Establishing the relationship of ascospore loads with blackleg (Leptosphaeria maculans) severity on canola (Brassica napus)

2004 ◽  
Vol 55 (8) ◽  
pp. 849 ◽  
Author(s):  
A. D. Wherrett ◽  
K. Sivasithamparam ◽  
M. J. Barbetti
Keyword(s):  
Brassica Napus ◽  
Crop Residues ◽  
Leptosphaeria Maculans ◽  
Disease Index ◽  
Adult Plant ◽  
Exponential Relationship ◽  
Glufosinate Ammonium ◽  
Highly Correlated ◽  
Relationship Of ◽  
The Relationship

A study was carried out to determine the relationship of blackleg (Leptosphaeria maculans) to ascospore loads from infested canola residue, and also to determine whether effects of chemicals on L. maculans development and ascospore discharge from residues would be reflected in subsequent disease on a freshly sown crop. Residues were dipped in a water-only control or solutions of flutriafol or glufosinate-ammonium and placed in the field prior to early winter rains where they remained through the growing season. Canola (Brassica napus cv. Dunkeld) was seeded adjacent to residues. Early seedling lesion and adult plant crown canker development were monitored. A significant exponential relationship between numbers of ascospores discharged from residues and seedling percentage disease index (SPDI; range 0–100%) and adult plant percentage disease index (APDI; range 0–100%) was evident. In particular, large variations in SPDI and APDI were evident in relation to changes in level of inoculum where less than 25 × 105 ascospores/stem (approx.) were discharged. A reduction in ascospore numbers discharged from 25 × 105 ascospores/stem to 5 × 105 ascospores/stem resulted in a significant reduction of SPDI and APDI. Above this ascospore/stem threshold, responses to inoculum increases were minimal, with relatively little further increase in SPDI or APDI. Our study established, for the first time, a clear response of disease severity to numbers of ascospores discharged. SPDI was lower in plots containing flutriafol- or glufosinate-ammonium-treated residues compared with water-only control plots. Nearly all seedlings remained symptom-free in flutriafol-treated plots compared with only 20% in the water-only control plots. Crown canker measurement on adult plants indicated significantly lower APDI in plots containing flutriafol- or glufosinate-ammonium-treated residues compared with the untreated control plots. SPDI was highly correlated to APDI.

Relationship of Manifest Aggressiveness to Aggressive Word Associations

1969 ◽  
Vol 25 (3) ◽  
pp. 711-714 ◽  
Author(s):  
Russell G. Geen ◽  
Robert George
Keyword(s):  
Verbal Behavior ◽  
Social Desirability ◽  
Habit Strength ◽  
Self Report ◽  
Social Desirability Scale ◽  
Word Associations ◽  
Highly Correlated ◽  
Cue Words ◽  
Relationship Of ◽  
The Relationship

A self-report inventory made up of items from the Buss-Durkee manifest aggressiveness scales, the Marlowe-Crowne Social Desirability Scale, and the Masculinity-Femininity scale of the Guilford-Zimmerman Temperament Survey was administered to 72 men along with a test of verbal associations to aggressive and neutral cue words. The number of aggressive associations made to aggressive cue words was highly correlated with over-all manifest aggressiveness and with two of the aggressiveness subscales. The results were discussed in terms of the relationship of aggressiveness habit strength to verbal behavior.

Comparison of Two Sociometric Devices for Measuring Personality Integration

1971 ◽  
Vol 29 (3_suppl) ◽  
pp. 1035-1039
Author(s):  
Logan Wright
Keyword(s):  
Locus Of Control ◽  
The Other ◽  
Self Concept ◽  
College Age ◽  
Functional Measure ◽  
Personality Integration ◽  
Validity Measures ◽  
Highly Correlated ◽  
Relationship Of ◽  
The Relationship

A comparison was made of two sociometric measures of personality integration. Contrary to prediction, the more brief, 6-item PIRT scale was significantly more reliable ( r11 = .84) than the lengthier 30-item ESD scale ( r11 = .74). Also contrary to prediction, neither test was more highly correlated than the other (and therefore more valid) with any of 8 construct-validity measures. It was concluded that the PIRT was the more functional measure and therefore recommended for use in future personality integration research. Earlier results concerning the relationship of personality integration to self-concept and environmental contact, as well as locus of control and locus of evaluation in college-age females, were replicated.

scholarly journals A Possible Relationship Between Toxicity and Carcinogenicity

1986 ◽  
Vol 5 (2) ◽  
pp. 137-151 ◽  
Author(s):  
L. Zeise ◽  
E. A.C. Crouch ◽  
R. Wilson
Keyword(s):  
Acute Toxicity ◽  
National Cancer Institute ◽  
Chronic Toxicity ◽  
Positive Finding ◽  
National Toxicology Program ◽  
Technical Report Series ◽  
Technical Report ◽  
Highly Correlated ◽  
Relationship Of ◽  
The Relationship

Carcinogenic response is compared to noncarcinogenic toxicity in that group of chemicals tested by the National Cancer Institute (NCI) and National Toxicology Program (NTP) between 1976 and 1982 and reported in the Carcinogenesis Technical Report Series. A positive finding of carcinogenicity in the bioassay is correlated with the degree of noncarcinogenic chronic toxicity of the dose applied. Comparisons of acute toxicity (LD50) with carcinogenic potency show that they are correlated, but the correlation may in part be an artifact, since doses used in the NCI/NTP carcinogenesis bioassays are toxic and because reliable measures of potency can only be derived for positive carcinogenic responses. The high correlations for certain classes of chemicals and the relationship of chronic toxicity to positive carcinogenic finding suggest that these relationships are more than spurious. Since toxicities in different species are highly correlated, these findings imply that carcinogenicities in different species are also correlated.

INFLUENCE OF IRRIGATION AND SEEDING RATES ON YIELD AND YIELD COMPONENTS OF BRASSICA NAPUS CV. TOWER

1978 ◽  
Vol 58 (3) ◽  
pp. 731-737 ◽  
Author(s):  
J. M. CLARKE ◽  
G. M. SIMPSON
Keyword(s):  
Brassica Napus ◽  
Yield Components ◽  
Seed Weight ◽  
Plant Morphology ◽  
Yield Component ◽  
Seeding Rate ◽  
Brassica Napus L ◽  
Relationship Of ◽  
The Relationship ◽  
Number Of Seeds

An analysis of the yield components of rape (Brassica napus L.) was carried out under field conditions for 2 yr at Saskatoon. Plant morphology and the crop environment were altered by the use of four planting densities and three water regimes. The number of branches per plant was scarcely affected by irrigation, but was reduced by high seeding rates. Number of pods per plant was increased by irrigation and reduced by high seeding rates. The number of seeds per pod was increased by irrigation, but reduced by high seeding rates. The 1,000-seed weight was increased both by irrigation and increased seeding rate, as was seed yield. Yield was positively correlated with 1,000-seed weight in both years. Yield component compensation was evident in the relationship of 1,000-seed weight to pod number and number of seeds per pod.

Identifying seedling and adult plant resistance of Chinese Brassica napus germplasm to Leptosphaeria maculans

2016 ◽  
Vol 66 (5) ◽  
pp. 752-762 ◽  
Author(s):  
X. Zhang ◽  
G. Peng ◽  
P. Parks ◽  
B. Hu ◽  
Q. Li ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Plant Resistance ◽  
Adult Plant Resistance ◽  
Leptosphaeria Maculans ◽  
Adult Plant

Monte Carlo Study of Dispersive Transport in Glassy Electrolytes

1994 ◽  
Vol 369 ◽  
Author(s):  
D. Knödler ◽  
P. Pendzig ◽  
W. Dieterich
Keyword(s):  
Monte Carlo ◽  
Lattice Gas ◽  
Monte Carlo Study ◽  
Power Laws ◽  
Dispersive Transport ◽  
Coulombic Interactions ◽  
Highly Correlated ◽  
Relationship Of ◽  
The Relationship ◽  
Network Glasses

AbstractA lattice-gas model is presented, where ions are diffusing in an energy landscape due to immobile, randomly placed counterions. All Coulombic interactions are taken into account.By Monte Carlo simulations we obtain the ac-conductivity, which shows strong dispersion in the form of power-laws. In a separate study we investigate a restricted model, where long-range diffusion is suppressed. These calculations suggest that the response at high frequencies can be interpreted in terms of highly correlated, local motions of dipolar character. Conductivity exponents n1 near unity or even exceeding unity arefound in that regime. We discuss the relationship of these results to experiments on ionic transport in alkali-doped network glasses.

scholarly journals Poor or Just Feeling Poor-Situation in Albania

2017 ◽  
Vol 13 (10) ◽  
pp. 105
Author(s):  
Ruzhdie Bici ◽  
Ahmet Mancellari
Keyword(s):  
Socioeconomic Factors ◽  
Household Composition ◽  
Living Standard ◽  
Standard Measurement ◽  
Subjective Poverty ◽  
Advantages And Disadvantages ◽  
Highly Correlated ◽  
Socio Demographic Factors ◽  
Relationship Of ◽  
The Relationship

There exist different methods and definition how to measure poverty. It can be measured by income or consumption, objectively or as a perception of individuals for their socio-economic situation.The objective and subjective poverty are highly correlated and both are influenced by socioeconomic factors. Till now, it is the objective poverty mostly considered while the subjective one has been analyzed only as a part of it. Assessments of the subjective poverty are more scarce, especially in the case of transition countries. Different studies proposed advantages and disadvantages of using each method. The significance of different factors shows the characteristics and the trend of monetary or subjective poverty. The national poverty is Albania is calculated through monetary poverty. There are a set of influenced factors related with household composition, geographic division, education and other socio-economic indicators. In this paper we analyze the perception of individuals for the poverty, the relationship of this perception with the objective poverty, and the socio-demographic factors that influence the probability of being poor. There are used the data from the Albanian Living Standard Measurement Survey (LSMS).

scholarly journals Genetic Relationships Among Brassica napus Crops Based on SSR Markers

HortScience ◽  
2006 ◽  
Vol 41 (5) ◽  
pp. 1195-1199 ◽  
Author(s):  
Pilar Soengas ◽  
Pablo Velasco ◽  
Guillermo Padilla ◽  
Amando Ordás ◽  
Maria Elena Cartea
Keyword(s):  
Brassica Napus ◽  
Genetic Basis ◽  
Genetic Relationships ◽  
Similarity Coefficient ◽  
Human Consumption ◽  
Genotypic Differences ◽  
Northwestern Spain ◽  
Sources Of Variation ◽  
Relationship Of ◽  
The Relationship

Brassica napus includes economically important crops such as oilseed rape, rutabaga, and leaf rape. Other vegetable forms of Brassica napus, namely nabicol and couve-nabiça, are grown in northwestern Spain and north of Portugal, respectively, and their leaves are used for human consumption and fodder. The relationship of nabicol with other Brassica napus leafy crops was studied before, but its origin remained unclear. The aims of this work were to study the genetic relationships among nabicol landraces and other B. napus crops based on microsatellites and to relate the genotypic differences with the use of the crop. The relationship among 35 Brassica napus populations representing different crops was studied based on 16 microsatellite markers. An analysis of molecular variance was performed partitioning the total variance into three components. The source of variation resulting from groups was defined considering the main use of the crop and accounted for a smaller percentage of variation than other sources of variation, proving that this division is not real. Populations clustered into seven different clusters using a similarity coefficient of 0.82. No clear association was evident between clusters and the main use of populations, suggesting genetic differences among populations could reflect differences in their origin/breeding or domestication. Spanish nabicol could have originated from a sample of couve-nabiças, and couve-nabiças could be used to improve nabicol landraces, because they have a narrow genetic basis that limits their potential for breeding.

scholarly journals Prevalence of cognitive and functional impairment in community-dwelling elderly: importance of evaluating activities of daily living

2005 ◽  
Vol 63 (2a) ◽  
pp. 207-212 ◽  
Author(s):  
Jerson Laks ◽  
Elienai Maria Rubim Batista ◽  
Elza Rocha Lima Guilherme ◽  
Ana Lúcia Barros Contino ◽  
Maria Eliete Vieira Faria ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Functional Impairment ◽  
Family Health ◽  
Community Dwelling ◽  
Chi Square ◽  
Highly Correlated ◽  
And Gender ◽  
Stratified Analysis ◽  
Relationship Of ◽  
The Relationship

The study aims to evaluate the prevalence of cognitive/functional impairment in community-dwelling elderly above 60 years of age (n= 870; m=297, f=573) and the relationship of age, gender, and functional impairment with cognitive impairment using Mini-Mental State Examination (MMSE) and Pfeffer Functional Activities Questionnaire (PFAQ). Chi-square and Student's tests were used to compare cognitive and functional deficits. Linear regression assessed MMSE/PFAQ relationship. Stratified analysis assessed confounding factors. Logistic regression assessed the relationship among age/gender/functional status with cognitive impairment (p<0.05). Prevalence of cognitive/functional impairment was 19.2%. Functional and cognitive impairment are negatively correlated (Pearson= 0.737), despite educational level (illiterate/literate: OR=15.60; p=0/OR = 16.40; p=0). Age and gender (female) were associated with cognitive/functional impairment. Functional impairment is highly correlated to cognitive impairment. Family/health professionals may recognize functional impairment more easily than cognitive impairment. Thus, the use in combination of cognitive and functional scales is important when screening for dementia.

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