Host status of progenies of yellow passion fruit to Meloidogyne incognita race 2

The host status of eighteen progenies (CRP 01-12 to CRP 16-12, CRP 19-12 and CRP 20-12) and two cultivars (FB 200 Yellow Master and FB 300 Araguari) of yellow passion fruit to Meloidogyne incognita race 2 was evaluated in a greenhouse experiment. The height and the biomass of the plants, besides the...

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Bibliographic Details
Published in:Crop breeding and applied biotechnology 2016-06, Vol.16 (2), p.153-157
Main Authors: Nascimento, Roxana Stefane Mendes, Lopes, Everaldo Antônio, Santos, Carlos Eduardo Magalhães dos, Magalhães, Viviane Manuela Bernardes Silva, Cardoso, José Avelino
Format: Article
Language:English
Subjects:
AGRONOMY
Biomass
BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Cultivars
Cultivation
Eggs
Fruits
Galls
Genotypes
Meloidogyne incognita
Passiflora edulis
Passion fruit
Plants (botany)
Plastics
Race
resistance
Root-knot nematode
Tomatoes
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Summary:The host status of eighteen progenies (CRP 01-12 to CRP 16-12, CRP 19-12 and CRP 20-12) and two cultivars (FB 200 Yellow Master and FB 300 Araguari) of yellow passion fruit to Meloidogyne incognita race 2 was evaluated in a greenhouse experiment. The height and the biomass of the plants, besides the numbers of galls, eggs and second-stage juveniles in roots and soil were assessed after 70 days of cultivation of the genotypes and tomato (control) in plastic pots with 2 kg of soil infested with 5,000 eggs of the nematode. The reproduction factor of the pathogen (RF = Final population/Initial population) was calculated for classifying the genotypes as immune (RF = 0), resistant (RF < 1) or susceptible (RF ≥ 1). The cultivar FB 200 is resistant to M. incognita race 2 and can be cultivated in areas infested with this nematode.
ISSN:1984-7033
1518-7853
1984-7033
DOI:10.1590/1984-70332016v16n2n23