scholarly journals Selectivity of herbicides in the post-emergence sugarcane seedlings in primary selection fields

2019 ◽  
pp. 1232-1235
Author(s):  
Tácio Peres Silva ◽  
Amanda Mendes de Moura ◽  
Bruno Manoel Rezende de Melo ◽  
Douglas Goulart Castro ◽  
Laís Moretti Tomé ◽  
...  
Keyword(s):  
Sandy Soils ◽  
Mass Selection ◽  
Selective Action ◽  
Herbicide Treatments ◽  
Primary Selection ◽  
Establishment Phase ◽  
Final Selection ◽  
Selection Of

The hypothesis here proposed is that, in primary fields of mass selection (F1) of sugarcane, herbicides exert a selective action when applied in the early post-emergence of seedlings (POST-i) and supplemented after their establishment phase (POST-l) even in sandy soils. To verify such hypothesis, the selectivity of herbicides was studied on seedlings of three sugarcane families, after their application both at early and late post-emergence in primary selection fields (F1). The field had a randomized blocks design, with five replications, and the subdivided plots scheme was used. Twelve herbicide treatments were allocated in the plots (27 m-2), whereas the sub-plots (9 m-2) contained three families of seedlings. Each sub-plot consisted of a transplanted row (0.5 x 1.50 m) with 12 individuals of the same family. Six treatments were employed, namely, T1: tebuthiuron (1200 g ha-1) post-i + ametryn (3000 g ha-1) post-l; T2: diuron (1404 g ha-1) + hexazinone (396 g ha-1) post-i + ametryn (3000 g ha-1) post-l; T3: sulfentrazone (800 g ha-1) post-i + ametryn (3000 g ha-1) post-l; T4: diuron (1404 g ha-1) + hexazinone (396 g ha-1) post-i + metribuzin (1920 g ha-1) post-l; T5: sulfentrazone (800 g ha-1) post-i + metribuzin (1920 g ha-1) post-l, and T6: weeded plot. The sugarcane families were: F400 (♀IAC086155 x ♂unknown), F43 (♀IACBIO264 × ♂IAC911099), and F14 (♀IACSP991305 × ♂GlagaH). We concluded that the herbicides tebuthiuron (1200 g ha-1), diuron (104 g ha-1) + hexazinone (396 g ha-1), or sulfentrazone (800 g ha-1), when applied in the early post-emergence and supplemented with ametryn (3000 g ha-1) or metribuzin (1920 g ha-1) in late post-emergence (60 days from planting) of the sugarcane families studied, were selective to the seedlings. That is, no toxicity symptoms with a potential to impede the final selection of seedlings occurred.

scholarly journals Sugarcane Seedlings Influenced by the Management with Herbicides

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
T.P. SILVA ◽  
C.A.M. AZANIA ◽  
M.A. XAVIER ◽  
D. PERECIN ◽  
R. VITORINO
Keyword(s):  
Chlorophyll Content ◽  
Block Design ◽  
Alternative Treatments ◽  
Chemical Management ◽  
Randomized Block Design ◽  
Herbicide Treatments ◽  
Split Plot ◽  
Primary Selection ◽  
Selection For ◽  
Establishment Phase

ABSTRACT: This research aimed at studying herbicides selectivity on individuals from three sugarcane families after different chemical managements in primary selection fields (F1). On the field, a randomized block design with five replications in a split plot scheme was used. Twelve herbicide treatments were allocated in the plots and the three seedlings families were allocated in the sub-plots. The herbicides treatments were T1- tebuthiuron POST-i + ametryn POST-t; T2- (diuron + hexazinone) POST-i + ametryn POST-t; T3- sulfentrazone POST-i + ametryn POST-t; T4- (diuron + hexazinone) POST-i + metribuzin POST-t; T5- sulfentrazone POST-i + metribuzin POST-t; T6- imazapyr IPP; T7- imazapyr IPP + ametryn POST-t; T8- imazapyr IPP + metribuzin POST-t; T9- imazapyr IPP + tebuthiuron POST-i; T10- imazapyr PPI + (diuron + hexazinone) POST-i; T11- imazapyr IPP + sulfentrazone POST-i and T12- weeded control. Families were F400 (IAC086155 x ?), F43 (IACBIO264 x IAC911099) and F14 (IACSP991305 x GlagaH). For each individual, the intoxication symptoms and the chlorophyll content on the leaves (40 and 120 DAApós-i), the percentage of live seedlings and selected seedlings (240 DAApós-i) were evauated. The chemical management with alternative treatments (T2 to T11) was selective to the three seedlings families because it caused slight intoxication symptoms and interference in the chlorophyll content, in addition to the high percentage of survival that allowed the plants selection for the later stage (F2). The management with herbicide applied in incorporated pre-planting (IPP) was highlighted as selective even when supplemented after the establishment phase of seedlings (POST-t).

Measurements of the Cape Astrometric Survey of the Southern Hemisphere

1978 ◽  
Vol 48 ◽  
pp. 515-521
Author(s):  
W. Nicholson
Keyword(s):  
Southern Hemisphere ◽  
Automatic Measuring ◽  
Measuring Machine ◽  
Final Selection ◽  
Selection Of

SummaryA routine has been developed for the processing of the 5820 plates of the survey. The plates are measured on the automatic measuring machine, GALAXY, and the measures are subsequently processed by computer, to edit and then refer them to the SAO catalogue. A start has been made on measuring the plates, but the final selection of stars to be made is still a matter for discussion.

scholarly journals Recruitment of Employees—Assumptions of the Risk Model

Risks ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 55
Author(s):  
Halina Sobocka-Szczapa
Keyword(s):  
Risk Model ◽  
Model Identification ◽  
Added Value ◽  
Competitive Advantages ◽  
Recruitment Process ◽  
Process Risk ◽  
Model Formation ◽  
Risk Determinants ◽  
Final Selection ◽  
Selection Of

The aim of this article is to present the risk model premises related to worker recruitment. Recruitment affects the final selection of workers, whose activities contribute to corporate competitive advantages. Hiring unfavorable workers can influence the results produced by an organization. This risk mostly affects situations when searching for workers via the external labor market, although it can also affect internal recruitment. Therefore, it is necessary to attempt to identify recruitment risk determinants and classify their meaning in such processes. Model formation has both theoretical and intuitive characteristics. Model dependencies and their characteristics are identified in this paper. We attempted to assess the usability of the risk model for economic praxis. The analyses and results provide a model identification of dependencies between the factors determining a workers recruitment process and the risk which is caused by this process (employing inadequate workers who do not meet the employer’s expectations). The identification of worker recruitment process determinants should allow for practically reducing the risk of employing an inadequate worker and contribute to the reduction in unfavorable recruitment processes. The added value of this publication is the complex identification of recruitment process risk determinants and dependency formulations in a model form.

scholarly journals Sensor, Signal, and Imaging Informatics

2017 ◽  
Vol 26 (01) ◽  
pp. 120-124
Author(s):  
W. Hsu ◽  
S. Park ◽  
Charles Kahn
Keyword(s):  
Medical Informatics ◽  
Scientific Work ◽  
Imaging Informatics ◽  
Sensor Signal ◽  
Imaging Data ◽  
Extensive Search ◽  
Challenges And Opportunities ◽  
Final Selection ◽  
Selection Of

Summary Objective: To summarize significant contributions to sensor, signal, and imaging informatics published in 2016. Methods: We conducted an extensive search using PubMed® and Web of Science® to identify the scientific contributions published in 2016 that addressed sensors, signals, and imaging in medical informatics. The three section editors selected 15 candidate best papers by consensus. Each candidate article was reviewed by the section editors and at least two other external reviewers. The final selection of the six best papers was conducted by the editorial board of the Yearbook. Results: The selected papers of 2016 demonstrate the important scientific advances in management and analysis of sensor, signal, and imaging information. Conclusion: The growing volume of signal and imaging data provides exciting new challenges and opportunities for research in medical informatics. Evolving technologies provide faster and more effective approaches for pattern recognition and diagnostic evaluation. The papers selected here offer a small glimpse of the high-quality scientific work published in 2016 in the domain of sensor, signal, and imaging informatics.

scholarly journals Pre-selection of apple seedlings for partial powdery mildew (Podosphaera leucotricha Ell. et Ev. /Salm./) resistance

2011 ◽  
Vol 50 (No. 2) ◽  
pp. 65-69 ◽  
Author(s):  
J. Blažek
Keyword(s):  
Powdery Mildew ◽  
First Year ◽  
Podosphaera Leucotricha ◽  
Green House ◽  
Healthy State ◽  
The Mean ◽  
Resistant Genotypes ◽  
Different Levels ◽  
Final Selection ◽  
Selection Of

Incidences of powdery mildew were repeatedly evaluated for two years on 1 420 young seedlings of 20 progenies (of different levels of mildew susceptibility) in a green house, and then for 10 years on 642 seedlings in an orchard. Part of the seedlings in the orchard were pre-selected for the characteristic and others not. Except for the first scoring done in the first year, there was no correlation between mildew incidence on individual seedlings in the green house and their mean performance in the orchard. The seedlings with scores above 6 (resistant or tolerant) at the first stage of evaluation in the green house, however, yielded four times more desirable seedlings after final selection in the orchard than the mean of the total. The progenies that had a better healthy state as a whole yielded more partially resistant genotypes than those with low mean scores. Therefore, the progenies that most rapidly develop infestation on the whole lot should be discarded, whereas those that retain a healthy state longer should be subjected to individual selection according to the previous item.

scholarly journals Domains and Measurements of Healthy Aging in Epidemiological Studies: A Review

2018 ◽  
Vol 59 (4) ◽  
pp. e294-e310 ◽  
Author(s):  
Wentian Lu ◽  
Hynek Pikhart ◽  
Amanda Sacker
Keyword(s):  
Healthy Aging ◽  
Well Being ◽  
Epidemiological Studies ◽  
Health Security ◽  
Health Indices ◽  
Security Questions ◽  
Design And Methods ◽  
State Examination ◽  
Final Selection ◽  
Selection Of

Abstract Purpose of the Study Few studies have recommended the essential domains of healthy aging and their relevant measurement to assess healthy aging comprehensively. This review is to fill the gap, by conducting a literature review of domains and measures of healthy aging in epidemiological studies. Design and Methods A literature search was conducted up to March 31, 2017, supplemented by a search of references in all relevant articles in English. We made a final selection of 50 studies across 23 countries or regions. Results Nineteen studies applied Rowe and Kahn’s three standards to assess healthy aging. Thirty-seven studies measured physical capabilities mainly by (instrumental) activities of daily living. Cognitive functions were included in 33 studies. Nineteen of them applied Mini-Mental State Examination (MMSE). Twenty-six studies considered metabolic and physiological health, but they mainly asked the self-reported absence of diseases. Twenty-four studies assessed psychological well-being by employing diverse scales. Questions about participation in social activities were mainly asked to measure social well-being in 22 studies. Sixteen studies considered individuals’ general health status, which was mainly measured by self-rated health. Security questions were asked in five studies. Health behaviors were taken into account by three studies. Fifteen studies either applied SF-12/36 or developed health indices to assess healthy aging. Implications This review summarizes detailed scales or methods that have been used to assess healthy aging in previous epidemiological studies. It also discusses and recommends the essential domains of healthy aging, and the relevant instruments for further epidemiological research to use in the assessment of healthy aging.

Mass selection of neutral clusters in Low‐Energy Cluster Beam Deposition experiments: Is it realistic?

1994 ◽  
Vol 64 (10) ◽  
pp. 1212-1214 ◽  
Author(s):  
J. F. Roux ◽  
B. Cabaud ◽  
G. Fuchs ◽  
D. Guillot ◽  
A. Hoareau ◽  
...  
Keyword(s):  
Low Energy ◽  
Mass Selection ◽  
Cluster Beam ◽  
Cluster Beam Deposition ◽  
Energy Cluster ◽  
Selection Of ◽  
Beam Deposition

scholarly journals Cancer Informatics in 2017: A New Beginning and a Bright Future

2018 ◽  
Vol 27 (01) ◽  
pp. 223-226 ◽  
Author(s):  
Jeremy Warner ◽  
Debra Patt ◽  
Keyword(s):  
Knowledge Management ◽  
Selection Process ◽  
Research Teams ◽  
Extensive Search ◽  
New Beginning ◽  
Significant Research ◽  
Manual Review ◽  
Final Selection ◽  
Selection Of

Objective: To summarize significant research contributions on cancer informatics published in 2017. Methods: An extensive search using PubMed/Medline, Google Scholar, and manual review was conducted to identify the scientific contributions published in 2017 that address topics in cancer informatics. The selection process comprised three steps: (i) 15 candidate best papers were first selected by the two section editors, (ii) external reviewers from internationally renowned research teams reviewed each candidate best paper, and (iii) the final selection of three best papers was conducted by the editorial board of the Yearbook. Results: Results: The three selected best papers present studies addressing many facets of cancer informatics, with immediate applicability in the research and clinical domains. Conclusion: Cancer informatics is a broad and vigorous subfield of biomedical informatics. Strides in knowledge management, crowdsourcing, and visualization are especially notable in 2017.

scholarly journals Primary selection of a pedicled rectus femoris flap for protection of aortic graft

2019 ◽  
Vol 5 (4) ◽  
pp. 512-517
Author(s):  
Carissa L. Patete ◽  
Kriya Gishen ◽  
Ajani Nugent ◽  
Jorge Rey
Keyword(s):  
Rectus Femoris ◽  
Aortic Graft ◽  
Primary Selection ◽  
Selection Of

scholarly journals Hubble Space Telescope Second Generation Instrument Selection

1989 ◽  
Vol 8 ◽  
pp. 441-442
Author(s):  
E. J. Weiler
Keyword(s):  
Second Generation ◽  
Hubble Space Telescope ◽  
Selection Process ◽  
Space Telescope ◽  
Instrument Selection ◽  
Final Selection ◽  
Selection Of

AbstractThe Hubble Space Telescope Second Generation Instrument Program is described. The original instrument selection process in 1985 is discussed as well as the NASA plan to make a final selection of an infrared instrument in late 1988.

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