Effects of Green Manures on Verticillium Wilt of Potato

Davis, James R.; Huisman, O. C.; Westermann, D. T.; Hafez, S. L.; Everson, D. O.; Sorensen, L. H.; Schneider, A. T.

doi:10.1094/phyto-86-444

Cited by 156 publications

(122 citation statements)

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“…are unaffected by Brassica spp.-based green manures and there are no evidence of soil-borne disease suppression on subsequent tomato crops. Results from the current study are also in line with those of Davis et al [54] revealing that two consecutive years of sudangrass, oat, or rye green manures does not reduce inoculum of V. dahliae. In the same sense, Geary et al [55] find that oilseed radish, mustard, and canola exhibit limited effects on the severity of onion pink root caused by Phoma terrestris, and are not a viable option for this disease control.…”

Section: Discussionsupporting

confidence: 92%

“…Royal, respectively, as compared to animal manure. This increase in potato tuber yield using Brassicaceous species green manures was reported in several previous studies [30,38,54]. In this regard, Lehrsch and Gallian [64] find that planting radish as a green manure in the fall, prior to planting potato the following spring, leads to yield improvement in the grown potato as well as in the subsequent sugar beet crops.…”

Section: Discussionsupporting

confidence: 74%

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Effect of Fodder Radish (Raphanus sativus L.) Green Manure on Potato Wilt, Growth and Yield Parameters

Khiareddine¹

2016

Adv Crop Sci Tech

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Potato is threatened by several soil-borne fungi causing wilt and root rots. In this study, two fodder radish (Raphanus sativus L.) (FR) cultivars (cvs. Boss and Defender), used as green manure preceding a potato crop, were evaluated for their suppressive effects against wilt incidence and severity, potato growth and yield as compared to animal manure. The essay was carried out in a completely randomised design with three types of organic amendment and two potato cultivars (cvs. Spunta and Royal). Incidence of potato wilting noted 100 days post planting (DPP) was high, exceeding 70%, for all soil amendments tested. The extent of vascular discoloration varied depending on amendments used where cv. Defender behaved as the control while the highest extent was noted on potato plants grown in cv. Boss amended plots. As compared to animal manure, the application of cvs. Boss and Defender had increased by 48.43 and 41.28% the incidence of vascular discoloration on cv. Spunta, respectively, while on cv. Royal, only cv. Defender had reduced this parameter by 16.32%. Fungal isolations performed from roots and stems revealed the involvement of several soil-borne pathogens in the recorded plant wilting. Soil manuring using cvs. Boss and Defender FR resulted in significant increment in average stem number per plant and aerial part fresh weight by 22.79 and 21.32% and by 34.62 and 27.03%, respectively, as compared to animal manure. At 100 DPP, potato root fresh weight increase by 8.7 and 33.49% was noted on cv. Spunta compared to 30.34 and 23.48% recorded on cv. Royal. Potato tuber yield was improved by 38.28 and 10.7% and by 28.44 and 27.62% in cvs. Spunta and Royal, respectively, relative to animal manure. The use of FR as green manure may be implemented in the integrated management of soil-borne diseases for the enhancement of potato yield.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 74%

Effect of Fodder Radish (Raphanus sativus L.) Green Manure on Potato Wilt, Growth and Yield Parameters

Khiareddine¹

2016

Adv Crop Sci Tech

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“…The bioactivity of poaceous plants may be based on allelopathy (Ben-Hammouda et al 1995;Del Moral 1975) and/or toxicity of their decomposition products in soil (Davis et al 1996;Dover et al 2004;Guenzi et al 1967;Patrick et al 1963). Allelopathy depends, to a great extent, on organisms producing secondary metabolites -chemical compounds not necessarily needed for their basic metabolism, but which often confer ecological advantages by killing, weakening or repelling nearby competitors for nutrients, space or other niche resources (Weston 2005).…”

Section: Introductionmentioning

confidence: 99%

Deleterious activity of cultivated grasses (Poaceae) and residues on soilborne fungal, nematode and weed pests

et al. 2009

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Experiments were conducted in laboratory bioreactors and in field plots to test effects of certain cultivated members of the grass family (Poaceae = Gramineae), including wheat (Triticum aestivum cv. Yolo), barley (Hordeum vulgare cv. UC337), oats (Avena sativa cv. Montezuma), triticale (X Triticosecale), and a sorghum-sudangrass hybrid (Sorghum bicolor x S. sudanense = "sudex", cv. Green Grazer V) for soil disinfestation potential. Soilborne pest organisms tested for effects on survival and activity included the phytopathogens Sclerotium rolfsii, Pythium ultimum and Meloidogyne incognita, and a variety of weed taxa. Following soil amendment, bioreactors were incubated for 7 days at ambient (23°C) or elevated, but sublethal (38°C day/27°C night), soil heating regimens. Addition of each of the poaceous amendments to soil at 23°C resulted in inconsistently reduced tomato root galling (49-97%) by M. incognita, or reduced recovery of S. rolfsii and P. ultimum (0-100%) fungi in soil, after 7 days' incubation (P ≤ 0.05). When the organisms were exposed to the poaceous soil amendments at the 38 o / 27 o temperature regimen, nematode galling and recovery of active fungi were consistently and significantly reduced by 98-100%. These results demonstrated feasibility of soil disinfestation ("biofumigation") by activity of poaceous amendments, further aided by combining plant residues with soil heating (e.g. solarization). Results from three field experiments with sudex cover crops, conducted throughout the growing season, demonstrated biocidal activity on a range of weedy plants, including Amaranthus retroflexus, Calandrinia ciliata, Cerastium arvense, Digitaria sanguinalis, Echinochloa crus-galli and Poa annua. Both shoots and roots of sudex provided allelopathic weed biomass reductions of 35-100%, and for at least 106 days after shredding. Deleterious activity of shredded residues incorporated in soil was less persistent. These properties in poaceous crops can be useful for soil disinfestation;

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“…Applying cow manure as organic fertilizers for composting forage provides better results on plant growth when compared to inorganic ones (Vukobratović et al, 2008;Esmaeilian et al, 2012;Haghighat et al, 2012). Similar studies have also been carried out on rice cultivation (Kayeke et al, 2007;Jeon et at., 2011), potatoes (Davis et al, 1996) and maize (Baiwa et al, 2002;Tejada, et al, 2008;Dhima et al, 2009;Wijesinghe et al, 2009;Odhiambo, et al, 2010;Maobe et al, 2010;Talgre et al, 2012;da Silva et al, 2012). The objective of this study was to isolate and identify microbial decomposers from the manure of Palu local cow.…”

Section: Introductionmentioning

confidence: 99%

Isolation and identification on microorganism decomposers of Palu local cow manure of Central Sulawesi, Indonesia

Idham¹,

Sudiarso

Aini

et al. 2016

J.Degrade.Min.Land Manage.

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Abstract:Microbial decomposers are living things posessing an important role in outlining materials derived from organic compounds entering the environment as plant nutrients so that they arereusable by the greenery. This study was aimed to isolate and identify types of microbial decomposers from Palu local cow manure of Central Sulawesi, Indonesia. The results showed that in Palu local cow manure there were three types of microbial decomposers namely Lactobacillus sp, Actinomycetessp and Aspergillus sp. In Actinomycetes sp., the colony growth was very slow and firmly attached to the media surface after incubated for 7 days. It showed formation of mycelium spreading on the media surface with a serrated edge. Aspergillus sp.had morphological characteristics formed on media as follows: greenyellowcolonies; like-furtextures; green conidia; radiatconidia arrangement, uniseriat, fialidwhich almostfilled the entiresurface of vesicles; like-ballroundvesicle; coarse, thick-walled, and dark greenconidiophores.

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Effects of Green Manures on Verticillium Wilt of Potato

Cited by 156 publications

References 0 publications

Effect of Fodder Radish (Raphanus sativus L.) Green Manure on Potato Wilt, Growth and Yield Parameters

Effect of Fodder Radish (Raphanus sativus L.) Green Manure on Potato Wilt, Growth and Yield Parameters

Deleterious activity of cultivated grasses (Poaceae) and residues on soilborne fungal, nematode and weed pests

Isolation and identification on microorganism decomposers of Palu local cow manure of Central Sulawesi, Indonesia

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