CONTROL OF MELOIDOGYNE INCOGNITA IN VEGETABLE PRODUCTION BY CROP ROTATION IN IVORY COAST

<p class="sar-body"><span lang="EN-US">There are little economic data concerning the profitability of organic vegetable crops in the Southern Coastal Plain, especially in reference to sod-based rotation and tillage alternatives. A three-year experiment was conducted at the North Florida Research and Education Center-Quincy involving a crop rotation sequence of oats and rye (winter), bush beans (spring), soybean (summer) and broccoli (fall). Bush beans and broccoli were the cash crops. This paper presents analyses of the riskiness of organic production utilizing years in bahiagrass prior to initiating the crop rotation sequence and conventional tillage (CT) versus strip tillage (ST). Methods of “Risk-rated enterprise budget” and “Analyses of Variance-Covariance Matrix (ANOVA)” were utilized for determining relative profitability, and coefficient of variation was applied for measuring riskiness of each treatment. Three years of bahiagrass prior to initiating the crop rotation sequence, in combination with conventional tillage, had the highest profitability and ranked as the least risky scenario. The second most profitable treatment was conventional tillage with four years of bahiagrass. Focusing on strip tillage, four years of bahiagrass with strip-tillage ranked third in term of profitability.</span></p>

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Effects of plastic mulch and crop rotation on soil physical properties in rain-fed vegetable production in the mid-Yunnan plateau, China

Soil and Tillage Research ◽

10.1016/j.still.2014.09.010 ◽

2015 ◽

Vol 145 ◽

pp. 111-117 ◽

Cited By ~ 24

Author(s):

G.S. Zhang ◽

X.B. Hu ◽

X.X. Zhang ◽

J. Li

Keyword(s):

Physical Properties ◽

Crop Rotation ◽

Soil Physical Properties ◽

Vegetable Production ◽

Plastic Mulch ◽

Yunnan Plateau

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Crop rotation, organic amendments and nematicides for control of root-knot nematodes (Meloidogyne incognita) on ginger

Australasian Plant Pathology ◽

10.1071/ap98026 ◽

1998 ◽

Vol 27 (4) ◽

pp. 234 ◽

Cited By ~ 11

Author(s):

G.R. Stirling ◽

A. Nikulin

Keyword(s):

Crop Rotation ◽

Meloidogyne Incognita ◽

Organic Amendments ◽

Root Knot Nematodes

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005 EVALUATING VELVETBEAN AS PART OF THE CROP ROTATION IN SUSTAINABLE VEGETABLE PRODUCTION

HortScience ◽

10.21273/hortsci.29.5.428b ◽

1994 ◽

Vol 29 (5) ◽

pp. 428b-428

Author(s):

Kathryn E. Brunson ◽

Sharad C. Phatak ◽

J. Danny Gay ◽

Donald R. Summer

Keyword(s):

Crop Rotation ◽

Cover Crop ◽

Subterranean Clover ◽

Vegetable Production ◽

Vegetable Crops ◽

Root Knot Nematode ◽

Nematode Density ◽

Crimson Clover ◽

Before And After ◽

Southern Root Knot Nematode

Velvetbean (Mucuna deeringiana L.) was used in crop rotation to determine the influence on southern root-knot nematode (Meloidogyne incognita) in sustainable vegetable production. Replicated trials were conducted at four locations. Two cover crop treatments, crimson clover and subterranean clover, were used in the sustainable plots and rye was the plow-down cover crop for the conventional plots. Selected as the vegetable crops were tomato, pepper, and eggplant. Following the final harvest, velvetbean was planted into the sustainable plots and disked under after 90 days. Results from soil samples before and after velvetbean, indicated the sustainable plots had substantially reduced nematode densities, while most conventional plots showed increases. A correlation between location, treatment, root-gall indexes and nematode density occurred in all crops for 1992. In 1993 there was only a correlation between root-gall index and nematode density in pepper. However, root-gall indexes were significant for location and treatment in all crops.

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Influence of Velvetbean on Southern Root-knot Nematode When Used As Part of the Crop Rotation in Low-input Vegetable Production in Southern Georgia

HortScience ◽

10.21273/hortsci.30.4.806c ◽

1995 ◽

Vol 30 (4) ◽

pp. 806C-806

Author(s):

Kathryn E. Brunson ◽

Sharad C. Phatak ◽

J. Danny Gay ◽

Donald R. Sumner

Keyword(s):

Crop Rotation ◽

Cover Crops ◽

Production Systems ◽

Vegetable Production ◽

Vegetable Crops ◽

Root Knot Nematode ◽

Low Input ◽

Before And After ◽

Southern Georgia ◽

Southern Root Knot Nematode

Velvetbean (Mucuna deeringiana L.) has been used as part of the crop rotation in low-input vegetable production in southern Georgia to help suppress populations of root-knot nematode (Meloidogyne incognita) for the past 2 years. Over-wintering cover crops of crimson and subterranean clovers were used the low-input plots and rye was the plow-down cover crop in the conventional plots. Tomatoes, peppers, and eggplant were the vegetable crops grown in these production systems. Following the final harvest in 1992, use of nematicides in the low-input plots was discontinued and velvetbean was then planted into the low-input plots and disked in after 90 days. Results from the 1993–94 soil samples taken before and after velvetbean showed a continuing trend of reduced nematode numbers where velvetbean had been, while most conventional plots that had nematicides applied resulted in increases in nematode populations.

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Reaction of weeds, found in vegetable production areas, to root-knot nematodes Meloidogyne incognita and M. enterolobii

Horticultura Brasileira ◽

10.1590/s0102-053620190413 ◽

2019 ◽

Vol 37 (4) ◽

pp. 445-450

Author(s):

Jadir B Pinheiro ◽

Giovani Olegario da Silva ◽

Danielle Biscaia ◽

Amanda G Macedo ◽

Núbia Maria Correia

Keyword(s):

Meloidogyne Incognita ◽

Great Majority ◽

Egg Mass ◽

Vegetable Production ◽

Vegetable Crops ◽

Weed Species ◽

Root Knot Nematodes ◽

Hyptis Suaveolens ◽

Race 1 ◽

Production Areas

ABSTRACT Root-knot nematodes cause great damage to vegetable crops in Brazil, besides having a large range of host plants, such as weeds. Weeds can maintain the inoculums or even favor the multiplication of these nematodes. In this study we evaluated the reaction of selected weed species, present in a vegetable production area, to root-knot nematodes Meloidogyne incognita and M. enterolobii. The trials were conducted in a greenhouse at Embrapa Hortaliças, Brasília-DF, in a completely randomized design with six replicates. Fifteen weed species were evaluated for M. incognita race 1, and 16 weed species were evaluated for M. enterolobii. Two tomato cultivars were evaluated as resistance and susceptibility standards. Gall index (IG), egg mass index (IMO), number of eggs per gram of roots (eggs/g roots) and reproduction factor (FR) were evaluated. M. enterolobii survives and multiplies more easily in weeds collected in vegetable production areas than M. incognita race 1 and, the great majority of weed species evaluated in this study are hosts of both nematode species. Only the species Urena lobata, Sonchus oleraceus, Euphorbia heterophylla, Melampodium perfoliatum and Tagetes sp. were immune to M. incognita race 1. All evaluated species are either hosts or favor the multiplication of M. enterolobii. The species which are the most susceptible to M. incognita race 1, and therefore require greater control of crops infected by this nematode are Ipomoea nil, I. triloba and Eleusine indica, and for M. enterolobii are I. nil, Solanum americanum, Hyptis suaveolens, Portulaca oleracea, I. triloba and Euphorbia heterophylla.

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Reaction of Cotton Genotypes to Meloidogyne Incognita Race 3 and Selection Ofisolates With High Reproductive Rate in Cotton

10.21203/rs.3.rs-52768/v1 ◽

2020 ◽

Author(s):

Ely Pires ◽

Vanessa Aparecida Antes ◽

Gisele Pereira Domiciano ◽

Caio Felipe de Barros Souza ◽

Edriana Araújo Lima ◽

...

Keyword(s):

Crop Rotation ◽

Meloidogyne Incognita ◽

Reproductive Rate ◽

Field Conditions ◽

Yield Losses ◽

Sources Of Resistance ◽

Breeding Programs ◽

Screening For Resistance ◽

Cotton Genotypes ◽

Future Work

Abstract Background: Among the pathogens that reduce cotton productivity in Brazil, Meloidogyne incognita is one of the most important as it causes severe yield losses and is widespread. The most recommended methods for control of this species are the use of resistant cultivars and crop rotation systems. In Brazil, M. incognita races 3 and 4 have already been reported as cotton parasites but the race 3 is the most commonly found and widely disseminated.This work aimed at selecting virulent and aggressive populations of M. incognita race 3 for testing sources of resistance to this nematode in cotton genotypes.Results: The three isolates of M. incognita race 3 were important for screening of resistant cotton genotypes. The isolate from Umuarama was the most aggressive followed by Moreira Sales and Iporã. The genotypes CD 05-419, CD 05-945, CD 05-1087 and CD 05-1170 showed good performance against M. incognita race 3 in both greenhouse and field conditions.Conclusions: The cotton genotypes CD05-945, CD05-1170, CD05-1087 and CD05-419 will be selected for future work involving tests for resistance against other important cotton pathogens. Those genotypes can also be used as source of genes for resistance to nematodes in cotton breeding programs. The search for virulent and aggressive M. incognita isolates was very important when screening for resistance in cotton germplasm.

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