Soil-based screening for iron toxicity tolerance in rice using pots

Sikirou, Mouritala; Saito, Kazuki; Dramé, Khady Nani; Saïdou, Aliou; Dieng, Ibnou; Ahanchédé, Adam; Venuprasad, R.

doi:10.1080/1343943x.2016.1186496

Cited by 39 publications

(44 citation statements)

References 22 publications

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“…The rice seeds were raised in the normal seedling nursery beds with untreated soil. The seedlings were transplanted at 21 days after sowing into treated pots with FeSO 4 , two seedlings per pot [22].…”

Section: Methodsmentioning

confidence: 99%

Effects of Iron on the Productivity of Lowland Rice (O. sativa L.) in Segregating Populations

Andrew¹,

Dorcas²,

Olawale³

2020

AJAF

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Rice plants have the tendency of taking up iron in the form of Fe 2+ , which is prevalent in paddy fields under flooded environments. But its deficiency or in excess of Fe 2+ in the soil affect several physiological functions of the plant. The objective of the study was to evaluates the effect of three ferrous sulphate concentration levels on the yield and yield components of lowland segregating rice populations. Three experiments were established in screenhouse concurrently in randomized complete block design in three replications in pots. Treatment comprised of 6 breeding lines each from two rice populations of F2 and F3 generations and two popular checks. Experiment one is the control without FeSO 4 treatment, while experiment two and three are F2 and F3 populations, respectively treated with FeSO 4 solution. Three concentration levels of FeSO 4 solution (600mg/kg of soil, 1200mg/kg of soil, and 1800mg/kg of soil,) were applied into each pots a week before transplanting in the treated experiments. Remarkable reduction in effective tiller number at 1800mg of Fe stress relative to the control was observed of 42.6% and 42.9% in F2 and F3 population, respectively. Significant reduction in grain yield of 33.5% and 36.4% at 1800mg of Fe compared to the control in F2 and F3 populations, respectively. The study showed that at 1200mg of Fe could be optimal for rice crop performance and at 1800mg of Fe becomes toxic to the plant as observed significant reduction in all agronomic traits especially in total grain yield. In F2 and F3 population, UPN 59, UPIA 2 and UPN 95 where the most stable genotypes across iron concentration levels. These genotypes could be used in population development for iron breeding programme.

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Section: Methodsmentioning

confidence: 99%

Effects of Iron on the Productivity of Lowland Rice (O. sativa L.) in Segregating Populations

Andrew¹,

Dorcas²,

Olawale³

2020

AJAF

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“… Becker and Asch (2005) define three environments in which iron toxicity occurs: (1) in the coastal plains and river deltas on young acid-sulphate soils; (2) in marshes, highland swamps, on clayey Ultisols and Histosols; and (3) in inland-valley swamps on sandy valley-bottom soils. Soil types with iron-toxicity risk were identified based from the literature ( Audebert and Fofana, 2009 ; Audebert et al, 2006 ; Becker and Asch, 2005 ; Chérif et al, 2009 ; Genon et al, 1994 ; Howeler, 1973 ; Jugsujinda and Patrick, 1993 ; Prade et al, 1993 ; Sahrawat, 2004 ; Sikirou et al, 2015 , Sikirou et al, 2016 ). Iron toxicity in rice has been reported on the following soils Oxisols (USDA soil taxonomy) = Ferralsols (WRB & FAO soil taxonomy 1 ) Ultisols (USDA soil taxonomy) = mostly Acrisols; also Alisols or Nitisols (WRB & FAO) Alfisols (USDA soil taxonomy) = Luvisols or Lixisols, and some Nitosols (WRB & FAO) Acid-sulphate soils = Thionic soils.…”

Section: Methodsmentioning

confidence: 99%

Mapping abiotic stresses for rice in Africa: Drought, cold, iron toxicity, salinity and sodicity

Oort

2018

Field Crops Research

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“…A high concentration of Fe 2+ in the rhizosphere has antagonistic effects on the uptake of essentials nutrients (P, K, and Zn) by the plants, causing the accumulation of harmful organic acids or hydrogen sulphides, and consequently leading to plant yield reduction [48]. Yield reductions of 12 to 100% have been previously observed in rice growing in iron toxic soils [49][50][51], depending on the level of iron toxicity, genetic background of genotypes, and soil fertility status. High iron availability in the soils can also lead to direct or indirect toxicity in the plants [52].…”

Section: Iron Toxicitymentioning

confidence: 99%

Breeding Maize for Tolerance to Acidic Soils: A Review

et al. 2018

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Acidic soils hamper maize (Zea mays L.) production, causing yield losses of up to 69%. Low pH acidic soils can lead to aluminum (Al), manganese (Mn), or iron (Fe) toxicities. Genetic variability for tolerance to low soil pH exists among maize genotypes, which can be exploited in developing high-yielding acid-tolerant maize genotypes. In this paper, we review some of the most recent applications of conventional and molecular breeding approaches for improving maize yield under acidic soils. The gaps in breeding maize for tolerance to low soil pH are highlighted and an emphasis is placed on promoting the adoption of the numerous existing acid soil-tolerant genotypes. While progress has been made in breeding for tolerance to Al toxicity, little has been done on Mn and Fe toxicities. More research inputs are therefore required in: (1) developing screening methods for tolerance to manganese and iron toxicities; (2) elucidating the mechanisms of maize tolerance to Mn and Fe toxicities; and, (3) identifying the quantitative trait loci (QTL) responsible for Mn and Fe tolerance in maize cultivars. There is also a need to raise farmers' and other stakeholders' awareness of the problem of Al, Mn, and Fe soil toxicities to improve the adoption rate of the available acid-tolerant maize genotypes. Maize breeders should work more closely with farmers at the early stages of the release process of a new variety to facilitate its adoption level. Researchers are encouraged to strengthen their collaboration and exchange low soil pH-tolerant maize germplasm.

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Soil-based screening for iron toxicity tolerance in rice using pots

Cited by 39 publications

References 22 publications

Effects of Iron on the Productivity of Lowland Rice (O. sativa L.) in Segregating Populations

Effects of Iron on the Productivity of Lowland Rice (O. sativa L.) in Segregating Populations

Mapping abiotic stresses for rice in Africa: Drought, cold, iron toxicity, salinity and sodicity

Breeding Maize for Tolerance to Acidic Soils: A Review

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