Desempenho agronômico e estabilidade produtiva de genótipos de linho amarelo no estado de Santa Catarina, Brasil

Fioreze, Ana Carolina da Costa Lara; Konkol, Ana Caroline Basniak; Krassmann, Karol Anne; Orsi, Nicole; Parizotto, Cirio; Fioreze, Samuel Luiz

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Crop Science / Original Article • Pesq. agropec. bras. 58 • 2023 • https://doi.org/10.1590/S1678-3921.pab2023.v58.03349 copiar

Desempenho agronômico e estabilidade produtiva de genótipos de linho amarelo no estado de Santa Catarina, Brasil

Autoria SCIMAGO INSTITUTIONS RANKINGS

Resumo

O objetivo deste trabalho foi avaliar o desempenho e a estabilidade produtiva de genótipos de linhaça amarela, bem como identificar os melhores para seleção. Dezenove linhagens e uma variedade local foram cultivadas nas safras de 2018, 2019 e 2020, em dois ambientes (munícipios) no estado de Santa Catarina, Brasil. Foram determinados número de cápsulas por planta, rendimento de plantas, rendimento de grãos e estande final. Os dados foram analisados entre genótipos dentro de cada ambiente e entre ambientes dentro dos genótipos. As interações genótipo × ambiente foram avaliadas por análise conjunta, em que foram estimados os parâmetros de estabilidade e adaptabilidade. Também foram estimadas as correlações entre o estande final de plantas e os componentes da produção. Há alta variabilidade no desempenho produtivo entre os genótipos. As interações genótipo × ambiente influenciaram as características das plantas. Deve-se considerar o efeito de fatores relacionados ao solo, ao clima e à densidade populacional sobre o número de cápsulas e o peso de grãos. Os genótipos de linho apresentam elevados rendimentos médios de grãos em todos os ambientes. A análise de estabilidade e adaptabilidade revela que os genótipos LINPG87 e LINPG88 se destacam em desempenho e estabilidade de produção.

Termos para indexação
Linum usitatissimum; correlação; cultivares; interação genética

Source of variation	Degrees of freedom	NCP	Plant yield	Grain yield
Genotype (G)	19	1,051.8^ Significant by the F-test at p ≤ 0.05 and p ≤ 0.01, respectively.	2.1^ Significant by the F-test at p ≤ 0.05 and p ≤ 0.01, respectively.	318,367.6^* * and
Environment (E)	3	13,808.4^ Significant by the F-test at p ≤ 0.05 and p ≤ 0.01, respectively.	60.6^ Significant by the F-test at p ≤ 0.05 and p ≤ 0.01, respectively.	44,495,203.3^ Significant by the F-test at p ≤ 0.05 and p ≤ 0.01, respectively.
G × E	57	786.5^ Significant by the F-test at p ≤ 0.05 and p ≤ 0.01, respectively.	2.1^ Significant by the F-test at p ≤ 0.05 and p ≤ 0.01, respectively.	266,777.6^* * and
Error	152	289.4	0.9	173,358.2

Genetic parameters	NCP	Plant yield	Grain yield
Coefficient of variation (%)	26.2	35.4	18.2
Overall mean	64.8	2.6	2,286.5
Genotypic variance	63.5	0.1	12,084.1
Genotype × environment variance	124.3	0.3	23,354.8
Heritability	0.73	0.58	0.46

Genotype	Plant yield (g per plant)				Grain yield (kg ha-¹ (1) A local variety. )
Genotype	CB2018	CB2019	CB2020	CN2020	CB2018	CB2019	CB2020	CN2020
Common yellow⁽¹⁾	1.2	2.3	3.3	2.3	725.5	2,554.9	2,984.5	2,289.8
LINPG10	1.7	2.0	2.9	1.8	1,048.4	3,386.4	2,605.5	2,492.5
LINPG35	1.4	2.2	3.7	2.5	786.3	2,860.0	2,795.9	2,105.7
LINPG42	2.0	3.3⁽²⁾	2.8	1.6	892.3	2,369.3	2,782.9	2,046.7
LINPG49	1.4	2.8	6.4⁽²⁾	3.4	877.4	2,889.7	3,902.7⁽²⁾	2,315.7
LINPG50	1.1	2.1	2.8	2.2	855.2	2,841.0	2,650.8	2,746.7
LINPG57	1.0	2.0	5.5	4.4⁽²⁾	908.8	2,866.0	3,022.6	2,675.9
LINPG66	1.1	2.6	3.9	3.0	787.0	3,565.8⁽²⁾	2,953.5	1,972.5
LINPG70	1.8	2.6	4.7	4.0	1,105.5	2,588.5	3,085.3	2,761.8⁽²⁾
LINPG76	1.8	2.0	4.6	3.6	1,036.4	2,802.4	2,833.9	2,401.8
LINPG87	1.2	2.7	5.7	2.2	1,077.2	2,956.9	3,364.3	2,480.6
LINPG88	2.3⁽²⁾	2.4	4.4	2.2	1,286.4	3,144.8	3,474.3	2,340.2
LINPG89	1.5	2.1	4.7	2.9	1,564.1	3,052.2	2,951.2	2,239.6
LINPG95	1.6	2.9	2.7	1.8	1,454.4	2,993.5	2,272.2	2,124.9
LINPG96	2.1	2.3	2.9	2.2	1,696.0⁽²⁾	2,834.3	3,058.8	2,281.0
LINPG100	1.1	2.0	4.9	2.0	949.3	2,635.1	2,455.3	2,229.6
LINPG102	1.4	2.3	2.5	2.4	895.4	3,001.8	2,981.0	2,347.5
LINPG109	1.8	2.2	3.5	2.5	1,571.9	2,450.7	2,610.6	2,014.1
LINPG111	1.4	2.1	4.2	3.7	778.7	2,684.3	2,984.5	2,529.0
LINPG113	1.6	2.3	2.7	2.7	836.0	2,696.4	2,345.1	2,104.5
Mean	1.5	2.4	4.0	2.7	1,074.0	2,874.7	2,901.6	2,326.9

Environment/ Year	Sowing density (seeds m^-2)	Final stand (plants m^-2)
Environment/ Year	Sowing density (seeds m^-2)	Minimum	Average	Maximum
Curitibanos/ 2018	147	52	75	98
Curitibanos/ 2019	294	81	126	171
Curitibanos/ 2020	294	55	88	120
Campos Novos/ 2020	294	61	106	151

Environment/ Year	Phenotypic correlation
Curitibanos 2018		NCP	PY	GY
	FS	-0.61^* * Significant by the t-test at 5% probability.	-0.20^ns ns Nonsignificant.	0.58^* * Significant by the t-test at 5% probability.
	NCP		0.58^* * Significant by the t-test at 5% probability.	0.01^ns ns Nonsignificant.
	PY			0.58^* * Significant by the t-test at 5% probability.
Curitibanos 2019		NCP	PY	GY
	FS	-0.74^* * Significant by the t-test at 5% probability.	0.78^* * Significant by the t-test at 5% probability.	0.68^* * Significant by the t-test at 5% probability.
	NCP		0.96^* * Significant by the t-test at 5% probability.	-0.11^ns ns Nonsignificant.
	PY			-0.15^ns ns Nonsignificant.
Curitibanos 2020		NCP	PY	GY
	FS	-0.87^* * Significant by the t-test at 5% probability.	-0.87^* * Significant by the t-test at 5% probability.	-0.28^ns ns Nonsignificant.
	NCP		0.99^* * Significant by the t-test at 5% probability.	0.63^* * Significant by the t-test at 5% probability.
	PY			0.65^* * Significant by the t-test at 5% probability.
Campos Novos 2020		NCP	PY	GY
	FS	-0.84^* * Significant by the t-test at 5% probability.	-0.87^* * Significant by the t-test at 5% probability.	-0.16^ns ns Nonsignificant.
	NCP		0.98^* * Significant by the t-test at 5% probability.	0.44^* * Significant by the t-test at 5% probability.
	PY			0.45^* * Significant by the t-test at 5% probability.

	NCP	PY	GY
FS	-0.79^ Significant by the t-test at 5 and 1% probability, respectively.	-0.75^ Significant by the t-test at 5 and 1% probability, respectively.	0.13^ns ns Nonsignificant.
NCP		0.95^ Significant by the t-test at 5 and 1% probability, respectively.	0.41^* * and
PY			0.46^ Significant by the t-test at 5 and 1% probability, respectively.

Genotype	GY (kg ha^-1)	P_i	P_i+	P_i-	G (%)	G × E (%)
LINPG88	2563.7	86721	First	-	99.9	0.0
LINPG87	2463.9	142986	Third	-	93.2	6.8
LINPG49	2488.9	169899	Second	-	71.0	29.0
LINPG89	2451.1	180892	-	Third	77.3	22.7
LINPG96	2465.5	184763	-	First	71.7	28.3
LINPG57	2369.5	234012	-	-	79.7	20.3
LINPG102	2306.4	245006	-	-	92.6	7.4
LINPG70	2384.8	245796	-	-	72.1	27.9
LINPG10	2389.8	266002	-	-	65.5	34.5
LINPG76	2259.1	292512	-	-	88.9	11.1
LINPG66	2317.8	294182	-	-	74.6	25.4
LINPG111	2246.9	310610	-	-	86.5	13.5
LINPG50	2279.7	342007	-	-	71.7	28.3
LINPG35	2129.9	376588	-	-	96.0	4.0
Common yellow	2137.1	379150	-	-	93.7	6.3
LINPG95	2217.9	415645	-	-	69.9	30.1
LINPG109	2158.0	438920	-	Second	77.0	23.0
LINPG100	2088.9	449167	-	-	88.4	11.6
LINPG42	2011.1	492542	-	-	95.3	4.7
LINPG113	2000.5	532918	-	-	90.0	10.0

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[1] Corresponding author