Agronomic performance and genetic dissimilarity among cherry tomato genotypes

Maciel, Gabriel M; Finzi, Rafael R; Carvalho, Fábio J; Marquez, Guilherme R; Clemente, Andressa A

doi:10.1590/S0102-053620180203

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Research • Hortic. Bras. 36 (2) • Apr-Jun 2018 • https://doi.org/10.1590/S0102-053620180203 copy

Agronomic performance and genetic dissimilarity among cherry tomato genotypes

Desempenho agronômico e dissimilaridade genética entre genótipos de tomate cereja

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The genotypes evaluation in a germplasm bank is essential to determine their commercial or usefulness, as potential parents, in a breeding program. We aimed to detect the genetic diversity of 42 tomato genotypes of cherry type, belonging to the germplasm bank of the Federal University of Uberlândia and, also evaluate their behavior. The experiment was conducted in a greenhouse in randomized block design with 42 treatments and two replications. Ten quantitative traits of agronomic importance were evaluated. The genetic divergence was obtained by multivariate analysis, using the Mahalanobis distance with different clustering methods (UPGMA and Tocher). The hybrids performance was compared by Scott-Knott (p= 0.05) and Dunnett’s test (p= 0.05). UPGMA and Tocher grouped the genotypes similarly, representing genetic divergence satisfactorily. The genotypes UFU 29, UFU 21 and UFU 07 were more productive, earlier and also divergent from the pre-commercial treatment (UFU 200), being able to be used as potential parents.

Keywords:
Solanum lycopersicum; variability; grape tomato

Genotypes	TCFL (ICC)	TCFR (ICC)	SD (mm)	SSC (ºBrix)	FD (mm)	NF (fruit pl^-1)	P (g pl^-1)	AFW (g)	PI (%)
UFU 01	48.8 b+	52.7 a	6.1 d+	6.3 a	23.3 b	57.0 a+	551.6 a+	9.8 c	28.9 a
UFU 02	55.8 b	52.0 a	5.3 e+	6.9 a	22.6 b	43.4 a	376.5 b	8.6 c	48.7 a+
UFU 03	62.4 a	56.3 a	6.2 d+	5.7 a	26.7 a	44.9 a	408.8 a	9.1 c	29.4 a
UFU 04	60.7 a	56.4 a	5.3 e+	6.8 a	25.9 a	34.8 a	366.0 b	10.5 c	34.1 a
UFU 05	57.5 a	54.9 a	6.5 d+	7.0 a	24.3 b	42.7 a	438.7 a	10.6 c	40.1 a+
UFU 06	55.5 b	53.7 a	6.5 d+	6.4 a	23.5 b	49.8 a+	514.2 a+	10.2 c	32.6 a
UFU 07	55.0 b	48.7 b	6.0 d+	5.3 a	28.3 a	46.8 a+	484.4 a+	11.0 b	42.4 a+
UFU 08	60.9 a	47.4 b	6.7 d+	5.6 a	27.7 a	30.0 a	302.8 b	10.2 c	53.3 a+
UFU 09	59.7 a	59.8 a	6.0 d+	5.5 a	24.0 b	51.5 a+	449.7 a+	8.7 c	24.0 a
UFU 10	60.5 a	58.6 a	5.8 d+	6.4 a	24.0 b	51.6 a+	474.1 a+	9.2 c	31.0 a
UFU 11	59.1 a	52.3 a	5.5 e+	5.9 a	23.2 b	33.5 a	284.5 b	8.6 c	53.8 a+
UFU 12	55.0 b	51.6 a	6.1 d+	5.1 a	29.3 a	32.3 a	436.1 a	13.7 a	42.7 a+
UFU 13	57.3 a	56.0 a	7.4 c+	6.2 a	25.7 a	48.6 a+	411.4 a	8.5 c	28.8 a
UFU 14	58.2 a	52.2 a	5.4 e+	4.8 a	29.5 a	32.9 a	482.9 a+	14.7 a	33.1 a
UFU 15	59.0 a	50.6 b	6.5 d+	6.4 a	24.9 b	31.4 a	357.9 b	11.5 b	47.2 a+
UFU 16	58.9 a	51.4 a	5.3 e+	5.7 a	26.5 a	30.7 a	433.7 a	14.2 a	40.6 a+
UFU 17	55.4 b	55.2 a	5.1 e+	6.2 a	25.2 b	48.3 a+	556.9 a+	11.5 b	39.4 a+
UFU 18	55.8 b	49.2 b	5.0 e+	5.5 a	26.5 a	36.5 a	427.4 a	11.8 b	43.9 a+
UFU 19	56.4 b	51.9 a	5.1 e+	5.7 a	27.4 a	34.0 a	393.2 b	11.6 b	39.4 a+
UFU 20	56.4 b	53.2 a	6.7 d+	5.0 a	27.8 a	38.6 a	304.2 b	8.0 c	27.3 a
UFU 21	51.4 b	46.9 b	5.5 e+	5.5 a	28.6 a	43.1 a	527.2 a+	12.3 b	52.5 a+
UFU 22	52.2 b	48.2 b	7.1 c+	6.2 a	23.5 b	38.7 a	397.4 b	10.4 c	34.9 a
UFU 23	51.8 b	45.5 b	7.0 c+	6.8 a	25.5 a	37.7 a	383.8 b	10.3 c	30.3 a
UFU 24	53.4 b	55.8 a	8.2 b+	7.3 a+	24.2 b	51.7 a+	416.4 a	8.1 c	18.0 a
UFU 25	50.8 b	48.2 b	6.6 d+	6.8 a	23.6 b	43.4 a	356.1 b	8.3 c	26.0 a
UFU 26	52.1 b	43.2 b	5.7 e+	8.3 a+	22.0 b	49.3 a+	400.4 b	8.1 c	30.7 a
UFU 27	52.2 b	40.7 b+	8.3 b+	6.7 a	24.8 b	43.5 a	326.1 b	7.4 c+	36.5 a+
UFU 28	60.6 a	56.8 a	6.2 d+	6.6 a	23.6 b	32.7 a	319.0 b	9.8 c	31.9 a
UFU 29	54.2 b	49.2 b	6.6 d+	5.9 a	22.9 b	42.5 a	497.3 a+	11.8 b	43.3 a+
UFU 30	48.4 b+	53.2 a	6.1 d+	5.5 a	26.4 a	22.8 a	331.0 b	14.4 a	12.9 a
UFU 31	60.8 a	57.0 a	5.7 e+	6.1 a	23.5 b	29.5 a	267.9 b	9.0 c	26.8 a
UFU 32	63.0 a	55.3 a	5.4 e+	6.4 a	23.3 b	35.5 a	313.2 b	8.7 c	30.3 a
UFU 33	60.5 a	55.9 a	5.5 e+	5.6 a	24.5 b	32.4 a	304.3 b	10.4 c	32.9 a
UFU 34	57.5 a	56.5 a	5.1 e+	6.0 a	23.4 b	39.2 a	372.3 b	9.4 c	45.4 a+
UFU 35	61.9 a	49.0 b	6.2 d+	6.8 a	23.6 b	33.3 a	281.5 b	8.5 c	28.2 a
UFU 36	59.8 a	54.7 a	5.1 e+	5.7 a	24.3 b	41.4 a	339.8 b	8.3 c	32.4 a
UFU 37	56.2 b	58.4 a	6.2 d+	5.5 a	22.7 b	38.6 a	383.1 b	9.9 c	27.8 a
UFU 38	62.8 a	45.4 b	4.5 e+	5.8 a	23.1 b	38.5 a	382.9 b	9.9 c	43.4 a+
UFU 39	59.8 a	57.6 a	6.1 d+	5.8 a	25.4 b	34.6 a	336.2 b	10.4 c	27.8 a
UFU 40	59.8 a	48.9 b	7.1 c+	6.5 a	26.4 a	44.9 a	358.6 b	7.9 c	27.8 a
UFU 41	53.5 b	50.3 a	6.3 d+	6.5 a	23.9 b	46.7 a+	489.1 a+	10.5 c	48.6 a+
UFU 200	61.0 a	52.3 a	10.3 a	4.9 a	25.6 a	17.8 a	213.7 b	12.2 b	3.5 a
CV(%)	5.69	6.65	7.65	11.94	6.27	21.23	18.44	13.36	29.23

Groups	Genotypes
I	UFU 18, UFU 19, UFU 17, UFU 16, UFU 05, UFU 39,
	UFU 06, UFU 10, UFU 36, UFU 09, UFU 03, UFU 04,
	UFU 28, UFU 32, UFU 34, UFU 37, UFU 31, UFU 11,
	UFU 02, UFU 41, UFU 33, UFU 15, UFU 35, UFU 38,
	UFU 12, UFU 20, UFU 01, UFU 29, UFU 13, UFU 07,
	UFU 08, UFU 40, UFU 21, UFU 14, UFU 22, UFU 25,
	UFU 23, UFU 26, UFU 24
II	UFU 30
III	UFU 27
IV	UFU 200 (check treatment)

Characteristics¹	S.j	S.j (%)
TCFL	4666.82	11.44
TCFR	5598.90	13.73
SD	12469.63	30.58
LI	2275.63	5.58
SSC	1376.62	3.38
FD	3226.28	7.91
NF	54.72	0.13
P	4208.96	10.32
AFW	3996.88	9.80
PI	2909.55	7.13

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[TFN1] Averages followed by different letters, in column, differ from each other by Scott-Knott test, 0.05. +differ from check treatment by the Dunnett test, 0.05.