Sunflower growth according to seed inoculation with endophytic bacteria
The sunflower crop has a great importance worldwide, due to the oil of excellent quality extracted from its seeds and in natura grains that are consumed in various ways. However, drought is one of the main environmental factors that limit its yield. An experiment was carried out under controlled gre...
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Universidade Federal de Goiás
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doaj-116cf189a50d41bbb36980781eb78b962020-11-24T23:06:42ZengUniversidade Federal de Goiás Pesquisa Agropecuária Tropical1983-40632014-06-0144214215010.1590/S1983-40632014000200008 Sunflower growth according to seed inoculation with endophytic bacteriaJuliana Fernandes dos Santos0Bárbara Lima do Sacramento1Katia Nubia Azevedo Barros Mota2Jorge Teodoro de Souza3André Dias de Azevedo Neto4Universidade Federal do Recôncavo da Bahia (UFRB), Centro de Ciências Agrárias, Ambientais e Biológicas, Cruz das Almas, BA, Brasil.Universidade Federal do Recôncavo da Bahia (UFRB), Centro de Ciências Agrárias, Ambientais e Biológicas, Cruz das Almas, BA, Brasil.Universidade Federal do Recôncavo da Bahia (UFRB), Centro de Ciências Agrárias, Ambientais e Biológicas, Cruz das Almas, BA, Brasil.Universidade Federal do Recôncavo da Bahia (UFRB), Centro de Ciências Agrárias, Ambientais e Biológicas, Cruz das Almas, BA, Brasil.Universidade Federal do Recôncavo da Bahia (UFRB), Centro de Ciências Exatas e Tecnológicas, Cruz das Almas, BA, Brasil.The sunflower crop has a great importance worldwide, due to the oil of excellent quality extracted from its seeds and in natura grains that are consumed in various ways. However, drought is one of the main environmental factors that limit its yield. An experiment was carried out under controlled greenhouse conditions, in a completely randomized experimental design, in order to determine the effect of endophytic bacteria inoculation (Bacillus sp. and Enterobacter cloacae) on the growth and contents of nutrients and organic solutes, in sunflower leaves and roots under water deficit. Plant height, stem diameter, fresh and dry biomass of shoot and roots, as well as contents of N, P, K, soluble carbohydrates, free proline, free amino acids and soluble proteins, were determined at 35 days after the plant emergence. The water deficit reduced plant growth regardless inoculation. However, under optimum conditions of soil moisture, the combination of both endophytic bacteria increased the sunflower growth. The water deficit also increased the N and K contents in leaves, as well as the organic solutes content in shoots, especially in inoculated plants. These results suggest that the inoculation of endophytic bacteria may increase the capacity of drought stressed plants to perform the osmotic adjustment through a higher accumulation of organic solutes, when compared to plants not inoculated.https://www.revistas.ufg.br/pat/article/view/24430Helianthus annuus L.Bacillus sp.Enterobacter cloacaemineral nutritionwater deficit |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Juliana Fernandes dos Santos Bárbara Lima do Sacramento Katia Nubia Azevedo Barros Mota Jorge Teodoro de Souza André Dias de Azevedo Neto |
spellingShingle |
Juliana Fernandes dos Santos Bárbara Lima do Sacramento Katia Nubia Azevedo Barros Mota Jorge Teodoro de Souza André Dias de Azevedo Neto Sunflower growth according to seed inoculation with endophytic bacteria Pesquisa Agropecuária Tropical Helianthus annuus L. Bacillus sp. Enterobacter cloacae mineral nutrition water deficit |
author_facet |
Juliana Fernandes dos Santos Bárbara Lima do Sacramento Katia Nubia Azevedo Barros Mota Jorge Teodoro de Souza André Dias de Azevedo Neto |
author_sort |
Juliana Fernandes dos Santos |
title |
Sunflower growth according to seed inoculation with endophytic bacteria |
title_short |
Sunflower growth according to seed inoculation with endophytic bacteria |
title_full |
Sunflower growth according to seed inoculation with endophytic bacteria |
title_fullStr |
Sunflower growth according to seed inoculation with endophytic bacteria |
title_full_unstemmed |
Sunflower growth according to seed inoculation with endophytic bacteria |
title_sort |
sunflower growth according to seed inoculation with endophytic bacteria |
publisher |
Universidade Federal de Goiás |
series |
Pesquisa Agropecuária Tropical |
issn |
1983-4063 |
publishDate |
2014-06-01 |
description |
The sunflower crop has a great importance worldwide, due to the oil of excellent quality extracted from its seeds and in natura grains that are consumed in various ways. However, drought is one of the main environmental factors that limit its yield. An experiment was carried out under controlled greenhouse conditions, in a completely randomized experimental design, in order to determine the effect of endophytic bacteria inoculation (Bacillus sp. and Enterobacter cloacae) on the growth and contents of nutrients and organic solutes, in sunflower leaves and roots under water deficit. Plant height, stem diameter, fresh and dry biomass of shoot and roots, as well as contents of N, P, K, soluble carbohydrates, free proline, free amino acids and soluble proteins, were determined at 35 days after the plant emergence. The water deficit reduced plant growth regardless inoculation. However, under optimum conditions of soil moisture, the combination of both endophytic bacteria increased the sunflower growth. The water deficit also increased the N and K contents in leaves, as well as the organic solutes content in shoots, especially in inoculated plants. These results suggest that the inoculation of endophytic bacteria may increase the capacity of drought stressed plants to perform the osmotic adjustment through a higher accumulation of organic solutes, when compared to plants not inoculated. |
topic |
Helianthus annuus L. Bacillus sp. Enterobacter cloacae mineral nutrition water deficit |
url |
https://www.revistas.ufg.br/pat/article/view/24430 |
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