VARIABILITY OF F<sub>2</sub> PROGENIES OF CASTOR BEAN BY MEANS OF MORPHOAGRONOMIC DESCRIPTORS<sup/>

CAPINAN, GEAN CARLO SOARES; SILVA, SIMONE ALVES; SOUZA, DEOCLIDES RICARDO DE; SANTOS, LAURENICE ARAUJO DOS; JESUS, ILNEIDE BRAZ SANTOS DE

doi:10.1590/1983-21252022v35n106rc

Brasil

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Agronomy • Rev. Caatinga 35 (01) • Jan-Mar 2022 • https://doi.org/10.1590/1983-21252022v35n106rc linkcopy

VARIABILITY OF F₂ PROGENIES OF CASTOR BEAN BY MEANS OF MORPHOAGRONOMIC DESCRIPTORS¹

VARIABILIDADE DE PROGÊNIES F₂ DE MAMONEIRA POR MEIO DE DESCRITORES MORFOAGRONÔMICOS

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Morphoagronomic characterization is a basic requirement to identify a phenotypic profile of a population. The quantification of variability allows efficient selection of superior and divergent genotypes. Thus, this study aimed to estimate the variability among 490 genotypes and seven strains, from an F₂ population of Ricinus communis L., in 35 morphoagronomic traits and 12 agronomic traits. For qualitative descriptors, the entropy technique was used in the percentage frequencies of each category, computing its level using the coefficient of Rényi (1961). Quantitative descriptors were subjected to analysis of variance by the F test, and Tukey test was performed at 1% probability level. Of the morphoagronomic traits used, 13 were related to plants, nine were related to inflorescence, six were related to fruits and seven were linked to seeds, in addition to 12 agronomic traits. The material was arranged in the field with families (strains of five families) interspersed with their respective parents (controls). Stem color, shape and number of racemes collected, main color, type of secondary color and hundred-seed weight have high variability in the population, with formation of 68 groups as a function of genetic similarity. The possibility of selection as to the number of racemes harvested is clear, so it is possible to identify genotypes with higher number, aiming to enhance crop yield.

Keywords: Ricinus communis L; Genetic improvement; Entropy

Until 10 days after emergence
Descriptors	Evaluation	Phenotypic class
1. Anthocyanin Pigmentation of the Hypocotyl (APH)	Observe visually if there is presence or absence.	1. Absent or 2. Present
Full flowering of primary raceme.
2. Insertion of the Primary Raceme (IPR).	Measure with a tape measure from the soil to the point of insertion of the primary raceme.	1. Low (< 50cm); 2. Medium (51 to 100cm); 3. High (> 100cm).
3. Stem Diameter (STD).	Measure in the middle third of the stem, with digital caliper.	1. Thin (< 3cm); 2. Medium (3 to 6cm); 3. Thick (> 5cm).
4. Average Length of Stem Internode (ALSI).	Obtained by the NSI/IPR ratio.	1. Short (< 2cm); 2. Medium (3 to 5cm) or 3. Long (>5 cm).
5. Number of Stem Internodes (NSI).	Quantity of scars present on the stem.	1. Low (up to 15); 2. Medium (16 to 18) or 3. High (> 19).
6. Stem Waxiness (STWX).	Record if there is presence or absence of wax on the stem.	1. Absent or 2. Present.
7. Stem Color (STC).	Phenotypic classes of MAPA (BRASIL, 2008).	1. Light green; 2. Medium green; 3. Dark green; 4. Pinkish green; 5. Pinkish; 6. Red; 7. Reddish brown or 8. Purple.
8. Upper Side of the lamina (USL).	According to the angle formed by the lamina.	1.Flat. 2. Slightly tapered. 3. Tapered.
9. Pigmentation of the Midrib (PMR).	Color of veins on the lower side of mature leaves.	1. Greenish and 2. Reddish.
10. Waxiness on the Upper Side of the Lamina (WXUSL).	Observe on the upper lamina of mature leaves.	1. Absent and 2. Present.
11. Color of the Upper Side of the Lamina (CUSL).	Color observed on the side.	1. Light green; 2. Medium green; 3. Dark green; 4. Pink; 5. Reddish green. 6. Red
12. Male Flowers in Racemes (MFR).	Check for the presence of male flowers.	1. Absent and 2. Present.
13. Location of Male Flowers in Racemes (LMFR).	Observe whether the male flowers are mostly at the bottom of the primary raceme.	1. Predominant at the bottom of the raceme and 2. Interspersed with female flowers.
14. Stigma Color (STGC).	Observe in the first raceme the color of the stigma before pollination.	1. Yellowish; 2. Greenish; 3. Orangish; 4. Reddish and 5. Pinkish. From emergence to the beginning of female flowering of the first raceme.
15. Flowering (FLO).	Subtraction of germination data from flowering date.	1. Early (up to 30 days); 2. Medium (31 to 60 days) and 3. Late (above 60 days).
16. Plant Stature (PST).	Measure with a tape measure from the soil to the apex of the highest branch.	1. Very short (< 100 cm); 2. Short (101 to 150 cm); 3. Medium (151 to 200 cm); 4. Tall (201 to 250 cm) and 5. Very tall (> 250 cm)
17. Plant Architecture (PARC).	Photograph plants for analysis.	1. Erect; 2. Semi-erect and 3. Open.
18. Number of Racemes Harvested (NRH).	Count how many racemes were produced.	1. Low (up to 3); 2. Medium (4 to 7) or 3. High (> 7).
19. Length of Primary Raceme (LPR).	Measure with a ruler from the apex of the first raceme to the scar of the first node.	1. Short (< 31 cm); 2. Medium (31 to 50 cm) or 3. Long (> 51 cm). Immature fruits of the first raceme
20. Raceme Density (RD).	Phenotypic classes of MAPA (BRASIL, 2008).	1. Sparse; 2. Intermediate and 3. Compact.
21. Raceme Shape (RSH).	Phenotypic classes of MAPA (BRASIL, 2008).	1. Globose; 2. Cylindrical and 3. Conical.
22. Fruit Waxiness (FWX).	Evaluations performed visually.	1. Absent. 2. Present.
23. Fruit Color (FC).	Phenotypic classes of MAPA (BRASIL, 2008).	1. Yellowish; 2. Light green; 3. Medium green; 4. Dark green; 5. Pinkish green. 6. Pink; 7. Red or 8. Purple.
24. Presence of Spines on the Fruits (PSF).	Evaluations performed visually	1. Absent or 2. Present.
25. Density of Fruit Spines (DFS).		1. Low; 2. Medium or 3. High;
26. Color of Fruit Spines (CFS).	Phenotypic classes of MAPA (BRASIL, 2008).	1. Yellowish; 2. Light green; 3. Medium green; 4. Dark green; 5. Pinkish green. 6. Pink; 7. Red or 8. Purple. Mature fruits or racemes
27. Dehiscence of Fruits (DEF).	According to the quantity of open fruits.	1. Dehiscent; 2. Semi-dehiscent or 3. Indehiscent. Seeds harvested from mature fruits.
28. Presence of Secondary Color (PSC).	Evaluations performed visually	1. Absent. 2. Present.
29. Main Color of the Seed (MCS).	Corresponding to the predominant color.	1. White; 2. Yellowish; 3. Reddish; 4. Light brown; 5. Medium brown; 6. Dark brown; 7. M-Reddish brown. 8. Grayish or 9. Black.
30. Secondary Color of the Seed (SCS).	Phenotypic classes of MAPA (BRASIL, 2008).	1. White; 2. Yellowish; 3. Reddish; 4. Light brown; 5. Medium brown; 6. Dark brown; 7. M-Reddish brown. 8. Grayish or 9. Black.
31. Type of Secondary Color (TSC).	Phenotypic classes of MAPA (BRASIL, 2008).	1. Mottled; 2. Streaked or 3. Spotted.
32. Seed Shape (SSH).	According to its shape.	1. Round or 2. Ellipsoid.
33. Caruncle Protuberance (CARP).	Evaluated visually.	1. Light or 2. Accentuated.
34. 100-seed weight at 9% moisture (100SW).	Phenotypic classes of MAPA (BRASIL, 2008).	1. Low (< 40 g); 2. Medium (41 to 55 g) or 3. High (> 55 g).
35. Yield of Seeds per Fruit (YSF).	Percentage of seed weight by fruit weight.	1. Low (< 60%); 2. Medium (61 a 80%) or 3. High (> 80%).
36. Number of fruits per raceme (NFR).	Average count of the number of fruits from the first four racemes.	Descriptors suggested by NBIO (2014).
37. Number of Seeds on the Primary Raceme (NSPR).	Count of the number of seeds in the first raceme.	Descriptors suggested by NBIO (2014).
38. Number of Seeds per Raceme (NSR).	Average count of the number of seeds in the first four racemes.	Descriptors suggested by NBIO (2014).
39. Weight of Seeds per Raceme (WSR).	Average weight of seeds in the first four racemes.	Descriptors suggested by NBIO (2014).
40. Weight of Seeds per Plant (WSP).	Sum of the weight of seeds from the first four racemes.	Descriptors suggested by NBIO (2014).
41. Number of Fruits per Plant (NFP).	Count of the number of fruits from the first four racemes.	Descriptors suggested by NBIO (2014).
42. Number of Seeds per Plant (NSP).	Count of the number of seeds from the first four racemes.	Descriptors suggested by NBIO (2014).
43. Weight of Racemes per Plant (WRP).	Weight of the first four racemes, using an analytical balance.	Descriptors suggested by NBIO (2014).
44. Weight of Fruits per Raceme (WFR).	Average weight of fruits from the first four racemes, using an analytical balance.	Descriptors suggested by NBIO (2014).
45. Yield (YLD).	Estimated for each plant in kg ha^-1.	Descriptors suggested by NBIO (2014).
46. Raceme Length (RL).	Average length of the first four racemes.	Descriptors suggested by NBIO (2014).
47. Effective Raceme Length (ERL).	Measurement from the apex of the raceme to the last peduncle.	Descriptors suggested by NBIO (2014).
48. Weight of Fruits per Plant (WFP)	Sum of the weight of fruits from the first four racemes.	Descriptors suggested by NBIO (2014).

Descriptor	Classes	Frequency (%)	Entropy (H)
APH - Anthocyanin Pigmentation of the Hypocotyl	1. Absent 2. Present	100.0 0.0	0.00
FLO - Flowering	1. Early 2. Medium 3. Late	97.8 0.2 2.0	0.11
IPR - Insertion of the Primary Raceme	1. Low 2. Medium 3. High	87.7 6.2 6.0	0.46
STD - Stem Diameter	1. Thin 2. Medium 3. Thick	96.4 3.6 0.0	0.14
ALSI - Average Length of Stem Internode	1. Short 2. Medium 3. Long	0.4 49.9 49.7	0.72
NSI - Number of Stem Internodes	1. Low 2. Medium 3. High	57.1 42.3 0.6	0.72
STWX - Stem Waxiness	1. Absent 2. Present	80.3 19.7	0.49
STC - Stem Color	1. Light green 2. Medium green 3. Dark green 4. Pinkish green 5. Pinkish 6. Red 7. Reddish brown 8. Purple	0.2 5.2 0.0 6.8 0.8 10.7 76.3 0.0	0.86
USL - Upper Side of the Lamina	1. Flat 2. Slightly tapered 3. Tapered	71.6 28.4 0.0	0.62
PMR - Pigmentation of the Midrib	1. Greenish 2. Reddish	13.1 86.9	0.39
WXUSL - Waxiness on the Upper Side of the Lamina	1. Absent 2. Present	100.0 0.0	0.00
CUSL - Color of the Upper Side of the Lamina	1. Light green 2. Medium green 3. Dark green 4. Pinkish 5. Reddish green 6. Red 7. Purple	78.9 0.0 20.3 0.0 0.2 0.6 0.0	0.61
MFR - Male Flowers in Racemes	1. Absent 2. Present	100.0 0.0	0.00
LMFR - Location of Male Flowers in Racemes	1. Predominant at the bottom of the raceme 2. Interspersed with female flowers	100.0 0.0	0.00
STGC - Stigma Color	1. Yellowish 2. Greenish 3. Orangish 4. Reddish 5. Pinkish	0.0 26.4 0.0 73.6 0.0	0.62
RD - Raceme Density	1. Sparse 2. Intermediate 3. Compact	17.9 77.1 5.0	0.66
RSH - Raceme Shape	1. Globose 2. Cylindrical 3. Conical	30.6 50.9 18.5	1.02
FWX - Fruit Waxiness	1. Absent 2. Present	22.5 77.5	0.63
FC - Fruit Color	1. Yellowish 2. Light green 3. Medium green 4. Dark green 5. Pinkish green 6. Pink 7. Red 8. Purple	0.4 4.6 86.5 8.0 0.2 0.0 0.2	0.62
PSF - Presence of Spines on the Fruits	1. Absent 2. Present	100.0 0.0	0.00
DFS - Density of Fruit Spines	1. Low 2. Medium 3. High	2.8 70.4 26.8	0.70
CFS - Color of Fruit Spines	1. Yellowish 2. Light green 3. Medium green 4. Dark green 5. Pinkish green 6. Pink 7. Red 8. Purple	0.2 3.0 1.8 0.0 23.3 1.4 9.9 60.4	0.82
PST - Plant Stature	1. Very short 2. Short 3. Medium 4. Tall 5. Very tall	32.6 58.4 8.7 0.4 0.0	0.92
PARC - Plant Architecture	1. Erect 2. Semi-erect 3. Open	35.0 38.2 26.8	1.09
NRH- Number of Racemes Harvested	1. Low 2. Medium 3. High	59.0 37.2 3.8	0.80
LPR - Length of Primary Raceme	1. Short 2. Medium 3. Long	86.1 13.5 0.4	0.43
DEF - Dehiscence of Fruits	1. Dehiscent 2. Semi-dehiscent 3. Indehiscent	67.0 32.0 1.0	0.69
PSC - Presence of Secondary Color	1. Absent 2. Present	98.4 1.6	0.09
MCS - Main Color of the Seed	1. White 2. Yellowish 3. Reddish 4. Light brown 5. Medium brown 6. Dark brown 7. Reddish brown 8. Grayish 9. Black	0.2 0.0 0.0 0.2 4.2 28.0 23.3 44.1 0.0	1.22
SCS - Secondary Color of the Seed	1. White 2. Yellowish 3. Reddish 4. Light brown 5. Medium brown 6. Dark brown 7. Reddish brown 8. Grayish 9. Black	1.8 0.0 0.0 97.8 0.0 0.4 0.0 0.0	0.15
TSC - Type of Secondary Color	1. Mottled 2. Streaked 3. Spotted	17.7 20.7 61.6	0.93
SSH- Seed Shape	1. Round 2. Ellipsoid	0.0 100.0	0.00
CARP - Caruncle Protuberance	1. Light 2. Accentuated	40.2 59.8	0.68
YSF - Yield of Seeds per Fruit	1. Low 2. Medium 3. High	64.4 34.2 1.4	0.71
100SW - 100-seed weight at 9% moisture	1. Low 2. Medium 3. High	51.5 27.2 21.3	1.06

Descriptors	Mean Square	F	Mean	Minimum	Maximum	CV (%)
RL (cm)	94.93	19.26^ ,* Significant at 1% and 5% probability levels by F-test.	23.88	7.00	56.00	30.48
ERL (cm)	27.82	28.13^ ,* Significant at 1% and 5% probability levels by F-test.	17.51	4.00	46.00	37.93
WRP (g)	8.000	7.27^ ,* Significant at 1% and 5% probability levels by F-test.	185.60	18.00	578.00	51.28
NFR (unt)	81.83	3.78^ ,* Significant at 1% and 5% probability levels by F-test.	16.95	1.00	65.00	54.01
NFP (unt)	1,309.00	3.83^ ,* Significant at 1% and 5% probability levels by F-test.	67.99	4.00	258.00	54.21
WFR (g)	449.34	7.36^ ,* Significant at 1% and 5% probability levels by F-test.	43.90	4.00	137.00	51.28
WSR (g)	180.38	6.41^ ,* Significant at 1% and 5% probability levels by F-test.	26.13	1.66	116.36	56.68
WSP (g)	2,630.00	3.24^ ,* Significant at 1% and 5% probability levels by F-test.	97.12	6.63	465.43	59.23
NSPR (unt)	2,209.00	6.54^ ,* Significant at 1% and 5% probability levels by F-test.	130.65	15.00	354.00	40.85
NSR (unt)	485.33	3.31^ ,* Significant at 1% and 5% probability levels by F-test.	44.06	2.99	196.93	55.84
NSP (unt)	7,689.00	3.35^ ,* Significant at 1% and 5% probability levels by F-test.	169.59	11.95	787.73	57.54
YLD (kg.ha^-1)	23,819.00	6.99^ ,* Significant at 1% and 5% probability levels by F-test.	1008.41	91.89	4,098.77	53.85
WFP (g)	7,116.45	7.47^ ,* Significant at 1% and 5% probability levels by F-test.	176.98	15.98	712.83	52.29
OCS (%)	143.74	14.5^ ,* Significant at 1% and 5% probability levels by F-test.	44.19	23.4	51.83	6.27

TRAITS
GEN	RL	ERL	NSP	NSR	WFR	NFR	WRP
UFRB₃₁₇	29.36b	22.29bc	191.65ab	50.41 a	54.22ab	19.79ab	227.51ab
UFRB₃₁₈	18.55e	13.05g	140.13ab	37.62 a	43.35abc	14.22ab	184.35abc
F04	25.82c	19.79cd	154.31ab	39.53 a	33.25c	14.58ab	141.95c
F02	19.94e	14.45fg	182.63ab	46.95 a	54.72ab	17.33ab	229.92ab
UFRB₃₂₁	23.47d	17.84e	204.22ab	52.50 a	36.78bc	20.92 a	154.41bc
UFRB₃₂₃	31.54a	24.70a	177.68ab	46.28 a	35.18c	17.00ab	146.34c
F05	29.53b	23.34b	171.88ab	46.64 a	51.03abc	16.79ab	219.00abc
UFRB₃₁₉	22.17de	18.81d	203.00ab	50.75 a	58.97 a	19.74ab	249.24 a
UFRB₃₂₀	21.16de	15.75ef	133.36ab	33.34 a	35.31c	15.73ab	146.15c
F01	23.86d	17.68e	212.74a	53.19 a	34.04c	21.04 a	143.96c
F03	16.92d	11.12g	134.50ab	35.99 a	46.25abc	14.24ab	198.40abc
UFRB₃₂₂	23.72d	13.04g	113.04b	31.87 a	38.06bc	11.52b	164.33bc
GEN	NSPR	WSR	WSP	NFP	WFP	YLD	OCS
UFRB₃₁₇	160.07 a	30.80abc	117.88 a	79.99ab	218.52ab	1246.63ab	45.60abc
UFRB₃₁₈	95.13cd	26.78abc	94.97 a	56.86ab	175.93abc	989.75abc	44.80cd
F04	132.45abcd	19.70c	75.93 a	58.31ab	134.08c	763.21c	44.96cd
F02	123.95abcd	33.09ab	114.72 a	69.70ab	219.44ab	1257.09ab	43.50e
UFRB₃₂₁	153.77ab	22.47bc	88.66 a	83.69 a	147.13bc	846.00bc	46.48a
UFRB₃₂₃	161.48 a	20.25c	77.35 a	67.99ab	141.94c	809.00c	47.40a
F05	143.29abc	29.33abc	111.31 a	67.16ab	204.13abc	1173.74abc	46.06ab
UFRB₃₁₉	128.59abcd	33.97 a	120.71 a	78.97ab	236.49 a	1356.37a	44.52d
UFRB₃₂₀	124.98abcd	20.61c	75.20 a	62.94ab	141.25c	812.20c	43.43e
F01	162.54 a	21.25c	85.14 a	84.15 a	136.17c	782.98c	45.31bcd
F03	96.47bcd	27.94abc	106.62 a	56.95ab	184.98abc	1063.65abc	43.17e
UFRB₃₂₂	82.29d	23.53abc	87.59 a	46.09b	152.25bc	875.41bc	41.05f

Clusters	Genotypes	N° of genotypes	Dissimilarity
01	UFRB_{368; 369; 356; 357; 371; 625; 622; 623; 337; 531; 519; 330; 650; 332; 586; 544; 521; 535; 526; 525; 520; 649; 431; 523; 529; 433 424; 434; 739; 653; 528 533; 658; 327; 641; 448; 449; 635; 636; 432; 648; 632; 427; 450; 484; 383; 382; 642; 654; 446; 429; 425; 483; 480; 633; 643; 634; 656; 444; 749; 437; 447; 638; 482; 322; 481; 426; 665; 436; 441; 631; 487; 485; 416; 721; 660; 661; 443; 663; 637; 667; 442; 748; 445; 318; 326; 336; 730; 640; 479; 724; 719; 706; 486; 718; 720; 715; 716; 727; 713; 731; 723; 677; 683; 712; 389; 722; 711; 323; 670; 495; 732 681; 682; 674; 686; 675; 676; 717; 490; 672; 678; 728; 668; 452; 462; 465; 466; 467; 469; 729; 376; 662; 664; 725; 726; 478; 679; 669; 494; 685; 644; 474; 645; 688; 707; 703; 477; 708; 705; 464; 489; 709; 471; 461 and 468}.	155	0.21
02	UFRB_{439; 440; 438; 639; 451; 800; 390; 496; 700; 704; 502; 492; 505; 497; 499; 498; 510; 501; 508; 500; 503; 493; 509; 504; 507; 696; 470; 454; 459; 473; 476; 460; 456; 673; 512; 453; 455; 680; 684; 463; 472; 475; 458; 457; 516; 514; 517; 515 and 699}.	54	0.19
03	UFRB_{805; 806; 810; 812; 807; 808; 813; 809; 782; 793; 792; 803; 811; 747; 783; 796; 786; 784; 797; 321; 745; 794; 760; 761; 742; 755; 744; 756; 757; 754; 746; 758 and 759}.	33	0.20
04	UFRB_{580; 596; 599; 600; 577; 576; 543; 579; 578; 581; 588; 590; 584; 592; 587; 589; 595; 802; 352; 591; 691; 409; 666; 403; 695; 693 and 701}.	26	0.19
05	UFRB_{624; 629; 628; 627; 617; 388; 618 and 626}.	8	0.19
06	UFRB_{687; 692;694; 690; 689;781;659; 394; 406; 398; 395; 401; 400 and 714}.	14	0.13
07	UFRB_{768; 769; 770; 772; 778; 766; 776; 777; 763; 762; 767; 775; 764; 765; 771 and 773}.	16	0.18
08	UFRB_{787; 788; 518; 790; 789; 791; 608 and 795}.	8	0.17
09	UFRB_{358; 362; 359; 372; 366; 363; 365; 593; 361; 354; 370; 355; 360 and 328}.	14	0.19
10	UFRB_{380; 671;375; 374; 397; 381; 391; 411; 399; 373; 402; 422 and 419}.	13	0.18
11	UFRB_{537; 547; 324; 541; 737; 655; 329; 345; 545; 342 and 339}.	11	0.16
12	UFRB_{554; 555; 556; 552; 553; 56 and 551}.	7	0.18
13	UFRB_{377; 378; 619; 412; 414 and 404}.	6	0.15
14	UFRB_{549; 550 and 548}.	3	0.16
15	UFRB_{558; 561; 565; 560; 571 and 564}.	6	0.16
16	UFRB_{559; 562; 569; 570 and 568}.	5	0.19
17	UFRB_{613; 620; 605; 607; 610; 698; 702 and 621}.	8	0.19
18	UFRB_{734; 736; 527; 750; 522; 524 and 540}	7	0.20
19	UFRB_{325; 335; 331; 334; 343 and 344}.	6	0.17
20	UFRB_{353; 367; 542 and 386}.	4	0.18
21	UFRB_{384; 387; 413 and 410}.	4	0.11
22	UFRB_{606; 611; 604 and 710}.	4	0.19
23	UFRB_{743; 753; 735; 733 and 738}	5	0.18
24	UFRB_{779; 780 and 614}.	3	0.19
25	UFRB_{320; 539; 601; 630 and 597}.	5	0.19
26	UFRB_{379; 612; 774 and 697}.	4	0.15
27	UFRB_{651; 751 and 557}.	3	0.14
28 and 29^* * Within parentheses, genotypes belonging to the same group, with equivalent number and dissimilarity. Note. Hybrid family F01: UFRB630 to UFRB732; F06: UFRB519 to UFRB629; F12:UFRB424 to UFRB518; F16: UFRB324 to UFRB423; and F17:UFRB733 to UFRB813. Parent: UFRB318; UFRB317; UFRB321; UFRB322; UFRB323; UFRB319 and UFRB320.	(UFRB_{647; 652 and 657}) and (UFRB_{418, 615 and 546})	3	0.17
30 and 31^* * Within parentheses, genotypes belonging to the same group, with equivalent number and dissimilarity. Note. Hybrid family F01: UFRB630 to UFRB732; F06: UFRB519 to UFRB629; F12:UFRB424 to UFRB518; F16: UFRB324 to UFRB423; and F17:UFRB733 to UFRB813. Parent: UFRB318; UFRB317; UFRB321; UFRB322; UFRB323; UFRB319 and UFRB320.	(UFRB_{319; 348 and 349}) and (UFRB_{428; 430 and 646}).	3	0.20
32	(UFRB_{435 and U741}).	2	0.11
33	(UFRB_{573 and 574}).	2	0.19
34 to 36^* * Within parentheses, genotypes belonging to the same group, with equivalent number and dissimilarity. Note. Hybrid family F01: UFRB630 to UFRB732; F06: UFRB519 to UFRB629; F12:UFRB424 to UFRB518; F16: UFRB324 to UFRB423; and F17:UFRB733 to UFRB813. Parent: UFRB318; UFRB317; UFRB321; UFRB322; UFRB323; UFRB319 and UFRB320.	(UFRB_{393 and 396}); (UFRB_{491 and 511}) and (UFRB₅₆₇ and UFRB₅₇₂).	2	0.17
37 to 41^* * Within parentheses, genotypes belonging to the same group, with equivalent number and dissimilarity. Note. Hybrid family F01: UFRB630 to UFRB732; F06: UFRB519 to UFRB629; F12:UFRB424 to UFRB518; F16: UFRB324 to UFRB423; and F17:UFRB733 to UFRB813. Parent: UFRB318; UFRB317; UFRB321; UFRB322; UFRB323; UFRB319 and UFRB320.	(UFRB_{364 and 575}); (UFRB_{385 and 392}); (UFRB_{566 and 582}); (UFRB_{333 and 602}) and (UFRB_{423 and 603}).	2	0.20
42 to 48^* * Within parentheses, genotypes belonging to the same group, with equivalent number and dissimilarity. Note. Hybrid family F01: UFRB630 to UFRB732; F06: UFRB519 to UFRB629; F12:UFRB424 to UFRB518; F16: UFRB324 to UFRB423; and F17:UFRB733 to UFRB813. Parent: UFRB318; UFRB317; UFRB321; UFRB322; UFRB323; UFRB319 and UFRB320.	(UFRB_{408 and 417}); (UFRB_{415 and 740}); (UFRB_{420 and 421}); (UFRB_{506 and 804}); (UFRB_{532 and 534}); (UFRB_{583 and 801}); and (UFRB_{338 and 341}).	2	0.22
49 to 68^* * Within parentheses, genotypes belonging to the same group, with equivalent number and dissimilarity. Note. Hybrid family F01: UFRB630 to UFRB732; F06: UFRB519 to UFRB629; F12:UFRB424 to UFRB518; F16: UFRB324 to UFRB423; and F17:UFRB733 to UFRB813. Parent: UFRB318; UFRB317; UFRB321; UFRB322; UFRB323; UFRB319 and UFRB320.	UFRB_{585; 798; 538; 350; 799; 317; 405; 488; 598; 752; 351; 513; 530; 346; 594; 785; 407; 616; 536 and 609}.	1

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Universidade Federal Rural do Semi-Árido Avenida Francisco Mota, número 572, Bairro Presidente Costa e Silva, Cep: 5962-5900, Telefone: 55 (84) 3317-8297 - Mossoró - RN - Brazil
E-mail: caatinga@ufersa.edu.br

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Significant at 1% and 5% probability levels by F-test.

VARIABILITY OF F2 PROGENIES OF CASTOR BEAN BY MEANS OF MORPHOAGRONOMIC DESCRIPTORS1

VARIABILIDADE DE PROGÊNIES F2 DE MAMONEIRA POR MEIO DE DESCRITORES MORFOAGRONÔMICOS

ABSTRACT

VARIABILITY OF F₂ PROGENIES OF CASTOR BEAN BY MEANS OF MORPHOAGRONOMIC DESCRIPTORS¹

VARIABILIDADE DE PROGÊNIES F₂ DE MAMONEIRA POR MEIO DE DESCRITORES MORFOAGRONÔMICOS