Physiological potential of soybean seeds over storage after industrial treatment

Pereira, Lucas Caiubi; Garcia, Mayara Mariana; Braccini, Alessandro Lucca; Ferri, Gláucia Cristina; Suzukawa, Andreia Kazumi; Marteli, Danilo Cesar Volpato; Matera, Thaisa Cavalieri; Pereira, Renata Cristiane; Correia, Larissa Vinis

doi:10.1590/2317-1545v40n3185104

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ORIGINAL ARTICLE • J. Seed Sci. 40 (3) • Jul-Sep 2018 • https://doi.org/10.1590/2317-1545v40n3185104 copy

Physiological potential of soybean seeds over storage after industrial treatment

Potencial fisiológico de sementes de soja durante o armazenamento após tratamento industrial

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract:

The aim of this study was to evaluate the effect of industrial seed treatments on the physiological potential of soybean seeds over storage. Four mixtures of agrochemical products in association with two fertilizers were tested. The agrochemical product mixtures were carbendazim/thiram + imidacloprid/thiodicarb; pyraclostrobin, thiophanate-methyl, and fipronil; thiophanate-methyl/fluazinam + bifenthrin/imidacloprid; and metalaxyl-m/fludioxonil + thiamethoxam. The two fertilizers were 7% N, 16% P₂O₅, 0.6% Co, and 2.5% Mo; and 1% Co, 10% Mo, and 7% P₂ O₅. The experiment was carried out in a completely randomized design in a split-plot arrangement in time, with four replications. The treatments were allocated in the plots, while the storage periods (0, 30, 60, 90, and 120 days) constituted the split-plots. The following tests were carried out in each period: first count of germination, germination, accelerated aging, emergence speed index in sand substrate, and final seedling emergence in sand substrate. Seed germination and vigor declined over the storage period, especially after industrial treatment. Pesticide mixtures of a carbendazim/thiram fungicide base and an imidacloprid/thiodicarb insecticide base most impaired seed physiological potential throughout storage, regardless of fertilizer use in the industrial treatment.

Index terms:
Glycine max; micronutrients; germination; vigor

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 <lucascaiubi@yahoo.com.br>

Treatment	Description	Volume of seed-coating mixture (mL. 100 kg^-1)
T1	Control	-
T2	Technology I	900
T3	Technology I + Fertilizer I	1100
T4	Technology I + Fertilizer II	1100
T5	Technology II	400
T6	Technology II + Fertilizer I	600
T7	Technology II + Fertilizer II	600
T8	Technology III	750
T9	Technology III + Fertilizer I	950
T10	Technology III + Fertilizer II	950
T11	Technology IV	343.75
T12	Technology IV + Fertilizer I	543.75
T13	Technology IV + Fertilizer II	543.75

	Germination					Emergence in sand substrate
	0	30	60	90	120	0	30	60	90	120
T1	92.50 a	87.25 a	85.25 a	81.25 a	77.52 b	100.00 a	98.00 a	93.50 a	90.50 a	85.25 b
T2	90.00 b	85.50 b	83.00 b	77.00 b	71.54 c	97.50 a	93.50 a	90.00 b	87.00 b	83.00 b
T3	90.50 b	88.75 a	84.50 b	80.75 b	77.21 b	95.50 a	91.00 a	89.00 b	84.50 b	84.50 b
T4	93.00 a	90.25 a	86.75 a	83.75 a	80.89 a	99.00 a	97.50 a	93.00 a	90.00 a	86.75 a
T5	90.50 b	88.50 a	87.00 a	82.25 a	77.82 b	96.00 a	91.00 a	90.00 b	85.00 b	87.00 a
T6	90.75 b	86.50 b	84.00 b	78.50 b	73.56 b	98.50 a	97.50 a	94.50 a	90.50 a	84.00 b
T7	93.00 a	91.25 a	88.00 a	83.25 a	78.77 b	94.00 a	91.50 a	88.50 b	84.50 b	88.00 a
T8	93.75 a	91.50 a	89.75 a	83.50 a	77.80 b	98.00 a	95.00 a	90.50 b	86.00 b	84.75 b
T9	92.75 a	88.50 a	86.25 a	77.75 b	70.13 c	93.00 b	90.00 b	88.00 b	82.00 b	86.25 a
T10	96.00 a	91.25 a	86.50 a	82.25 a	78.23 b	100.00 a	100.00 a	97.00 a	93.50 a	86.50 a
T11	93.75 a	88.50 a	86.25 a	83.75 a	81.37 a	96.50 a	93.00 a	93.50 a	89.25 a	83.75 b
T12	89.00 b	85.50 b	81.50 b	77.00 b	72.76 c	88.50 b	86.00 b	82.50 b	81.50 b	79.00 b
T13	96.00 a	87.50 a	82.50 b	77.50 b	75.21 b	100.00 a	99.25 a	96.00 a	91.00 a	82.50 b

Treat.	Linear Regression Equations
Treat.	Germination	Emergence	First Count
T1	Y= 91.92 - 0.019 x. r² 0.99	Y= 100.00 - 0.019 x. r² 0.95	Y= 84.94 - 0.123 x. r² 0.94
T2	Y= 90.72 - 0.157 x. r² 0.98	Y= 97.78 - 0.130 x. r² 0.98	Y= 86.51 - 0.352 x. r² 0.92
T3	Y= 91.27 - 0.165 x. r² 0.99	Y= 94.52 - 0.093 x. r² 0.89	Y= 82.19 - 0.266 x. r² 0.92
T4	Y= 92.98 - 0.164 x. r² 0.99	Y= 99.10 - 0.101 x. r² 0.97	Y= 96.60 - 0.334 x. r² 0.87
T5	Y= 91.97 - 0.116 x. r² 0.96	Y= 93.38 - 0.116 x. r² 0.89	Y= 88.38 - 0.152 x. r² 0.96
T6	Y= 90.82 - 0.133 x. r² 0.96	Y= 90.82 - 0.019 x. r² 0.91	Y= 86.68 - 0.145 x. r² 0.98
T7	Y= 94.92 - 0.141 x. r² 0.96	No fit	Y= 85.23 - 0.170 x. r² 0.98
T8	Y= 96.22 - 0.157 x. r² 0.99	Y= 98.08 - 0.101 x. r² 0.98	Y= 89.67 - 0.206 x. r² 0.98
T9	Y= 98.92 - 0.177 x. r² 0.96	Y= 92.84 - 0.089 x. r² 0.81	No fit
T10	Y= 95.72 - 0.187 x. r² 0.99	No fit	Y= 83.72- 0.133 x. r² 0.98
T11	Y= 92.39 - 0.092 x. r² 0.97	Y= 95.41 - 0.086 x. r² 0.85	Y= 89.01 - 0.151 x. r² 0.95
T12	Y= 89.27 - 0.134 x. r² 0.99	Y= 88.04 - 0.076 x. r² 0.98	Y= 81.01 - 0.135 x. r² 0.91
T13	Y= 93.13 - 0.148 x. r² 0.93	No fit	Y= 84.61 - 0.187 x. r² 0.93

Treat.	First count					Emergence speed index
Treat.	0	30	60	90	120	0	30	60	90	120
T1	86.75 a	80.50 a	77.25 a	71.25 a	70.25 a	13.47 a	12.83 a	12.36 a	11.44 a	10.60 a
T2	81.50 b	76.75 b	70.25 b	62.00 b	36.76 c	13.17 a	11.15 b	8.03 b	4.65 c	4.15 c
T3	78.00 b	75.25 b	69.00 b	59.75 b	55.38 c	12.15 b	10.39 b	8.00 b	7.39 c	4.75 c
T4	89.75 a	76.50 a	81.75 a	73.50 a	61.05 b	12.11 b	10.92 b	4.59 c	3.79 c	2.24 c
T5	87.75 a	83.25 a	80.50 a	76.75 a	67.85 b	13.52 a	13.08 a	12.76 a	11.25 a	6.44 b
T6	86.75 a	82.25 a	78.75 a	72.00 a	69.90 a	13.37 a	13.11 a	12.72 a	12.34 a	7.18 b
T7	85.00 a	80.25 a	76.50 a	68.25 b	64.40 b	13.36 a	12.69 a	10.41 b	9.82 b	5.21 c
T8	90.25 a	83.50 a	77.75 a	69.25 b	64.01 b	13.54 a	12.87 a	10.59 b	9.77 b	4.99 c
T9	85.00 a	81.50 a	75.25 a	57.25 b	51.56 c	13.41 a	13.26 a	12.79 a	11.10 a	9.43 a
T10	83.00 a	79.25 a	77.50 a	72.00 a	67.36 b	13.37 a	12.74 a	10.30 b	9.63 b	6.75 b
T11	91.00 a	84.00 a	79.00 a	73.50 a	69.37 a	13.10 a	12.49 a	11.84 a	11.17 a	6.29 b
T12	83.00 a	77.00 a	71.25 b	67.50 b	62.30 b	11.59 b	10.97 b	9.99 b	9.22 b	6.53 b
T13	88.00 a	80.00 a	71.25 b	62.50 b	58.11 b	13.16 a	12.22 a	9.74 b	9.05 b	6.79 b

Treat.	0	30	60	90	120
T1	76.00 b	67.75 c	61.00 b	52.75 b	49.75 a
T2	78.75 b	67.50 c	58.00 c	47.50 b	27.88 c
T3	71.50 b	57.00 d	54.75 c	39.25 c	25.90 c
T4	83.50 b	74.75 b	65.25 b	44.25 b	23.74 c
T5	82.00 b	70.75 b	65.75 b	51.50 b	34.86 b
T6	90.00 a	80.75 a	73.25 a	62.25 a	29.51 c
T7	79.50 b	72.00 b	65.25 b	55.25 b	32.65 b
T8	72.00 b	66.00 c	56.75 c	47.75 b	35.13 b
T9	71.25b	61.00 d	50.50 c	39.75c	23.68 c
T10	65.25c	55.50 d	41.00 d	27.00 d	15.22 d
T11	76.00 b	66.75 c	60.75 b	52.50 b	29.30 c
T12	83.50 b	72.25 b	62.75 b	50.00 b	29.49 c
T13	76.75 b	64.50 c	53.75 c	42.25 c	32.95 b