Biological nitrogen fixation associated with sugar cane and rice: Contributions and prospects for improvement

Boddey, Robert M.; Oliveira, O. C. de; Urquiaga, Segundo; Reis, Verônica Massena; Olivares, Fábio Lopes; Baldani, V. L. D.; Döbereiner, Johanna

doi:10.1007/978-94-011-0053-3_9

Cited by 119 publications

(79 citation statements)

References 69 publications

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“…Herbaspirillum spp. another diazotrophic endophyte occurring in large numbers within sugarcane is able to fix atmospheric N at high sucrose concentration at a pH range of 5.3-8.0 (Boddey et al 1995;Baldani et al 1986;Olivares et al 1996).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen use efficiency of sugarcane in relation to its BNF potential and population of endophytic diazotrophs at different N levels

et al. 2007

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The nitrogen fixing bacterial endophytes Gluconacetobacter diazotrophicus and Herbaspirillum spp. have been proposed to benefit sugarcane (Saccaharum spp. hybrids) growth. Variable populations of these endophytes exist depending upon ontogenic and climatic variations as well. This study investigates the effect of variable chemical nitrogen application in soil on the population of endophytic diazotrophs, acetylene reduction ability of excised roots, plant N-nutrient use efficiency and probable interactions among different parameters in eight commercial sugarcane varieties of subtropical India. Recovery efficiency (RE), agronomic efficiency (AE), partial factor productivity (PFP) and physiologic efficiency (PE) indicators were used for accounting N-nutrient use efficiency. The population of G. diazotrophicus was more at N 75 compared to N 0 and N 150 , whereas Herbaspirillum population increased from N 0 to N 150 . ARA was positively correlated with Gluconacetobacter population in rhizosphere and root, whereas it had poor correlation with Herbaspirillum population. Positive correlation of RE and AE with ARA of roots, Gluconacetobacter and Herbaspirillum populations in roots and stems indicate their positive contribution in total nitrogen uptake by the plant per kg of N applied. Average PFP was 808.9 at N 75 compared to 408.7 at N 150 indicating that N was utilized efficiently at low N input status in sugarcane. Strong positive correlations of AE 75 (agronomic efficiency from 75 kg N ha -1 to 150 kg N ha -1 ) with N-uptake (r 2 = 0.615), cane yield (r 2 = 0.758) and PFP (r 2 = 0.758) and other parameters compared to AE (agronomic efficiency from 0 kg N ha -1 to 75 kg N ha -1 or 150 kg N ha -1 ) correlations with N-uptake (r 2 = 0.111), cane yield (r 2 = 0.368) and PFP (r 2 = 0.190) indicated that the AE of sugarcane was strongly directed towards producing more cane yield per unit of N fertilizer once the sugarcane plant has established using initial dose of nitrogen and thus AE 75 seems to be a more appropriate indicator for accounting N-nutrient use efficiency in sugarcane.

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Section: Introductionmentioning

confidence: 99%

Nitrogen use efficiency of sugarcane in relation to its BNF potential and population of endophytic diazotrophs at different N levels

et al. 2007

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“…These examples all demonstrate that there is also great potential for using GUS and other marker genes in studies of associative N2 fixation between diazotrophs and non-legumes such as cereals or C4 grasses (Boddey et al, 1995).…”

Section: Microbial Ecology: Detection Of Inoculant Strains Using Simpmentioning

confidence: 91%

New techniques for studying competition by Rhizobia and for assessing nitrogen fixation in the field

1995

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“…The level of N fixed by endophytes and the proportion contributed to the plant are controversial (Giller & Merckx 2003). Estimates range from 30 to 80 kg N ha −1 year −1 (Boddey et al 1995). Under optimal conditions, some sugarcane genotypes may satisfy a significant part of their N requirements by endophytic nitrogen fixation.…”

Section: Apoplastic Sucrose Helps Sustain Bacterial Endophytesmentioning

confidence: 99%

Water Relations and Cell Expansion of Storage Tissue

Welbaum

2013

Sugarcane: Physiology, Biochemistry, and Functional Biology

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Biological nitrogen fixation associated with sugar cane and rice: Contributions and prospects for improvement

Cited by 119 publications

References 69 publications

Nitrogen use efficiency of sugarcane in relation to its BNF potential and population of endophytic diazotrophs at different N levels

Nitrogen use efficiency of sugarcane in relation to its BNF potential and population of endophytic diazotrophs at different N levels

New techniques for studying competition by Rhizobia and for assessing nitrogen fixation in the field

Water Relations and Cell Expansion of Storage Tissue

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