Effects of vermicompost water extract prepared from bamboo and kudzu against Meloidogyne incognita and Rotylenchulus reniformis
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Effects of vermicompost water extract prepared from bamboo and kudzu against Meloidogyne incognita and Rotylenchulus reniformis

Journal of Nematology

Volume 50 (2018): Issue 4 (January 2018)

By: Xiaodong You, Motoaki Tojo, Shelby Ching and Koon-Hui Wang

Open Access

|Dec 2018

Figures & Tables

Hatching chamber used to allow harvesting of hatch juveniles over a 7 d period.

Split-root experiment constructed by two conjoint pots where one side of the roots will be drenched with vermicompost tea (VCT) and the other side of the roots will be inoculated with the designated plant-parasitic nematodes.

Numbers of juveniles of (A) Meloidogyne incognita and (B) Rotylenchulus reniformis hatched after incubating their eggs in vermicompost teas prepared from vermicompost composed of bamboo and kudzu (weed VCT) and vegetable food waste (vegetable VCT), and water control for 7 d. Columns (n = 4) with same letter(s) are not different according to Waller–Duncan k-ration (k = 100) t-test.

Numbers of Meloidogyne incognita J2 immobilized after incubating in vermicompost teas prepared from vermicompost composed of bamboo and kudzu (weed VCT), vegetable food waste (vegetable VCT) and water for 24 hr. Columns (n = 4) followed by the same letter(s) are not different according to Waller–Duncan k-ration (k = 100) t-test.

Effect of vermicompost teas prepared from vermicompost composed of bamboo and kudzu (weed VCT), vegetable food waste (vegetable VCT) compared to water control on root penetration of (A) Meloidogyne incognita in cucumber, and (B) Rotylenchulus reniformis in cowpea using split-root assays. Means are average of five and four replications for M. incognita and R. reniformis, respectively. Column followed by same letter(s) are not different according to Waller-Duncan k-ration (k = 100) t-test based on log transformed values, log (x+1).

Abundance of (A) bacterivorous and (B) omnivorous nematodes in water or vermicompost teas prepared from 30 cm3 of vermicompost composed of bamboo and kudzu (weed VCT) or vegetable food waste (vegetable VCT) incubated in Baermann trays. Columns (n = 3) followed by the same letter(s) are not different according to Waller–Duncan k-ration (k = 100) t-test.

Effect of vermicompost teas prepared from vermicompost composed of bamboo and kudzu (weed VCT), vegetable food waste (vegetable VCT) compared to water control on root-gall index (in a scale of 0-5) of cowpea in two field trials. Columns (n = 4) followed by same letter(s) are not different according to Waller–Duncan k-ration (k = 100) t-test.

Macro- and micro-nutrients content of weed VCT prepared from vermicompost with moso-bamboo and kudzu as feed stock and vegetable VCT prepared from vermicompost with vegetable waste as feed stock_

Content (mg/l)	Weed VCT	Vegetable VCT
Nitrogen	27.60 b	280.00 a
Phosphorus	0.80 b	5.62 a
Potassium	53.59 b	213.24 a
Calcium	20.86 a	25.74 a
Magnesium	17.21 a	18.89 a
Boron	0.06 b	0.47 a
Fe	0.03 b	0.27 a
Mn	0.01 a	0.02 a
Zn	0.03 a	0.03 a
Cu	0.01 b	0.02 a

Effect of vermicompost tea on plant-parasitic nematodes and percent trophic groups of free-living nematodes in a cowpea agroecosystem_

		Trial I			Trial II
Nematodes	Water	Weed VCT	Vegetable VCT	Water	Weed VCT	Vegetable VCT
	5/25/17
M. incognita	62 a	90 a	120 a	155 A	132 A	35 A
R. reniformis	312 a	465 a	435 a	728 A	450 A	402 A
% Bacterivores	40.45 a	27.11 a	27.12 a	20.82 A	21.18 A	25.00 A
% Fungivores	22.22 a	15.77 a	12.19 a	17.53 A	17.91 A	12.37 A
% Omnivores	0.28 a	0.35 a	0.00 a	0.39 A	0.10 A	0.61 A
	6/21/17
M. incognita ^z	25 a	95 a	60 a	28 B	195 A	30 B
R. reniformis	402 a	285 a	495 a	338 A	385 A	502 A
% Bacterivores^y	18.89 a	17.84 a	12.21 a	17.99 A	12.68 A	13.38 A
% Fungivores	10.62 a	10.92 a	6.53 a	9.82 A	10.76 A	6.89 A
% Omnivores	3.62 a	1.42 a	0.96 a	0.45 B	2.90 A	1.75 AB

DOI: https://doi.org/10.21307/jofnem-2018-054 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X

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Language: English

Page range: 569 - 578

Published on: Dec 3, 2018

Published by: Society of Nematologists, Inc.

In partnership with: Paradigm Publishing Services

Publication frequency: 1 issue per year

Keywords:

Bacterivorous nematodes,

Meloidogyne incognita,

Rotylenchulus reniformis,

Split-root experiment,

Related subjects:

Life sciences, other

© 2018 Xiaodong You, Motoaki Tojo, Shelby Ching, Koon-Hui Wang, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

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