Technologies for Jatoba Seedling Formation

Costa, Edilson; Lopes, Karina Garcia; Binotti, Flávio Ferreira da Silva; Binotti, Eliana Duarte Cardoso; Dalastra, Cleiton

doi:10.1590/2179-8087.008415

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Original Article, Silviculture • Floresta Ambient. 26 (1) • 2019 • https://doi.org/10.1590/2179-8087.008415 copy

Technologies for Jatoba Seedling Formation

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

This research evaluated protected environment and substrates for jatoba seedling. Two protected environments were used: (i) black shading screen on the sides and roof; and, (ii) black shading screen on the sides and thermal-reflective aluminized screen on the roof. In each environment the following substrates formulated with cattle manure (M) and vermiculite (V) were tested: 100% M; 90% M + 10% V; 80% M + 20% V; 70% M + 30% V; 60% M +40% V; 50% M + 50% V; 40% M +60% V; 30% M + 70% V; 20% M + 80% V; 10% M + 90%V. The environment protected with black shading screen was more favorable for the formation of jatoba seedlings, resulting in seedlings with higher shoot height and root collar diameter and, therefore, higher quality. Recommendation is to use substrates containing up to 30% of cattle manure to produce high quality jatoba seedlings.

Keywords:
Hymenaea courbaril; substrates; protected environments

Substrates	Emergence percentage		Emergence rate index
Substrates	Black shading screen	Aluminized screen	Black shading screen	Aluminized screen
S1=100%M	91.7 Aa	95.0 Aa	1.41 Cb	2.24 Ca
S2=90%M + 10%V	96.7 Aa	96.7 Aa	1.53 Ca	1.18 Da
S3=80%M + 20%V	98.3 Aa	98.3 Aa	2.14 Ba	1.17 Db
S4=70%M + 30%V	96.7 Aa	98.3 Aa	2.72 Aa	1.87 Cb
S5=60%M + 40%V	96.7 Aa	96.7 Aa	2.58 Aa	2.65 Ba
S6=50%M + 50%V	95.0 Aa	96.7 Aa	1.59 Cb	2.09 Ca
S7=40%M + 60%V	96.7 Aa	100.0 Aa	1.72 Cb	3.64 Aa
S8=30%M + 70%V	98.3 Aa	96.7 Aa	1.34 Cb	2.89 Ba
S9=20%M +80%V	98.3 Aa	93.3 Aa	1.53 Ca	1.75 Ca
S10=10%M + 90%V	98.3 Aa	93.3 Aa	1.45 Cb	3.22 Aa
CV (%)	5.82		17.37
RMSr	1.12		1.97
Fc (Environments – E)	0.02^ns		44.21 ^ significant at 1% probability;
Fc (Substrates – S)	0.71^ns		15.61**
Fc (E × S interaction)	0.71^ns		21.68**

Substrates	Mean emergence time		Emergence mean rate
Substrates	Black shading screen	Aluminized screen	Black shading screen	Aluminized screen
S1=100%M	13.9 Ba	13.6 Ba	0.0721 Ba	0.0735 Ba
S2=90%M + 10%V	14.0 Ba	14.3 Aa	0.0713 Ba	0.0700 Da
S3=80%M + 20%V	13.9 Bb	14.3 Aa	0.0722 Ba	0.0698 Db
S4=70%M + 30%V	13.5 Cb	13.8 Ba	0.0739 Aa	0.0723 Cb
S5=60%M + 40%V	13.6 Ca	13.6 Bb	0.0733 Aa	0.0740 Ba
S6=50%M + 50%V	14.1 Ba	13.5 Ca	0.0704 Cb	0.0733 Ba
S7=40%M + 60%V	14.1 Ba	13.3 Cb	0.0712 Bb	0.0750 Aa
S8=30%M + 70%V	14.6 Aa	13.4 Cb	0.0688 Cb	0.0748 Aa
S9=20%M +80%V	14.4 Aa	14.1 Aa	0.0695 Ca	0.0708 Da
S10=10%M + 90%V	14.5 Aa	13.3 Cb	0.0691 Cb	0.0753 Aa
CV (%)	1.68		1.63
RMSr	1.48		2.00
Fc (Environments – E)	48.45 ^ significant at 1% probability;		52.32**
Fc (Substrates – S)	9.41**		9.65**
Fc (E × S interaction)	16.06**		16.82**

Substrates	PH	CD	RDM	TDM
S1=100%M	47.3 A	4.63 B	0.789 C	4.19 B
S2=90%M + 10%V	46.7 A	4.76 B	0.716 C	4.18 B
S3=80%M + 20%V	48.3 A	4.81 B	0.793 C	4.39 B
S4=70%M + 30%V	48.1 A	4.96 A	0.773 C	4.37 B
S5=60%M + 40%V	47.8 A	4.78 B	0.847 C	4.38 B
S6=50%M + 50%V	47.5 A	4.77 B	0.935 B	4.72 A
S7=40%M + 60%V	46.1 A	4.84 B	0.966 B	4.47 B
S8=30%M + 70%V	44.8 B	5.07 A	1.025 B	4.63 A
S9=20%M +80%V	44.4 B	4.90 A	1.058 A	4.58 A
S10=10%M + 90%V	43.9 B	4.83 B	1.141 A	4.76 A
CV (%)	4.92	4.07	14.73	9.13
RMSr	1.01	1.86	1.41	1.56
Fc (Environments – E)	5.24 ^* * significant at 5% probability;	4.32*	0.10^ns	1.96^ns
Fc (Substrates – S)	4.93 ^ significant at 1% probability;	3.64**	11.30**	2.48*
Fc (E × S interaction)	0.13^ns	0.23^ns	0.38^ns	0.59^ns
Substrates	SRR	HSR	HDR	DQI
S1=100%M	4.34 B	13.99 A	10.21 A	0.288 B
S2=90%M + 10%V	4.90 A	13.64 A	9.84 A	0.284 B
S3=80%M + 20%V	4.56 A	13.46 A	10.03 A	0.302 B
S4=70%M + 30%V	4.73 A	13.41 A	9.70 A	0.304 B
S5=60%M + 40%V	4.24 B	13.55 A	10.02 A	0.309 B
S6=50%M + 50%V	4.16 B	12.63 B	9.98 A	0.336 A
S7=40%M + 60%V	3.66 C	13.23 A	9.52 A	0.339 A
S8=30%M + 70%V	3.56 C	12.44 B	8.87 B	0.374 A
S9=20%M +80%V	3.36 C	12.67 B	9.06 B	0.370 A
S10=10%M + 90%V	3.20 C	12.16 B	9.09 B	0.388 A
CV (%)	12.56	7.35	5.71	10.85
RMSr	2.16	1.12	1.21	1.44
Fc (Environments – E)	3.21^ns	0.43^ns	0.23^ns	0.06^ns
Fc (Substrates – S)	13.49**	3.89**	7.44**	11.17**
Fc (E × S interaction)	0.35^ns	0.36^ns	1.87^ns	0.44^ns

Production environments	PH	CD
Black shading screen	47.00 A	4.88 A
Thermal-reflective aluminized screen	45.96 B	4.79 B

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[1] Edilson CostaUnidade Universitária de Cassilândia, Universidade Estadual de Mato Grosso do Sul – UEMS, Rodovia MS 306, Km 6,5, CEP 79540-000, Cassilândia, MS, Brasil e-mail: mestrine@uems.br