Initial Population Density and its Effect on the Pathogenic Potential and Population Growth of the Root Knot Nematode Meloidogyne incognita in Four Species of Cucurbits

Chandra, Puran; Sao, R.; Gautam, Surendra Kumar; Poddar, Aditi Niyogi

doi:10.3923/ajppaj.2010.1.15

Cited by 32 publications

(15 citation statements)

References 6 publications

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“…In Ramna, these components were suitable and hence for better growth, while at MIT it was not suitable so poor growth of the different stages of Nematodes, Meloidogyne incognita. Present findings corroborate with the findings of Chandra et al, (2010), Tamil Selvi et al, (2013, Tamil selvi et al, (2017) respectively.…”

Section: Resultssupporting

confidence: 92%

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SURVEY OF ROOT KNOT DISEASE OF SPONGE GOURD (Luffa cylindrica) AT MUZAFFARPUR IN CITY AREAS

Fatma¹,

Singh²

2020

Indian Journal of Scientific Research

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Root knot disease is caused by plant parasitic nematodes. In the present study, four areas of Muzaffarpur town were selected where sponge gourd and is being cultivated at small scale. These areas were visited from July to October. It was noted that plants were healthy and fruits were normal up to August. However, in September, Chlorotic patches were seen on the leaves of above vegetable crops. This became more prominent in October. It was further noted that the leaf size was reduced, the newer leaves were bunched, flowering was reduced and fruits were deformed. Fruit set was completely abnormal. Deformed fruits were present and growth of the new branches was retarded. The roots of these plants had galls however; they were 8-10 in number per plant. In Octobers the number of galls, and size increased. Entire roots were deformed due to gall formation. Certain gall just near the surface of soil was corky and larger in shape. Such roots were carefully collected and their number per plants, size etc. were studied in different localities. All such roots as well as soil taken from the rhizosphere was used for the isolation of the parasite. Slides were prepared and based on the microscopic study and number the nematode was identified. Gall formation varied in different localities of the town. Where repeated cultivation of these vegetables were done and the land had continuous source of water from the surrounding buildings revealed maximum galls per plants. However, where plantation was not regular and field was dry, the number and size of galls were much lower. It was observed that the frequency of galls were much lower in the area where there was no source of sewage. Eco-friendly, non synthetic chemical, means of control measure have been suggested. Here field sanitation, plaughing during summer, crop rotation with non host, organic amendment co-cultivation of plants having antagonistic effect on nematodes, trap crops etc. were advised. Some of the farmers followed these and in next year there was reduction in the disease incident.

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Section: Resultssupporting

confidence: 92%

“…Now phytonematodes are considered as one of the major pests of high valued agricultural crops. The degree of damage done depends upon the pathogenic potential and population growth of nematodes which are greatly influenced by their initial population densities and climatic conditions (Chandra et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

SURVEY OF ROOT KNOT DISEASE OF SPONGE GOURD (Luffa cylindrica) AT MUZAFFARPUR IN CITY AREAS

Fatma¹,

Singh²

2020

Indian Journal of Scientific Research

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“…Dasgupta et al, (1981), Tayal and Agarwal (1982), Ganguly and Dasgupta (1983), Swain & Prasad (1988), Mohanty and Pathak (1990), Nagesh et al, (1998), Chakrabory and Mishra (2002), Devrajan and Rajendra (2002), Mohammad and Hasab (2005), Mishra and Mohanty (2007), Rani et al, (2008), Nayak and Mohanty (2010), Chaudhary et al, (2013), , Nikoo et al, (2014), Ramchandra et al, (2015), Nayak and Pandey (2016), Nayak et al, (2016), Mahapatra and Nayak (2019). Similarly, loss in yield and population density have been studied by Jan et al, (2007), Chandra et al, (2010), Khan et al, (2012), Singh et al, (2012), Anwar et al, (2013), Singh and Kumar (2013), and Pungalendhi and Thiruvengadan (2016). In the present study selected biochemical changes in the infected and healthy plants of bitter gourd have been studied.…”

Section: Root Knot Disease Of Cucurbits Includingmentioning

confidence: 89%

Study of Selected Biochemical and Physiological Changes Among the Infected by Root Knot Nematode and Healthy Plants of Bitter Gourd in Four Localities at Muzaffarpur

Ruchi¹,

Singh²

2020

Indian Journal of Scientific Research

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Plants have developed certain mechanisms to protect themselves from the pathogens. This pathogen after infection destroys or disturbs the synthesis of such chemicals. Among the resistant species these are not affected but in sensitive they are influenced by this pathogen. Present study was aimed to analyse the chlorophyll contents of the leaves, the sugars of the roots & stem, the phenylalanine ammonia lysate and peroxidase activities among the healthy and infected by root knot disease causing nematode, Meloidogyne incognita. It was noted that both chlorophyll-a and b, were influenced in the infected plants. Further maximum percentage of decrease in chlorophyll-a was found among the infected plants collected from Krishnapuri area, while maximum chlorophyll-b decreased among the plants collected from Professor Colony of the town. It was further observed that the sugar contents increased it he roots, while it decreased among the shoots. Maximum decrease-60.77 was noted among the plants collected from Krishnapuri area, while it was minimum among the plants collected form Professor Colony (-48.45). Activity of phenylalanine ammonia lyaste revealed maximum gain 48.95 among the plants collected form Nayatola area, where as it was the minimum 21.83 among the plants collected from Krishnapuri. Peroxidase enzyme activity was also studied. Here maximum increase 45.41% was noted among the infected plants collected form Krishnapuri, followed by 43.23% among the plants collected from Professor Colony.

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“…The genus Meloidogyne attacks nearly every crop and has been reported to cause an annual loss of Rs. 547.5 million in Cucurbits (Jain et al, 2007;Chandra et al, 2010). There are three common species: Meloidogyne incognita, Meloidogyne javanica and Meloidogyne arenaria, among which M. incognita is widespread in the tropics and subtropics (Sasser, 1979).…”

Section: Introductionmentioning

confidence: 99%

Status of root-knot nematode (Meloidogyne species) disease in vegetable crops of some districts of central plain region of Chhattisgarh State, India

Gautam¹,

Sahu²,

Verma³

et al. 2014

Afr. J. Microbiol. Res.

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The root-knot nematodes (Meloidogyne species) are economically important pathogens, especially infesting vegetable crops. In the tropics and subtropics, Meloidogyne incognita causes an estimated yield loss of 5 to 43% in vegetable crops. In the present study, root-knot nematode disease was surveyed in various vegetable crops in the central plain region of Chhattisgarh State. Roots and rhizosphere soil samples were collected from 44 farmlands representing five districts of Chhattisgarh during mid cropping season. Nematodes were extracted by Cobb's sieving and decanting method, followed by modified Baermann's funnel technique. Out of 44 samples, 24 showed the root-knot nematodes infection with an overall incidence of 54.54%. The percent incidences of disease ranged between 30 and 80% in five districts. Out of 13 species of vegetable crops surveyed, nine were observed to be infected. The most frequently occurring species was Meloidogyne incognita (63.33%), followed by Meloidogyne arenaria (20%) and Meloidogyne javanica (16.67%). Maximum frequency was observed in Lageneria siceraria (100%), and least was Musa paradisiaca, Daucus carota and Amaranthus tristis (50%). The mean population density of 2 nd stage nematodes ranged between 766 and 9076 nematodes/200 cc soil and 10 g roots in samples.

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Initial Population Density and its Effect on the Pathogenic Potential and Population Growth of the Root Knot Nematode Meloidogyne incognita in Four Species of Cucurbits

Cited by 32 publications

References 6 publications

SURVEY OF ROOT KNOT DISEASE OF SPONGE GOURD (Luffa cylindrica) AT MUZAFFARPUR IN CITY AREAS

SURVEY OF ROOT KNOT DISEASE OF SPONGE GOURD (Luffa cylindrica) AT MUZAFFARPUR IN CITY AREAS

Study of Selected Biochemical and Physiological Changes Among the Infected by Root Knot Nematode and Healthy Plants of Bitter Gourd in Four Localities at Muzaffarpur

Status of root-knot nematode (Meloidogyne species) disease in vegetable crops of some districts of central plain region of Chhattisgarh State, India

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