Root knot tolerance in some grape vine rootstocks

1967 ◽  
Vol 7 (29) ◽  
pp. 580 ◽  
Author(s):  
MR Sauer
Keyword(s):  
Growth Habit ◽  
Sandy Loam ◽  
Meloidogyne Javanica ◽  
Nematode Resistance ◽  
Sandy Loam Soil ◽  
Root Knot Nematode ◽  
Grape Vine ◽  
Loam Soil ◽  
Moderate Resistance

Sultana vines grafted on rootstocks with slight to moderate resistance to root knot nematode, Meloidogyne javanica (Treub) Chitwood, were planted in root knot infested sandy loam soil in an established vineyard that had been fumigated with DD at 20 gallons an acre immediately after old vines were removed. Over a seven-year period vigorous high yielding vines were produced on the rootstocks 101-14 and Rupestris du Lot. An off type 101-14 and 420A were less successful. Ungrafted sultana vines in the same soil matched grafted vines in growth for three or four years, then failed to keep pace. Total yields from vines on 101-14 and du Lot in the fifth to seventh seasons were twice the yields of the ungrafted, and differences in growth appear to be increasing. Because of better growth habit and higher nematode resistance 101-14 is preferred to du Lot.

Effects of soil types and Meloidogyne hapla on the multi-purpose uses of arugula (Eruca sativa)

Nematology ◽  
2010 ◽  
Vol 12 (1) ◽  
pp. 115-120 ◽  
Author(s):  
Haddish Melakeberhan ◽  
Alexandra Kravchenko ◽  
Jon Dahl ◽  
Darryl Warncke
Keyword(s):  
Crop Production ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Soil Types ◽  
Meloidogyne Hapla ◽  
Eruca Sativa ◽  
Root Knot Nematode ◽  
Trap Crop ◽  
Dead End ◽  
Loam Soil

AbstractDeveloping multi-purpose alternatives to synthetic nematicides for managing the northern root-knot nematode, Meloidogyne hapla, a problem in a variety of temperate vegetable and nursery crop production soils, continues to be challenging. Arugula (Eruca sativa), a high-end green vegetable crop with biofumigant and cover crop attributes, is an effective trap crop (dead-end host) for populations of M. hapla in sandy loam soil. Exploiting arugula's multi-purpose attributes, however, depends on understanding its interaction with M. hapla under a range of conditions. The objectives of this study were to determine if soil types affect: i) the ability of M. hapla to infect arugula; and ii) if M. hapla infection has any effect on arugula's vegetative quality in the respective soils. When 2-week-old arugula cv. Roquette seedlings were inoculated with either 0 (control), 4000 or 8000 M. hapla eggs per 300 cm3 of either sandy, sandy loam or muck soil, and maintained for 23 and 24 days (28±2°C), more nematodes were recovered from sandy loam soil. However, the numbers of nematodes recovered between the inocula were similar in the three soil types and nematode infection had no effect on plant growth or nutritional quality. However, the growth and leaf nutritional quantity of arugula were significantly affected by soil type. The results support the hypothesis that M. hapla will infect arugula in different soil types without affecting its vegetative quantity and quality, providing the basis for testing arugula's trap, vegetable and, possibly, biofumigant attributes from one seeding in fields where M. hapla exists.

scholarly journals Rhizobacteria cooperative effect against Meloidogyne javanica in rhizosphere of legume seedlings

2017 ◽  
Vol 10 (1) ◽  
pp. 25-34 ◽  
Author(s):  
F.-S. Tabatabaei ◽  
A. Saeedizadeh
Keyword(s):  
Host Plants ◽  
Rhizobium Leguminosarum ◽  
Sandy Loam ◽  
Meloidogyne Javanica ◽  
Cooperative Effect ◽  
Root Knot Nematode ◽  
Growth Properties ◽  
Loam Soil ◽  
Reproduction Factor ◽  
Bacterial Effect

SummaryRoot-knot nematodes are major pests of legume fields in Iran. This research evaluated the effect ofRhizobium leguminosarumbv.phaseoliandPseudomonas fluorescensCHA0 (stand alone and combination treatment) on galling and reproduction of root-knot nematode,Meloidogyne javanica,in legum (chickpea, bean, lentil, pea) seedling rhizosphere, and the growth properties of the host plants. The legumes seeds were sown in 1kg sterilized sandy loam soil. Inocula were 5 J2/g of soil, in the case of the nematode, while considering the bacteria 1×107cfu/kg soil. A treatment of nematicide (cadusafos) was performed, as a commonly used nematicide in Iran, at 2g/kg soil. Two months after inoculation, the following parameters were recorded: the number of knots, egg masses and reproduction factor of the nematode, bacterial nodules per root, and growth properties of seedlings in the treatments (control, nematode, nematode+nematicide, and nematode+rhizobacteria). The greatest bacterial effect on the control of the nematode was observed in the rhizosphere of the bean treatments. Inoculation withRhizobiumin the soil decreased the galling on the legumes’ roots, and the combined inoculation withPseudomonasandRhizobiumresulted in a higher decrease of the galling.

Survival and reproduction of Meloidogyne incognita on tomato as affected by humic acid

Nematology ◽  
2008 ◽  
Vol 10 (2) ◽  
pp. 243-249 ◽  
Author(s):  
Mona Al-Shalaby ◽  
Hosny Kesba
Keyword(s):  
Humic Acid ◽  
Meloidogyne Incognita ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Root Knot Nematode ◽  
Final Population ◽  
Loam Soil ◽  
Micro Elements

AbstractThe commercial products humic acid (Actosol®), humic acid (Actosol®) + NPK and humic acid (Actosol®) + micro-elements (Fe, Mn, Cu) were tested against the root-knot nematode, Meloidogyne incognita, in vitro and in vivo on tomato and compared with the nematicide, Vydate. In vitro, Vydate at 2 ml l–1 water was the best treatment for inhibiting hatch (30.8% inhibition) and was significantly more effective than all other treatments, except Vydate at 4 ml l–1. Humic acid + micro-elements (2 ml l–1 water) was the least effective treatment for inhibiting hatch. Humic acid supplemented with micro-elements was significantly better than other products in reducing the number of surviving juveniles and achieving the highest percentage of nematode inhibition (49.2%), followed by the two concentrations of Vydate, which were not significantly different from one another. In vivo, all treatments significantly reduced the numbers of galls, embedded stages in roots, final population and population build-up (Pf/Pi) in all types of soil as compared to the untreated control. Materials appeared to be more effective at preventing nematode penetration of roots in sandy loam soil than in the other two soil types (sandy and clay). The double application of humic acid + NPK gave the best plant growth (fresh and dry weights) in sandy loam soil. All treatments reduced plant content of NPK in sandy soil except for humic acid + micro-elements and the two doses of Vydate.

Emissions of nitrous oxide and nitric oxide associated with the decomposition of arable crop residues on a sandy loam soil in Eastern England

Agronomie ◽  
2002 ◽  
Vol 22 (7-8) ◽  
pp. 731-738 ◽  
Author(s):  
Roland Harrison ◽  
Sharon Ellis ◽  
Roy Cross ◽  
James Harrison Hodgson
Keyword(s):  
Nitric Oxide ◽  
Nitrous Oxide ◽  
Crop Residues ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Arable Crop ◽  
Loam Soil

INFLUENCE OF UNCONVENTIONAL FERTILIZERS ON MICROBIOLOGICAL ACTIVITY OF SODDY-PODZOLY SANDY SOIL

2020 ◽  
Vol 18 (4) ◽  
pp. 84-87
Author(s):  
Yu.V. Leonova ◽  
◽  
T.A. Spasskaya ◽  
Keyword(s):  
Sewage Sludge ◽  
Sandy Soil ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Microbiological Activity ◽  
Coffee Waste ◽  
Loam Soil

The change in the microbiological activity of sod-podzolic sandy loam soil when using coffee waste and sewage sludge as a fertilizer for oats in comparison with traditional fertilizers is considered. During the study, it was determined that the predominant groups were bacteria and actinomycetes. Bacilli and fungi are few in number. The introduction of sewage sludge and coffee waste into the sod-podzolic sandy loam soil at a dose of 10 t / ha increases the activity of the microflora of the sod-podzolic sandy loam soil, which increases the effective and potential fertility.

Chloride and Lithium Transport in Large Arrays of Undisturbed Silt Loam and Sandy Loam Soil Columns

2004 ◽  
Vol 3 (1) ◽  
pp. 316
Author(s):  
M. Saleem Akhtar ◽  
Tammo S. Steenhuis ◽  
Brian K. Richards ◽  
Murray B. McBride
Keyword(s):  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Silt Loam ◽  
Soil Columns ◽  
Lithium Transport ◽  
Loam Soil

scholarly journals A Modified Pressure–Sinkage Model for Studying the Effect of a Hard Layer in Sandy Loam Soil

2021 ◽  
Vol 11 (12) ◽  
pp. 5499
Author(s):  
Nihal D. Salman ◽  
György Pillinger ◽  
Muammel M. Hanon ◽  
Péter Kiss
Keyword(s):  
Bearing Capacity ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
High Fidelity ◽  
Load Bearing Capacity ◽  
Soil Thickness ◽  
Load Bearing ◽  
Hard Layer ◽  
Loam Soil ◽  
New Perspective

The applicability of the typical pressure–sinkage models used to characterize the soil’s bearing properties is limited to homogeneous soils (infinite thickness) that have no hard layer. At a given depth, a hard layer can have a considerable impact on the soil’s load-bearing capacity. It is thus necessary to alter the pressure–sinkage equation by taking this condition into account when assessing the load-bearing capacity. The present paper aims to determine a simple, high-fidelity model, in terms of soil characterization, that can account for the hard layer affection. To assess hard layer affection in this paper, a plate sinkage test (bevameter) was conducted on sandy loam soil. To this end, the soil was prepared by considering three bulk densities and two soil thickness levels at 7–9% moisture content levels. According to the results, this paper put forth a new perspective and related equations for characterizing bearing performance. The sinkage modulus (k) is an intrinsic soil parameter that has a determined unit of N/cm2 and is significant for managing the bearing performance. The results showed that the new modulus sinkage model incorporates the main factor of the rigid layer effect involving high fidelity that the conventional models have failed to account for.

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