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Plant-parasitic nematodes associated with the root zone of hop cultivars planted in a Florida field soil

Tristan T. Watson
Tristan T. Watson
, 
Marco Suarez
Marco Suarez
, 
Zhanao Deng
Zhanao Deng
 and 
Johan A. Desaeger
Johan A. Desaeger
   | Apr 23, 2020
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Published Online: Apr 23, 2020
Page range: 1 - 10
Received: Sep 19, 2019
DOI: https://doi.org/10.21307/jofnem-2020-040
Keywords
© 2020 Tristan T. Watson et al., published by Sciendo.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Effect of hop cultivar on soil populations of Meloidogyne javanica in Hop Yard Planting No. 3.

Meloidogyne javanica/200 mL Soil
Cultivar December 2017 July 2018 December 2018 July 2019
‘Canadian Red Vine’ 88 128 486 19
‘Galena’ 8 146 93 9
‘Mt. Rainier’ 31 153 522 5
‘Tahoma’ 80 427 339 18
‘Willamette’ 12 190 275 10
p-value 0.274 0.337 0.309 0.677

Effect of hop cultivar on soil populations of Meloidogyne javanica in Hop Yard Planting No. 2.

Meloidogyne javanica/200 mL soil
Cultivar (Source) December 2017 July 2018 December 2018 July 2019
‘Cascade’ (WA) 16 68 ab 208 20
‘Cascade’ (FL) 48 3 b 155 29
‘Cashmere’ 2 22 ab 89 34
‘Centennial’ (WA) 36 106 a 320 132
‘Centennial’ (FL) 48 69 ab 372 37
‘Chinook’ (WA) 1 17 ab 99 9
‘Chinook’ (FL) 67 0 b 37 5
‘Comet’ 27 13 b 278 69
‘Magnum’ 1 6 b 234 21
‘Nugget’ 5 10 b 85 1
‘Triple Perle’ 1 1 b 23 23
‘Zeus’ 0 46 ab 33 26
P-value 0.225 0.004 0.922 0.689

Effect of hop cultivar and planting material source on soil populations of plant-parasitic nematodes and root galling in December 2016 in Hop Yard Planting No. 1.

Nematodes per 200 mL of soil (No.)
Cultivar (Source) Meloidogyne javanica Pratylenchus brachyurus Gall rating (0-10)
‘CTZ’ 46 19 1.44 c
‘Cascade’ (OR) 277 42 3.92 abc
‘Cascade’ (WA) 102 26 2.53 bc
‘Centennial’ (OR) 336 23 5.94 ab
‘Centennial’ (WA) 389 27 4.42 abc
‘Chinook’ 526 21 6.67 a
‘Fuggle’ 127 11 5.83 ab
‘Magnum’ 31 69 0.72 c
‘Nugget’ 56 29 1.75 c
‘Sorachi Ace’ 75 19 3.92 abc
‘Triple Perle’ 20 7 1.17 c
‘Willamette’ 175 31 3.08 abc
p-Value 0.651 0.904 <0.001

Effect of hop cultivar on soil populations of Pratylenchus brachyurus in Hop Yard Planting No. 2.

Pratylenchus brachyurus/200 mL soil
Cultivar (Source) December 2017 July 2018 December 2018 July 2019
‘Cascade’ (WA) 0 4 23 13
‘Cascade’ (FL) 85 40 24 3
‘Cashmere’ 0 13 25 5
‘Centennial’ (WA) 0 3 6 10
‘Centennial’ (FL) 40 22 21 5
‘Chinook’ (WA) 0 33 23 13
‘Chinook’ (FL) 33 7 17 4
‘Comet’ 34 8 14 7
‘Magnum’ 2 17 98 8
‘Nugget’ 0 15 19 3
‘Triple Perle’ 1 21 25 7
‘Zeus’ 1 71 87 18
p-value 0.142 0.085 0.557 0.643

Effect of hop cultivar on root galling and the abundance of Meloidogyne javanica eggs per plant in the greenhouse experiment.

Cultivar Gall rating (0-10) Meloidogyne javanica eggs per plant (No.)
‘Canadian Red Vine’ 5.33 abc 6,267 c
‘Cascade’ 1.83 def 17,253 abc
‘Cashmere’ 5.50 ab 29,960 ab
‘Centennial’ 3.17 b-e 23,107 abc
‘Chinook’ 5.00 abc 16,493 abc
‘Comet’ 6.67 a 38,653 a
‘Galena’ 0.50 f 4,707 c
‘Magnum’ 3.33 bcd 2,453 c
‘Mt. Rainier’ 3.33 b-e 10,893 bc
‘Nugget’ 3.00 cde 7,307 bc
‘Tahoma’ 3.33 b-e 8,880 bc
‘Triple Perle’ 3.17 b-e 12,707 bc
‘Willamette’ 1.67 def 2,949 c
‘Zeus’ 4.67 abc 13,360 bc
p-value <0.001 <0.001

Effect of hop cultivar on soil populations of Pratylenchus brachyurus in Hop Yard Planting No. 3.

Pratylenchus brachyurus/200 mL soil
Cultivar December 2017 July 2018 December 2018 July 2019
‘Canadian Red Vine’ 1 10 14 8
‘Galena’ 11 17 60 18
‘Mt. Rainier’ 3 18 63 20
‘Tahoma’ 2 4 20 7
‘Willamette’ 8 5 28 3
p-value 0.559 0.165 0.305 0.217

Molecular identification of plant-parasitic nematode species in the rooting zone of hop cultivars in a Florida field soil.

Common name GenBank accession Closest accession Percent identity (%) Species
28S Gene region a
Dagger MN922336.1 KX931065.1 97.5 Xiphinema setariae/vulgare complex
Lesion MN922338.1 MG745329.1 98.8 Pratylenchus brachyurus
Ring MN922337.1 FN433872.1 98.1 Mesocriconema xenoplax
Spiral MN922339.1 AB602601.1 99.1 Helicotylenchus sp.
Stubby-Root MN922340.1 MG938546.1 100 Paratrichodorus minor
18S Gene region b
Lesion MN911166.1 KY677821.1 98.8 Pratylenchus brachyurus
Spiral MN911167.1 MK796435.1 98.8 Helicotylenchus dihystera
Stubby-Root MN911168.1 KJ934126.1 100 Paratrichodorus minor
eISSN:
2640-396X
Language:
English
Publication timeframe:
Volume Open
Journal Subjects:
Life Sciences, other
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