Co-inoculação de <i>Azospirillum brasilense</i> e <i>Herbaspirilum seropediceae</i> na cultura do milho

Dartora, Janaína; Marini, Deniele; Gonçalves, Edilaine. D. V.; Guimarães, Vandeir F.

doi:10.1590/1807-1929/agriambi.v20n6p545-550

Acessibilidade / Reportar erro

Brasil

Revista Brasileira de Engenharia Agrícola e Ambiental

Español English

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

SOIL, WATER AND PLANT MANAGEMENT • Rev. bras. eng. agríc. ambient. 20 (6) • Jun 2016 • https://doi.org/10.1590/1807-1929/agriambi.v20n6p545-550 copiar

Co-inoculação de Azospirillum brasilense e Herbaspirilum seropediceae na cultura do milho

Autoria SCIMAGO INSTITUTIONS RANKINGS

RESUMO

Bactérias dos gêneros Azospirillum e Herbaspirillum têm sido associadas à obtenção de incrementos na produtividade do milho. O objetivo deste estudo foi avaliar a produtividade e o teor nutricional do milho em resposta à inoculação de A. brasilense e H. seropedicae em associação com a adubação nitrogenada. O experimento foi conduzido em delineamento experimental de blocos ao acaso em esquema fatorial 4 x 5 com quatro repetições. Os tratamentos foram constituídos da inoculação de sementes (controle - sem N e sem inoculação, estirpe de A. brasilense - AbV5, estirpe de H. seropedicae - SmR1 e coinoculação AbV5 + SmR1) e doses de N (0, 40, 80, 120 e 160 kg ha^-1 N). Foram avaliados: altura de inserção da espiga, comprimento e diâmetro da espiga, número de fileiras por espiga e de grãos por fileira, massa de espiga, produtividade e teores de NPK em folhas e grãos. Não houve interação entre os fatores em estudo. A coinoculação de estirpes proporcionou incremento de 12% no teor de P foliar em relação ao controle e a adubação nitrogenada proporcionou incremento na produtividade e teor de P foliar até a máxima dose estudada.

Palavras-chave:
Zea mays L.; bactérias promotoras do crescimento; fito-hormônios

SV	DF	Mean squares
SV	DF	EIH	EL	ED	NRE	NGR	EW	YIELD	NL	PL	KL	NG	PG	KG
Block	3	591.59	1.32	2.63	0.08	5.81	1215.41	1226825	25.31	0.23	909.34	1.80	0.50	0.97
Inoculant	3	143.28^ , *** Significant at 0.05 and 0.01 by F test;	4.28^ , *** Significant at 0.05 and 0.01 by F test;	6.93^ , *** Significant at 0.05 and 0.01 by F test;	0.08 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	6.63 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	2894.04^ , *** Significant at 0.05 and 0.01 by F test;	4103749 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	34.01 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	0.60^* *, ** Significant at 0.05 and 0.01 by F test;	36.58 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	64.78^* *, ** Significant at 0.05 and 0.01 by F test;	0.18 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	1.16 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation
N doses	4	128.02^ , *** Significant at 0.05 and 0.01 by F test;	1.50^* *, ** Significant at 0.05 and 0.01 by F test;	6.63^ , *** Significant at 0.05 and 0.01 by F test;	1.08 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	4.29 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	2204.79^* *, ** Significant at 0.05 and 0.01 by F test;	9443146^ , *** Significant at 0.05 and 0.01 by F test;	17.53 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	0.68^ , *** Significant at 0.05 and 0.01 by F test;	14.87 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	22.78 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	0.25 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	1.92 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation
I X N	12	37.46 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	0.22 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	1.56 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	1.98 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	2.87 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	466.03 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	1313974 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	13.36 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	0.18 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	9.32 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	14.94 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	0.14 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation	0.51 ^ns ns Not significant; SV – Source of variation; DF – Degrees of freedom; CV – Coefficient of variation
Residue	57	33.82	0.47	0.81	1.18	3.47	647.12	1805781	14.13	0.17	21.95	19.38	0.20	1.06
CV (%)		4.29	3.62	1.72	6.88	4.75	9.56	13.84	12.0	12.08	8.94	33.6	23.01	6.85

Treatment	EIH	EL	ED	NRE	NGR	EW	YIELD	NL	NG	PL	PG	KL	KG
Treatment	cm		Mm	NRE	NGR	g	kg ha^-1	NL	NG	PL	PG	KL	KG
Control	138 a	18 b	52 b	16 a	39 a	252 b	12,651 a	30 a	13 ab	3.2 b	2.0 a	54 a	15 a
AbV5	137 ab	18 b	52 b	16 a	39 a	260 ab	12,537 a	32 a	11 b	3.3 ab	1.8 a	53 a	15 a
SmR1	135 ab	19 a	53 a	16 a	39 a	277 a	12,905 a	30 a	12 ab	3.6 a	2.0 a	52 a	15 a
AbV5 + SmR1	132 b	19 a	53 a	16 a	40 a	275 a	13,573 a	33 a	16 a	3.5 ab	2.0 a	51 a	15 a
Mean	136	19	52	16	39	266	12,916	31	13	3.4	2.0	52	15
CV (%)	4.29	3.62	1.72	6.88	4.75	9.56	12.77	12.00	33.60	12.08	23.01	8.94	6.85

Unidade Acadêmica de Engenharia Agrícola Unidade Acadêmica de Engenharia Agrícola, UFCG, Av. Aprígio Veloso 882, Bodocongó, Bloco CM, 1º andar, CEP 58429-140, Campina Grande, PB, Brasil, Tel. +55 83 2101 1056 - Campina Grande - PB - Brazil
E-mail: revistagriambi@gmail.com

Acompanhe os números deste periódico no seu leitor de RSS

[1] janaina_dartora@yahoo.com.br (Corresponding author)