Effect of different aluminium and phosphorus levels on aluminium-tolerant and aluminium-susceptible genotypes of white clover (<i>Trifolium repens</i>L.)

Crush, J. R.; Caradus, J. R.

doi:10.1080/00288233.1993.10427490

Cited by 6 publications

(1 citation statement)

References 30 publications

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“…In contrast to these results, MacKay et al (1991) found Lotus pedunculatus was as sensitive to A1 as Trifolium repens, T. pratense and L. corniculatus. Crush and Caradus (1993) reported that the differentiation between A1tolerant and Al-sensitive genotypes of white clover increased as the P rate increased. However, in this study the plant P status was adequate (Table 4) whereas MacKay et al (1991) used a soil with low P status.…”

Section: Discussionmentioning

confidence: 99%

Effect of aluminium on yield and plant chemical concentrations of some temperate legumes

Wheeler

Dodd

1995

Plant Soil

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The aluminium (A1) tolerance of 34 temperate legume species (143 genotypes, including 57 from Trifolium repens) was determined in 60 experiments over a 3 year period in a low ionic strength (2.7 × 10 -3 M) solution culture. For each genotype, the relationship between solution A13+ activity (#M) and relative yield was determined and the A13+ activity associated with a 50% reduction in yield (AIRYsO) calculated. In addition, plant chemical concentrations were determined in at least one genotype from most species. For white clover, A1RYS0 over all genotypes had an approximately normal distribution with mean of 1.31/tM for the tops and 1.51 #M for the roots, and a standard deviation of about 0.4. This suggested that A1 tolerance had a polygenic inheritance. For the other species tested, A1RYS0 ranged from 0.15 to 4.53 pM in the tops and from 0.21 to 4.89/aM in the roots. In the tops and roots, 37% and 26% respectively of the genotypes had an AIRy5o less than 1 #M, including all species tested in the genera Melilotus and Medicago. Only 8% or 23% of the genotypes, based on the tops and roots respectively, had an AIRys0 greater than 2, including all genotypes in the species Lotus pedunculatus. Except for Lotus, there were no consistent differences between genera in plant chemical concentrations. In Lotus, concentrations of Ca, Zn, Mn and Cu in the tops and of all elements except B in the roots were lower than that of the other species. The A1RYS0 of the species was not related to plant chemical concentrations in the absence of A1. Depending on the plant element, increasing solution A1 concentrations had no significant effect on plant chemical concentrations for 56-94% of the species. When a significant effect did occur, increasing A1 in solution generally decreased S and K concentrations and increased Mn, Zn, Cu Fe, B and AI concentrations in the tops and roots and decreased Ca concentrations in the tops. Plant P concentrations decreased in the tops but increased in the roots. Increasing A1 in solution increase plant A1 at the average rate of 44 pg g-1 pM-1 (range 20-87) in the tops and 333/zg #M-1 (range 162-616) in the roots.

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Section: Discussionmentioning

confidence: 99%

Effect of aluminium on yield and plant chemical concentrations of some temperate legumes

Wheeler

Dodd

1995

Plant Soil

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Effect of aluminium, and selection for aluminium tolerance, on root hair length in white clover

Care¹

1998

Root Demographics and Their Efficiencies in Sustainable Agriculture, Grasslands and Forest Ecosystems

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Ecology of herbaceous perennial legumes: a review of characteristics that may provide management options for the control of salinity and waterlogging in dryland cropping systems

Cocks

2001

Aust. J. Agric. Res.

108

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Salinity is a widespread problem caused by an imbalance between rainfall and transpiration in the dryland cropping systems of southern Australia. The need to use more perennials has been identified and this paper examines the possibility of replacing annual with perennial pasture legumes and the germplasm available to do so. While lucerne is already used widely in eastern Australia it has only recently been adopted in the wheat belt of Western Australia. There are doubts about its adaptation to acid soils and to climates where summer rainfall is low and ambient temperatures are high. There is also a need to diversify the species available to reduce the likelihood of invasion by exotic diseases and insects. Several genera are likely to be of value in this respect, although few will be as widely adapted as lucerne. Perennial legumes are found in environments ranging from alpine to desert. Targeted collections of genera from the dry areas, especially where soils are acid, are likely to yield species of value. These may include perennial species of Astragalus, Hedysarum, Lotus, Onobrychis, Psoralea, and Trifolium. Some Australian genera, for example Swainsona, Glycine, and Cullen may also be of value. Most of these genera are from alkaline soils, and the need to cope with acid soils that are often high in free aluminium is seen to limit their use in southern Australia. However, since virtually nothing is known of the ecology and ecophysiology of species from the dry areas, it is possible that through selection and the use of adapted rhizobia, some at least may be of value in Australian conditions. Cropping in rotation with perennial legumes is likely to involve several changes in farming systems. It is impossible to predict their nature but it is essential that we understand what these changes are before the species are widely introduced. Account must also be taken of their ability to use water. It is entirely possible that perennials from dry areas are dormant in summer despite the fact that there is no evidence in the literature to this effect. It was concluded that although lucerne is suitable for phase farming, alternatives to lucerne are needed. They will have to match the water-using and nitrogen-fixing capacities of lucerne, and farming systems will be required that make full use of the new germplasm. Collaboration with institutions in the Mediterranean basin and elsewhere is needed and a beginning has been made in this direction.

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Effect of different aluminium and phosphorus levels on aluminium-tolerant and aluminium-susceptible genotypes of white clover (Trifolium repensL.)

Cited by 6 publications

References 30 publications

Effect of aluminium on yield and plant chemical concentrations of some temperate legumes

Effect of aluminium on yield and plant chemical concentrations of some temperate legumes

Effect of aluminium, and selection for aluminium tolerance, on root hair length in white clover

Ecology of herbaceous perennial legumes: a review of characteristics that may provide management options for the control of salinity and waterlogging in dryland cropping systems

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