Sorghum growth, root responses, and soil‐solution aluminum and manganese on pH‐stratified sandy soil<sup>§</sup>

Miller, Gregory; Mamo, Martha; Drijber, Rhae A.; Wortmann, Charles S.; Renken, Roger

doi:10.1002/jpln.200700227

Cited by 6 publications

(6 citation statements)

References 35 publications

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“…Plants grown in soils with high levels of aluminium have reduced root systems and exhibit a variety of nutrientdeficiency symptoms, with a consequent decrease in yield. Decreased above ground plant growth in soil with high percentage of Al saturation has been reported (Miller et al, 2009). This was accompanied by reduced uptake of P and N in the acidic soil.…”

Section: Discussionmentioning

confidence: 71%

Response of selected sorghum (Sorghum bicolor L. Moench) germplasm to aluminium stress

Emily¹,

Beatrice²,

Augustino³

et al. 2014

Afr. J. Agric. Res.

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Sorghum (Sorghum bicolor L. (Moench) is an important food security crop in sub-Saharan Africa. Its production on acid soils is constrained by aluminium (Al) stress, which primarily interferes with root growth. Sorghum cultivation is widespread in Kenya, but there is limited knowledge on response of the Kenyan sorghum cultivars to aluminium stress. The aim of the study was to identify and morphologically characterise aluminium tolerant sorghum accessions. The root growth of three hundred and eighty nine sorghum accessions from local or international sources was assessed under 148 μM Al in soaked paper towels, and 99 of these were selected and further tested in solution. Ten selected accessions were grown out in the field, on un-limed (0 t/ha) or limed (4 t/ha) acid (pH 4.3) soils with high (27%) Al saturation, and their growth and grain yield was assessed. Although the Al stress significantly (P ≤ 0.05) reduced root growth in most of the accessions, there were ten accessions; MCSRP5, MCSR 124, MCSR106, ICSR110, Real60, IS41764, MCSR15, IESV93042-SW, MCSRM45 and MCSRM79f, that retained relatively high root growth and were classified as tolerant. The stress significantly (P ≤ 0.05) reduced seedling root and shoot dry matter in the Al-sensitive accessions. Plant growth and yield on un-limed soil was very poor, and liming increased grain yield by an average 35%. Most of Kenya sorghums were sensitive to Al stress, but a few tolerant accessions were identified that could be used for further breeding for improved grain yield in high aluminium soils.

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Section: Discussionmentioning

confidence: 71%

Response of selected sorghum (Sorghum bicolor L. Moench) germplasm to aluminium stress

Emily¹,

Beatrice²,

Augustino³

et al. 2014

Afr. J. Agric. Res.

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“…The rhizotoxicity of Al 3+ is the major limitation to plant production in acidic soils, a problem which is exacerbated by the use of ammonium fertilizers and acid rain (von Uexkull and Murtert 1995). Higher concentrations of Al 3+ were found in the soil solution at pH 3.7 than at pH 5.8 or 6.3 (Miller et al 2009).…”

Section: Aluminium Stressmentioning

confidence: 99%

“…Higher concentrations of Al 3+ were found in the soil solution at pH 3.7 than at pH 5.8 or 6.3 (Miller et al. ).…”

Section: Aluminium Stressmentioning

confidence: 99%

Response of Sorghum to Abiotic Stresses: A Review

Tari

Laskay

Takács

et al. 2012

J Agronomy Crop Science

140

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Sorghum [(Sorghum bicolor L.) Moench] is a highly productive crop plant, which can be used for alternative energy resource, human food, livestock feed or industrial purposes. The biomass of sorghum can be utilized as solid fuel via thermochemical routes or as a carbohydrate substrate via fermentation processes. The plant has a great adaptation potential to drought, high salinity and high temperature, which are important characteristics of genotypes growing in extreme environments. However, the climate change in the 21st century may bring about new challenges in the cultivated areas. In this review, we summarize the most recent literature about the responses of sorghum to the most important abiotic stresses: nutrient deficiency, aluminium stress, drought, high salinity, waterlogging or temperature stress the plants have to cope with during cultivation. The advanced molecular and system biological tools provide new opportunities for breeders to select stress-tolerant and high-yielding cultivars.

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“…Some organic and inorganic fertilizers also contain considerable amount of Al and Cr (Mc Grath 1995). Moreover, Cr and Al availability in soil increases markedly with the decrease of soil pH (Kochian 1995, Zeng et al 2008a, Miller et al 2009). In acidic soils, Al is a major constraint, posing a serious threat to crop production.…”

Section: Introductionmentioning

confidence: 98%

The effect of chromium and aluminum on growth, root morphology, photosynthetic parameters and transpiration of the two barley cultivars

Ali¹,

Zeng²,

Qiu³

et al. 2011

Biologia plant.

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The effect of aluminum and chromium on two barley genotypes differing in Al tolerance was studied in a hydroponic experiment. Al stress decreased plant growth, biomass production, chlorophyll content and photosynthetic efficiency determined as variable to maximum chlorophyll fluorescence ratio (F v /F m ), net photosynthetic rate (P N ), intercellular CO 2 concentration (c i ), stomatal conductance (g s ) and transpiration rate (E) less in an Al-tolerant genotype Gebeina than in an Al-sensitive genotype Shang 70-119. Cr stress also caused marked reduction in growth and photosynthetic traits in barley plants. Higher reduction was observed at pH 4.0 as compared to pH 6.5. Combined stress of Cr and Al, caused further reduction in growth and photosynthetic parameters.

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Sorghum growth, root responses, and soil‐solution aluminum and manganese on pH‐stratified sandy soil^§

Cited by 6 publications

References 35 publications

Response of selected sorghum (Sorghum bicolor L. Moench) germplasm to aluminium stress

Response of selected sorghum (Sorghum bicolor L. Moench) germplasm to aluminium stress

Response of Sorghum to Abiotic Stresses: A Review

The effect of chromium and aluminum on growth, root morphology, photosynthetic parameters and transpiration of the two barley cultivars

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Sorghum growth, root responses, and soil‐solution aluminum and manganese on pH‐stratified sandy soil§

Cited by 6 publications

References 35 publications

Response of selected sorghum (Sorghum bicolor L. Moench) germplasm to aluminium stress

Response of selected sorghum (Sorghum bicolor L. Moench) germplasm to aluminium stress

Response of Sorghum to Abiotic Stresses: A Review

The effect of chromium and aluminum on growth, root morphology, photosynthetic parameters and transpiration of the two barley cultivars

Contact Info

Product

Resources

About

Sorghum growth, root responses, and soil‐solution aluminum and manganese on pH‐stratified sandy soil^§