RESISTANCE TO ROOT-KNOT NEMATODE, Meloidogyne incognita IN SOME CUCUMBER (Cucumis sativus, L.) INBRED LINES AND THEIR HYBRIDS

Screen-house and field experiments were carried out to evaluate and compare the activities of Root grow (mycorrhiza fungi) and broiler droppings (singly and both) on root-knot nematode, Meloidogyne incognita infecting Cucumber, Cucumis sativus (L). The experiment was designed as a 2 by 5 factorial fitted into a Complete Randomised Design (CRD) and Randomized Complete Block Design (RCBD) for screen house and field experiments respectively. Two levels each of the two treatments were evaluated both in the screen house and on the field. Root-grow (mycorrhiza fungi) was evaluated at the rate of 0.5 g and 1.0 g while broiler droppings were evaluated at the rate of 50 g and 100 g. The effects of treatments on vegetative growth as well as nematode damage and population were determined both in the screen house and on the field. All data collected were subjected to Analysis of Variance (ANOVA) and where treatment means were significant, multiple comparisons of treatments were done using Tukey’s honesty significant difference at a 5 % level of significance. Broiler droppings at 100 g and 50 g were more effective in controlling nematode than the two levels of Root grow (mycorrhiza fungi). Plant growth was best with broiler droppings at 100 g followed by broiler droppings at 50 g. Nematode population was reduced in all plant treated and were less galled compared with the control. The results showed that broiler droppings and mycorrhiza fungi can be used in controlling root-knot nematode Meloidogyne incognita on cucumber

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General Performance, Heterosis and Potence Ratio for Some Important Characters Using Complete Diallel Cross among Five Inbred Lines of Cucumber (Cucumis sativus, L.) under Greenhouse Conditions

Journal of the Advances in Agricultural Researches ◽

10.21608/jalexu.2020.161569 ◽

2020 ◽

Vol 25 (4) ◽

pp. 364-378

Author(s):

Doaa Abo Arab ◽

Aly Ebido ◽

Mahmoud Aly ◽

Mahmoud Wahb-Allah ◽

Ahmed Bayoumy

Keyword(s):

Cucumis Sativus ◽

Diallel Cross ◽

Inbred Lines ◽

Cucumis Sativus L ◽

General Performance ◽

Complete Diallel Cross

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Screening of cucumber (Cucumis sativus L.) cultivars against southern root knot nematode, Meloidogyne incognita (Kofoid and White) Chitwood

Bangladesh Journal of Botany ◽

10.3329/bjb.v49i3.49642 ◽

2020 ◽

Vol 49 (3) ◽

pp. 579-584

Author(s):

Ifra Siddique ◽

Ishrat Naz ◽

Raja Asad Ali Khan ◽

Musharaf Ahmed ◽

Syeda Maryam Hussain

Keyword(s):

Population Density ◽

Meloidogyne Incognita ◽

Growth Parameters ◽

High Population Density ◽

In Planta ◽

Root Knot Nematode ◽

Cucumis Sativus L ◽

Southern Root Knot Nematode ◽

Moderately Resistant ◽

Significant Mortality

Fourteen cultivars of cucumber were screened for their resistance to the Southern root-knot nematode, Meloidogyne incognita (Kofoid and White) Chitwood in an in planta experiment. The pots were maintained in greenhouse with CRD for 50 days after inoculation. The cultivar DS92-05 induced significant mortality and was rated “moderately resistant (MR)”. This cultivar showed increase in plant growth parameters including vine length. The cultivars DS92-06, Laghman, Sultan and Desitype were moderately susceptible (MS). The cultivar Rehan and DS96-299 were rated susceptible (S) whereas DS97-299, Chaiya, Beitalpha, Alto, DS92-04 and Local were rated as highly susceptible (HS). DS92-05 is thus promising for sustainable agriculture, specially in those areas with high population density of Southern Root knot nematode.

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Estimation of avoidable losses caused by Meloidogyne incognita infecting cucumber in poly-house

Journal of Agriculture and Applied Biology ◽

10.11594/jaab.02.01.05 ◽

2021 ◽

Vol 2 (1) ◽

pp. 35-40

Author(s):

Shakti Singh Bhati ◽

B. L. Baheti

Keyword(s):

Meloidogyne Incognita ◽

Agricultural Land ◽

Egg Mass ◽

Root Knot Nematode ◽

Cucumis Sativus L ◽

Continuous Increase ◽

Daily Diet ◽

Protected Cultivation ◽

Meloidogyne Spp ◽

Present Trial

Cucumber (Cucumis sativus L.) is a high nutritious and mineral-rich vegetable, which occupies a prominent place as a salad and vegeta-ble. It is being used in many ways in the daily diet of humans and widely cultivated worldwide. The decrease of agricultural land, ad-verse environmental conditions and continuous increase of popula-tion, the demand of nutritious food is a matter of great concern to the world. Protected cultivation is a very effective tool to solve this problem because in this cultivation the productivity of crops is very high as compared to open field conditions. High value crops suc-cessfully grown in protected cultivation, specially vegetables (cu-cumber, tomato, Capsicum etc.) which are highly susceptible to the numerous pests and pathogens, including phyto-parasitic nema-todes (specially root-knot nematode, Meloidogyne spp.). With this view, present trial was taken to estimate the avoidable losses caused by Meloidogyne incognita infecting cucumber in poly-house situated on farmer’s field with the application of phorate at 2 kg a.i. ha-1 over check. Results exhibited that application of chemical treatment significantly reduced number of galls per 5 g roots, egg masses per 5 g roots, eggs & juveniles per egg mass and final nema-tode population 79.03, 81.10, 30.91 and 56.54%, respectively. Avoidable yield losses were recorded to the tune of 66.84% on cu-cumber by M. incognita in poly-house.

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