MORPHOLOGIC CHARACTERIZATION USING LINEAR DIMENSIONS ON THE BIOMETRIC ATTRIBUTES IN SEEDS OF <i>Annona reticulata</i> (L.) Vell. (ANNONACEAE)

Pontes, Montcharles da Silva; Santiago, Etenaldo Felipe; Nobrega, Michele Aparecida dos Santos; Freitas, Vanessa de Mauro Barbosa

doi:10.5902/1980509832070

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Artigos • Ciênc. Florest. 28 (2) • Apr-Jun 2018 • https://doi.org/10.5902/1980509832070 linkcopy

MORPHOLOGIC CHARACTERIZATION USING LINEAR DIMENSIONS ON THE BIOMETRIC ATTRIBUTES IN SEEDS OF Annona reticulata (L.) Vell. (ANNONACEAE)

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ABSTRACT

Differences in seed morphology may indicate variability within and among plant populations. Seeds of Annona reticulata Vell., Annonaceae were biometrically characterized, came from the Rio Brilhante region, Mato Grosso do Sul state, in a fragmented area of Cerrado biome, in which the seeds were collected randomly from six different individuals. It was investigated a sum of 150 seeds, isolated into three clusters of 50 seeds. Using the statistical theory of small samples, were assessed the biometrical and physical variables of seeds regarding the length, width, thickness, seed volume index, geometric diameter means, equivalent and arithmetic, surface area, volume, sphericity and aspect ratio of the seeds. The results were compared with the Student’s t test, Kolmogorov-Smirnov’s test, and Spearman’s correlation coefficient (p<0,001). It was found that the amplitude fluctuations show a bigger proximity between the means of geometric and equivalent diameters (p>0,005), and a greater distance to the arithmetic diameter mean of Annona reticulata seeds. The seed volume index, the geometric diameter means, equivalent and arithmetic, surface area and seed volume showed correlation with all evaluated parameters. The observed variations suggest that seeds are not alike in their linear dimensions, which can be associated with morphological variability of the studied seeds.

Keywords: biometry; physical properties; seeds; morphological variability

Tabela 1: Valores estimados dos parâmetros avaliados e significância das diferenças analisados pelo teste t de Student.

Parâmetros	Mín	Média ± Desvio Padrão	Máx	CV(%)	± 95% IC	P
C (mm)	9,9	13,3289 ± 1,947311*	15,9	0,146107	13,14994-13,50606	**
L (mm)	5,4	6,9267 ± 1,972868*	8,1	0,284822	6,842703-7,010630	**
E (mm)	3,2	4,5333 ± 1,716618*	5,9	0,378666	4,452335-4,614332	**
IVS (%)	243,9	417,6311 ± 59,25902^ns	558,0	0,141893	7,399307-7,515820	**
DMG (mm)	6,24	7,458 ± 0,361077^ns	8,23	0,048418	7,399307-7,515820	*
DME (mm)	6,48	7,582 ± 0,35253*	8,38	0,046498	7,524792-7,638520	*
DMA (mm)	7,20	8,263 ± 0,407314*	9,06	0,049296	8,196950- 8,328383	**
A_s(mm²)	122,6	175,1 ± 16,7489^ns	212,9	0,095639	172,4250-177,8296	**
V (mm³)	142,9	229,6 ± 31,26^ns	308,8	0,136158	224,6036-234,6913	**
Ø(%)	45,79	56,26 ± 4,43876^ns	72,89	0,078904	55,53909-56,97140	**
R_a	0,36	0,5238 ± 0,062991^ns	0,73	0,120266	0,5136024-0,5339285	**

Tabela 2: Matriz dos coeficientes de correlação de Spearman para as variáveis biométricas e físicas das sementes de Annona reticulata (L.) Vell.

	C	L	E	IVS	DMG	DME	DMA	A_S	V	Ø	R_a
C	1.000
L	-0,065^ns	1.000
E	-0,105^ns	-0,076^ns	1.000
IVS	0,442**	0,378**	0,628**	1.000
DMG	0,442**	0,378**	0,628**	1.000	1.000
DME	0,466**	0,524**	0,472**	0,973**	0,846**	1.000
DMA	0,819**	0,278**	0,254**	0,846**	0846**	0,872**	1.000
ÁS	0,442**	0,378**	0,628**	1.000	1.000	0,973**	0,846**	1.000
V	0,467**	0,524**	0,472**	0,973**	0,973**	1.000	0,872**	0,973**	1.000
Ø	-0,750**	0,310**	0,673**	0,156*	0,156*	0,110^ns	-0,328**	0,156*	0,109^ns	1.000
Ra	-0,737**	0,671**	0,024^ns	-0,080^ns	-0,080^ns	-0,004^ns	-0,393**	-0,080^ns	-0,004^ns	0,765**	1.000

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Acessibilidade / Reportar erro

[TFN1] Em que: Em colunas, apresentam distribuição normal pelo teste de Kolmogorov-Smirnov a 1% de probabilidade; ns = Apresentou ausência de distribuição normal pelo teste de Kolmogorov-Smirnov a 1% de probabilidade; C = comprimento; L = largura; E = espessura; IVS = índice de volume das sementes; DMG = diâmetro médio geométrico; DME = diâmetro médio equivalente; DMA = diâmetro médio aritmético; As = área superficial; V = volume; Ø = esfericidade; Ra = relação de aspecto; CV = coeficiente de variação; IC = intervalo de confiança; p = nível de significância pelo teste t de Student.