The effects of Meloidogyne incognita and Heterodera glycines on the yield and quality of edamame (Glycine max l.) in Arkansas

Wilkes, J. E.; Kirkpatrick, T. L.

The effects of Meloidogyne incognita and Heterodera glycines on the yield and quality of edamame (Glycine max l.) in Arkansas

Journal of Nematology

Volume 52 (2020): Issue 1 (January 2020)

By:

J. E. Wilkes and T. L. Kirkpatrick

Open Access

|Mar 2020

Figures & Tables

Effects of Meloidogyne incognita on three yield parameters; (A) dried plant weight in grams; (B) Total weight of harvested edamame pods in grams; and (C) Total fresh seed weight in grams on edamame cultivar, ‘8080’, in microplots from two locations. Plants were harvested at reproductive stage 6 (R6). Error bars represent standard error of the mean for each treatment. Differences in letters indicate significantly different values as determined by LSD at p ≤ 0.05.

Effects of Heterodera glycines on five edamame yield parameters; (A) total weight of dried plant mass; (B) average number of harvested pods per plant; (C) the number of seeds in 30 grams; (D) total weight of pods in grams; and (E) total fresh bean weight in grams in microplots from two locations. Edamame plants were harvested at reproductive stage 6 (R6). Error bars represent standard error of the mean for each treatment. Differences in letters indicate significantly different values determined by LSD at p ≤ 0.05.

Average gall rating of Meloidogyne incognita on 22 different edamame breeding lines 45 days after inoculation. Gall ratings were based on a 1-10 scale (Barker, 1982). Each bar represents an average of three trials with five replications in each trial. Edamame lines with different letters listed above bars indicate significant differences using LSD analysis, p ≤ 0.05.

Average number of Meloidogyne incognita eggs per gram of dry root in 22 different edamame breeding lines 45 days after inoculation. Each bar in trial 1 (A), 2 (B), and 3 (C) represent an average of five replications. Edamame lines with different letters above the bar indicate significant difference as determined by LSD analysis, p ≤ 0.05.

Average number of Heterodera glycines cysts from soil and roots of 22 edamame breeding lines 30 days after inoculation. Each bar represents the average of two trials with five replications in each trial. Different letters above bars indicate LSD significant levels, p ≤ 0.05.

Food composition percentage on a dry weight basis from edamame seed in H_ glycines-infested microplots_

Treatment (eggs per plot)	Moisture	Protein	Lipid	Starch
Hope
0	70.15 ^a,b	37.57 ^a	10.14 ^a	10.73 ^a
1,000	70.61 ^a	37.57 ^a	10.85 ^a	10.46 ^a
10,000	69.59 ^a,b	36.86 ^a,b	10.38 ^a	10.91 ^a
100,000	66.24 ^b	36.18 ^b	11.66 ^a	10.94 ^a
Fayetteville
0	74.87 ^a	35.86 ^a	8.03 ^a	12.62 ^a
1,000	75.33 ^a	36.37 ^a	7.82 ^a	12.39 ^a
10,000	74.82 ^a,b	35.71 ^a	8.87 ^a,b	13.01 ^a
100,000	74.46 ^b	34.66 ^b	9.62 ^b	13.25 ^a

Meloidogyne incognita population density in microplots at edamame harvest in two locations_

Initial infestation density (eggs per microplot)	M. incognita juveniles (J2) per 100 cm³ soil	Gall rating^a	Average number of eggs from one root ball
Hope
0	0 ^a,b	0 ^a	0 ^a
1,000	92 ^b	6.2 ^b	1,681,720 ^b
10,000	79 ^b	8.3 ^c	1,510,267 ^b
100,000	110 ^b	9.1 ^c	682,973 ^a,b
Fayetteville
0	0 ^a	0 ^a	0 ^a
1,000	2 ^a	5.2 ^b	200,720 ^b
10,000	297 ^b	7.0 ^b	859,840 ^b
100,000	1,018 ^c	9.7 ^c	1,559,313 ^c

Food composition percentage on a dry weight basis from edamame seed in M_ incognita-infested microplots_

Treatment (eggs per plot)	Moisture	Protein	Lipid	Starch
Hope
0	71.37 ^a	38.24 ^a	11.16 ^a	10.29 ^a
1,000	70.37 ^a	38.23 ^a	12.83 ^a	10.56 ^a
10,000	68.04 ^b	36.89 ^b	14.58 ^a	10.08 ^a
100,000	68.83 ^b	36.46 ^b	14.66 ^a	10.06 ^a
Fayetteville
0	76.04 ^a	36.53 ^a	10.02 ^a	9.27 ^a
1,000	75.41 ^a	36.44 ^a	10.27 ^a	9.56 ^a
10,000	76.19 ^a	36.92 ^a	12.10 ^a	9.43 ^a
100,000	75.75 ^a	36.47 ^a	10.40 ^a	9.58 ^a

Average population density of nematode genera (when present) identified in Arkansas edamame fields_

County	No. of fields	Meloidogyne	Heterodera	Pratylenchus	Helicotylenchus	Tylenchorhynchus	Paratrichodorus	Hoplolaimus
2013
Faulkner	1	0 a	0	94	42	83	42	0
Johnson	1	42	83	83	42	0	0	0
Logan	10	0	42	50	42	80	42	0
Lonoke	9	278	54	77	88	236	125	125
Pulaski	1	0	125	83	250	167	125	0
White	7	42	52	0	0	0	42	0
Yell	4	339	0	369	42	83	42	0
Percent prevalent ^b		36.36	39.39	57.58	39.39	30.3	21.21	3.03
2014
Johnson	7	2731	38	51	142	50	38	0
Logan	3	0	0	38	102	128	0	0
Lonoke	7	637	346	66	109	99	38	0
White	8	0	61.2	38	67	66	154	77
Yell	6	38	58	53	84	38	0	0
Percent prevalent		22.58	38.71	48.39	80.65	58.06	19.35	3.23

Heterodera glycines population density in microplots at edamame harvest in two locations_

Initial infection level (eggs per microplot)	H. glycines juveniles (J2) per 100 cm³ soil	Cysts per 100 cm³ soil	Cysts from roots in microplots at harvest
Hope
0	0 ^a	0 ^a	0 ^a
1,000	2 ^a	8 ^a	97 ^a
10,000	26 ^a	67 ^a	745 ^a
100,000	199 ^b	850 ^b	7,674 ^b
Fayetteville
0	176 ^a	14 ^a	240 ^a
1,000	102 ^a	12 ^a	220 ^a
10,000	531 ^a	36 ^a	774 ^a
100,000	2,068 ^b	254 ^b	3,923 ^b

DOI: https://doi.org/10.21307/jofnem-2020-012 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X

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Language: English

Page range: 1 - 15

Submitted on: May 15, 2019

Published on: Mar 17, 2020

Published by: Society of Nematologists, Inc.

In partnership with: Paradigm Publishing Services

Publication frequency: 1 issue per year

Keywords:

Soybean cyst nematode,

Vegetable soybean

Related subjects:

Life sciences,

Life sciences, other

© 2020 J. E. Wilkes, T. L. Kirkpatrick, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

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The effects of Meloidogyne incognita and Heterodera glycines on the yield and quality of edamame (Glycine max l.) in Arkansas

Figures & Tables

Figure 1:

Figure 2:

Figure 3:

Figure 4:

Figure 5:

Food composition percentage on a dry weight basis from edamame seed in H_ glycines-infested microplots_

Meloidogyne incognita population density in microplots at edamame harvest in two locations_

Food composition percentage on a dry weight basis from edamame seed in M_ incognita-infested microplots_

Average population density of nematode genera (when present) identified in Arkansas edamame fields_

Heterodera glycines population density in microplots at edamame harvest in two locations_

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