Genetic divergence and physiological quality of dwarf castor bean lines seeds

Oliveira Neto, Sebastião Soares de; Ramos, Andréia Rodrigues; Oliveira, Carlos Eduardo da Silva; Silva, Edvaldo Aparecido Amaral da; Zanotto, Maurício Dutra

doi:10.1590/1983-40632022v5271010

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Pesquisa Agropecuária Tropical

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Research Article • Pesq. Agropec. Trop. 52 • 2022 • https://doi.org/10.1590/1983-40632022v5271010 copy

Genetic divergence and physiological quality of dwarf castor bean lines seeds

Divergência genética e qualidade fisiológica de sementes de linhagens de mamoneira anã

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The development of new castor bean genotypes with high grain yield and physiological seed quality is fundamental to the economic success of the crop. This study aimed to evaluate the agronomic performance and physiological quality of seeds of twelve castor bean lines, in order to determine superior genotypes. Plant height, insertion height and number of racemes, grain yield, oil content, germination percentage and vigor were evaluated. The dwarf castor bean lines H4, H5 and H11 were responsible for a grain yield above 1,400 kg ha^-1 and are, therefore, promising for getting new hybrids. The indirect selection of dwarf castor bean lines can be performed through morphologic traits. The lines H4, H6, H9, H11 and H12 produced seeds with superior vigor and germinative quality.

KEYWORDS:
Ricinus communis L; castor bean breeding; seed quality

pH	OM	P_resin	K	Ca	Mg	Al	H + Al	SB	CEC	Clay	Silt	Sand	V
pH	g dm^-3	mg dm^-3	^{________________________________} mmol_c dm^{-3 ________________________________}							^{___________________} %^{___________________}
5.0	9.0	9.0	0.2	5.0	2.0	0.0	13.0	7.0	20.0	9.5	5.0	85.5	35

Lines	PH (cm)	R1 (cm)	R2 (cm)	NR	Ø (cm)	GY (kg ha^-1)	OC (%)
H1	108.90 a	35.52 b	52.70 b	4.65 a	1.97 a	1,015 b	42.12 a
H2	113.25 a	40.67 a	59.92 a	4.20 a	2.05 a	1,225 b	43.37 a
H3	109.30 a	35.25 b	54.80 a	4.52 a	2.12 a	1,266 b	43.57 a
H4	112.32 a	34.15 b	56.92 a	4.90 a	2.17 a	1,586 a	43.17 a
H5	103.87 a	32.72 b	51.32 b	4.30 a	2.25 a	1,403 a	43.27 a
H6	103.25 a	32.36 b	51.62 b	4.42 a	2.16 a	1,191 b	43.22 a
H7	104.52 a	32.77 b	52.32 b	4.32 a	2.13 a	1,238 b	44.55 a
H8	101.52 a	32.80 b	49.85 b	4.15 a	2.19 a	1,241 b	43.62 a
H9	97.95 a	31.87 b	50.10 b	3.87 a	2.05 a	1,185 b	43.77 a
H10	108.62 a	35.97 b	56.57 a	4.13 a	2.19 a	1,202 b	44.80 a
H11	109.12 a	33.32 b	55.02 a	4.40 a	2.33 a	1,513 a	43.62 a
H12	107.02 a	32.35 b	51.97 b	4.60 a	2.07 a	1,307 b	43.97 a
Anova	^{_________________________________________________________________} F probability^{_________________________________________________________________}
Lines	1.55^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	4.50^* * Significant at 0.05 of probability;	2.41^* * Significant at 0.05 of probability;	0.96^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	0.96^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	2.90^* * Significant at 0.05 of probability;	1.02^ns ns not significant. Averages followed by the same letter in the column are not statistically different.
Blocks	11.54^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	5.27^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	7.54^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	14.37^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	2.32^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	61.44^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	0.68^ns ns not significant. Averages followed by the same letter in the column are not statistically different.
Average	106.63	34.15	53.60	4.37	2.14	1,281.35	43.59
Standard error	7.23	2.33	3.95	0.56	0.20	181.94	1.36
CV (%)	6.78	6.81	7.38	12.77	9.26	14.20	3.11

Lines	G (%)	GSI	RM (g)	SM (g)	TM (g)	RL (cm)	SL (cm)	TL (cm)
H1	64.00 b	0.232 b	0.030 b	0.015 c	0.045 b	9.50 a	1.24 a	10.74 a
H2	68.00 b	0.221 b	0.034 a	0.017 b	0.051 a	7.44 b	1.58 a	9.01 a
H3	78.66 a	0.212 b	0.037 a	0.013 c	0.050 a	7.39 b	1.04 b	8.43 a
H4	65.33 b	0.302 a	0.029 b	0.015 c	0.044 b	7.51 b	1.15 b	8.66 a
H5	61.33 b	0.223 b	0.036 a	0.015 c	0.051 a	8.91 a	1.32 a	10.23 a
H6	78.67 a	0.282 a	0.035 a	0.017 b	0.052 a	8.67 a	1.26 a	9.93 a
H7	56.00 b	0.235 b	0.030 b	0.015 c	0.045 b	7.98 b	1.31 a	9.29 a
H8	73.33 a	0.188 b	0.039 a	0.020 a	0.058 a	8.04 b	1.48 a	9.52 a
H9	84.00 a	0.260 a	0.035 a	0.018 b	0.052 a	7.39 b	1.27 a	8.65 a
H10	77.33 a	0.185 b	0.039 a	0.018 b	0.056 a	8.25 b	1.10 b	9.35 a
H11	64.00 b	0.265 a	0.036 a	0.015 c	0.051 a	7.70 b	1.13 b	8.82 a
H12	86.67 a	0.333 a	0.042 a	0.014 c	0.055 a	8.88 a	0.89 b	9.76 a
Anova	^{_______________________________________________________________} F probability^{_______________________________________________________________}
Lines	4.39^* * and	5.500^* * and	4.920^ significant at 0.05 and 0.01 of probability, respectively;	7.7800^ significant at 0.05 and 0.01 of probability, respectively;	2.160^* * and	2.39^* * and	3.56^ significant at 0.05 and 0.01 of probability, respectively;	1.840^ns ns not significant. Averages followed by the same letter in the column are not statistically different.
Blocks	1.26^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	1.740^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	0.170^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	0.2700^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	0.270^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	0.09^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	0.82^ns ns not significant. Averages followed by the same letter in the column are not statistically different.	0.170^ns ns not significant. Averages followed by the same letter in the column are not statistically different.
Average	71.44	0.245	0.035	0.0160	0.051	8.14	1.23	9.369
Standard error	9.25	0.038	0.002	0.0007	0.008	0.46	0.10	1.036
CV (%)	12.95	15.670	9.890	8.3200	12.350	11.28	16.63	11.060

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