Phenotypical variability of cotton bush depending on the level of applied agrotechnics

2020 ◽  
Vol 10 (10) ◽  
pp. 1049
Author(s):  
Abdullayeva Maxsudaxon Tulanovna ◽  
Amirova Toiraxon Sheraliyevna ◽  
Gaybullayeva Madinaxon Furkatovna
Keyword(s):  
Phenotypical Variability

scholarly journals Phenotypical Variability of “TURDA” Maize Germplasm for Grain Chemical Composition

1970 ◽  
Vol 66 (1) ◽  
Author(s):  
Voichita HAS ◽  
Ioan HAS ◽  
Doru PAMFIL ◽  
Ana COPANDEAN ◽  
Sorin CAMPEAN
Keyword(s):  
Grain Quality ◽  
Selection Criterion ◽  
Quality Attributes ◽  
Inbred Lines ◽  
Phenotypic Correlation ◽  
Starch Concentration ◽  
Maize Germplasm ◽  
Grain Starch ◽  
Food And Feed ◽  
Phenotypical Variability

Maize grain has many and diverse uses in the food and feed industry. The diversity of applications requires characteristics of quality in accordance to that. To examine phenotypical diversity in the grain content, it was evaluated a total of 754 maize samples: 265 local populations (landraces); 59 synthetics/composites; 430 “TURDA” inbred lines for their grain quality attributes. Comparison of the inbred lines diversity is on average the most divergent in grain starch concentration (range value 19.9) from landraces (range value 11.8) and synthetics (range value 12.5). The grain oil and ash content showed high variability among the genotypes. The quality attributes in most of the cases showed positive phenotypic correlation except grain starch contents which was negatively correlated at phenotypic levels. The objective of this study was to evaluate the potential of maize “TURDA” germplasm in according to its grain quality content, such as: protein, oil, fiber, ash and starch concentration; to estimate the extent of phenotypical variability and correlation for various quality components to formulate a selection criterion in a breeding program.

scholarly journals Testing a continuous variation in preweaning expression of muscular hypertrophy in beef cattle using field data

2002 ◽  
Vol 45 (2) ◽  
pp. 139-149 ◽  
Author(s):  
F. Goyache ◽  
L. J. Royo ◽  
I. Alvarez ◽  
J. P. Gutierrez
Keyword(s):  
Field Data ◽  
Growth Traits ◽  
Major Gene ◽  
Continuous Variation ◽  
Muscular Hypertrophy ◽  
Index Method ◽  
Factors Affecting ◽  
Calving Season ◽  
Phenotypical Variability ◽  
Growth Ability

Abstract. The hypothesis of a continuous variation in the expression of muscular hypertrophy has been tested using field data. A modification of NEUVY and VISSAC's cularity index method (Culard Index) was assayed. Expression of muscular hypertrophy showed a broad phenotypical variability. Environmental factors affecting expression of muscular hypertrophy characterised by Culard Index were calving season, age of dam, sex of calf, muscularity of dam, muscularity of sire and age of calf at weaning. In addition, Culard Index influences significantly preweaning growth traits confirming double muscled calves’ higher preweaning growth ability. Culard Index score showed moderate heritability. Expression of muscular hypertrophy could be a relatively different trait with respect to latent muscular hypertrophy that would be, in turn, determined by a partially dominant major gene. Culard Index could be an interesting tool to make use of the observable differences in expression of muscular hypertrophy.

Some Biomedical Indicators in Chronogenetics

1974 ◽  
Vol 23 (S1) ◽  
pp. 145-156
Author(s):  
M. Milani Comparetti ◽  
D.P. Pace ◽  
F. Britti ◽  
D. Casini
Keyword(s):  
Genetic Variability ◽  
Preventive Medicine ◽  
Environmental Conditions ◽  
Evolutionary Adaptation ◽  
Human Species ◽  
Biochemical Mechanisms ◽  
Differential Stability ◽  
The Individual ◽  
Phenotypical Variability ◽  
Homeostatic Mechanisms

All living beings are variously conditioned by both continuous and repetitive chronological phenomena.The greater biochemical complexity afforded by the genome of higher organisms contributes to increase their independence from environmental chronological phenomena (= increased homeostasis). Genetic variability (originated by mutations and required for evolutionary adaptation) extends its influence on the biochemical mechanisms of homeostasis.Phenotypical variability, if prevailing environmental conditions are constant, is based on genotypical variability. Thus the variability observed in the duration of homeostatic mechanisms must be genotypical.In current chronogenetical theory, Gedda and Brenci's concept of the Ergon) Chronon System provides the explanation for the observed variability in the duration of homeostatic phenomena; in this concept, the differential stability of genie information explains the variation of patterns of senescence in different individuals. From the viewpoint of the continuity of life, senescence must be considered as “physiological”, but its individual, especially initial degenerative manifestations are generally considered as pathological. The fundamental applications of chronogenetics to the human species are to be aimed in this direction.Individual phenomena of senescence may be more or less linear; the pattern of the respective curves may be common to the entire species, or else it may afford varying degrees of variability. The ascertainment of the respective curves (for which some indicators may serve as examples) is a prerequisite for the application of chronogenetics to the individual, framing him within his genealogy and providing great potential developments for preventive medicine.

Phenotypical variability of expanded alleles in the TATA-binding protein gene

2003 ◽  
Vol 250 (2) ◽  
pp. 161-163 ◽  
Author(s):  
Christine Zühlke ◽  
Ulrike Gehlken ◽  
Yorck Hellenbroich ◽  
Eberhard Schwinger ◽  
Katrin Bürk
Keyword(s):  
Protein Gene ◽  
Binding Protein ◽  
Tata Binding Protein ◽  
Binding Protein Gene ◽  
Phenotypical Variability

Rett syndrome: potential gene sources - phenotypical variability

2008 ◽  
Vol 48 (4) ◽  
pp. 169-172 ◽  
Author(s):  
Hans Olof Åkesson ◽  
Jan Wahlström ◽  
Ingegerd Witt Engerström ◽  
Bengt Hagberg
Keyword(s):  
Rett Syndrome ◽  
Phenotypical Variability

scholarly journals Neuropathological background of phenotypical variability in frontotemporal dementia

2011 ◽  
Vol 122 (2) ◽  
pp. 137-153 ◽  
Author(s):  
Keith A. Josephs ◽  
John R. Hodges ◽  
Julie S. Snowden ◽  
Ian R. Mackenzie ◽  
Manuela Neumann ◽  
...  
Keyword(s):  
Frontotemporal Dementia ◽  
Phenotypical Variability

scholarly journals Collecting and evaluation of germplasm of spiked pepper from Brazilian Amazon

2010 ◽  
Vol 28 (2) ◽  
pp. 162-167 ◽  
Author(s):  
José Maria D Gaia ◽  
Milton Guilherme da C Mota ◽  
Carmen Célia C da Conceição ◽  
José Guilherme S Maia
Keyword(s):  
Essential Oil ◽  
Branch Length ◽  
Brazilian Amazon ◽  
Biological Properties ◽  
Breeding Programs ◽  
Genetic Breeding ◽  
Number Of Leaves ◽  
Piper Aduncum ◽  
Soil Climate ◽  
Phenotypical Variability

Spiked pepper (Piper aduncum L.) is an aromatic plant species with high essential oil production. It is a species that occurs abundantly in the Brazilian Amazon. Its essential oil has exploitable biological properties in the human health and agriculture. Aiming to study its germplasm toward future use in genetic breeding programs, collecting was carried out (inflorescences, cuttings, leaves and thin branches) in ten provenances from the Brazilian Amazon. Twelve morphoagronomic traits were determined to take the data: number of leaves by branch, length of leaf, width of the leaf, circumference of the older branch, height of the plant, number of orthotropic branches, number of plageotropic branches, length of the internodes, number of spikes per branches, yielding of oil, content and production of dillapiole, as well as data on the environment and populations of spiked pepper. The inflorescences and cuttings were encoded and sent for the Federal Rural University from Pará State (UFRA), Brazil, for propagation. The leaves and thin branches were sent for the Emílio Goeldi Museum, from Pará State (MPEG) for extraction of essential oil (hydrodistillation). Estimators of amplitude of variation, mean, standard deviation and coefficient of variation were utilized to study the phenotypical variability. The morphoagronomic traits of largest variability were number of orthotropic branches, number of spikes per branch, circumference of the older branch and the content and production of dillapiole. This species has adapted to many different environments of vegetation, soil, climate, relief and drainage becomming easy the domestication and cropping. There is morphoagronomic variability pleasing the selection and genetic breeding.

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