Phosphorus Analysis of Plant Material

Bertramson, B. R.

doi:10.1104/pp.17.3.447

Cited by 30 publications

(14 citation statements)

References 5 publications

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“…sucrose, glucose and fructose), starch, nitrogen (N) and phosphorus (P) concentrations (Agrolab Analítica SL). Soluble sugars and phosphorus were measured through calorimetric reaction and spectrometric analysis (Bertramson 1942, Green et al 1989). Nitrogen was analyzed following the Kjeldahl method (Nelson and Sommers 1973); and starch was determined by an enzymatic procedure and measured calorimetrically using a coupled glucose oxidase/peroxidase reaction and spectrometric analysis (Rasmussen and Henry 1990).…”

Section: Methodsmentioning

confidence: 99%

To resprout or not to resprout: factors driving intraspecific variability in resprouting

Moreira

Tormo

Pausas

2012

Oikos

106

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Resprouting is a mechanism that allows individual plants to persist in disturbance‐prone ecosystems. It is often considered a binary trait, defining species as resprouters or non‐resprouters. Although this dichotomous classification accounts for a high proportion of the interspecific variability in resprouting, it does not account for the intraspecific variability, as not all individuals of resprouting species successfully resprout, even if they are subject to a similar disturbance. To ascertain the causes of the intraspecific variability in resprouting we propose a conceptual model that disaggregates the process of resprouting into three sequential steps: initial ability to resprout, resprouting vigour and post‐resprouting survival. To test this model, we clipped 151 plants of three resprouting species (Anthyllis cytisoides, Globularia alypum and Linum suffruticosum) and, for each individual, we analysed the carbohydrate (starch and soluble sugars) and nutrient (N and P) concentrations in the roots at the moment of the disturbance (clipping all aboveground biomass). We then monitored initial ability to resprout, resprouting vigour and post‐resprouting survival in each individual during a one‐year period. Anthyllis showed high initial ability to resprout and high post‐resprouting survival. Globularia and Linum had low final resprouting success, mainly due to their low post‐resprouting survival, but also to the low initial ability to resprout in Linum. All three species showed variable resprouting vigour. Our results suggest that resprouting success is limited by different phases of the process of resprouting, depending on the species. Intraspecific variability in resprouting supported the importance of: a) the pre‐disturbance state of the plant (i.e. plant size and stored resources) on the initial ability to resprout and on the resprouting vigour, and b) the initial post‐disturbance capacity to acquire resources (i.e. resprouting vigour) on the post‐resprouting survival. The proposed three‐step model of resprouting provides a mechanistic description of the factors driving intraspecific variability in resprouting.

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Section: Methodsmentioning

confidence: 99%

To resprout or not to resprout: factors driving intraspecific variability in resprouting

Moreira

Tormo

Pausas

2012

Oikos

106

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“…Tissue P concentration analysis followed the vanadomolybdate yellow method (Bertramson, 1942, Jackson, 1958. Tissue P concentration analysis followed the vanadomolybdate yellow method (Bertramson, 1942, Jackson, 1958.…”

Section: Plant Measurements and Analysesmentioning

confidence: 99%

Screening maize inbred lines for tolerance to low-P stress condition

Silva

Gabelman

1992

Plant Soil

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Genotype screening and selection for tolerance to low-phosphorus stress conditions is an important strategy for the development of cultivars growing on soils low in available P. This study was conducted to adjust an existing screening methodology which provides stable, diffusion-limited low-P concentrations for use with maize, and then use the modified methodology to select maize inbreds tolerant to low-P stress during the vegetative stage of development. Low and high-P concentration levels were established that provided a reproducible and diffusion-controlled availability of P to the plants at concentrations of 8-10 IxM and 40-50 IxM, respectively, of culture medium solution P at the time of transplanting. The procedure was also effective in providing low concentrations of P during the period of plant growth. The sand-alumina culture medium was used to screen 20 maize inbreds known to be efficient in P uptake or accumulation and/or tolerant to aluminum toxicity. The inbreds B37, Oh40B, NY821, Pa36, and MS1334 were selected as tolerant to low-P and WH, H99, H84, Pa32, and W37A were selected as intolerant to low-P in sand-alumina medium.

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“…Nitrogen was determined using the micro-kjeldahl method [7] and phosphorus was determined colorimetrically using a modified method described by Bertramson [3] . The potassium and oil contents in seed were analysed flame photometrically [9] and by the Soxhlet method [161, respectively .…”

Section: Methodsmentioning

confidence: 99%

Effect of nitrogen and chlormequat chloride on the seed yield and oil content of mustard (Brassica juncea L. Czern & Coss)

Prasad

Shukla

1991

Plant Growth Regul

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The growth of mustard was increased significantly when treated with up to 80 kg N ha -'(N 80 ) . Spraying with (2-chloroethyl) trimethylammoniumchloride (chlormequat chloride) increased seed yield and seed protein content. Spraying nitrogen fertilized plots with chlormequat chloride, increased leaf area, leaf area ratio, leaf area duration, number of siliquae plant -', number of seeds siliqua -' and length of siliqua . Reducing, non-reducing and total sugars in the leaves at 80 days after sowing were also affected significantly . Chlorophyll 'a', 'b' and total chlorophyll were little affected . The number of siliquae plant -' was highly correlated with seed yield in both the seasons of experimentation . The correlation coefficient value (y) was 0 .586 in 1982/83 and 0 .912 in 1983/84 . The total accumulation of nutrients, i .e . nitrogen, phosphorus and potassium in seed and straw was significantly affected by N80 x chlormequat chloride interaction .

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Phosphorus Analysis of Plant Material

Cited by 30 publications

References 5 publications

To resprout or not to resprout: factors driving intraspecific variability in resprouting

To resprout or not to resprout: factors driving intraspecific variability in resprouting

Screening maize inbred lines for tolerance to low-P stress condition

Effect of nitrogen and chlormequat chloride on the seed yield and oil content of mustard (Brassica juncea L. Czern & Coss)

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