<i>Limonium brasiliense</i> (Boiss.) Kuntze Seeds: Disinfestation and Conservation of Viability Under Storage

Gastmann, Julia; Avrella, Eduarda Demari; Winhelmann, Mara Cíntia; Hoehne, Lucélia; Freitas, Elisete Maria de; Fior, Claudimar Sidnei

doi:10.1590/2179-8087-FLORAM-2021-0093

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ORIGINAL ARTICLE, Silviculture • Floresta Ambient. 29 (3) • 2022 • https://doi.org/10.1590/2179-8087-FLORAM-2021-0093 copy

Limonium brasiliense (Boiss.) Kuntze Seeds: Disinfestation and Conservation of Viability Under Storage

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

This study evaluated the effect of disinfestation methods and different storage environments on the germination of seeds of Limonium brasiliense (Boiss.) Kuntze. Seeds were disinfested using ethanol followed by sodium hypochlorite; water under agitation; and no disinfestation from two origins. Longevity was tested by storing the seeds in a cold chamber, dry chamber, and at ambient laboratory temperature. Beginning of germination (BG), percentage (%G), and mean germination time (MGT) and mean germination speed index (MGSI) were evaluated. Data were submitted to an analysis of variance, comparison of mean values and a polynomial regression analysis (p<0.05). In the disinfestation, there was significant difference in %G and MGT only between origins. For longevity, IG and MGSI had a positive and negative linear behavior, respectively, while %G had a quadratic behavior. L. brasiliense seeds disinfestation does not affect germination. Dry chamber was the most suitable storage environment.

Keywords:
Germination; Plumbaginaceae; therapeutic potential; seed propagation

		%G	MGT (days)	BG (days)
Origin	A1	15.14 b	16.33 b	10.25 a
Origin	A3	36.42 a	20.87 a	7.33 a
Disinfestation method	Standard	27.98 a	19.98 a	9.50 a
	Water	27.22 a	15.61 a	7.63 a
	No disinfestation	22.15 a	20.22 a	9.25 a

Storage environment	Storage time (days)	Beginning of germination (days)	Germination percentage (%)	Mean germination speed index	Mean germination time (days)
Cold chamber	90	10,83	27,67	0,05342	10,83
Cold chamber	150	11,75	29,84	0,04492	11,75
Cold chamber	210	11,50	25,73	0,05317	11,50
Cold chamber	270	14,04	28,46	0,04550	14,04
Cold chamber	395	-	0	-	-
Cold chamber	478	-	0	-	-
Cold chamber	564	-	0	-	-
Dry chamber	90	8,83	24,40	0,07125	8,83
Dry chamber	150	13,21	41,55	0,04013	13,21
Dry chamber	210	13,25	26,27	0,04992	13,25
Dry chamber	270	12,25	25,85	0,04858	12,25
Dry chamber	395	13,17	23,07	0,05358	13,17
Dry chamber	478	15,50	24,15	0,04625	15,50
Dry chamber	564	14,00	24,60	0,04850	14,00
Ambient temperature	90	10,58	23,55	0,06142	10,58
Ambient temperature	150	11,75	28,34	0,05292	11,75
Ambient temperature	210	13,00	25,55	0,04842	13,00
Ambient temperature	270	11,25	22,50	0,04717	11,25
Ambient temperature	395	13,75	22,58	0,05325	13,75
Ambient temperature	478	19,00	25,00	0,04550	19,00
Ambient temperature	564	16,13	24,30	0,02788	16,13

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[1] CORRESPONDENCE TOJulia Gastmann Av. Avelino Talini, 171, Universitário, 95914-014, Lajeado, RS, Brasil. e-mail: julia.gastmann@universo.univates.br