were estimated by sampling root-explored soil at the vegetative stage of different seed crops for organic horticulture. A significant overall increase of biological soil activity was detected after the second application. The qualitative response varied slightly between the two sites: a higher impact of microbial biomass was observed in the site that was poorer in soil organic matter; whilst in the other, an increase of phosphatase activities contributed more to the general increase of biological activity. Findings show that, in those agricultural soils, an agronomic advantage from compost can be obtained only after repeated applications; furthermore, precision farming technologies facilitate compost application even in small, specialized farms such as those which hosted this trial.

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Section: Resultsmentioning

confidence: 99%

Locally available compost application in organic farms: 2-year effect on biological soil properties

Assirelli¹,

Fornasier²,

Caputo

et al. 2023

Renew. Agric. Food Syst.

View full text Add to dashboard Cite

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Understanding Root Rot Disease in Agricultural Crops

Williamson-Benavides

Dhingra

2021

Horticulturae

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Root rot diseases remain a major global threat to the productivity of agricultural crops. They are usually caused by more than one type of pathogen and are thus often referred to as a root rot complex. Fungal and oomycete species are the predominant participants in the complex, while bacteria and viruses are also known to cause root rot. Incorporating genetic resistance in cultivated crops is considered the most efficient and sustainable solution to counter root rot, however, resistance is often quantitative in nature. Several genetics studies in various crops have identified the quantitative trait loci associated with resistance. With access to whole genome sequences, the identity of the genes within the reported loci is becoming available. Several of the identified genes have been implicated in pathogen responses. However, it is becoming apparent that at the molecular level, each pathogen engages a unique set of proteins to either infest the host successfully or be defeated or contained in attempting so. In this review, a comprehensive summary of the genes and the potential mechanisms underlying resistance or susceptibility against the most investigated root rots of important agricultural crops is presented.

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Understanding Root Rot Disease in Agricultural Crops

Cited by 2 publications

References 223 publications

Locally available compost application in organic farms: 2-year effect on biological soil properties

Locally available compost application in organic farms: 2-year effect on biological soil properties

Understanding Root Rot Disease in Agricultural Crops

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