Physiological performance of soybean seeds in the accelerated aging test and their germination after several waiting periods

Rodrigues, Mayara; Krzyzanowski, Francisco Carlos; França-Neto, José de Barros; Henning, Fernando Augusto; Lopes, Ivani de Oliveira Negrão

doi:10.1590/2317-1545v44257868

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ARTICLE • J. Seed Sci. 44 • 2022 • https://doi.org/10.1590/2317-1545v44257868 linkcopy

Physiological performance of soybean seeds in the accelerated aging test and their germination after several waiting periods

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Abstract:

The accelerated aging test is widely used to evaluate the vigor of soybean seeds. Currently, the methodology recommended in the literature is to set up the germination test at most one hour after the seed aging process, which makes it difficult to set up and evaluate a large number of samples. The aim of this study was to assess the effect of delay in setting up the germination test after the process of accelerated aging of soybean seeds, specifically its effect on seed physiological performance. We tested three seed lots of the soybean cultivars BRS 397, BRS 399 RR, BRS 1007 IPRO, BRS 1010 IPRO, and BRS 388, all within the standards required for commercialization. The seed lots were physiologically characterized by evaluation of moisture content, germination, seedling vigor classification, tetrazolium test (viability and vigor) and accelerated aging test. The treatments consisted of hours (0, 1, 2, 3, 4, 5, 6, 7, and 8) of delay in setting up the germination test after accelerated aging. A delay of up to eight hours in setting up the germination test after the accelerated aging process of soybean seeds has no direct relationship with the result of assessment of the physiological performance of the seed lot.

Index Terms: analysis; Glycine max (L.) Merrill; seed vigor test

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ABRATES - Associação Brasileira de Tecnologia de Sementes Av. Juscelino Kubitschek, 1400 - 3° Andar, sala 31 - Centro,, CEP 86020-000 Londrina/PR - Londrina - PR - Brazil
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[TFN1] Within each cultivar, mean values followed by different letters in the columns differ from each other by Tukey’s test at 5% probability. CV: coefficient of variation.

Cultivar	Lot	Initial moisture content	Germination	Seedling vigor classification		A.A.	Tetrazolium test
Cultivar	Lot	Initial moisture content	Germination	Strong	Weak		Vigor	Viability
		--------------------------------------------- % ------------------------------------------
BRS 397	1	11.1	91 ab	56 a	35 ab	81 b	85 b	92 a
	2	11.1	88 b	59 a	29 b	77 b	87 ab	95 a
	3	11.1	94 a	58 a	36 a	88 a	91 a	96 a
	CV (%)	--	2.6	7.7	10.0	2.7	2.6	2.5
BRS 1007 IPRO	1	11.2	88 a	68 a	20 a	79 b	78 a	93 a
	2	11.1	91 a	76 a	15 a	87 a	79 a	92 a
	3	11.1	90 a	76 a	14 a	86 a	78 a	94 a
	CV (%)	--	2.9	8.0	34.4	3.0	2.7	2.1
BRS 388	1	10.8	91 b	66 a	25 a	81 b	80 a	91 a
	2	10.5	94 ab	69 a	25 a	90 a	85 a	94 a
	3	10.9	95 a	71 a	24 a	90 a	85 a	93 a
	CV (%)	--	1.8	4.5	15.9	3.9	4.1	2.6
BRS 399 RR	1	10.7	95 a	76 a	19 a	83 a	92 a	97 a
	2	10.9	91 b	67 b	24 a	79 a	89 a	95 a
	3	10.8	91 b	71 ab	20 a	81 a	89 a	95 a
	CV (%)	--	1.8	4.7	15.1	4.3	2.9	2.4
BRS 1010 IPRO	1	10.9	94 a	82 a	12 b	87 b	84 b	94 a
	2	11.1	86 b	71 b	15 b	85 b	76 c	87 b
	3	11.0	97 a	76 ab	21 a	93 a	90 a	96 a
	CV (%)	--	1.9	4.8	19.7	2.3	2.6	2.5

Cultivar	Lot	Regression equations: Moisture content (%) × Time (h)
BRS 397	1	Y = 24.72 + 0.007X; R² = 0.0069^ns
	2	Y = 25.09 + 0.043X; R² = 0.0646^ns
	3	Y = 24.92 - 0.018X; R² = 0.0101^ns

BRS 1007 IPRO	1	Y = 23.63 + 0.173X; R² = 0.7875^***
	2	Y = 22.55 + 0.175X; R² = 0.7516^**
	3	Y = 24.12 + 0.032X; R² = 0.0325^ns

BRS 388	1	Y = 23.99 + 0.114X; R² = 0.2050^ns
	2	Y = 22.83 + 0.146X; R² = 0.4482^ns
	3	Y = 23.65 + 0.139X; R² = 0.4037^ns

BRS 399RR	1	Y = 23.18 + 0.420X; R² = 0.5436^***
	2	Y = 22.60 + 0.489X; R² = 0.7803^**
	3	Y = 24.42 + 0.190X; R² = 0.1896^*

BRS 1010 IPRO	1	Y = 23.83 - 0.0001X; R² = 0.0000^ns
	2	Y = 23.37 + 0.133X; R² = 0.6498^**
	3	Y = 23.86 + 0.039X; R² = 0.0741^ns

Cultivar	Lot	Regression equations: Germination (%) × Time (h)
BRS 397	1	Y = 82.25 + 0.083X; R² = 0.0160^ns
	2	Y = 80.44 - 0.467X; R² = 0.2568^ns
	3	Y = 85.50 - 0.100X; R² = 0.0125^ns

BRS 1007 IPRO	1	Y = 80.97 - 0.017X; R² = 0.0007^ns
	2	Y = 87.44 - 0.733X; R² = 0.5418^*
	3	Y = 88.78 - 0.933X; R² = 0.8311^***

BRS 388	1	Y = 69.86 + 0.450X; R² = 0.1540^ns
	2	Y = 89.06 - 0.367X; R² = 0.2556^ns
	3	Y = 88.33 + 0.067X; R² = 0.0167^ns

BRS 399 RR	1	Y = 81.33 + 0.200X; R² = 0.0500^ns
	2	Y = 75.19 + 0.450X; R² = 0.1443^ns
	3	Y = 83.81 - 0.517X; R² = 0.3107^ns

BRS 1010 IPRO	1	Y = 87.86 - 0.2833; R² = 0.2643^ns
	2	Y = 82.94 + 0.033X; R² = 0.0017^ns
	3	Y = 83.94 + 0.367X; R² = 0.2039^ns

Cultivar	Lot	Time (h)									CV (%)
		0	1	2	3	4	5	6	7	8
BRS 1007 IPRO	1^ns	80 a	80 a	82 a	83 a	79 a	81 a	82 a	83 a	78 a	3.47 3.50 3.37
	2^**	85 a	84 ab	86 a	87 a	85 a	84 ab	84 ab	81 ab	78 b
	3^*	87 a	86 ab	86 ab	86 ab	85 ab	84 ab	84 ab	80 ab	79 b