Treatment of soybean seeds of different levels of physiological quality with amino acids

Dörr, Caio Sippel; Almeida, Tainan Lopes de; Panozzo, Luis Eduardo; Schuch, Luis Osmar Braga

doi:10.1590/2317-1545v40n4199311

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ORIGINAL ARTICLE • J. Seed Sci. 40 (4) • Oct-Dec 2018 • https://doi.org/10.1590/2317-1545v40n4199311 copy

Treatment of soybean seeds of different levels of physiological quality with amino acids

Tratamento de sementes de soja de diferentes níveis de qualidade fisiológica com aminoácidos

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract:

The aim of this study was to assess the effect of seed treatment at different levels of physiological quality with amino acids on the performance of seeds and plants in the field. The experimental design was a randomized complete block design with four replications involving a combination of two factors. Factor A consisted of seed lots of three levels of physiological quality (high, intermediate, and low) and factor B consisted of five doses of a commercial product based on amino acids used in seed treatment.Seeds of different levels of physiological quality were treated with a commercial product (C.P.) at doses of 0, 200, 400, 600, and 800 mL C.P. 100 kg⁻¹ of seeds. After seed treatment, the physiological performance was assessed in the laboratory and then the seeds were sowed in the field aiming at assessing plant performance, yield components, and productivity. Seed treatment with amino acids does not promote the physiological performance of seeds and plants in the field. The productivity of isolated soybean plants from seed lots of a high physiological quality is 15% higher than that of plants from seed lots of a low physiological quality.

Index terms:
Glycine max; germination; seed vigor; productivity

ABRATES - Associação Brasileira de Tecnologia de Sementes Av. Juscelino Kubitschek, 1400 - 3° Andar, sala 31 - Centro,, CEP 86020-000 Londrina/PR - Londrina - PR - Brazil
E-mail: jss@abrates.org.br

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[1] *Corresponding author <caiodorrcsd@gmail.com>

Physiological quality	Doses of amino acids (mL. 100 kg⁻¹ of seeds)					Mean
Physiological quality	0	200	400	600	800	Mean
Germination (%)
High	93	90	96	96	98	94 A
Intermediate	91	91	92	91	92	91 A
Low	88	75	81	78	87	82 B
Mean	91^ns	85	90	88	92
CV (%)	5.35
First germination count (%)
High	83 A	80 A	85 A	86 A	88 A	84
Intermediate	75 AB	75 A	76 A	70 B	67 B	73
Low	68 B	51 B	64 B	55 C	67 B	61
Mean	75	69	75	70	74
CV (%)	8.17
Accelerated aging (%)
High	97 A	94 A	96 A	93 A	94 A	95
Intermediate	76 B	75 B	79 B	63 B	62 B	71
Low	57 C	54 C	48 C	36 C	49 C	49
Mean	77	74	74	64	68
CV (%)	6.82
Cold test (%)
High	97 A	85 A	90 A	97 A	94 A	93
Intermediate	70 B	67 B	65 B	68 B	54 B	65
Low	48 C	48 C	42 C	44 C	40 C	44
Mean	72	67	66	70	63
CV (%)	8.26
Shoot length (mm)
High	89.0	95.3	89.2	93.3	88.6	91.1 A
Intermediate	75.1	74.3	75.0	75.2	72.4	74.4 B
Low	69.1	80.2	70.8	67.2	76.1	72.7 B
Mean	77.7^ns	83.3	78.3	78.6	79.0	79.4
CV (%)	12.17
Root length (mm)
High	136.4	137.4	140.2	145.5	143.7	140.7 A
Intermediate	130.2	131.0	131.2	123.7	127.6	128.7 B
Low	121.6	114.0	112.9	99.2	117.6	113.1 C
Mean	129.4^ns	127.5	128.1	122.8	129.6	127.5
CV (%)	8.28

Physiological quality	Doses of amino acids (mL. 100 kg⁻¹ of seeds)					Mean
Physiological quality	0	200	400	600	800	Mean
Stem diameter (mm)
High	10.01^ns	9.44	9.03	8.05	8.78	9.06
Intermediate	8.35	9.45	9.67	9.92	9.61	9.40
Low	9.65	9.95	9.66	8.40	9.39	9.41
Mean	9.34	9.61	9.45	8.79	9.26
CV (%)	9.34
Plant height (cm)
High	114.46	118.58	118.75	117.28	116.38	117.0 A
Intermediate	120.0	115.25	111.58	112.32	111.88	114.2 B
Low	116.42	113.25	112.25	110.47	111.25	112.7 B
Mean	116.96^ns	115.69	114.19	113.36	113.17
CV (%)	2.77
Number of branches per plant
High	7.3^ns	8.7	7.2	7.3	7.6	7.6
Intermediate	7.7	8.0	7.2	6.9	7.8	7.5
Low	7.3	8.2	6.6	6.2	7.2	7.1
Mean	7.4	8.3	7.0	6.8	7.5
CV (%)	17.64

Physiological quality	Doses of amino acids (mL. 100 kg⁻¹ of seeds)					Mean
Physiological quality	0	200	400	600	800	Mean
Number of pods per plant
High	116 A	125 A	120 A	99 A	111 A	114
Intermediate	92 B	108 A	102 A	112 A	86 B	100
Low	115 AB	122 A	124 A	101 A	61 C	105
Mean	108	118	115	102	89
CV (%)	11.25
Number of seeds per plant
High	270^ns	260	225	203	260	243
Intermediate	227	234	228	251	263	240
Low	262	241	219	202	211	227
Mean	253	245	224	219	245
CV (%)	13.43
One thousand seed weight
High	149.52^ns	144.54	145.98	134.54	140.35	143.0
Intermediate	135.20	139.87	147.45	145.77	145.29	142.7
Low	148.76	148.67	145.99	135.23	134.04	142.5
Mean	144.49	144.36	146.47	138.51	139.89
CV (%)	6.97
Productivity (g. plant⁻¹)
High	34.55	34.16	32.42	31.71	33.46	33.26 A
Intermediate	32.25	31.45	31.79	30.54	30.82	31.37 A
Low	28.74	28.57	28.21	28.18	27.69	28.28 B
Mean	31.85^ns	31.39	30.81	30.14	30.66
CV (%)	9.60