SELECTION AMONG SEGREGATING PEPPER PROGENIES WITH ORNAMENTAL POTENTIAL USING MULTIVARIATE ANALYSES<sup/>

CARVALHO, MICHELLE GONÇALVES DE; RÊGO, ELIZANILDA RAMALHO DO; COSTA, MARIA DO PERPETUO SOCORRO DAMASCENO; PESSOA, ANGELA MARIA DOS SANTOS; RÊGO, MAILSON MONTEIRO DO

doi:10.1590/1983-21252021v34n304rc

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Article • Rev. Caatinga 34 (3) • Jul-Sep 2021 • https://doi.org/10.1590/1983-21252021v34n304rc copy

SELECTION AMONG SEGREGATING PEPPER PROGENIES WITH ORNAMENTAL POTENTIAL USING MULTIVARIATE ANALYSES¹ 1 Received for publication in 06/08/2020; accepted in 03/11/2021. Paper extracted from the master’s dissertation of the first author.

SELEÇÃO ENTRE PROGÊNIES SEGREGANTES DE PIMENTEIRAS COM POTENCIAL ORNAMENTAL UTILIZANDO ANÁLISES MULTIVARIADAS

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Peppers belong to the family Solanaceae and can be used for several different purposes. The use of morphological descriptors associated with multivariate techniques allows identifying pepper progenies that can be recommended for ornamental purposes. This study aimed to select segregating Capsicum annum progenies based on multivariate analyses. The study was conducted in a plant nursery at the Biotechnology and Plant Breeding Sector of the Center of Agricultural Sciences of the Federal University of Paraíba (CCA/UFPB). Twenty F₃ progenies of ornamental peppers were used, namely: UFPB 5, 8, 10, 15, 18, 22, 25, 32, 33, 36, 40, 42, 49, 56, 60, 62, 64, 69, 75, and 77, plus four additional controls consisting of the parents UFPB 77.3 and UFPB137 and two commercial cultivars, Etna and Pirâmide. Seventeen plant and fruit traits were evaluated. The experimental design was completely randomized. The data were subjected to a multivariate analysis of variance. All analyses were performed with the software R, version 3.0.3. The results of the multivariate analysis of variance highlighted significant differences between the populations of ornamental peppers. Singh’s (1981) method made it possible to determine that eleven of the seventeen traits studied contributed with 73.7% of the genetic divergence, whereas six traits contributed with only 21.2%. There is genetic diversity among the evaluated progenies. Progenies 5, 10, 22, 33, 49, and 69 are recommended for selection for having ornamental traits for in-pot cultivation. Selection within these progenies is recommended to continue the breeding program of ornamental peppers for in-pot cultivation.

Keywords:
Capsicum ; Breeding; Variability

Genotypes/UFPB	Traits
Genotypes/UFPB	AP	AC	APB	DCAU	CFO
77.3	32.25	35.12	15.87	0.63	5.68
137	22.68	30.50	10.68	0.73	5.86
77.3 X 137	21.25	28.81	10.00	0.63	5.11
Genotypes /UFPB			Traits
Genotypes /UFPB	LFO	PFR	CF	NS	NF
77.3	1.87	0.33	0.99	29.00	119.37
137	1.83	1.76	2.28	61.00	42.62
77.3 X 137	1.64	1.73	2.43	50.50	68.00

S.V.	DOF	Pillai statistics	F statistics	DOF Num	DOF Den	p value
Populations	23	5.1	8.2	391	7412	2.2 10^-16; ***
Residuals	436

Canonical variables	Eigenvalues	Eigenvalues %	Cumulative %
CV1	10.75	48.40	48.40
CV2	4.34	19.53	67.93
CV3	2.52	11.36	79.29
CV4	1.58	7.11	86.41
CV5	0.75	3.41	89.82
CV6	0.55	2.47	92.30
CV7	0.48	2.18	94.48
CV8	0.45	2.03	96.51
CV9	0.26	1.19	97.71
CV10	0.18	0.84	98.56
CV11	0.12	0.54	99.10
CV12	0.08	0.38	99.48
CV13	0.05	0.23	99.71
CV14	0.03	0.16	99.87
CV15	0.01	0.05	99.93
CV16	0.01	0.04	99.98
CV17	0.01	0.02	100.00

Traits	CAN1	CAN2	CAN3
AP	0.01	0.23	-0.43
AC	-0.07	0.12	-0.44
APB	-0.06	0.36	0.24
DCAU	-0.03	-0.04	0.43
CFO	-0.33	-0.58	0.27
LFO	0.01	0.13	-0.23
CPE	0.24	0.56	0.09
PF	0.06	-0.13	0.37
CF	-0.12	0.04	-0.04
MEDF	0.69	-0.31	-0.29
MADF	0.33	-0.01	-0.14
EP	0.09	0.17	-0.05
CPLA	-0.13	0.55	0.59
MF	0.60	-0.62	-0.07
NS	-0.60	0.07	-0.11
MS	-0.44	0.11	0.06
NF	-0.26	-0.13	-0.29

Family	AP	AC	APB	DCAU	CFO	LFO	CPE	PF		CF
5	25.10	28.83	10.15	0.66	3.74	1.68	1.37	1.16		1.56
8	33.10	32.50	14.45	0.71	4.31	1.78	1.24	0.75		1.22
10	21.10	26.35	8.46	0.80	3.59	1.51	0.99	0.77		1.27
15	29.65	32.38	12.05	0.79	4.16	1.88	0.93	0.62		1.20
18	34.55	30.23	14.00	0.81	4.11	1.84	1.01	0.54		1.03
22	20.83	28.16	9.20	0.51	3.22	1.52	0.98	0.92		1.33
25	27.80	28.60	14.25	0.73	4.05	1.75	1.20	0.66		1.03
32	29.95	29.13	12.90	0.77	3.91	1.71	0.86	0.53		0.92
33	21.75	24.03	10.55	0.76	3.60	1.63	0.90	0.65		1.02
36	32.93	31.63	13.77	0.75	4.11	1.76	1.01	0.74		1.30
40	27.08	27.68	11.83	0.80	4.17	1.68	1.19	0.73		1.14
42	27.25	27.70	13.45	0.71	3.65	1.58	0.86	0.55		1.02
49	23.40	24.80	10.68	0.67	3.09	1.35	1.12	0.74		1.28
56	28.15	27.70	14.43	0.75	3.84	1.77	1.09	0.67		1.09
60	29.28	27.13	15.30	0.78	3.63	1.64	0.98	0.51		1.06
62	32.65	30.88	15.80	0.69	3.52	1.57	1.11	0.59		1.26
64	29.60	28.63	14.13	0.76	3.48	1.50	0.85	0.36		0.71
69	24.50	28.20	12.15	0.76	4.03	1.81	1.21	0.83		1.45
75	36.30	30.38	17.58	0.85	4.50	2.04	1.24	0.54		1.18
77	29.70	31.03	11.05	0.73	4.23	1.85	1.02	0.95		1.32
UFPB77.3	45.80	40.13	15.33	0.58	1.94	0.99	2.01	0.24		0.75
Etna	28.13	23.73	20.23	0.74	2.05	1.03	2.63	1.10		2.03
Pirâmide	23.47	26.67	8.97	0.60	2.21	1.10	1.83	2.32		1.92
UFPB137	25.73	25.40	11.83	0.60	1.10	1.38	1.96	0.80		1.42
Family	MDF	MEDF	EP	CPLA	MF	NS	MS		NF
5	0.82	0.40	0.07	1.07	0.90	28.00	0.14		63.90
8	0.65	0.33	0.04	0.84	0.49	35.00	0.08		124.60
10	0.63	0.31	0.06	0.90	0.60	26.00	0.09		98.05
15	0.51	0.26	0.04	0.82	0.40	24.00	0.07		164.05
18	0.53	0.29	0.06	0.70	0.39	25.00	0.07		118.15
22	0.80	0.39	0.05	0.96	0.61	31.00	0.09		93.00
25	0.69	0.37	0.05	0.71	0.48	26.00	0.08		108.90
32	0.50	0.27	0.05	0.62	0.38	24.00	0.06		129.05
33	0.58	0.30	0.06	0.73	0.49	26.00	0.08		109.55
36	0.56	0.29	0.05	0.92	0.53	25.00	0.09		144.10
40	0.65	0.34	0.05	0.84	0.51	30.00	0.09		98.90
42	0.51	0.27	0.04	0.70	0.36	26.00	0.06		154.05
49	0.60	0.29	0.08	0.83	0.57	32.00	0.08		155.15
56	0.57	0.29	0.05	0.71	0.48	27.00	0.07		128.85
60	0.55	0.28	0.05	0.71	0.37	24.00	0.06		149.25
62	0.51	0.26	0.04	0.81	0.45	19.00	0.07		115.10
64	0.50	0.31	0.05	0.49	0.25	21.00	0.05		169.20
69	0.56	0.26	0.07	1.08	0.63	23.00	0.10		109.25
75	0.55	0.29	0.04	0.79	0.36	25.00	0.07		103.25
77	0.63	0.29	0.04	0.90	0.73	23.00	0.11		93.30
UFPB77.3	0.66	0.41	0.07	0.52	0.16	17.00	0.04		116.40
Etna	0.81	0.40	0.08	1.60	0.73	29.00	0.12		18.00
Pirâmide	1.65	0.73	0.14	1.16	0.87	29.00	0.20		25.13
UFPB137	1.06	0.50	0.11	0.93	0.67	30.00	0.07		48.93

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SELECTION AMONG SEGREGATING PEPPER PROGENIES WITH ORNAMENTAL POTENTIAL USING MULTIVARIATE ANALYSES1 1 Received for publication in 06/08/2020; accepted in 03/11/2021. Paper extracted from the master’s dissertation of the first author.

SELEÇÃO ENTRE PROGÊNIES SEGREGANTES DE PIMENTEIRAS COM POTENCIAL ORNAMENTAL UTILIZANDO ANÁLISES MULTIVARIADAS

ABSTRACT

SELECTION AMONG SEGREGATING PEPPER PROGENIES WITH ORNAMENTAL POTENTIAL USING MULTIVARIATE ANALYSES¹ 1 Received for publication in 06/08/2020; accepted in 03/11/2021. Paper extracted from the master’s dissertation of the first author.