Three cycles of honeycomb selection for herb yield in davana (Artemisia pallens Wall.)

Euphytica ◽  
1991 ◽  
Vol 52 (2) ◽  
pp. 99-102
Author(s):  
R. N. Kulkarni
Keyword(s):  
Honeycomb Selection ◽  
Selection For ◽  
Artemisia Pallens ◽  
Herb Yield

Evaluation of Honeycomb Selection for Single Plant Yield in Durum Wheat 1

Crop Science ◽  
1982 ◽  
Vol 22 (4) ◽  
pp. 840-843 ◽  
Author(s):  
J.W. Mitchell ◽  
R.J. Baker ◽  
D. R. Knott
Keyword(s):  
Durum Wheat ◽  
Single Plant ◽  
Plant Yield ◽  
Honeycomb Selection ◽  
Selection For

Honeycomb selection for yield in early generations of spring wheat

Euphytica ◽  
1987 ◽  
Vol 36 (3) ◽  
pp. 831-839 ◽  
Author(s):  
D. M. Lungu ◽  
P. J. Kaltsikes ◽  
E. N. Larter
Keyword(s):  
Spring Wheat ◽  
Honeycomb Selection ◽  
Selection For

The effect of honeycomb selection for grain yield on a maize population

1996 ◽  
Vol 127 (2) ◽  
pp. 143-149 ◽  
Author(s):  
A. Sotiriou ◽  
M. Koutsika-Sotiriou ◽  
E. Gouli-Vavdinoudi
Keyword(s):  
Genetic Variation ◽  
Grain Yield ◽  
Source Population ◽  
Maize Population ◽  
Single Cross ◽  
Honeycomb Selection ◽  
Sib Families ◽  
Selection For ◽  
Deleterious Genes ◽  
Single Cross Hybrids

SUMMARYStarting with the F2 generation of a single-cross hybrid, a maize population was improved from cycle 0 (= F2) to cycle 4 by mass honeycomb selection and from cycle 5 to cycle 8 by pedigree honeycomb selection. Seven half-sib families were derived from cycle 8. The grain yield of these, their corresponding S1 lines, testcrosses with B73 and diallel crosses were studied. The results showed (i) that the seven half-sib families contained half the percentage of the load of deleterious genes present in the F2 generation, (ii) that four of them outyielded their corresponding single-cross hybrids, (iii) that they could constitute an open-pollinated variety, which could be used as a source population and (iv) that they revealed different patterns for general and specific combining ability. Honeycomb selection for grain yield was successful in favouring the existing additive genetic variation in the derived families.

The effects of the genotype by environmental interaction on the fixation of heterosis in tomato

2002 ◽  
Vol 139 (1) ◽  
pp. 55-60 ◽  
Author(s):  
P. A. CHRISTAKIS ◽  
A. C. FASOULAS
Keyword(s):  
Genetic Variation ◽  
Open Field ◽  
Crop Yield ◽  
Yield Components ◽  
Soil Heterogeneity ◽  
Selection Efficiency ◽  
Ge Interaction ◽  
Honeycomb Selection ◽  
Selection For ◽  
High Selection

Continuous honeycomb selection and testing in the absence of competition in a single environment, resulted in the isolation of recombinant inbreds in tomato that outperformed the hybrid only in that particular environment. Alternating selection and testing in two environments (open field v. glasshouse) reduced selection efficiency, by preventing exploitation of the whole constellation of genes contributing to heterosis. Selection in the F2 generation was most critical, as evidenced by the appearance of recombinant lines outperforming the hybrid as early as in the F3 generation. Exploitable genetic variation existed in advanced generations and even after the point of achieving theoretical homozygosity (F7 generation). In the future, and in order to fully exploit the unique possibilities offered by the honeycomb methodology (control of soil heterogeneity, high selection pressures, crop yield components), selection for reduced GE interaction should be practiced simultaneously over the target environments of adaptation.

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.

Sign in / Sign up

Export Citation Format

Share Document