Water uptake of soybean pods and seeds with different lignin contents

Brzezinski, Cristian Rafael; Abati, Julia; Zucareli, Claudemir; Krzyzanowski, Francisco Carlos; França-Neto, José de Barros; Henning, Fernando Augusto

doi:10.1590/0034-737X202269040013

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Vegetative and Seminiferous Propagation • Rev. Ceres 69 (4) • Jul-Aug 2022 • https://doi.org/10.1590/0034-737X202269040013 copy

Water uptake of soybean pods and seeds with different lignin contents¹ This work is part of the Doctoral Thesis of the first author and received financial support from CAPES.

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The identification of pod- and seed-related traits of soybean genotypes and their interaction with water uptake can be applied in breeding programs with a view to establishing cultivars developed for the production and maintenance of high-quality seeds. The objective was to evaluate the water uptake of pods and seeds of soybean cultivars with different lignin contents after different soaking periods. The experimental was arranged in a completely randomized, 7×10 factorial design, with four replications. The factors consisted of seven soybean cultivars and 10 soaking periods (1, 2, 3, 4, 5, 6, 7, 8, 24, 48 hours). The pods and seeds were grown in a greenhouse and harvested at the phenological growth stage R8 (at full maturation, when 95% of the pods had mature color). The following traits were evaluated: lignin content in pod and seed coat, moisture content, and rate of water uptake of pods and seeds. Soybean cultivars with pods with high lignin contents have a lower rate of water uptake. The lignin contents of the seed coats, within the chosen limits, did not affect the seed water uptake.

Keywords:
Glycine max (L.) Merrill; hydration; permeability; seed coat.

Code	Cultivar	Type¹	Habit²	Cycle	Group	Pubescence
A	BRS 1010 IPRO	I	Ind.	Early	6.1	Gray
B	BRS 284	C	Ind.	Early	6.3 a 7.1	Gray
C	NA 5909 RR	RR	Ind.	Early	5.9	Gray
D	BRSMG 752 S	C	Ind.	Semi Early	7.5	Brown
E	BRS Pintado	C	Det.	Medium	8.7	Gray
F	BRS Jiripoca	C	Det.	Medium	8.4	Gray
G	M 8210 IPRO	I	Det.	Early	8.2	Brown

Mean Squares
F.V.	G.L.	AP	AS	LP	LS
Cultivar (C)	6	26.54**	498.13**	10.96**	0.39**
Water-soaking (W)	9	1364.03**	14542.62**	-	-
C * W	54	12.12**	43.97**	-	-
Error	140	7.26	14.26	0.090	0.0290
Average	-	11.58	35.98	15.57	4.25
CV (%)	-	23.27	10.50	1.93	4.01

Cultivar	Water content in pods (%)	Water content in seeds (%)
A*	13.0	13.7
B	13.5	14.3
C	14.0	12.3
D	13.2	13.9
E	13.7	12.0
F	12.7	12.2
G	13.0	12.7

Pods
Cultivar	Soaking periods (hours)
Cultivar	1	2	3	4	5	6	7	8	24	48
A*	2.0a	2.4a	3.8a	5.0a	8.7a	12.0a	15.1a	17.8a	26.9a	34.3a
B	1.9a	2.6a	4.0a	4.4a	7.4a	10.7a	12.3a	16.2a	21.1b	28.6b
C	1.5a	1.7a	2.4a	5.3a	8.8a	11.5a	15.2a	17.3a	21.6b	30.7b
D	2.3a	2.7a	3.6a	4.7a	6.7a	10.1a	13.7a	13.3b	19.2b	22.8c
E	3.9a	4.7a	7.0a	8.8a	9.8a	11.4a	13.3a	15.3a	19.5b	20.7c
F	3.5a	4.8a	6.8a	8.5a	10.0a	11.3a	13.4a	15.5a	19.6b	21.7c
G	4.2a	4.7a	7.1a	7.9a	9.7a	11.4a	13.9a	16.4a	21.8b	26.5b
CV (%)	23.27
Seeds
A	4.7a	10.0a	19.9a	21.1a	24.0b	30.0b	36.8a	39.7b	71.1b	82.7c
B	5.4a	9.2a	12.6a	18.0a	20.7b	22.8c	29.1b	31.4c	61.0c	73.4d
C	6.3a	11.6a	20.5a	25.5a	30.3a	41.0a	43.5a	49.9a	71.5b	81.7c
D	8.2a	11.6a	16.7a	19.8a	27.0a	38.5a	40.7a	45.9a	79.2a	93.4b
E	11.2a	15.1a	18.3a	21.4a	29.0a	34.8a	40.2a	45.7a	80.2a	99.0a
F	11.4a	15.3a	14.6a	19.3a	22.6b	28.7b	32.0b	35.3c	71.3b	89.6b
G	10.3a	14.7a	16.7a	22.9a	28.0a	34.2a	40.3a	46.3a	81.4a	99.7a
CV (%)	10.50

Cultivar	LP (%)	LS (%)
A*	13.46 D	4.27 B
B	14.10 C	4.20 B
C	15.34 B	3.60 C
D	16.13 A	4.58 A
E	16.19 A	4.47 A
F	18.56 A	4.26 B
G	15.18 B	4.35 B
CV (%)	1.93	4.01

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E-mail: ceres@ufv.br

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[1] *Corresponding author: juliaabati@yahoo.com.br

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Water uptake of soybean pods and seeds with different lignin contents1 This work is part of the Doctoral Thesis of the first author and received financial support from CAPES.

ABSTRACT

Water uptake of soybean pods and seeds with different lignin contents¹ This work is part of the Doctoral Thesis of the first author and received financial support from CAPES.