Plant soil interactions at low pH problem solving ‐ the genetic approach

Little, R.

doi:10.1080/00103628809368009

Cited by 37 publications

(20 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dual-phase procedures discussed in the preceding section represent important departures from other selection methods currently in use (see Little, 1988;Howeler, 1991). The success of proposals dealing with new selection criteria will, however, ultimately depend on the practical advantages they can offer over existing procedures.…”

Section: Prognosismentioning

confidence: 99%

“…It is, in consequence, necessary to consider the hypothesis that in some cases the hematoxylin test may lead to an improvement in AI tolerance without necessarily affecting root growth . Conversely, the widespread use of root growth measurements in selecting for Al tolerance (see Little, 1988;Howeler, 1991) may inadvertently be improving rooting characteristics without increasing the Al tolerance of the plant.…”

Section: Screening Tests For Aluminium Tolerancementioning

confidence: 99%

See 1 more Smart Citation

The use of hematoxylin in screening perennial ryegrass (Lolium perenne) for aluminium tolerance

Bennet¹

1995

South African Journal of Plant and Soil

View full text Add to dashboard Cite

Section: Prognosismentioning

confidence: 99%

Section: Screening Tests For Aluminium Tolerancementioning

confidence: 99%

The use of hematoxylin in screening perennial ryegrass (Lolium perenne) for aluminium tolerance

Bennet¹

1995

South African Journal of Plant and Soil

View full text Add to dashboard Cite

“…A long exposure to Al for 3~4 weeks requires much lower (about one third) concentrations than brief exposure of 24 h. Shuman et al(1993) found effective screening of wheat cultivars using Other variables to consider in solution-based screening are nutrient composition and standards for measuring tolerance. Changes in nutrient composition can change the intensity of Al stress at a given concentration Little, 1988;Scott and Fisher, 1989). Higher concentration of phosphorus may lead to Al-phosphate precipitates in Al solution and protect plants against Al toxicity.…”

Section: Nutrient Solution Culturementioning

confidence: 99%

Aluminium tolerance in barley (Hordeum vulgare L.): Physiological mechanisms, genetics and screening methods

Wang

Raman

Zhang

et al. 2006

J. Zhejiang Univ. - Sci. B

116

View full text Add to dashboard Cite

Aluminium (Al) toxicity is one of the major limiting factors for barley production on acid soils. It inhibits root cell division and elongation, thus reducing water and nutrient uptake, consequently resulting in poor plant growth and yield. Plants tolerate Al either through external resistance mechanisms, by which Al is excluded from plant tissues or internal tolerance mechanisms, conferring the ability of plants to tolerate Al ion in the plant symplasm where Al that has permeated the plasmalemma is sequestered or converted into an innocuous form. Barley is considered to be most sensitive to Al toxicity among cereal species. Al tolerance in barley has been assessed by several methods, such as nutrient solution culture, soil bioassay and field screening. Genetic and molecular mapping research has shown that Al tolerance in barley is controlled by a single locus which is located on chromosome 4H. Molecular markers linked with Al tolerance loci have been identified and validated in a range of diverse populations. This paper reviews the (1) screening methods for evaluating Al tolerance, (2) genetics and (3) mechanisms underlying Al tolerance in barley.

show abstract

“…Roots that are stunted by Al toxicity are inefficient in absorbing both nutrients and water (Mossor-Pietraszewska 2001). Al-resistant plants may be more drought tolerant and require lower inputs of lime and P fertilizer than less resistant genotypes (Little 1988). Yang et al (2010) characterized the combined Al toxicity and drought stress on root growth, with special emphasis on Al/drought interaction in the root apex of common bean.…”

Section: Introductionmentioning

confidence: 99%

New genetic sources of resistance in the genus Phaseolus to individual and combined aluminium toxicity and progressive soil drying stresses

et al. 2011

View full text Add to dashboard Cite

Bean species and genotypes show wide phenotypic variability in relation to aluminium (Al) resistance and progressive soil drying. The objective of this study was to identify and characterize sources of resistance to Al toxicity and progressive soil drying among six genotypes of common bean (Phaseolus vulgaris), four of runner bean (P. coccineus), and one of tepary bean (P. acutifolius), using hydroponic and soil cylinder screening methods. One experiment on hydroponic screening of Al resistance was carried out using a basal nutrient solution with and without 20 lM Al. Two experiments were carried out using two oxisols in 80 cm long soil cylinders with high Al (HAl) and low Al (LAl) saturation treatments. The three experiments showed an average of 36.9-53.5% inhibition of root growth with HAl compared with LAl treatments. Differences in root development and distribution were observed among genotypes and species. Two accessions of P. coccineus (G35346-2Q, G35464-5Q) and one Andean common bean genotype (ICA Quimbaya) were outstanding in root and shoot growth in the HAl treatments. P. coccineus accession (G35346-3Q) was outstanding under combined stress of Al-toxic acid soil and progressive soil drying. Accessions of P. coccineus may represent unique sources of Al resistance for the improvement of common bean through interspecific crosses.

show abstract

Plant soil interactions at low pH problem solving ‐ the genetic approach

Cited by 37 publications

References 16 publications

The use of hematoxylin in screening perennial ryegrass (Lolium perenne) for aluminium tolerance

The use of hematoxylin in screening perennial ryegrass (Lolium perenne) for aluminium tolerance

Aluminium tolerance in barley (Hordeum vulgare L.): Physiological mechanisms, genetics and screening methods

New genetic sources of resistance in the genus Phaseolus to individual and combined aluminium toxicity and progressive soil drying stresses

Contact Info

Product

Resources

About