The mineral composition of lupins. 2. A comparison of the copper, manganese, molybdenum, and cobalt contents of lupins and other species at the one site

1962 ◽  
Vol 2 (7) ◽  
pp. 213 ◽  
Author(s):  
JS Gladstones
Keyword(s):  
Manganese Content ◽  
Subterranean Clover ◽  
Response To Treatment ◽  
Mineral Contents ◽  
Minimum Requirement ◽  
Plant Groups ◽  
Gravel Soil ◽  
The One ◽  
Whole Plants ◽  
Erodium Botrys

In a field experiment on an ironstone gravel soil, six lupin varieties from four lupin species were compared with oats, Wimmera ryegrass, Erodium botrys, and three varieties of subterranean clover in their copper contents at four rates of copper application. Manganese, molybdenum and cobalt contents of bulked variety samples were also determined. At rates of up to 20 lb copper sulphate per acre, only subterranean clover and Erodium botrys showed appreciable response in terms of higher copper concentrations in the plants. Lupins had moderate to high contents, but showed little or no response to treatment. Oats and Wimmeya ryegrass maintained very low contents at all rates of application. Among the lupins, the order of copper concentrations in the whole plants, over all treatments, was L. digitatus > L. luteus > L. angustifolius > L. albns. Within L. luteus, the bitter strain wed had a higher mean copper content than the sweet Weiko III variety. Differences were also demonstrated among subterranean clover varieties, Yarloop being higher than Dwalganup or Mt. Barker over all treatments. Subterranean clover had the lowest molybdenum content. Lupins were very substantially higher in manganese than all other species. The particularly high manganese content of L. albus, especially in the seeds, was confirmed. Cobalt levels varied little between species, and were well below the minimum requirement of grazing ruminants. I t was concluded that generalizations as to the relative mineral contents of broad plant groups must be treated with caution when applied to particular species or varieties.

scholarly journals Time for a shift in focus in schizophrenia: From narrow phenotypes to broad endophenotypes

2005 ◽  
Vol 187 (3) ◽  
pp. 203-205 ◽  
Author(s):  
Mark Weiser ◽  
Jim van Os ◽  
Michael Davidson
Keyword(s):  
Risk Factors ◽  
Mental Illness ◽  
Genetic Factors ◽  
The Other ◽  
Social Impairment ◽  
Response To Treatment ◽  
Social Impairments ◽  
Biological Explanation ◽  
Biological Substrate ◽  
The One

SummaryMany manifestations of mental illness, risk factors, course and even response to treatment are shared by several diagnostic groups. For example, cognitive and social impairments are present to some degree in most DSM and ICD diagnostic groups. The idea that diagnostic boundaries of mental illness, including schizophrenia, have to be redefined is reinforced by recent findings indicating that on the one hand multiple genetic factors, each exerting a small effect, come together to manifest as schizophrenia, and on the other hand, depending on interaction with the environment, the same genetic variations can present as diverse clinical phenotypes. Rather than attempting to find a unitary biological explanation for a DSM construct of schizophrenia, it would be reasonable to deconstruct it into the most basic manifestations, some of which are common with other DSM constructs, such as cognitive or social impairment, and then investigate the biological substrate of these manifestations.

scholarly journals Congenital goitre in sheep in southern Tasmania

1975 ◽  
Vol 26 (4) ◽  
pp. 751 ◽  
Author(s):  
M Statham ◽  
AC Bray
Keyword(s):  
Drinking Water ◽  
Soil Type ◽  
Clay Soil ◽  
Subterranean Clover ◽  
Moisture Stress ◽  
Iodine Intake ◽  
Minimum Level ◽  
Soil Ingestion ◽  
The One ◽  
Animal House

Congenital goitre was first recorded in Tasmanian sheep In 1945. Severe but sporadic outbreaks have since occurred in 1956, 1964 and 1968. The disease seemed to be associated with particular farms and its incidence often differed markedly between ewe flocks on the one farm. A survey indicated that the condition was mainly confined to the Derwent Valley and the northern Midlands. Studies involved a grazing trial near Bothwell, where goitre was endemic, and included supporting animal house tnals and plant growth studies. Soil type was shown to be a major factor in the disease: ewes grazing pasture on a sandy soil produced many more goitrous lambs than ewes grazing pasture on clay soil. Analyses of the two pastures revealed that those on sandy so11 contained less iodine than those on clay soil but neither contained the minimum level necessary to prevent goitre. Observations revealed that outbreaks of the disease followed wet autumns with subsequent lush pasture during pregnancy. This correlation could be explained if pasture grown under moist conditions contained less iodine than pasture grown under moisture stress. However, experiments with the two main pasture species (perennial ryegrass and subterranean clover) showed that plant iodine levels were not affected by the water supply. Two goitrogenic agents, nitrate and thiocyanate, were present in the pastures, but they were not considered to be Important in the aetiology of the disease. Similarly, the drinking water was found to be unimportant, even though the two sources available contained widely different amounts of iodine. Apparently, between-year variation in the incidence of goitre and the effect of soil type can best be explained by a varying iodine intake dependent on soil ingestion which varies with pasture availability. This hypothesis is discussed in the light of the results.

Control of Amsinckia spp. by the pastures of north-western Victoria

1965 ◽  
Vol 5 (19) ◽  
pp. 500
Author(s):  
DJ Connor
Keyword(s):  
Seed Production ◽  
Subterranean Clover ◽  
Barrel Medic ◽  
Limited Application ◽  
One Year ◽  
The One ◽  
Western Victoria ◽  
Establishment Phase ◽  
North Western ◽  
Very High

Amsinckia is a serious weed in the wheat growing areas of north-western Victoria. It is successful in the inter-crop pastures, based upon barrel medic, because it grows faster than barrel medic in the cooler months of May to August. In addition, the rapid growth in height associated with the change from rosette to elongating phases ensures a height advantage over the pasture species when the flush of pasture growth does commence. Seed production by each Amsinckia plant is very high, and for this reason any competitive restriction obtained in one year is not necessarily reflected in the establishment phase of the next. Subterranean clover c.v. Clare is more competitive than barrel medic and was able to eliminate Amsinckia from the sward in two years. However it has only limited application in the pastures of north-western Victoria. A mowing treatment was carried out at the commencement of Amsinckia flowering, for this coincides with the beginning of rapid pasture growth. Regrowth produced a reversal of height relationships within the pasture and enabled barrel medic to shade Amsinckia BJ this treatment growth and seed production of Amsinckia were reduced by 99 per cent within the one season.

Manganese deficiency in subterranean clover (Trifolium subterraneum L.)

1954 ◽  
Vol 5 (4) ◽  
pp. 608 ◽  
Author(s):  
AG Tyson
Keyword(s):  
Dry Matter ◽  
Acid Soil ◽  
Manganese Content ◽  
Subterranean Clover ◽  
Trifolium Subterraneum ◽  
Fold Increase ◽  
Manganese Deficiency ◽  
Flowering Stage ◽  
Healthy Growth ◽  
Matter Basis

Manganese deficiency of subterranean clover (Trifolium subterraneum L.) appeared in pots of a Kangaroo Island soil, the pH of which had been changed by the addition of small amounts of lime from 6.2 (the natural pH) to 6.3-6.5. As a result of this deficiency, yields were severely depressed. The symptoms of manganese deficiency in subterranean clover are described. Chemical analyses of healthy plants showed manganese contents, expressed on a dry matter basis, varying from 30 p.p.m. on a slightly acid soil to over 300 p.p.m. on a strongly acid soil. Plants in various stages of manganese deficiency showed only 4-25 p.p.m. It is suggested that, at the flowering stage, 25 parts of manganese per million parts of dry matter represents the minimum amount of manganese for healthy growth of subterranean clover. Applications of manganese sulphate to the soil at a rate of 56 lb/acre prevented the appearance of manganese deficiency symptoms, increased the manganese content of the clover to 35 p.p.m., and led to nearly a 20-fold increase in growth. Manganese deficiency in subterranean clover has also been seen in the field on Kangaroo Island and one sample examined showed only 9.4 p.p.m. of manganese on a dry matter basis.

Effects of phosphorus and sulphur on dark respiration of subterranean clover leaves

1971 ◽  
Vol 22 (5) ◽  
pp. 723 ◽  
Author(s):  
D Bouma
Keyword(s):  
Dark Respiration ◽  
Subterranean Clover ◽  
Trifolium Subterraneum ◽  
The Other ◽  
Phosphorus Level ◽  
Respiration Rates ◽  
Phosphorus Status ◽  
Whole Plants ◽  
Complete Solutions ◽  
Phosphorus Levels

Respiration rates in the dark (oxygen uptake) of leaves sampled from subterranean clover plants (Trifolium subterraneum L. cv. Mt Barker) increased with the phosphorus supply in the culture solutions in which the plants were grown. Over a period of 3 hr no differences were detected in respiration rates when leaves of these plants were placed in Warburg flasks containing complete solutions or solutions without phosphorus. However, when whole plants were transferred to complete and no-phosphorus solutions, the differences in respiration rates of leaves sampled from the two groups of plants depended on the phosphorus status of the plants at transfer. Leaves from plants raised at an adequate phosphorus level showed no differences over a period of 96 hr after transfer, but leaves from plants raised at suboptimal phosphorus levels before transfer to complete and no-phosphorus solutions showed significant differences in respiration rates as early as 18-19 hr after transfer. Similar results were obtained for leaves sampled from plants raised at different sulphur levels when transferred to complete solutions and to solutions without sulphur. However, these differences took longer to develop than in the phosphorus experiments. When phosphorus-deficient plants were transferred to complete solutions and to other solutions each without a different element, the respiration rates of the leaves sampled from the plants in the solutions without phosphorus were much lower than for the leaves of plants in the other solutions.

The effect of intensity of rotational grazing with breeding ewes on phalaris-subterranean clover pastures

1969 ◽  
Vol 9 (36) ◽  
pp. 74 ◽  
Author(s):  
FHW Morley ◽  
D Bennett ◽  
GT McKinney
Keyword(s):  
Subterranean Clover ◽  
Animal Production ◽  
Supplementary Feeding ◽  
Rotational Grazing ◽  
Moderate Amount ◽  
The One

Animal production and pasture amount and composition are presented from an experiment at Canberra in which one-, three-, and nine- subdivisions were rotationally grazed throughout the year in 1963, from December to September 1964, and from March to September in 1965, 1966, and 1967, at 20, 25, or 30 Merino ewes per hectare for three years, and at 17 ewes per hectare for a further two years. Intense subdivision resulted in pastures in which perennials, rather than the annual components, predominated. Moderate subdivision produced a pasture in which both perennials and annuals contributed substantially. Under a one-paddock (set stocked) system the annuals yielded more in spring than did perennials. Intensive subdivision favoured winter production, but resulted in less growth from pastures during spring, less dry feed in summer, and hence an increased need for supplementary feeding in years with dry autumns. The three-paddock system resulted in more winter production than the one-paddock, and about the same production in spring. Intensity of subdivision had little effect on animal production, except in increased frequency of deaths from Phalaris poisoning, some reduction in pre-lambing mortality, and increased requirement for supplementary feeding for survival. These results indicate that intensive subdivision of such pastures is unlikely to be worthwhile in environments such as that at Canberra. A moderate amount of subdivision as exemplified in a three paddock rotation, may give worthwhile increases in winter production, without the penalty of decreased spring growth.

A prospective study tracking longitudinal changes in genome-wide cell-free DNA (cfDNA) methylation to identify early nonresponders to cancer treatment.

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 3042-3042
Author(s):  
Andrew A. Davis ◽  
Wade Thomas Iams ◽  
David Chan ◽  
Michael S Oh ◽  
Robert William Lentz ◽  
...  
Keyword(s):  
Predictive Value ◽  
Epigenetic Modification ◽  
Progression Free Survival ◽  
Response To Treatment ◽  
Treatment Regimens ◽  
Cancer Pathogenesis ◽  
Before And After ◽  
The One ◽  
A Prospective Study

3042 Background: Methylation is an epigenetic modification linked to cancer pathogenesis. The aim was to determine if changes in cfDNA methylation patterns before and after initiation of treatment could predict non-response to treatment prior to routine imaging and clinical follow-up. Methods: We prospectively collected clinical data and blood from 28 patients with metastatic malignancies (13 lung, 11 breast, 4 other). Blood was drawn prior to start of a new treatment, after first cycle (median 30 days), and/or second cycle (median 57 days). We performed whole-genome (WG) bisulfite sequencing (median depth 18X) on plasma cfDNA to determine methylation levels. By tracking how methylation levels deviate from unaffected individuals, from baseline to subsequent timepoints, we classified patients as either progressors (greater deviance) or non-progressors. Treatment response at first follow-up imaging (FUI) was determined by RECIST 1.1. Study endpoints were agreement with first FUI and progression-free survival (PFS) by cfDNA classification. Results: The cohort consisted of 68% females and the median age was 70. Main treatment regimens were chemo- (N = 12), immuno- (6), endocrine (5), or targeted-therapy (5). PFS was significantly shorter (log-rank p = 8 x 10-7) in patients classified as progressors by cfDNA (N = 8; median: 62 days) compared to non-progressors (N = 20, median: 263 days). For patients classified as progressors, the cfDNA assay preceded imaging and clinical evaluation by a median of 34 days. 7 out of 8 patients classified as cfDNA progressors were later confirmed to progress at first follow-up evaluation (88% positive predictive value). The one patient who was classified as progressor based on cfDNA was stable based on FUI (day 93 of treatment) but was later confirmed as progression on day 128 by FUI. For the remaining patients, 18 of 20 did not progress (90% negative predictive value). Thus, sensitivity for the assay for identifying progression was 78% and specificity was 95%. Conclusions: Our results show that WG cfDNA methylation change is a novel signature with potential to identify patients whose treatment regimen is ineffective prior to imaging.

VisTHAA

2016 ◽  
pp. 151-177
Author(s):  
Laura Cruz-Reyes ◽  
Mercedes Pérez Villafuerte ◽  
Marcela Quiroz-Castellanos ◽  
Claudia Gómez ◽  
Nelson Rangel Valdez ◽  
...  
Keyword(s):  
Design Theory ◽  
Bin Packing ◽  
Heuristic Algorithms ◽  
Statistical Tests ◽  
Packing Problem ◽  
Point Of View ◽  
Minimum Requirement ◽  
The One ◽  
Standard Sets ◽  
Non Parametric

In this chapter, a scientific tool designed to facilitate fair comparisons of heuristics is introduced. Making a fair comparison of the performance of different algorithms is a general problem for the heuristic community. Most of the works on experimental analysis of heuristic algorithms have been focused on tabular comparisons of experimental results over standard sets of benchmark instances. However, from a statistical point of view, and according to the experimental design theory, a minimum requirement to compare heuristic algorithms is the use of non-parametric tests. Non-parametric tests can be used for comparing algorithms whose results represent average values, in spite of the inexistence of relationships between them, and explicit conditions of normality, among others. The proposed tool, referred to as VisTHAA, incorporates four non-parametric statistical tests to facilitate the comparative analysis of heuristics. As a case study, VisTHAA is applied to analyze the published results for the best state-of-the-art algorithms that solve the one-dimensional Bin Packing Problem.

Plant growth with nutrient solutions. IV. The influence of culture solutions of varying phosphate content on the growth of the turnip in fen and gravel soil.

1947 ◽  
Vol 37 (3) ◽  
pp. 163-198 ◽  
Author(s):  
Rowland Marcus Woodman ◽  
Delphine Ainslie Johnson
Keyword(s):  
Dry Matter ◽  
Soluble Phosphate ◽  
Optimum Range ◽  
Low Concentration ◽  
Whole Plant ◽  
Gravel Soil ◽  
Soluble Phosphorus ◽  
Effect On Yield ◽  
Whole Plants ◽  
Available Phosphate

Statistical experiments were made to ascertain the effect of variations in applied soluble phosphate on the growth of Milan Strap-leaved Purple Top Turnips in a light gravel soil already containing sufficient available phosphate, and in a fen soil possessing an inadequate supply of available phosphate, as aggregates for growth.No adverse effect on yield, calculated as fresh or dry matter of tops, roots, or whole plants, was suffered in either soil at any of the stages of growth considered at the highest concentrations of soluble phosphate, unlike the behaviour of this turnip when grown in a pure sand containing no clays or humates, where there was a narrow optimum range of phosphorus at a low concentration. The gravel soil occupied an intermediate position, however, between sand with its low optimum range of soluble phosphorus, and fen soil, where positive response to increasing concentrations of soluble phosphorus approached the ‘normal’, and thus there was a range of phosphorus at low concentration tending to a maximum yield followed generally by a greater numerical yield at the highest concentrations of phosphorus.At the seedling stage in gravel soil variation in applied phosphate had absolutely no statistical effect on yield, moisture content of tops, roots and whole plants, and the ratios, for fresh or dry matter, Top/Root, Root/(Whole plant) and (Whole plant)/ Top.

Emergence response of subterranean clover to dissolved gypsum in relation to soil properties and evaporative conditions

Soil Research ◽  
1966 ◽  
Vol 4 (1) ◽  
pp. 55 ◽  
Author(s):  
J Loveday ◽  
DR Scotter
Keyword(s):  
Soil Properties ◽  
Surface Soil ◽  
Subterranean Clover ◽  
Clay Content ◽  
Exchangeable Sodium ◽  
Loam Soil ◽  
Highly Correlated ◽  
The One ◽  
Relationship Of ◽  
Emergence Response

Using small plots set in the earthen floor of an open glasshouse, the emergence response of subterranean clover to dissolved gypsum has been determined on 10 soils covering a range of clay and exchangeable sodium levels. The response on a loam soil of low exchangeable sodium percentage (E.S.P.) has been examined at three times of differing evaporative potential. For loams and clay loams, the appearance of a response depends on the severity of evaporative conditions as well as on the E.S.P. On clay soils not naturally self mulching, some response is probably always obtained but, in general, the higher the clay content and the higher the E.S.P. and evaporative potential, the more likely is an emergence response to dissolved gypsum. Emergence was found to be highly correlated with the matric potential of the surface 1/2 in. at the time emergence began. From a consideration of the relationships between emergence and moisture status, the most significant effect of the gypsum treatment seems to be the delay of several days it causes in the air drying of the surface soil, probably because of improved transmission of moisture from beneath. Parallel effects on surface soil temperature to those on moisture can be explained in terms of differences in amount of evaporative cooling. Relationships found between emergence and emergence response to gypsum on the one hand and clay content and E.S.P. on the other are presumably a reflection of the relationship of these soil properties to porosity and moisture transmission.

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