Giant Hill Selection for Control of Verticillium dahliae in Potato

Plant Disease ◽  
1987 ◽  
Vol 71 (10) ◽  
pp. 937 ◽  
Author(s):  
G. D. Easton
Keyword(s):  
Verticillium Dahliae ◽  
Selection For ◽  
Giant Hill

scholarly journals Verticillium dahliae (Verticillium wilt).

2021 ◽  
Author(s):  
Krishna Subbarao
Keyword(s):  
Disease Management ◽  
Verticillium Wilt ◽  
Verticillium Dahliae ◽  
Wilt Resistance ◽  
Commercial Cultivars ◽  
Major Criterion ◽  
Selection For

Abstract V. dahliae affects many important crops worldwide and causes economically significant losses in many countries (Pegg and Brady, 2002; Inderbitzin and Subbarao, 2014). History shows that V. dahliae has the potential to evolve new strains that can overcome the resistance in commercial cultivars, particularly in cotton, lettuce, tomato and sunflower. It has also shown that the pathogen can be taken to new areas and cause serious losses (Nachmias and Krikun, 1985). Thus, for many vulnerable crops, selection for wilt resistance remains a major criterion of disease management.

Verticillium dahliae (Verticillium wilt).

2021 ◽  
Author(s):  
Krishna Subbarao
Keyword(s):  
Disease Management ◽  
Verticillium Wilt ◽  
Verticillium Dahliae ◽  
Wilt Resistance ◽  
Commercial Cultivars ◽  
Major Criterion ◽  
Selection For

Abstract Introduction: V. dahliae affects many important crops worldwide and causes economically significant losses in many countries (Pegg and Brady, 2002; Inderbitzin and Subbarao, 2014). History shows that V. dahliae has the potential to evolve new strains that can overcome the resistance in commercial cultivars, particularly in cotton, lettuce, tomato and sunflower. It has also shown that the pathogen can be taken to new areas and cause serious losses (Nachmias and Krikun, 1985). Thus, for many vulnerable crops, selection for wilt resistance remains a major criterion of disease management.

Recurrent selection for resistance to Verticillium dahliae in pepper

Euphytica ◽  
1990 ◽  
Vol 47 (1) ◽  
pp. 79-89 ◽  
Author(s):  
A. Palloix ◽  
E. Pochard ◽  
T. Phaly ◽  
A. M. Daub�ze
Keyword(s):  
Verticillium Dahliae ◽  
Recurrent Selection ◽  
Selection For

scholarly journals Selection for Resistance to Verticillium Wilt Caused by Race 2 Isolates of Verticillium dahliae in Accessions of Lettuce (Lactuca sativa L.)

HortScience ◽  
2011 ◽  
Vol 46 (2) ◽  
pp. 201-206 ◽  
Author(s):  
Ryan J. Hayes ◽  
Karunakaran Maruthachalam ◽  
Gary E. Vallad ◽  
Steven J. Klosterman ◽  
Krishna V. Subbarao
Keyword(s):  
Genetic Variation ◽  
Verticillium Wilt ◽  
Verticillium Dahliae ◽  
Partial Resistance ◽  
Disease Incidence ◽  
Greenhouse Experiments ◽  
Complete Resistance ◽  
Race 1 ◽  
Selection For ◽  
Race 2

Verticillium wilt of lettuce caused by Verticillium dahliae can cause severe economic damage to lettuce producers. The pathogen exists as two races (Races 1 and 2) in lettuce, and complete resistance to Race 1 is known. Resistance to Race 2 isolates has not been reported, and production of Race 1-resistant cultivars will likely increase the frequency of Race 2 strains. The objective of this research was to select lettuce accessions for resistance to Race 2 isolates of V. dahliae. Two independent populations totaling 314 randomly sampled PIs were evaluated for Verticillium wilt disease incidence (DI) caused by V. dahliae isolate VdLs17 in one unreplicated and two replicated greenhouse experiments. Selection for PIs with reduced DI was conducted between each experiment and plant stems were plated on semiselective media to identify colonized plants that remained non-symptomatic. No accession with complete resistance was identified, although accessions with partial resistance were selected. Genetic variation for the frequency of V. dahliae-colonized plants that remain symptomless was detected. Four PIs (169511, 171674, 204707, and 226641) were selected for further testing in three replicated greenhouse experiments and demonstrated significantly lower disease incidence than the susceptible control cultivars. The results indicate that lettuce has genetic variation for partial resistance to a Race 2 isolate of V. dahliae. The resistant PIs selected in this research are morphologically diverse, and no dependence between rate of bolting and resistance was found. PIs with partial resistance may be useful for breeding lettuce cultivars with resistance to Race 2 isolates of V. dahliae.

Framework for Selecting Vocabulary for Preliterate Children Who Use Augmentative and Alternative Communication

2019 ◽  
Vol 28 (3) ◽  
pp. 1000-1009
Author(s):  
Allison Bean ◽  
Lindsey Paden Cargill ◽  
Samantha Lyle
Keyword(s):  
Language Impairment ◽  
Augmentative And Alternative Communication ◽  
Developmentally Appropriate ◽  
School Age Children ◽  
Alternative Communication ◽  
School Based ◽  
Selection For ◽  
Nonverbal Children ◽  
Grammatical Structures ◽  
Insufficient Knowledge

Purpose Nearly 50% of school-based speech-language pathologists (SLPs) provide services to school-age children who use augmentative and alternative communication (AAC). However, many SLPs report having insufficient knowledge in the area of AAC implementation. The objective of this tutorial is to provide clinicians with a framework for supporting 1 area of AAC implementation: vocabulary selection for preliterate children who use AAC. Method This tutorial focuses on 4 variables that clinicians should consider when selecting vocabulary: (a) contexts/environments where the vocabulary can be used, (b) time span during which the vocabulary will be relevant, (c) whether the vocabulary can elicit and maintain interactions with other people, and (d) whether the vocabulary will facilitate developmentally appropriate grammatical structures. This tutorial focuses on the role that these variables play in language development in verbal children with typical development, verbal children with language impairment, and nonverbal children who use AAC. Results Use of the 4 variables highlighted above may help practicing SLPs select vocabulary that will best facilitate language acquisition in preliterate children who use AAC.

Teaching Partners to Support Communication for Adults with Acquired Communication Impairment

2013 ◽  
Vol 22 (1) ◽  
pp. 4-15 ◽  
Author(s):  
Laura J. Ball ◽  
Joanne Lasker
Keyword(s):  
Practice Patterns ◽  
Communicative Competence ◽  
Communication Disorders ◽  
Communication Impairment ◽  
Communication Partner ◽  
Communication Partners ◽  
Selection For ◽  
Communication Needs ◽  
End Of Life Communication ◽  
Lateral Sclerosis

Abstract For adults with acquired communication impairment, particularly those who have communication disorders associated with stroke or neurodegenerative disease, communication partners play an important role in establishing and maintaining communicative competence. In this paper, we assemble some evidence on this topic and integrate it with current preferred practice patterns (American Speech-Language-Hearing Association, 2004). Our goals are to help speech-language pathologists (SLPs) identify and describe partner-based communication strategies for adults with acquired impairment, implement evidence-based approaches for teaching strategies to communication partners, and employ a Personnel Framework (Binger et al., 2012) to clarify partners? roles in acquiring and supporting communication tools for individuals with acquired impairments. We offer specific guidance about AAC techniques and message selection for communication partners involved with chronic, degenerative, and end of life communication. We discuss research and provide examples of communication partner supports for person(s) with aphasia and person(s) with amyotrophic lateral sclerosis who have complex communication needs.

Identifying Measurement Invariant Item Sets in Cross-Cultural Settings Using an Automated Item Selection Procedure

Methodology ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 177-188 ◽  
Author(s):  
Martin Schultze ◽  
Michael Eid
Keyword(s):  
Measurement Invariance ◽  
Optimal Solution ◽  
Selection Procedure ◽  
Cross Cultural ◽  
Item Selection ◽  
Ant System ◽  
Item Quality ◽  
Ant System Algorithm ◽  
Selection For ◽  
Selection Of

Abstract. In the construction of scales intended for the use in cross-cultural studies, the selection of items needs to be guided not only by traditional criteria of item quality, but has to take information about the measurement invariance of the scale into account. We present an approach to automated item selection which depicts the process as a combinatorial optimization problem and aims at finding a scale which fulfils predefined target criteria – such as measurement invariance across cultures. The search for an optimal solution is performed using an adaptation of the [Formula: see text] Ant System algorithm. The approach is illustrated using an application to item selection for a personality scale assuming measurement invariance across multiple countries.

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