Maize response to inoculation with strains of plant growth-promoting bactéria
| Autor: | Gustavo Castoldi, Janaína Dartora, Edilaine Della Valentina Gonçalves, Cid R. J. Menezes, Mariângela Brito Freiberger, Vandeir Francisco Guimarães |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Environmental Engineering Biofertilizer Azospirillum sp 030106 microbiology Randomized block design Biology 03 medical and health sciences Human fertilization Zea mays L Dry matter lcsh:Agriculture (General) fito-hormônios Inoculation Crop yield Sowing 04 agricultural and veterinary sciences lcsh:S1-972 Phytohormones Horticulture Agronomy Shoot 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Rhizobium sp Agronomy and Crop Science |
| Zdroj: | Revista Brasileira de Engenharia Agrícola e Ambiental-Agriambi, Vol 20, Iss 7, Pp 606-611 Revista Brasileira de Engenharia Agrícola e Ambiental v.20 n.7 2016 Revista Brasileira de Engenharia Agrícola e Ambiental Universidade Federal de Campina Grande (UFCG) instacron:UFCG Revista Brasileira de Engenharia Agrícola e Ambiental, Volume: 20, Issue: 7, Pages: 606-611, Published: JUL 2016 |
| ISSN: | 1415-4366 |
| DOI: | 10.1590/1807-1929/agriambi.v20n7p606-611 |
| Popis: | The aim of this study was to evaluate the response of maize to inoculation with strains of plant growth-promoting bacteria (PGPB) in two cultivation years. The experiment was set in a randomized block design with four replicates in two cultivation years (2012/13 and 2013/14). The treatments consisted of PGPB inoculation: control (without N and without inoculation); 30 kg of N ha-1 at sowing (N1); 160 kg of N ha-1 (N1 + 130 kg of N ha-1 as top-dressing); N1 + A. brasilense, Ab-V5; N1 + A. brasilense, HM053; N1 + Azospirillum sp. L26; N1 + Azospirillum sp. L27; N1 + Enhydrobacter sp. 4331; N1 + Rhizobium sp. 8121. Basal stem diameter, plant height, leaf area, shoot dry matter and yield were evaluated. The strain of Rhizobium sp. 8121and the isolate Azospirillum sp. L26 associated with 30 kg of N ha-1 at sowing promoted yields equivalent to that of the N fertilization of 160 kg ha-1, demonstrating the potential to be used in the inoculation of maize seeds. RESUMO Neste trabalho objetivou-se avaliar a resposta do milho à inoculação de estirpes de bactérias promotoras do crescimento de plantas (BPCP's) em dois anos de cultivo. O experimento foi conduzido em delineamento experimental de blocos ao acaso com quatro repetições em dois anos de cultivo (2012/13 e 2013/14). Os tratamentos foram constituídos pela inoculação de BPCP's: controle (sem N e sem inoculação); 30 kg ha-1 N na semeadura (N1); 160 kg ha-1 N (N1 + 130 kg ha-1 N em cobertura); N1 + A. brasilense, Ab-V5; N1 + A. brasilense, HM053; N1 + Azospirillum sp., L26; N1 + Azospirillum sp., L27; N1 + Enhydrobacter sp. 4331; N1 + Rhizobium sp. 8121. Diâmetro basal do colmo, altura da planta, área foliar, massa seca da parte aérea e produtividade foram avaliados. A estirpe de Rhizobium sp. 8121 e o isolado de Azospirillum sp. L26 associados à adubação com 30 kg ha-1 N na semeadura proporcionaram produtividades equivalentes à adubação com 160 kg ha-1 N demonstrando potencial para serem utilizadas na inoculação de sementes de milho. |
| Databáze: | OpenAIRE |
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