Initial growth and chemical composition of pornuncia plant fertilized with phosphorus and inoculated with arbuscular mycorrhizal fungi

NASCIMENTO, Jorge Messias Leal do; MENEZES, Karen Mirella Souza; QUEIROZ, Mário Adriano Ávila; MELO, Adriana Mayumi Yano de

doi:10.1590/S1519-99402016000400001

Acessibilidade / Reportar erro

Brasil

Revista Brasileira de Saúde e Produção Animal

Español English

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Forragicultura e Pastagens • Rev. bras. saúde prod. anim. 17 (4) • Dec 2016 • https://doi.org/10.1590/S1519-99402016000400001 copy

Initial growth and chemical composition of pornuncia plant fertilized with phosphorus and inoculated with arbuscular mycorrhizal fungi

Authorship SCIMAGO INSTITUTIONS RANKINGS

SUMMARY

The aim of this study was to evaluate the influence of phosphate fertilization and mycorrhizal inoculation on the initial growth, chemical composition and mycorrhizal symbiosis in Pornuncia (Manihot sp. – Euphorbiaceae) plant. An experiment was conducted in a completely randomized design in factorial arrangement with three concentration of simple superphosphate (P1 – 5.14mg/dm³, P2 – 49.3mg/dm³ e P3 – 98.6mg/dm³) and three inoculation treatments (not inoculated – NI, inoculated with Claroideoglomus etunicatum – CE or GA – Gigaspora albida), in three replications, during 90 days. It was verified that inoculation with CE promoted increase in leaf area and crude protein concentration in Pornuncia plants, while the GA isolate provided higher mycorrhizal colonization and glomerospores number. On the other hand, the addition of superphosphate reduces the mycorrhizal colonization in Pornuncia plants. Although the phosphate fertilization does not affect the growth of Pornuncia plants, the P2 concentration promoted an increase of 15,0% of neutral detergent fiber content. Inoculation with Claroideoglomus etunicatum in Pornuncia plants increases leaf area and crude protein content in the aerial part, and may contribute to the development and improvement of the chemical composition of this forage plant.

Keywords:
NDF; glomeromycota; forage; manihot; semiarid

FMA	FFA	FFR	FSA	FSR	r/pa	AF	ALT	NF	DC
		g				cm²	cm		mm
CE	7,84^a	4,04^a	2,05^a	1,57^a	0,76^b	325,4^a	21,8^a	8,3^a	4,63^a
GA	7,34^a	4,53^a	1,94^a	1,65^a	0,85^a	259,8^ab	21,3^a	7,6^a	4,52^a
NI	7,52^a	3,17^a	1,86^a	1,07^a	0,57^c	239,2^b	17,7^a	9,1^a	4,86^a

FMA	MS	MM	MO	PB (%MS)	FDN (%MS)
FMA			%
CE	24,50^a	5,91^a	94,08^a	12,01^a	61,07^a
GA	24,53^a	6,18^a	93,47^a	8,43^b	62,66^a
NI	23,28^a	6,26^a	93,71^a	10,01^ab	59,35^a

UFBA - Universidade Federal da Bahia Avenida Adhemar de Barros nº 500 - Ondina , CEP 41170-110 Salvador-BA Brasil, Tel. 55 71 32836725, Fax. 55 71 32836718 - Salvador - BA - Brazil
E-mail: rbspa@ufba.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] *Endereço para correspondência: jorge_messias@ymail.com