Pre-germination treatments of melon seeds for the production of seedlings irrigated with biosaline water

Silva, J. E. S. B.; Torres, S. B.; Leal, C. C. P.; Leite, M. S.; Guirra, K. S.; Dantas, B. F.; Morais, M. B.; Guirra, B. S.

doi:10.1590/1519-6984.257314

J. E. S. B. Silva ^**e-mail: jose.eduardo@ifbaiano.edu.br

Instituto Federal de Educação, Ciência e Tecnologia Baiano – IF Baiano, Bom Jesus da Lapa, BA, Brasil

Universidade Federal Rural do Semi-Árido – UFERSA, Programa de Pós-graduação em Fitotecnia, Mossoró, RN, Brasil

https://orcid.org/0000-0003-3838-8672

S. B. Torres

Universidade Federal Rural do Semi-Árido – UFERSA, Programa de Pós-graduação em Fitotecnia, Mossoró, RN, Brasil

https://orcid.org/0000-0003-0668-3327

C. C. P. Leal

Universidade Federal Rural do Semi-Árido – UFERSA, Programa de Pós-graduação em Fitotecnia, Mossoró, RN, Brasil

https://orcid.org/0000-0001-7745-1836

M. S. Leite

Universidade Federal Rural do Semi-Árido – UFERSA, Programa de Pós-graduação em Fitotecnia, Mossoró, RN, Brasil

https://orcid.org/0000-0003-0432-0522

K. S. Guirra

Universidade Federal Rural do Semi-Árido – UFERSA, Programa de Pós-graduação em Fitotecnia, Mossoró, RN, Brasil

https://orcid.org/0000-0002-2510-6587

B. F. Dantas

Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA, Petrolina, PE, Brasil

https://orcid.org/0000-0002-2375-9373

M. B. Morais

Universidade do Estado do Rio Grande do Norte – UERN, Programa de Pós-graduação em Ciências Naturais, Mossoró, RN, Brasil

https://orcid.org/0000-0001-5074-5244

B. S. Guirra

Universidade Federal da Paraíba – UFPB, Programa de Pós-graduação em Agronomia, Areia, PB, Brasil

https://orcid.org/0000-0001-7136-132X

*e-mail: jose.eduardo@ifbaiano.edu.br

Figures (5)
Tables (2)

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Figure 1
Emergence (A) and emergence speed index (B) of melon seedlings. Goldex hybrid. grown from seeds treated and irrigated with different dilutions of biosaline water. C = control; SA = salicylic acid; GA = gibberellic acid; TMT = thiamethoxam. W1 = urban supply water; W2 = 50% urban supply water + 50% fish-farming effluent; W3 = biosaline water. ¹Means followed by the same lowercase letter do not differ for water dilutions by the Scott-Knott test (p ≤ 0.05). ²Means followed by the same uppercase letter do not differ for seed treatments by the Scott-Knott test (p ≤ 0.05).

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Figure 2
Emergence (A and B) and emergence speed index (C and D) of melon seedlings. Grand Prix hybrid. grown from seeds treated and irrigated with different water dilutions. C = control; SA = salicylic acid; GA = gibberellic acid; TMT = thiamethoxam. W1 = urban supply water; W2 = 50% urban supply water + 50% fish-farming effluent; W3 = fish-farming effluent. ¹Means followed by the same letter do not differ by the Scott-Knott test (p ≤ 0.05).

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Figure 3
Shoot length (A and C) and root length (B and D) of melon seedlings. Goldex hybrid (A and B) and Grand Prix hybrid (C and D). grown from seeds treated and irrigated with different water. dilutions. C = control; SA = salicylic acid; GA = gibberellic acid; TMT = thiamethoxam. W1 = urban supply water; W2 = 50% urban supply water + 50% fish-farming effluent; W3 = fish-farming effluent. ¹Means followed by the same lowercase letter do not differ for water dilutions by the Scott-Knott test (p ≤ 0.05). ²Means followed by the same uppercase letter do not differ for seed treatments by the Scott-Knott test (p ≤ 0.05).

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Figure 4
Shoot dry mass (A and C) and root dry mass (B and D) of melon seedlings. Goldex hybrid (A and B) and Grand Prix hybrid (C and D). grown from seeds treated and irrigated with different water dilutions. C = control; SA = salicylic acid; GA = gibberellic acid; TMT = thiamethoxam. W1 = urban supply water; W2 = 50% urban supply water + 50% fish-farming effluent; W3 = fish-farming effluent. ¹Means followed by the same lowercase letter do not differ for water dilutions by the Scott-Knott test (p ≤ 0.05). ²Means followed by the same uppercase letter do not differ for seed treatments by the Scott-Knott test (p ≤ 0.05).

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Figure 5
Total amino acids (A and C) and proline (B and D) of melon seedlings. Goldex hybrid (A and B) and Grand Prix hybrid (C and D). grown from seeds treated and irrigated with different water dilutions. C = control; SA = salicylic acid; GA = gibberellic acid; TMT = thiamethoxam. W1 = urban supply water; W2 = 50% urban supply water + 50% fish-farming effluent; W3 = fish-farming effluent. ¹Means followed by the same lowercase letter do not differ for water dilutions by the Scott-Knott test (p ≤ 0.05). ²Means followed by the same uppercase letter do not differ for seed treatments by the Scott-Knott test (p ≤ 0.05).

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Table 1
Cation and anion contents, acidity, electrical conductivity, sodium adsorption ratio and classification of the waters used to irrigate melon (Cucumis melo L.) seedlings in a greenhouse.

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Table 2
Summary of the analysis of variance for the variables percentage of emergence (EP), emergence speed index (ESI), total shoot and root length (SL and RL), shoot and root dry mass (SDM and RDM), total soluble sugars (TSS), total amino acids (TAA) and proline (PRO) of melon seedlings (Cucumis melo L.) submitted to seed treatment with regulators and bioactivators (products) and irrigated with different water dilutions.

Water dilutions	Ca²⁺	Mg²⁺	Na⁺	K⁺	CO₃^2-	HCO₃^-	Cl^-	EC– 25 °C	pH	SAR^* * Sodium adsorption ratio;	WQS^ Water quality classification.
Water dilutions	.................. mmol_c L^-1...................							dS m^-1	pH	SAR^* * Sodium adsorption ratio;	WQS^ Water quality classification.
W1	0.9	0.4	3.4	0	0.6	3	3	0.55	8	4.2	C2S1
W2	10.8	10.9	1.3	0	1.2	3.6	5	3.18	8	0.4	C4S1
W3	15.7	20.1	30	1	0.6	3.4	42	5.97	8	7.3	C4S2

Goldex
Sources of variation	Degrees of freedom	Pr>Fc
Sources of variation	Degrees of freedom	ESI	EP	SL	RL	SDM	RDM	TSS	TAA	PRO
Water (W)	2	0.000**	0.052^ns	0.000^ Significant at 1%.	0.000**	0.000**	0.000**	0.395^ns	0.004**	0.008**
Product (P)	3	0.000**	0.005**	0.000**	0.036*	0.000**	0.029*	0.380^ns	0.346^ns	0.641^ns
W × P	6	0.000**	0.002**	0.004**	0.004**	0.036*	0.000**	0.445^ns	0.824^ns	0.600^ns
Error	36	--	--	--	--	--	--	--	--	--
Coeficient of variation %		4.21	3.26	5.08	7.14	8.33	20.98	4.15	15.77	6.23
Grand Prix
Sources of variation	Degrees of freedom	Pr>Fc
Sources of variation	Degrees of freedom	ESI	EP	SL	RL	SDM	RDM	TSS	TAA	PRO
Water (W)	2	0.003**	0.229^ns	0.000**	0.000**	0.000**	0.000**	0.135^ns	0.002**	0.039*
Product (P)	3	0.000**	0.048*	0.117^ns	0.000**	0.035*	0.008**	0.502^ns	0.001**	0.380^ns
W × P	6	0.847^ns	0.693^ns	0.007**	0.000**	0.175^ns	0.001**	0.406^ns	0.015^* * Significant at 5%.	0.574^ns
Error	36	--	--	--	--	--	--	--	--	--
Coeficient of variation %		9.68	7.79	7.19	9.27	17.09	7.94	14.2	22.34	9.8

[1] *e-mail: jose.eduardo@ifbaiano.edu.br

Brasil

Brasil

Pre-germination treatments of melon seeds for the production of seedlings irrigated with biosaline water

Tratamentos pré-germinativos de sementes de melão para a produção de mudas irrigadas com água biossalina

Abstract