Heritability of, and relationships between phosphorus and nitrogen concentration in shoot, stolon and root of white clover (Trifolium repens L.)

Caradus, J. R.

doi:10.1007/bf00012014

Cited by 7 publications

(1 citation statement)

References 20 publications

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“…This shows that a moderately severe P stress was imposed . In agreement with other researchers we found that root growth was much less inhibited by P-stress than shoot growth (Caradus, 1992 ;Fageria et al ., 1988 ;Fredeen et al ., 1988: Lynch et al ., 1991 and root growth branching patterns appeared to be altered by plant P status . This was indicated by changes in dry weight allocation to fine versus thick roots ( Table 2) .…”

Section: Discussionsupporting

confidence: 82%

Exploitation of localized phosphorus-patches by common bean roots

Snapp

Lynch

1995

Plant Soil

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Phosphorus (P) uptake from patches was investigated in high-P and low-P common bean (Phaseolus vulgaris L.) plants using a split-root system . A P-patch was developed by exposing a small sub-section of the root system to localized P enrichment . A soil-based media was used to provide realistically low, buffered levels of P In addition, nutrient solution provided zero and 1 mM P to low-P and high-P plants, respectively . Overall, growth of low-P plants was approximately 40% that of high-P plants . Mycorrhizal infection by G . etunicatum had little detectable influence on plant growth . Root length exploring a P-patch was comparable for low-P and high-P plants, yet low-P plants allocated half as much root biomass and P to a P-patch compared to high-P plants . This was achieved by an increase in the investment in fine, terminal roots exploring a P-patch in low-P plants . P uptake per investment of dry weight in the P-patch was over 50% higher for high-P plants compared to low-P plants . The higher P-uptake efficiency in high-P plants was achieved despite the greater production of fine roots in low-P plants .

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Section: Discussionsupporting

confidence: 82%

Exploitation of localized phosphorus-patches by common bean roots

Snapp

Lynch

1995

Plant Soil

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Turnabout is fair play: Secondary roles for primary compounds

1995

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Chemically based resistance of plants to herbivorous insects is today essentially synonymous with allelochemically based resistance; the importance of plant secondary compounds in determining patterns of host-plant utilization has been established in a wide variety of insect-plant interactions. In contrast, primary metabolites, those involved in fundamental plant physiological processes, are rarely considered to be major determinants of host-plant resistance despite the fact that, as insect nutrients, they can have profound effects on behavior and physiology. The degree to which variation in plant primary metabolism results from the selective impact of herbivory may be greatly underestimated in that the biosynthetic and structural diversity of primary metabolites and the consequences of that diversity on herbivores are rarely taken into account in most studies of insect preference and performance. Qualitative and quantitative variation in the production of primary metabolites can result from herbivore selection pressure if production of primary metabolites is under genetic control and if plant fitness in the presence of herbivores is associated in a predictable way with genetically based primary metabolite variation. Variation in primary metabolism is likely to be particularly effective as a defense against highly oligophagous herbivores with limited mobility, especially those confined to structures containing allelochemicals that could neutralize the benefits associated with compensatory feeding.

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Genetic gain from selection and potential for improving alfalfa phosphorus uptake and removal from soils heavily amended with poultry litter

Missaoui

Young

2016

Euphytica

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Heritability of, and relationships between phosphorus and nitrogen concentration in shoot, stolon and root of white clover (Trifolium repens L.)

Cited by 7 publications

References 20 publications

Exploitation of localized phosphorus-patches by common bean roots

Exploitation of localized phosphorus-patches by common bean roots

Turnabout is fair play: Secondary roles for primary compounds

Genetic gain from selection and potential for improving alfalfa phosphorus uptake and removal from soils heavily amended with poultry litter

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