Yield increases in spring wheat (Triticum aestivum L.) inoculated withAzospirillum lipoferum under greenhouse and field conditions of a temperate region

Mertens, Tatiane Beatriz; Heß, Dieter

doi:10.1007/bf02220773

Cited by 59 publications

(36 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, in Israel wheat cultivars responded to the inoculation with Azospirillum under field conditions. The success of such behavior has been attributed to the absence of competition of Azospirillum with other native bacteria and interaction between wheat cultivars and Azospirillum (Mertens & Hess, 1984).…”

Section: Resultsmentioning

confidence: 99%

Nitrogen translocation in wheat inoculated with Azospirillum and fertilized with nitrogen

Rodrigues

Didonet

Gouveia

et al. 2000

Pesq. agropec. bras.

View full text Add to dashboard Cite

-The productivity and the translocation of assimilates and nitrogen (N) were compared after inoculation of wheat (Triticum aestivum L., cv. BR-23) seeds with two strains of Azospirillum brasilense (strains 245 and JA 04) under field conditions. The inoculation of wheat seeds was done with a peat inoculant at sowing time. Plant material for evaluations were collected at anthesis and maturity. No differences in grain yield and in the translocation of assimilates resulting from inoculation were detected. Differences were observed in relation to N rates (0, 15, and 60 kg ha -1 ). N content in the grain increased significantly in the bacteria-inoculated treatments in which N was not added. This increase in N content in the grain with inoculation was probably due to higher N uptake after anthesis without any significant contribution on the grain yield. Such increment was of 8.4 kg ha -1 of N representing 66% more N than in no inoculated treatment. Regardless of the inoculation and the rate of N applied, it was observed that about 70% of the N accumulated at anthesis was translocated from vegetative parts to the grain.Index terms: Triticum aestivum, nitrogen fertilization, nitrogen metabolism, assimilation, nitrogen fixing bacteria. TRANSLOCAÇÃO DE NITROGÊNIO EM TRIGO INFECTADO POR AZOSPIRILLUME ADUBADO COM NITROGÊNIO RESUMO -Com o objetivo de verificar o efeito da inoculação na produtividade, na translocação de assimilados e de N, durante o desenvolvimento da planta de trigo (Triticum aestivum L. cv. BR-23), foi realizado este estudo em condições de campo, com duas estirpes de Azospirillum brasilense (245 e JA 04). A inoculação foi efetuada no momento da semeadura, com inoculante turfoso. As coletas dos materiais para as avaliações foram efetuadas na antese e na maturação. Não foi detectado efeito da inoculação na produção de grãos e na translocação de assimilados. Diferenças foram observadas em relação às doses de N (0, 15 e 60 kg ha -1 ). O teor de N no grão aumentou significativamente nos tratamentos com bactérias, sem adição de N. Esse aumento foi provavelmente decorrente da maior absorção de N após a antese, sem reflexo significativo no rendimento de grãos. Tal aumento no N absorvido após a antese foi superior em 66% ao tratamento sem inoculação, representando um incremento de cerca de 8,4 kg ha -1 . Independentemente da inoculação e da dose de N estudadas, observou-se que aproximadamente 70% do N acumulado na antese foi translocado das partes vegetativas para o grão.Termos para indexação: Triticum aestivum, adubação nitrogenada, metabolismo do nitrogênio, assimilação, bactéria fixadora de nitrogênio.

show abstract

Section: Resultsmentioning

confidence: 99%

Nitrogen translocation in wheat inoculated with Azospirillum and fertilized with nitrogen

Rodrigues

Didonet

Gouveia

et al. 2000

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…Experiments as field trials with dry land areas, the co-inoculations of PGPR strains for wheat, maize and barley with chemical fertilizers gave improved response [3,183,[192][193][194][195][196][197]. [24] Döbereiner J, editor Biological N2 fixation by endophytic diazotrophs in non-leguminous crops in the tropics.…”

Section: Pgpr Reduce Chemical Fertilizationmentioning

confidence: 99%

The Role of Soil Beneficial Bacteria in Wheat Production: A Review

Çakmakçı¹,

Turan²,

Kıtır³

et al. 2017

Wheat Improvement, Management and Utilization

View full text Add to dashboard Cite

Free-living plant growth-promoting rhizobacteria (PGPR) have favourable effect on plant growth, tolerance against stresses and are considered as a promising alternative to inorganic fertilizer for promoting plant growth, yield and quality. PGPR colonize at the plant root, increase germination rates, promote root growth, yield, leaf area, chlorophyll content, nitrogen content, protein content, tolerance to drought, shoot and root weight, and delayed leaf senescence. Several important bacterial characteristics, such as biological nitrogen fixation, solubilization of inorganic phosphate and mineralization of organic phosphate, nutrient uptake, 1-aminocydopropane-1-carboxylic acid (ACC) deaminase activity and production of siderophores and phytohormones, can be assessed as plant growth promotion traits. By efficient use, PGPR is expected to contribute to agronomic efficiency, chiefly by decreasing costs and environmental pollution, by eliminating harmful chemicals. This review discusses various bacteria acting as PGPR, their genetic diversity, screening strategies, working principles, applications for wheat and future aspects in terms of efficiency, mechanisms and the desirable properties. The elucidation of the diverse mechanisms will enable microorganisms developing agriculture further.

show abstract

“…This association can also increase total dry weight, total N in plant shoots, total number of tillers and fertile spikes, grain weight, leaf size, germination rate, root system development, nutrient uptake and phytohormone production. Mertens and Hess (1984) observed that the root/shoot ratio increased in wheat when inoculated with Azospirillum because of phytohormone production by the bacterium. Plants shoot growth may also increase by Azospirillum association because of more absorption of NO 3 − , NH 4 + , PO 4 3− , K + and Fe 2+ (Jain and Patriquin 1985;Lin et al 1983;Marty and Ladha 1987).…”

Section: Introductionmentioning

confidence: 99%

Absorption efficiency of N, P, K through triple inoculation of wheat (Triticum aestivum L.) by Azospirillum brasilense, Streptomyces sp., Glomus intraradices and manure application

Ardakani

Mazaheri

Mafakheri

et al. 2011

Physiol Mol Biol Plants

View full text Add to dashboard Cite

This study examined the effects of different biofertilizers and manure on the absorption and absorption efficiency of macronutrients by wheat in Alborz Province, Iran. The experimental design was factorial in the form of a randomized complete block design with three replications. The four factors of the experiment were Azospirillum (with 600 g/ha and without), mycorrhiza (with 1 kg/ha and without), Streptomyces (with 0.5 kg/ha and without) and manure (with 30 t/ha and without). To measure N, P and K, plants were harvested one time when grains were at dough stage and another time at plant maturity, oven dried, grinded and analyzed. Azospirillum, mycorrhiza and manure had a significant effect (p≤0.01) on most of the measured traits, but the effect of Streptomyces was not significant. The two-fold and three-fold interactions significantly affected the absorption and absorption efficiency of the three macronutrients. In most cases, four-fold interactions yielded the highest values. Overall, the experimental results indicate that biofertilizers and manure can naturally meet most of the plant's nutritional requirements, improve the efficiency of nutrient absorption and replace part of chemical fertilizers in sustainable agricultural production systems.

show abstract

Yield increases in spring wheat (Triticum aestivum L.) inoculated withAzospirillum lipoferum under greenhouse and field conditions of a temperate region

Cited by 59 publications

References 18 publications

Nitrogen translocation in wheat inoculated with Azospirillum and fertilized with nitrogen

Nitrogen translocation in wheat inoculated with Azospirillum and fertilized with nitrogen

The Role of Soil Beneficial Bacteria in Wheat Production: A Review

Absorption efficiency of N, P, K through triple inoculation of wheat (Triticum aestivum L.) by Azospirillum brasilense, Streptomyces sp., Glomus intraradices and manure application

Contact Info

Product

Resources

About