Mitigation of Iron Toxicity and Iron, Zinc, and Manganese Nutrition of Wetland Rice Cultivars (Oryza sativaL.) Grown in Iron-Toxic Soil

2014 ◽  
Vol 42 (11) ◽  
pp. 1604-1609 ◽  
Author(s):  
Mohammad Shahid ◽  
Amaresh Kumar Nayak ◽  
Arvind Kumar Shukla ◽  
Rahul Tripathi ◽  
Anjani Kumar ◽  
...  
Keyword(s):  
Iron Toxicity ◽  
Wetland Rice ◽  
Rice Cultivars ◽  
Manganese Nutrition

The mechanism of excessive iron‐uptake (iron toxicity) of wetland rice

1984 ◽  
Vol 7 (1-5) ◽  
pp. 177-185 ◽  
Author(s):  
G. Benckiser ◽  
J. C. G. Ottow ◽  
I. Watanabe ◽  
S. Santiago
Keyword(s):  
Iron Uptake ◽  
Iron Toxicity ◽  
Wetland Rice

scholarly journals Selection of local swamp rice cultivars from Kalimantan (Indonesia) tolerant to iron stress during vegetative stage

2020 ◽  
Vol 21 (12) ◽  
Author(s):  
Vina Novianti ◽  
Didik Indradewa ◽  
Maryani MARYANI ◽  
Diah Rachmawati
Keyword(s):  
Leaf Length ◽  
Iron Toxicity ◽  
Vegetative Stage ◽  
Enzyme Analysis ◽  
Percentage Increase ◽  
Rice Cultivars ◽  
Iron Stress ◽  
Potential Region ◽  
Biochemical Component ◽  
Selection Of

Abstract. Novianti V, Indradewa D, Maryani, Rachmawati D. 2020. Selection of local swamp rice cultivars from Kalimantan (Indonesia) tolerant to iron stress during vegetative stage. Biodiversitas 21: 5595-5606. Kalimantan with the large swamp area is a potential region in Indonesia to develop local rice cultivars with high tolerance to iron toxicity in tidal lowlands. This research was conducted to select iron toxicity-tolerant in local Kalimantan-rice cultivars, namely: Amas (AMS), Pandan Ungu (PDU), Kambang (KMB), Suatek Merah (SM), Siam Unus Mayang (SUM), Siam Unus Kuning (SUK), and Siam 11 Panjang (S11P). As control, two rice cultivars: Ciherang (iron toxicity-susceptible) and Inpara 5 (iron toxicity-tolerant) were also used. The seeds were grown hydroponically for 35 DAP (days after planting) in Yoshida nutrient solution containing 0 ppm (control), 100 ppm (low), and 400 ppm (high) FeS2 as pyrite treatments. Morphological analysis (plant height, leaf length and width, and leaves number) showed that PDU and KMB cultivars have better characters for tolerating iron toxicity. The highest level of chlorophyll and carotenoid contents during iron toxicity treatment was observed in KMB cultivar. AMS cultivar had the highest proline level under high iron stress. Antioxidant enzyme analysis showed that AMS, PDU, and KMB cultivars had a high percentage increase in the activity of superoxide dismutase (SOD), hydrogen peroxide (H2O2), and ascorbate peroxidase (APX) enzymes when exposed to high pyrite conditions. Based on morphophysiological characteristics, biochemical component, and enzymatic antioxidant activity, it can be concluded that AMS, PDU, and KMB cultivars are potential candidates as iron toxicity-tolerant rice.

Tolerance of rice cultivars to iron toxicity

1987 ◽  
Vol 10 (6) ◽  
pp. 653-661 ◽  
Author(s):  
N.K. Fageria ◽  
N. A. Rabelo
Keyword(s):  
Iron Toxicity ◽  
Rice Cultivars

scholarly journals Elemental Composition of Two Rice Cultivars under Potentially Toxic an Aquept and Aquent

2009 ◽  
Vol 1 (1) ◽  
pp. 46-49 ◽  
Author(s):  
Adesola Olutayo OLALEYE ◽  
Ayoade Olayiwola OGUNKUNLE ◽  
Baij Nath SINGH ◽  
Festus Olugbenga ODELEYE ◽  
Oyeyemi Adigun DADA ◽  
...  
Keyword(s):  
Grain Yield ◽  
Elemental Composition ◽  
Dry Matter ◽  
Iron Toxicity ◽  
Soil Types ◽  
Susceptible Cultivar ◽  
Dry Matter Yield ◽  
Rice Cultivars ◽  
Nutrient Contents ◽  
Toxicity Scores

Iron toxicity is a major nutrient disorder affecting rice production of wetland rice in the irrigated and rainfed ecosystem in West Africa sub-region. Little attention has been paid to evaluating nutrient contents of rice cultivars grown on such soils and their relationship to the iron toxicity scores, grain yield and dry matter yields. A pot experiment was conducted on two potentially Fe-toxic soils (Aeric Fluvaquent and Aeric Tropaquept). The experiment was a 2 x 2 x 4 factorial experiment with three replicates in arranged in a randomized fashion. The factors were two soil types, two rice cultivars (ITA 212) and tolerant (Suakoko 8) and four Fe 2+ levels (control, 1000, 3000 and 4000 mg L-1). The result showed that for both susceptible cultivar (ITA 212) and the relatively tolerant (Suakoko 8) cultivar, little or no differences were observed in their elemental composition with regards to micro and macro-nutrients. For the susceptible cultivar, results showed that none of the tissue nutrients significantly relates to iron toxicity scores (ITS), grain yield and dry matter yield on both soil types. However, for the tolerant cultivar, ITS was observed to be significantly related to tissue K and P contents on the two soil types respectively. Tissue Ca and Mg were observed to be significantly related to the dry matter yield (DMY) on Aeric Tropquept. It could be concluded that for these rice cultivars grown on two potentially Fe-toxic soils, different tissue nutrients may trigger the manifestation of bronzing or yellowing symptoms of rice cultivars.

scholarly journals Effect of phosphorus on iron toxicity: photosynthetic and antioxidant responses of rice cultivars

2020 ◽  
Vol 15 (4) ◽  
pp. 1-8
Author(s):  
M.S. Tavares ◽  
A.C.R. Marques ◽  
D. Sausen ◽  
R.Q.S. Strauss ◽  
A.D. Silva ◽  
...  
Keyword(s):  
Iron Toxicity ◽  
Rice Cultivars ◽  
Antioxidant Responses

scholarly journals Somatic embryos response against iron stress in in-vitro culture condition of East Kalimantan (Indonesia) rice

2019 ◽  
Vol 20 (8) ◽  
Author(s):  
NURHASANAH NURHASANAH ◽  
RAMITA ◽  
BAMBANG SUPRIYANTO ◽  
WIDI SUNARYO
Keyword(s):  
In Vitro Culture ◽  
Culture Condition ◽  
Somatic Embryos ◽  
Iron Concentration ◽  
Iron Toxicity ◽  
Regeneration Ability ◽  
Rice Cultivars ◽  
Iron Stress ◽  
East Kalimantan

Abstract. Nurhasanah, Ramita, Supriyanto B, Sunaryo W. 2019. Somatic embryos response against iron stress in in-vitro culture condition of East Kalimantan (Indonesia) rice. Biodiversitas 20: 2288-2294. Iron toxicity is major abiotic stress that limits rice production in most tropical regions. A high iron concentration will lead to the abnormal growth and development, decreased yield, and even death of the plant. Compared to other recommended treatments to overcome iron toxicity problems, the use of tolerant cultivars is considered the most effective and efficient approach. In this study, the tolerant character against iron stress was developed using East Kalimantan local rice cultivars through somaclonal variation and in vitro selection. The somatic embryos from four indica rice cultivars, Mayas Pancing, Gedagai, Siam, and Serai, were selected in iron-containing media. Five levels of iron concentrations were applied in the selection media 0; 27.8; 55.6; 83.4, and 111.2 mg.L-1 of FeSO4.7H2O. The media acidity was adjusted to pH 4.00 for iron-containing media and 5.8 for the zero iron concentration (without iron). The results showed that the survival ability of embryonic calli (EC) was significantly influenced by the level of iron concentration. The absence of an iron source in the selection media led to lower EC survival. The percentage of EC survival ability was even lower than that of the presence of two folds of normal iron concentration (55.6 mgL-1 of FeSO4.7H2O). Three and four folds of the normal iron concentration (83.6 mg.L-1 and 111.2 mg.L-1 FeSO4.7H2O) mostly produced the lowest percentage of EC survival for the four local rice cultivars. Mayas Pancing had better tolerance to iron stress and the highest EC survival number compared to other genotypes. The role of genotype was clearly observed in the regeneration ability of EC. Plantlets were only produced on the EC from the Serai Gunung and Siam cultivars.

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