SEED RESERVE MOBILIZATION EVALUATION FOR SELECTION OF HIGH-VIGOR COMMON BEAN CULTIVARS

PADILHA, MATHEUS SANTIN; COELHO, CILEIDE MARIA MEDEIROS; ANDRADE, GISIANE CAMARGO DE

doi:10.1590/1983-21252020v33n407rc

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Agronomy • Rev. Caatinga 33 (4) • Oct-Dec 2020 • https://doi.org/10.1590/1983-21252020v33n407rc copy

SEED RESERVE MOBILIZATION EVALUATION FOR SELECTION OF HIGH-VIGOR COMMON BEAN CULTIVARS

AVALIAÇÃO DA MOBILIZAÇÃO DE RESERVAS EM SEMENTES DE FEIJÃO PARA A SELEÇÃO DE CULTIVARES DE ALTO VIGOR

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The efficiency of seed reserve mobilization (SRM) can be affected by genotype characteristics and seed initial physiological quality, which are determinant for the choice of cultivars that present plants with high physiological performances. The objective of this study was to evaluate the SRM in different common bean cultivars with different vigor and determine the differences in this process between seed lots and cultivars. Six common bean cultivars were grown in the 2017-2018 and 2018-2019 crop seasons in Lages, Santa Catarina, Brazil. The physiological quality of the cultivars was defined by germination test, accelerated aging test, seedling length, and vigor index, establishing two vigor groups (high vigor and low vigor). SRM was evaluated based on seed and seedling dry weights, use of seed reserves, use rate of seed reserves, SRM rate to the seedling, and use efficiency of seed reserves. The high-vigor cultivars presented higher use rates of seed reserves, SRM rate to the seedling, and use efficiency of seed reserves, favoring the development of vigorous seedlings. The evaluation of SRM is an alternative to improve control of internal seed quality and selection of high-vigor common bean cultivars.

Keywords:
Phaseolus vulgaris L; Seedling growth; Germination

	SL	AA	1000SW	SLDW	SDW	RDWC	USR	UESR	URSR	SRMR	VI
G	0.40	0.38	-0.13	0.29	-0.17	-0.29	0.15	0.28	0.47^* * significant at 5% probability by the t test;	0.54^* * significant at 5% probability by the t test;	0.66^* * significant at 5% probability by the t test;
SL	-	0.56^* * significant at 5% probability by the t test;	-0.10	0.48^* * significant at 5% probability by the t test;	-0.15	-0.39^ significant at 1% probability by the t test. G = germination; SL = seedling length; AA = accelerated aging; 1000SW = 1.000-seed weight; SLDW = seedling dry weight; SDW = seed dry weight; RDWC = remaining dry weight in the cotyledons; USR - use of seed reserves; UESR = use efficiency of seed reserves; URSR = use rate of seed reserves; SRMR = seed reserve mobilization rate; VI = vigor index; number of observations = 48 (2017-2018 and 2018-2019 crop seasons).	0.42^ significant at 1% probability by the t test. G = germination; SL = seedling length; AA = accelerated aging; 1000SW = 1.000-seed weight; SLDW = seedling dry weight; SDW = seed dry weight; RDWC = remaining dry weight in the cotyledons; USR - use of seed reserves; UESR = use efficiency of seed reserves; URSR = use rate of seed reserves; SRMR = seed reserve mobilization rate; VI = vigor index; number of observations = 48 (2017-2018 and 2018-2019 crop seasons).	0.24	0.81^* * significant at 5% probability by the t test;	0.75^* * significant at 5% probability by the t test;	0.95^* * significant at 5% probability by the t test;
AA	-	-	-0.51^* * significant at 5% probability by the t test;	0.03	-0.55^* * significant at 5% probability by the t test;	-0.66^* * significant at 5% probability by the t test;	-0.11	0.21	0.64^* * significant at 5% probability by the t test;	0.61^* * significant at 5% probability by the t test;	0.59^* * significant at 5% probability by the t test;
1000SW	-	-	-	0.67^* * significant at 5% probability by the t test;	0.98^* * significant at 5% probability by the t test;	0.93^* * significant at 5% probability by the t test;	0.77^* * significant at 5% probability by the t test;	0.03	-0.38	-0.30	-0.13
SLDW	-	-	-	-	0.62^* * significant at 5% probability by the t test;	0.43^ significant at 1% probability by the t test. G = germination; SL = seedling length; AA = accelerated aging; 1000SW = 1.000-seed weight; SLDW = seedling dry weight; SDW = seed dry weight; RDWC = remaining dry weight in the cotyledons; USR - use of seed reserves; UESR = use efficiency of seed reserves; URSR = use rate of seed reserves; SRMR = seed reserve mobilization rate; VI = vigor index; number of observations = 48 (2017-2018 and 2018-2019 crop seasons).	0.80^* * significant at 5% probability by the t test;	0.52^* * significant at 5% probability by the t test;	0.21	0.47^* * significant at 5% probability by the t test;	0.48^* * significant at 5% probability by the t test;
SDW	-	-	-	-	-	0.95^* * significant at 5% probability by the t test;	0.76^* * significant at 5% probability by the t test;	-0.05	-0.42^ significant at 1% probability by the t test. G = germination; SL = seedling length; AA = accelerated aging; 1000SW = 1.000-seed weight; SLDW = seedling dry weight; SDW = seed dry weight; RDWC = remaining dry weight in the cotyledons; USR - use of seed reserves; UESR = use efficiency of seed reserves; URSR = use rate of seed reserves; SRMR = seed reserve mobilization rate; VI = vigor index; number of observations = 48 (2017-2018 and 2018-2019 crop seasons).	-0.39^ significant at 1% probability by the t test. G = germination; SL = seedling length; AA = accelerated aging; 1000SW = 1.000-seed weight; SLDW = seedling dry weight; SDW = seed dry weight; RDWC = remaining dry weight in the cotyledons; USR - use of seed reserves; UESR = use efficiency of seed reserves; URSR = use rate of seed reserves; SRMR = seed reserve mobilization rate; VI = vigor index; number of observations = 48 (2017-2018 and 2018-2019 crop seasons).	-0.19
RDWC	-	-	-	-	-	-	0.53^* * significant at 5% probability by the t test;	-0.03	-0.67^* * significant at 5% probability by the t test;	-0.55^* * significant at 5% probability by the t test;	-0.42^ significant at 1% probability by the t test. G = germination; SL = seedling length; AA = accelerated aging; 1000SW = 1.000-seed weight; SLDW = seedling dry weight; SDW = seed dry weight; RDWC = remaining dry weight in the cotyledons; USR - use of seed reserves; UESR = use efficiency of seed reserves; URSR = use rate of seed reserves; SRMR = seed reserve mobilization rate; VI = vigor index; number of observations = 48 (2017-2018 and 2018-2019 crop seasons).
USR	-	-	-	-	-	-	-	-0.09	0.27	0.10	0.39^ significant at 1% probability by the t test. G = germination; SL = seedling length; AA = accelerated aging; 1000SW = 1.000-seed weight; SLDW = seedling dry weight; SDW = seed dry weight; RDWC = remaining dry weight in the cotyledons; USR - use of seed reserves; UESR = use efficiency of seed reserves; URSR = use rate of seed reserves; SRMR = seed reserve mobilization rate; VI = vigor index; number of observations = 48 (2017-2018 and 2018-2019 crop seasons).
UESR	-	-	-	-	-	-	-	-	-0.02	0.65^* * significant at 5% probability by the t test;	0.29
URSR	-	-	-	-	-	-	-	-	-	0.73^* * significant at 5% probability by the t test;	0.82^* * significant at 5% probability by the t test;
SRMR	-	-	-	-	-	-	-	-	-	-	0.79^* * significant at 5% probability by the t test;
VI	-	-	-	-	-	-	-	-	-	-	-

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[1] *Corresponding author

2017/2018
Cultivar	MD (%)	1000SW (g)	G (%)	AA (%)	SL (cm)	VI
BAF07	13.3	206.62 e	84 b	74 b	20.39 d	1718 c
BAF13	13.6	248.06 c	85 b	79 a	26.11 b	2207 b
BAF23	13.7	379.98 a	84 b	67 b	22.33 c	1874 c
BAF42	13.4	203.66 e	86 b	84 a	25.95 b	2216 b
BAF55	13.5	223.80 d	91 a	86 a	29.11 a	2635 a
BAF112	13.1	266.32 b	87 b	84 a	26.05 b	2253 b
Mean	13.4	254.74	86	79	24.99	2.150
CV	-	2.88	3.39	6.34	4.32	5.21
2018/2019
Cultivar	MD (%)	1000SW (g)	G (%)	AA (%)	SL (cm)	VI
BAF07	12.1	203.47 e	85 c	78 c	18.63 e	1573 d
BAF13	13.4	233.28 c	93 a	85 b	25.09 c	2321 b
BAF23	13.2	332.06 a	90 b	73 c	23.46 d	2101 c
BAF42	12.3	205.73 e	89 b	79 c	25.49 c	2267 b
BAF55	12.7	224.46 d	94 a	91 a	28.28 a	2644 a
BAF112	12.4	261.57 b	85 c	83 b	26.38 b	2229 b
Mean	12.7	243.43	89	81	26.20	2.189
CV	-	1.48	3.03	5.74	2.62	3.76

2017/2018
Cultivar	SLDW	SDW	RDWC	USR	URSR	SRMR	UESR -1 mg mg
Cultivar		--------------------- mg --------------------			------- % -------		UESR -1 mg mg
BAF07	38,06 c	176.93 e	112.50 c	64.43 d	36.39 b	21.47 b	0.59 a
BAF13	49.55 b	202.91 c	110.00 c	92.91 b	45.82 a	24.55 b	0.54 a
BAF23	68.86 a	308.82 a	198.00 a	110.82 a	35.89 b	20.97 b	0.62 a
BAF42	49.84 b	163.67 f	88.50 d	75.17 c	45.89 a	30.27 a	0.66 a
BAF55	57.84 a	187.16 d	93.25 d	93.91 b	50.17 a	30.83 a	0.61 a
BAF112	62.78 a	219.78 b	123.25 b	96.53 b	43.89 a	27.02 a	0.65 a
Mean	54.49	209.87	120.91	88.96	43.01	25.98	0.61
CV	11.29	1.99	5.01	6.83	6.87	10.36	11.39
2018/2019
Cultivar	SLDW	SDW	RDWC	USR	URSR	SRMR	UESR -1 mg mg
Cultivar		--------------------- mg --------------------			------- % -------		UESR -1 mg mg
BAF07	37.46 d	171.96 c	113.50 b	58.45 e	34.09 c	21.79 e	0.64 b
BAF13	56.02 c	179.65 c	103.62 c	76.02 d	42.31 b	31.18 c	0.74 a
BAF23	73.14 a	271.77 a	170.42 a	101.34 a	37.30 c	26.91 d	0.72 a
BAF42	55.67 c	165.46 c	85.78 d	79.68 d	48.16 a	33.64 b	0.69 a
BAF55	66.98 b	178.83 c	88.79 d	90.04 b	50.38 a	37.50 a	0.74 a
BAF112	64.26 b	206.18 b	121.17 b	85.01 c	41.22 b	31.16 c	0.75 a
Mean	58.92	195.64	113.88	81.75	42.24	30.36	0.72
CV	4.07	4.08	6.67	5.11	5.46	3.38	5.37