Investigations on brown rot of apricots caused by Sclerotinia fructicola (Wint.) Rehm. II. The relationship of the potassium status of apricot trees to brown rot susceptibility

1956 ◽  
Vol 7 (6) ◽  
pp. 516 ◽  
Author(s):  
GC Wade
Keyword(s):  
Potassium Chloride ◽  
Brown Rot ◽  
Potassium Content ◽  
Regression Equations ◽  
Potassium Fertilizer ◽  
Negative Relation ◽  
Satisfactory Treatment ◽  
Relationship Of ◽  
The Relationship ◽  
Spray Applications

It is shown that under Tasmanian conditions there is a negative relation between the potassium status of apricot trees and their susceptibility to brown rot. From regression equations calculated, it is suggested that trees with a potassium content of about 4.6 per cent. in oven-dry leaves would be resistant to brown rot. Difficulty was experienced in increasing the potassium content of the trees by soil or spray applications of potassium fertilizer, but when this was achieved, some reduction in brown rot incidence occurred. Regular annual soil dressings of potassium chloride at the rate of 2 lb per tree was the most satisfactory treatment tested.

Relation of Tolerance of Ambiguity to Global and Specific Paranormal Experience

1998 ◽  
Vol 83 (3) ◽  
pp. 807-818 ◽  
Author(s):  
James Houran ◽  
Carl Williams
Keyword(s):  
Drug Use ◽  
Undergraduate Students ◽  
Negative Relation ◽  
Tolerance Of Ambiguity ◽  
Paranormal Beliefs ◽  
Internal Experience ◽  
Relationship Of ◽  
The Relationship ◽  
Paranormal Experience

We examined the relationship of tolerance of ambiguity to severe global factors and specific types of anomalous or paranormal experience. 107 undergraduate students completed MacDonald's 1970 AT-20 and the Anomalous Experiences Inventory of Kumar, Pekala, and Gallagher. Scores on the five subscales of the Anomalous Experiences Inventory correlated differently with tolerance of ambiguity. Global paranormal beliefs, abilities, experiences, and drug use were positively associated with tolerance of ambiguity, whereas a fear of paranormal experience showed a negative relation. The specific types of anomalous experiences that correlated with tolerance of ambiguity often involved internal or physiological experience, e.g., precognitive dreams, memories of reincarnation, visual apparitions, and vestibular alterations. We generally found no effects of age or sex. These results are consistent with the idea that some paranormal experiences are misattributions of internal experience to external (‘paranormal’) sources, a process analogous to mechanisms underpinning delusions and hallucinations.

Prediction of Stroke Volume From Oxygen Pulse Measurements in Untrained and Trained Men

1994 ◽  
Vol 19 (1) ◽  
pp. 49-59 ◽  
Author(s):  
Yagesh Bhambhani ◽  
Stephen Norris ◽  
Gordon Bell
Keyword(s):  
Stroke Volume ◽  
Stroke Volume Index ◽  
Volume Index ◽  
Regression Equations ◽  
Cycle Exercise ◽  
Oxygen Pulse ◽  
Difference Formula ◽  
Relationship Of ◽  
The Relationship ◽  
Oxygen Difference

This study examined the relationship of oxygen pulse (O2 pulse) to stroke volume (SV) and arterio-venous oxygen difference [[Formula: see text] diff] during submaximal cycle exercise in untrained (UG) and trained (TG) males. Fourteen volunteers in each group completed an incremental [Formula: see text] max test and a submaximal test at 60% [Formula: see text] max to determine cardiac output (Q) via CO2 rebreathing. [Formula: see text], Q, and heart rate (HR) were used to calculate SV and [Formula: see text] diff. There were no significant differences (p >.05) between the two groups for O2 pulse, SV, and [Formula: see text] diff during submaximal exercise. Stroke volume index (SVI) was significantly higher (p <.05) in the TG. O2 pulse was significantly related to SV and SVI (p <.05) but not to [Formula: see text] diff in both groups. Regression equations for predicting SV from O2 pulse for UG and TG were Y = 6.81X + 26.7, SE = 21.4, r = 0.84, and Y = 10.33X - 32.3, SE = 14.2, r = 0.71, respectively. These results suggest that O2 pulse can be used to predict SV during submaximal cycle exercise in untrained and trained men. Key words: cardiac performance, exercise, training status

The relationship of several plant characters with grain yield in sorghum and their use in estimating grain loss through pest activity

1976 ◽  
Vol 16 (78) ◽  
pp. 129
Author(s):  
PN Vance
Keyword(s):  
Grain Yield ◽  
Moisture Stress ◽  
Close Correlation ◽  
Regression Equations ◽  
Grain Number ◽  
Potential Yield ◽  
Sowing Dates ◽  
Single Grain ◽  
Relationship Of ◽  
The Relationship

The relationship between grain yield and five plant characters in grain sorghum hybrid Pioneer 846 was studied. Grain yield was closely correlated with head weight, weight of a standard length of peduncle (WSP), peduncle perimeter (PP), head length and breadth. The close correlation of grain yield on WSP was shown to exist at a number of sites and for a number of varieties. However, regression equations differed for different sites, sowing dates and varieties. Of the two components of grain yield per head, single grain weight and grain number; only grain number was closely correlated with WSP. In one instance where moisture stress affected grain development, grain number but not yield was closely correlated with WSP. WSP was shown not to be affected by damage to the head and could therefore be used to estimate potential yield in agronomic trials where yield loss due to pest activity has occurred.

A TECHNIQUE FOR ESTIMATING THE FECUNDITY OF NATURAL POPULATIONS OF THE SPRUCE BUDWORM

1957 ◽  
Vol 35 (1) ◽  
pp. 1-13 ◽  
Author(s):  
C. A. Miller
Keyword(s):  
Natural Populations ◽  
Spruce Budworm ◽  
Regression Equations ◽  
Green River ◽  
Actual Increase ◽  
Late Instar ◽  
The Mean ◽  
Adult Dispersal ◽  
Relationship Of ◽  
The Relationship

In a severe infestation late-instar spruce budworm larvae that normally feed on current foliage may be forced to complete development on old foliage. This results in a reduction in fecundity. The precise causes of this reduction are not known, but factors that may be involved are the amount and the age of the old foliage consumed. The relationship of pupal case size and fecundity is used as a basis for estimating the expected fecundity in a natural population under these conditions of partial larval starvation. Three regression equations applicable to conditions on the Green River area, New Brunswick, are presented. An index of the actual increase of a population is obtained from an E/F ratio. Ratios may be compared in order to indicate some aspects of oviposition. Actual and expected egg populations can also be compared, subject to certain limitations, to indicate some aspects of adult dispersal. The mean number of eggs per mass in relation to degree of infestation and a simplified method of counting eggs per mass are also discussed.

Cognitive Styles and the Acquisition of a Complex Aerial Maneuver

1980 ◽  
Vol 24 (1) ◽  
pp. 578-580
Author(s):  
Jefferson M. Koonce ◽  
Thomas M. McCloy
Keyword(s):  
Air Force ◽  
Previous Experiment ◽  
Cognitive Styles ◽  
Cognitive Factors ◽  
Flight Simulator ◽  
Regression Equations ◽  
Air Force Academy ◽  
Predictive Capability ◽  
Relationship Of ◽  
The Relationship

Approximately equal number of male (45) and female (43) Air Force Academy cadets learned a complex aerial maneuver (chandelle) on a desk-top flight simulator. These cadets had participated in a previous experiment (Koonce & Berry, 1980) where they were given a battery of tests which tapped several cognitive and perceptual-motor areas. Of special interest in the present study was the relationship of the various congitive factors to the rate of acquisition of the complex aerial maneuver. Prior to the introduction of the complex maneuver all subjects were trained to criterion level on four basic instrument flight maneuvers (Koonce & McCley, 1980). Then they learned how to fly the complex maneuver with the number of trials required to reach criterion performance as the dependent variable. Results indicated cognitive factors were very significant in predicting complex maneuver performance. Additionally, individually tailoring the regression equations by sex as opposed to utilizing a general overall regression equation greatly enhanced predictive capability.

INTERRELATION OF THE LEVELS OF TRUST AND CORRUPTION OF THE COMPANY: INTERNATIONAL ANALYTICS

2020 ◽  
Vol 2 (11) ◽  
pp. 153-162
Author(s):  
A. V. GORLOV ◽  
◽  
N. E. EGOROVA ◽  
E. A. KOROLEVA ◽  
◽  
...  
Keyword(s):  
Linear Regression ◽  
Topological Model ◽  
General View ◽  
Regression Equations ◽  
Relationship Of ◽  
The Relationship

The article discusses the concepts of trust and corruption in society and explores the interdependence between them using the international Edelman Trust Barometer (ETB) Corruption Perceptions Index (CPI). The analysis of the topological model was carried out, on the basis of which the zones of low, medium and high levels of corruption were identified, with a characteristic specific type of relationship between the ETB and CPI indices; the general view of the dependence of the level of trust on corruption in the form of a horizontal S-shaped curve is approximately defined. Statistically significant linear regression equations were obtained, reflecting the relationship of the considered indices for three countries (Germany, Colombia, France).

scholarly journals Ascospore Deposition and Epiphytic Growth in Relation to Fungicide Timing for Control of Greasy Spot Rind Blotch Caused by Mycosphaerella citri

Plant Disease ◽  
2005 ◽  
Vol 89 (7) ◽  
pp. 739-743 ◽  
Author(s):  
S. N. Mondal ◽  
L. W. Timmer
Keyword(s):  
Rainy Season ◽  
Fungal Growth ◽  
Citrus Paradisi ◽  
Fresh Market ◽  
Ascospore Release ◽  
High Level ◽  
Relationship Of ◽  
The Relationship ◽  
Made In ◽  
Spray Applications

Greasy spot rind blotch is a serious problem in Florida for the production of grapefruit (Citrus paradisi) for the fresh market. In the 1970s to the early 1980s, the disease was described in detail and the cause was determined to be Mycosphaerella citri, the same species responsible for greasy spot of foliage. The most appropriate timing for fungicide sprays was determined at that time, but peak ascospore release has changed in recent years. In the present study, the relationship of ascospore deposition and fungal growth on fruit was determined in order to more accurately time fungicide applications. Infection of fruit appears to occur similarly to that of leaves: by deposition of ascospores and germination to produce epiphytic growth followed by penetration of the fungus through stomata. Ascospore deposition occurred mostly in May and June, but epiphytic growth began only after the onset of the summer rainy season in June in 2002 and 2003. Ascospore deposition was lower in 2002 than in 2003, but development of epiphytic growth was similar in both years. Timing of fenbuconazole sprays was evaluated in the 2001, 2002, and 2003 seasons. Of the single-spray applications, those in July were the most effective, sprays in June and August were moderately effective, and those made in May or September were ineffective. Two- and three-spray programs from June through August were usually more effective than single sprays, and four monthly sprays from May to August were needed for a high level of control. Fungicide applications are needed about every 3 to 4 weeks after the beginning of the rainy season in June through August for a high level of control of rind blotch.

scholarly journals Peach brown rot control and the relationship of latent infection with postharvest disease

Revista CERES ◽  
2018 ◽  
Vol 65 (6) ◽  
pp. 517-526
Author(s):  
Elizandra Pivotto Pavanello ◽  
Magno Roberto Pasquetti Berghett ◽  
Erani Eliseu Schultz ◽  
Fabio Rodrigo Thewes ◽  
Suele Fernanda Prediger Schmidt ◽  
...  
Keyword(s):  
Latent Infection ◽  
Disease Incidence ◽  
Brown Rot ◽  
Postharvest Disease ◽  
Latent Infections ◽  
Active Ingredients ◽  
Important Approach ◽  
Relationship Of ◽  
The Relationship

ABSTRACT The peach brown rot, caused by Monilinia fructicola, is the main disease of the crop, causing significant losses during preharvest and postharvest. This study aimed to evaluate the performance of preharvest fungicide application on brown rot control and verify the role of latent infection and external contamination in postharvest disease. An experiment was carried out in the years 2014 and 2015 in order to evaluate the performance of six active ingredients (captan, iprodione, iminoctadine, tebuconazole, difenoconazole and azoxystrobin) during preharvest on brown rot control and the effect on latent infection. A second experiment was carried out to monitor the latent infection during growth and ripening of the fruit and in order to correlate it with the postharvest disease incidence. The data were submitted to analysis of variance (Anova) and the means were grouped by the Scott-Knott test (p < 0.05), using statistical software Sisvar. The active ingredients iprodione, tebuconazole and difenoconazole were the most efficient in controlling brown rot on the field, while iminoctadine has higher efficiency during postharvest control, acting on latent infections. The incidence of latent infections during fruit growth and ripening has a positive correlation with brown rot incidence at postharvest. The highest disease incidence after storage is due to the latent infections manifestation. Effective chemical control in the field, throughout the growing and ripening of fruit, is an important approach to postharvest brown rot control, even after cold storage and during shelf life at 20 °C.

The indirect estimation of the digestibility of pasture herbage III. Regressions of digestibility on faecal nitrogen concentration: effects of species and individuality of animal and of the method of determining digestibility upon the relationships

1963 ◽  
Vol 61 (2) ◽  
pp. 221-226 ◽  
Author(s):  
J. P. Langlands ◽  
J. L. Corbett ◽  
I. McDonald
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Nitrogen Concentration ◽  
Regression Coefficients ◽  
Regression Equations ◽  
Concentration Effects ◽  
Animal Data ◽  
Faecal Nitrogen ◽  
Relationship Of ◽  
The Relationship

1. A 36-day continuous digestibility trial with three steers and three sheep fed fresh pasture herbage was carried out during May and June, 1960. For all animals the digestibilities of herbage organic matter (O.m.) were estimated both by collection of faeces and by administering standard quantities of chromium sesquioxide (Cr203) twice daily and determining concentrations of Cr203 in faeces. In a further 36-day trial during August and September 1960, three steers and three cows were used; with the steers, digestibilities were estimated by both methods but with the cows by the Cr203 method only.2. Regression equations were obtained relating O.m. digestibility to the percentage of nitrogen (N) in faecal O.m. When digestibilities were estimated by the same method the same regression coefficients could be fitted to the data from each of the steers and sheep in the spring trial. A similar result was found with the data from each of the steers and cows in the summer trial.3. In each equation different constant terms were required for each animal, which differed significantly between individuals but not between species or class of animal. Data obtained from an examination of the relationship of g. N excreted per 100 g. feed dry matter to g. N intake per 100 g. feed dry matter indicated that differences between the constant terms could be linked with variations between animals in the excretion of metabolic faecal N.

Sign in / Sign up

Export Citation Format

Share Document