Evaluation of Four Tomato Genotypes Resistance to Root-Knot Nematode

2018 ◽  
Vol 3 (1) ◽  
pp. 53-57
Author(s):  
Nask Mohamad Faraj ◽  
Rebin A. Qadir
Keyword(s):  
Statistical Analysis ◽  
Environmental Pollution ◽  
Meloidogyne Incognita ◽  
Human Life ◽  
Block Design ◽  
Root Knot Nematode ◽  
Tomato Production ◽  
Randomized Complete Block Design ◽  
Tomato Cultivars ◽  
Tomato Genotypes

The root-knot nematode incited by Meloidogyne incognita is one of the top diseases affecting tomato production worldwide. Nematicides can be effectively used to control the disease, but is costly and harmful to human life and environmental pollution. Alternatively resistant cultivars can be used inexpensive and eco-friendly.  Resistance evaluation of five tomato cultivars (Red Rock, King Rock, Presto F1, Super Queen and Super Regina) were tested using randomized complete block design with five replications and three nematode inoculums (0, 500 and 1500 egg/second juvenile per pot). The statistical analysis gave significant differences among the genotypes, nematode densities level with their interactions. Among genotypes, Red Rock recorded significantly highest plant height (57.0) cm, Presto F1 (37.8) cm, King Rock (35.2) cm, Super Regina (30.1) cm and Super queen showed lowest (25.4) cm. As an alternative for managing the nematodes, further experiments are required in the field for applying plant resistances.

scholarly journals Evaluation of Nematicidal Activity of Fluensulfone against Meloidogyne incognita in Bell Pepper Crop

2020 ◽  
pp. 52-59
Author(s):  
José Alonso Calvo- Araya ◽  
Nery Zapata- Montes
Keyword(s):  
Meloidogyne Incognita ◽  
Block Design ◽  
Nematicidal Activity ◽  
Bell Pepper ◽  
Single Application ◽  
Root Knot Nematode ◽  
Horticultural Crops ◽  
Final Population ◽  
Randomized Complete Block Design ◽  
Set Up

The evaluation of nematicidal activity of the non- fumigant nematicide (fluensulfone) was evaluated for the control of the root-knot nematode Meloidogyne incognita in bell pepper crop (Capsicum annuum L.) under field conditions. The experiment was set up under a randomized complete block design with four replications. Six treatments were assessed for control of M. incognita: four doses of fluensulfone, one of the nematicide oxamyl and a control without application of nematicides. Ten days before transplanting, nematicides were applied in a single application via irrigation systems. The lowest final population densities of M. incognita in bell pepper crop were recorded in plots treated with fluensulfone at the dose of 2.75 L.ha-1, with an average of 25 juveniles. The higher percentage of efficacy was obtained with the application of fluensulfone at a dose of 2.75 L.ha-1. Fluensulfone showed a more efficient nematicidal activity as compared with oxamyl, which is the most used nematicide in horticultural crops in Mexico. Our results indicated that fluensulfone can be used as an alternative nematicide for the control of M. incognita in horticultural crops.

scholarly journals Potency of plant-derived biological nematicides on root-knot disease of tomato, Lycopersicon lycopersicum (L.) Mill

2021 ◽  
Vol 7 (1) ◽  
pp. 1-5
Author(s):  
Olabiyi T.I
Keyword(s):  
Block Design ◽  
Water Extract ◽  
Growth And Yield ◽  
Root Knot Nematode ◽  
Tomato Root ◽  
Tomato Production ◽  
University Of Technology ◽  
Randomized Complete Block Design ◽  
Lycopersicon Lycopersicum ◽  
Experimental Plots

The aim of this research was to evaluate the effectiveness of plant-derived biological nematicides in the management of root-knot nematode disease of tomato. A piece of land measuring 8 m × 54 m was ploughed and raised beds were the experimental plots. The land was divided into 4 blocks, each block comprising 12 treatments and 4 replicates with a total of 48 experimental plots were fitted into randomized complete block design (RCBD). The experiment was carried out at the Teaching and Research Farms, Faculty of Agricultural Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria (Longitude 40E and Latitude 8010N) during 2018 planting season. 20 g macerated root gall of Celosia was applied to tomato root rhizosphere (inoculation). The plant-derived biological nematicides that were assessed on root-knot nematode disease of tomato, UC8 cultivar, include the leaf water extract of neem, castor, wild sunflower, cleome, siam weed, phyllanthus, nitta, tobacco, lantana and calotropis, mixed with black soap, at rate of 9:1 v/w. The black soap and distilled water served as adjuvant and solvent respectively, and as the control experiments. The results showed that the root galling and soil population of root-knot nematode were significantly reduced with consequent enhanced growth and yield of tomato in the plots treated with plant-derived biological nematicides, compared with the tomato in the control experiments. The study has demonstrated that the use of plant-derived biological nematicides can be effectively explored in the management of root-knot nematode disease. The application of plant-derived biological nematicides is therefore recommended for sustainable management of root-knot nematode disease in tomato production.

scholarly journals Genetic parameters of resistance to Meloidogyne incognita in melon

2017 ◽  
Vol 47 (5) ◽  
Author(s):  
Willame dos Santos Candido ◽  
Renata Castoldi ◽  
Lucas da Silva Santos ◽  
Dora Enith Tobar-Tosse ◽  
Pedro Luiz Martins Soares ◽  
...  
Keyword(s):  
Meloidogyne Incognita ◽  
Genetic Parameters ◽  
Block Design ◽  
Root Knot Nematode ◽  
Chi Square ◽  
Nematode Reproduction ◽  
Randomized Complete Block Design ◽  
Chi Square Test ◽  
Reproduction Factor ◽  
Six Genes

ABSTRACT: In order to assess the genetic control of resistance in the melon ‘Gaúcho Redondo’ to the root-knot nematode Meloidogyne incognita, an experiment was conducted in a randomized complete block design with three blocks and six treatments using the parental lines ‘Gaúcho Redondo’ (P1 resistant) and JAB 20 (P2 susceptible), as well as F1, F2, and backcross generations (RC1P1 and RC1P2). Seventy days after inoculation, individual plants were evaluated for resistance using the nematode reproduction factor (RF). The hypothesis of monogenic inheritance was rejected by the chi-square test (χ2), and results indicated that resistance is controlled by more than one gene locus, as confirmed by the quantitative analysis that revealed the presence of six genes.

scholarly journals A Novel Nematicide for the Control of Root-Knot Nematodes in Tomato Crop

2017 ◽  
Vol 6 (2) ◽  
pp. 35-40
Author(s):  
José A. Calvo-Araya
Keyword(s):  
Meloidogyne Incognita ◽  
Irrigation System ◽  
Block Design ◽  
Single Application ◽  
Root Knot Nematode ◽  
Tomato Crop ◽  
Solanum Lycopersicum L ◽  
Final Population ◽  
Randomized Complete Block Design ◽  
Set Up

A novel nematicide (fluensulfone) was evaluated for control of the root-knot nematode Meloidogyne incognita in tomato crop (Solanum lycopersicum L.) under field conditions. The experiment was set up in a randomized complete block design with four replicates. Six treatments were assessed for control of M. incognita: four doses of fluensulfone, one dose of the nematicide oxamyl, and a control with no application of nematicides. Ten days before transplanting, nematicides were applied in a single application via an irrigation system. The lowest final population densities of M. incognita in tomato crop were recorded in plots treated with fluensulfone at the dose of 2.75 L·ha-1, with an average of 26 juveniles. The higher percentage of efficacy was obtained with the application of fluensulfone at a dose of 2.5 L·ha-1. Fluensulfone exerted a more efficient nematicidal activity as compared with oxamyl, which is the most used nematicide in crops in Mexico. Our results indicated that fluensulfone can be used as an alternative nematicide for the control of M. incognita in tomato crop and other crops.

scholarly journals Use of a Resistant Pepper as a Rotational Crop to Manage Southern Root-knot Nematode

HortScience ◽  
1998 ◽  
Vol 33 (4) ◽  
pp. 716-718 ◽  
Author(s):  
J.A. Thies ◽  
J.D. Mueller ◽  
R.L. Fery
Keyword(s):  
Meloidogyne Incognita ◽  
Block Design ◽  
Root Knot Nematode ◽  
Experimental Site ◽  
Previous Crop ◽  
Randomized Complete Block Design ◽  
The Mean ◽  
Rotational Crop ◽  
Rotation Crop ◽  
Southern Root Knot Nematode

A 3-year field study was conducted at Blackville, S.C., to evaluate the potential of using resistant pepper (Capsicum annuum L.) cultivars as a rotation crop for managing the southern root-knot nematode [Meloidogyne incognita (Kofoid and White) Chitwood]. The experiment was a split-plot with main plots arranged in a randomized complete-block design. In 1993, the entire experimental site was infested with M. incognita by inoculating a planting of susceptible PA-136 cayenne pepper with eggs of M. incognita race 3. In 1994, the main plots were planted to either highly resistant `Carolina Cayenne' or its susceptible sibling line PA-136. In 1995, `Carolina Cayenne' and the susceptible bell cultivars California Wonder and Keystone Resistant Giant were grown as subplots in each of the original main plots. `Carolina Cayenne' plants were unaffected by the previous crop. Previous cropping history, however, had a significant impact on the performance of the bell cultivars; the mean galling response was less (P < 0.01) and the yield was 2.8 times greater (P < 0.01) in the main plots previously cropped with `Carolina Cayenne' than in those previously cropped with PA-136. These results suggest that resistant pepper cultivars have considerable merit as a rotation crop for managing M. incognita infestations in soils used for growing high-value vegetables.

scholarly journals Performance of fresh market tomato (Solanum lycopersicum Mill) lines as influenced by pruning

2017 ◽  
pp. 108-115
Author(s):  
Nelda Gonzaga ◽  
Apolinario Gonzaga ◽  
Sarah Lyn Pepito ◽  
Gordon Rogers
Keyword(s):  
Block Design ◽  
The Philippines ◽  
Fresh Market ◽  
Tomato Production ◽  
Tomato Yield ◽  
Randomized Complete Block Design ◽  
Check Variety ◽  
And Performance ◽  
Leaf Curl Virus ◽  
Tomato Genotypes

Tomato production in the Philippines is dominated by conventional farmers who do not practice pruning. Currently, rampant occurrence of diseases almost wiped out the industry and availability of resistant seeds became a problem however several studies reported that pruning lessened diseases and enhanced yield. The study aimed to evaluate the effect of pruning on the performance of different fresh market tomato genotypes. The experiment was laid out in factorial design using Randomized Complete Block Design with pruning as Factor A and tomato genotypes as Factor B with Harabas (Harabas Rescuer 746) as control. Pruning obtained thicker stem and 18% higher fruit set, reduced Tomato Yellow Leaf Curl Virus and increased tomato yield by producing a higher number of marketable fruits. AVTO 1173 produced the heaviest and largest fruits with the least TYLCV. Pruning is a beneficial practice that farmers could adopt, along with AVTO 1173 as a substitute for the Harabas, check variety. Additional trials of AVTO 1173 should be conducted in different locations to further verify its adaptability and performance in other situations.

Phenotypic and genotypic characterization of tomato genotypes for resistance to root-knot nematode, Meloidogyne incognita

2020 ◽  
Vol 100 (1) ◽  
pp. 28
Author(s):  
Anupam ◽  
Narpinderjeet Kaur Dhillon ◽  
Sukhjeet Kaur ◽  
Salesh Kumar Jindal ◽  
Harwinder Singh Buttar
Keyword(s):  
Meloidogyne Incognita ◽  
Root Knot Nematode ◽  
Genotypic Characterization ◽  
Tomato Genotypes ◽  
Phenotypic And Genotypic Characterization

scholarly journals Performance evaluation of early maize genotypes in far western hills of Nepal

2015 ◽  
Vol 1 (1) ◽  
pp. 106-111
Author(s):  
Hari Kumar Prasai ◽  
Ujjawal Kumar Singh Kushwaha ◽  
Bishnu Prasad Joshi ◽  
Jiban Shrestha
Keyword(s):  
Performance Evaluation ◽  
Statistical Analysis ◽  
Research And Development ◽  
Agricultural Research ◽  
Block Design ◽  
Initial Evaluation ◽  
Research Station ◽  
Maize Genotypes ◽  
Randomized Complete Block Design ◽  
Evaluation Trial

Initial evaluation trial of maize (early) genotypes was carried out at Regional Agricultural Research Station, Doti, Nepal in 2013 and 2014. Total fourteen and fifteen genotypes of early maize were included in initial evaluation experiment of the year 2013 and 2014 respectively. The experiment was laid out in randomized complete block design (RCBD) with three replications in each year. Out of the tested genotypes, SO3TEY/LN, ZM 423 and SO3TEY-FM (ER) identified as promising from statistical analysis over year. All the tested characters were found statistically significant. Similarly, the coordinated varietal trial of maize (early) was also carried out in the same station at 2013 and 2014. Total fourteen genotypes in 2013 and fifteen genotypes in 2015 of maize (early) were included in the experiment. The RCB design was applied and the experiment was replicated three times in every year. ZM 627 and ZM 621/Pool -15 genotypes identified as superior next to Arun-2 from the analysis of two year data. All the tested traits were found statistically significant in over year analysis.Journal of Maize Research and Development (2015) 1(1):106-111DOI: http://dx.doi.org/10.5281/zenodo.34291

scholarly journals Estimation of heterosis for yield and yield attributing traits in tomato crossed with line and tester method

2019 ◽  
Vol 30 (2) ◽  
pp. 179-185
Author(s):  
S Rehana ◽  
MZ Ullah ◽  
N Zeba ◽  
N Narzis ◽  
A Husna ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Analysis Of Variance ◽  
Block Design ◽  
Winter Season ◽  
Fruit Weight ◽  
Experimental Field ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Tomato Genotypes

This study was conducted to estimate heterosis for the yield and yield contributing traits of 32 cross combinations involving 12 diverse lines of some Bangladeshi tomato genotypes considering line x tester mating fashion at the experimental field of Sher-e-Bangla Agricultural University, Dhaka in 2016-2017 and 2017-2018 winter season. The experiment was designed in a Randomized Complete Block Design (RCBD) with three replications. The analysis of variance (ANOVA) showed highly significant difference for all the characters suggesting the presence of genetic variability among the studied materials. Four cross combinations (L1xT1, L3xT2, L3xT3, L5xT1) showed desirable negative significant heterosis for days to first flowering in both relative heterosis (RH) and heterobeltiosis (HB) ranged from -2.56% to -19.05%, respectively. Highest positive significant heterosis in both RH and HB was observed in four crosses L4xT4 (63.48% and 48.25%), L5xT2 (46.77% and 46.27%), L5xT4 (62.58% and 34.78%) and L8xT3 (37.39% and 35.12%) for individual fruit weight (g), while six crosses L1xT2, L1xT4, L3xT2, L4xT4, L5xT4 and L6xT1 exhibited highest positive significant heterosis for yield per plant (kg) in both HB and RH ranged from 16.09% to 88.46% respectively. Heterotic hybrids with maximum number of studied desirable yield contributing traits (8) of both RH and HB were identified only two crosses L1xT2 and L4xT4. Progressive Agriculture 30 (2): 179-185, 2019

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