scholarly journals Biometric characterization of Campomanesia xanthocarpa (Mart.) O. Berg. in an araucaria forest

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
Isabel Homczinski ◽  
Afonso Figueiredo Filho ◽  
Fabiane Aparecida de Sousa Retslaff ◽  
Andrea Nogueira Dias ◽  
Ana Paula Micali Figueiredo ◽  
...  
Keyword(s):  
Slow Growth ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Araucaria Forest ◽  
Total Height ◽  
Crown Diameter ◽  
Crown Length ◽  
Length Width ◽  
Selection For

The present research aimed to analyze biometric characteristics of Campomanesia xanthocarpa and its fruits and its fruit yield. This study was developed in araucaria forest at Irati National Forest, Paraná state. To perform this analysis, 31 individuals were selected and the total height and commercial height, diameter breast height (DBH), crown diameter, crown length, crown proportion, crown formal, salience index, range index and slenderness rate were measured. From the fruits, variables as length, width, weight and number of seeds per fruit were measured. The fruit yield was estimated by means of the fruit number per branch and the average fruit weight per tree. The species presented total height, DBH and crown diameter of 14.2 m, 32.09 cm and 9.5 m, respectively. The crown diameter is 30 times greater than DBH, and 49.71% from total height is occupied by its crown. The fruits presented 22.01 mm, 19.74 mm, 6.64 g and eight units for width, length, weight and seeds/fruit, respectively. The yield was 1.273 fruits, with 8.64 kg.tree-1. The species presents slow growth, with slender crown and resistance to weathering. Its fruits had great potential for selection for commercialization.

scholarly journals Fruit characterization of Venezuelan avocado varieties of medium oil content

2000 ◽  
Vol 57 (4) ◽  
pp. 791-794 ◽  
Author(s):  
Vicente Manuel Gómez-López
Keyword(s):  
Moisture Content ◽  
Oil Content ◽  
Fruit Shape ◽  
Fruit Weight ◽  
Avocado Fruit ◽  
Length Width

The objective of the present paper was to characterize some avocado fruit varieties to increase the information pool for this fruit. Twelve avocado varieties of medium oil content (8.09-11.12%) from a Venezuelan orchard: Wilson Popenoe, Figueroa 1, Waldin, Puebla, Schaff, Celia, Araira FM, Adolfo, Esencia de la Vega, Lawhon, Winslowson, and Lujo were characterized for pulp oil and moisture; weight (whole fruit, seed, pulp, and peel); length, width, and fruit shape; peel characteristics (roughness, color and hand peeling); and ripeness time. Differences in oil content, moisture content and fruit weight were found when compared with results reported by other authors. The variety Puebla was the lightest (107 g) and the smallest (7.90 x 4.62 cm), while Wilson Popenoe presented the highest pulp proportion (82%). Most of the varieties were ovate, with rough green peel and easy to hand peel. Peak ripeness of some varieties was at 3-12 days. Potential yields of two varieties were higher that the Venezuelan average.

scholarly journals Genetic variation and trait relationship in the exotic and local eggplant germplasm

1970 ◽  
Vol 34 (1) ◽  
pp. 91-96 ◽  
Author(s):  
MS Islam ◽  
MS Uddin
Keyword(s):  
Genetic Variation ◽  
Key Words ◽  
Correlation Coefficients ◽  
Positive Association ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Genetic Advance ◽  
Coefficients Of Variation ◽  
Selection For ◽  
Local Germplasm

Sixteen genotypes of local and exotic germplasms were studied to estimate variability, hcritability, genetic advance, and correlation coefficients. High genotypic and phenotypic coefficients of variation were obtained for number of fruits/plant, individual fruit weight, and yield per plant. Heritability and genetic advance were also high for these traits indicating the possibility of selection to improve these characters. Yield of fruits showed highly significant and positive association with number of fruits per plant and individual fruit weight, which indicate the importance of these characters during selection for high yielding genotypes in eggplant. Among the genotypes, Islampuri produced the highest fruit yield (58.8 t/ha) followed by Tall begun (52.8 t/ha) and EG 120 (49.6 t/ha). Incidence of borer infestation ranged from 3.0 to 20.6 %. The lowest borer infestation was found in EG 120 (3.0%), while it was the highest in EG 192 (20.6%) Key Words: Genetic variation; trait relationship; exotic and local germplasm; eggplant. DOI: 10.3329/bjar.v34i1.5758Bangladesh J. Agril. Res. 34(1) : 91-96, March 2009

scholarly journals GROWTH OF A POPULATION OF Cabralea canjerana IN A NATURAL REGENERATION STAGE IN THE SECONDARY FOREST WITH USE OF THE LIBERATION

FLORESTA ◽  
2019 ◽  
Vol 49 (3) ◽  
pp. 553
Author(s):  
Anna Paula Lora Zimmermann ◽  
Frederico Dimas Fleig
Keyword(s):  
Natural Regeneration ◽  
Secondary Forest ◽  
Young Population ◽  
Total Height ◽  
Clear Cutting ◽  
Crown Diameter ◽  
Regeneration Stage ◽  
Crown Length ◽  
Competition Control ◽  
Species Being

This work aimed to verify the influence of the liberation technique on the growth of a young population of Cabralea canjerana, based on this to determine the best size for the plants to be liberated and to verify the differences in growth between emergent and dominate plants. The liberation consisted of the clear cutting of all species different from the species of interest, with 90 trees from the species being liberated and 73 being kept in competition (control). The variables total height and diameter at 10 cm from the soil were previously and annually, for four years after the liberation, measured. At the end of the experiment the crown diameter, crown length and branch insertion height were measured and the trees were classified according the treatment and sociological position (emergent or dominated). The data were submitted to means tests in the statistical package SISVAR. Liberated plants showed a higher increase in diameter or height than not liberated trees. However, the increase gain in diameter and height is higher when realized in plants up to 100 cm high, especially if the plants are able to become emergent. Not liberated emergent trees showed higher branch insertion height in the stem, which in practice shows a higher proportion of stem free from nodes. Thus, it is concluded that the liberation stimulates the growth of young trees of C. canjerana.

Characterization of Genetic Resources and Identification of Selection Indices of Brinjal (Solanum melongena L.) Grown in Eastern India

2011 ◽  
Vol 74 (1) ◽  
pp. 39-49 ◽  
Author(s):  
Arup Chattopadhyay ◽  
Subrata Dutta ◽  
Pranab Hazra
Keyword(s):  
Genetic Resources ◽  
Solanum Melongena ◽  
Fruit Weight ◽  
Yield Component ◽  
Fruit Yield ◽  
Eastern India ◽  
Selection Indices ◽  
Marketable Fruit ◽  
Positive Direct

Characterization of Genetic Resources and Identification of Selection Indices of Brinjal (Solanum melongenaL.) Grown in Eastern IndiaThirty five diverse genotypes of brinjal collected from different parts of Eastern India were characterized as per the documented descriptors and were evaluated for their morphological and yield component characters during autumn-winter season. All the brinjal genotypes under study showed highly significant variations among twelve quantitative traits. However, a wide range of days to 50% of flowering (47-79), fruit length (8.70 -23.90 cm), fruit girth (2.67-10.30 cm), fruit weight (52.33-319.37 g), number of marketable fruit per plant (4.33-12.00) and marketable fruit yield per plant (0.39-1.68 kg) among the genotypes was observed. Three characters namely, fruit weight, plant height and days to 50% of flowering exhibited high heritability and genetic advance indicating that such situation may arise due to the action of additive genes controlling the characters. The genotypic and phenotypic correlations agreed closely with each other. Fruit weight and fruit girth exhibited significantly positive correlations with marketable fruit yield per plant. Among the eleven yield component traits, fruit weight and number of marketable fruits per plant showed highly positive direct effect on marketable fruit yield per plant. Attention should be paid on selection based on marketable fruit weight and number of marketable fruits per plant for marketable yield improvement of brinjal.

scholarly journals Characterization of Identified Distinct Tamarind (Tamarindus indica L.) Genotypes for Yield-related Morphological Traits in Karnataka

2021 ◽  
pp. 14-23
Author(s):  
M. N. Mamathashree ◽  
B. G. Prakash ◽  
B. Fakrudin ◽  
U. Jayashree ◽  
M. K. Honnabyraiah ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Seed Weight ◽  
Morphological Traits ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Genetic Advance ◽  
Monotypic Genus ◽  
Tamarindus Indica ◽  
High Heritability

A monotypic genus crop tamarind is one of the important grown in India. The multipurpose tree comprises multiuse in cuisine preparation to medicine. All the parts of the tree have been used in many industries. The present study was conducted to assess the quantum of diversity in seventeen morphological traits of identified distinct 96 tamarind genotypes collected from 30 districts of Karnataka during 2018-19 at College of Horticulture, Bengaluru. The morphological traits including fruit yield/plant were observed. Among major yield attributing morphological traits viz., fruit weight ranged from 4.27-32.45 g, pulp weight ranged from 2.10-15.00 g and fruit yield/plant ranged from 49.50 to 298.50 kg. The genetic variation components viz., PCV ranged from 13.93 to 48.25 while GCV ranged from 12.22 to 47.28. The high heritability coupled with high genetic advance as per cent over mean was observed in the traits such as fruit weight (96%, 91.20%) and seed weight (96%, 95.45%) while moderate heritability and genetic advance as per cent over mean was revealed in fruit yield/plant (78.00 %, 55.83 %). Present study brought out and identified three top best performing tamarind genotypes TAM_KOL4, TAM_BEN(U)3 and TAM_BEN(U)4 expressed higher yield over the check GKVK17 recorded third highest fruit yield/plant but however it was not significant. The selection based on yield related traits and best performing genotypes in terms of fruit yield/plant could be effectively used in tamarind breeding programme.

scholarly journals Characterization of M dwarfs using optical mid-resolution spectra for exploration of small exoplanets

2020 ◽  
Author(s):  
Yohei Koizumi ◽  
Masayuki Kuzuhara ◽  
Masashi Omiya ◽  
Teruyuki Hirano ◽  
John Wisniewski ◽  
...  
Keyword(s):  
Sample Selection ◽  
Optical Spectra ◽  
Average Error ◽  
Spectral Energy ◽  
M Dwarfs ◽  
Energy Distributions ◽  
Fitting Procedures ◽  
Optical Region ◽  
Selection For

Abstract We present the optical spectra of 338 nearby M dwarfs, and compute their spectral types, effective temperatures (Teff), and radii. Our spectra were obtained using several optical spectrometers with spectral resolutions that range from 1200 to 10000. As many as 97% of the observed M-type dwarfs have a spectral type of M3–M6, with a typical error of 0.4 subtype, among which the spectral types M4–M5 are the most common. We infer the Teff of our sample by fitting our spectra with theoretical spectra from the PHOENIX model. Our inferred Teff is calibrated with the optical spectra of M dwarfs whose Teff have been well determined with the calibrations that are supported by previous interferometric observations. Our fitting procedures utilize the VO absorption band (7320–7570 Å) and the optical region (5000–8000 Å), yielding typical errors of 128 K (VO band) and 85 K (optical region). We also determine the radii of our sample from their spectral energy distributions. We find most of our sample stars have radii of <0.6 R⊙, with the average error being 3%. Our catalog enables efficient sample selection for exoplanet surveys around nearby M-type dwarfs.

Mutants of Chlamydomonas reinhardtii Deficient in Mitochondrial Complex I: Characterization of Two Mutations Affecting the nd1 Coding Sequence

Genetics ◽  
2001 ◽  
Vol 158 (3) ◽  
pp. 1051-1060
Author(s):  
Claire Remacle ◽  
Denis Baurain ◽  
Pierre Cardol ◽  
René F Matagne
Keyword(s):  
Mitochondrial Genome ◽  
Chlamydomonas Reinhardtii ◽  
Complex I ◽  
Slow Growth ◽  
Nadh:Ubiquinone Oxidoreductase ◽  
Sequencing Analysis ◽  
Mitochondrial Complex ◽  
Genetical Analysis ◽  
Complex I Activity

Abstract The mitochondrial rotenone-sensitive NADH:ubiquinone oxidoreductase (complex I) comprises more than 30 subunits, the majority of which are encoded by the nucleus. In Chlamydomonas reinhardtii, only five components of complex I are coded for by mitochondrial genes. Three mutants deprived of complex I activity and displaying slow growth in the dark were isolated after mutagenic treatment with acriflavine. A genetical analysis demonstrated that two mutations (dum20 and dum25) affect the mitochondrial genome whereas the third mutation (dn26) is of nuclear origin. Recombinational analyses showed that dum20 and dum25 are closely linked on the genetic map of the mitochondrial genome and could affect the nd1 gene. A sequencing analysis confirmed this conclusion: dum20 is a deletion of one T at codon 243 of nd1; dum25 corresponds to a 6-bp deletion that eliminates two amino acids located in a very conserved hydrophilic segment of the protein.

Characterization of the Uncertainties in the Inspection Results of Ultrasonic Intelligent Pigs

2013 ◽  
Author(s):  
Mamdouh M. Salama ◽  
Bruce J. Nestleroth ◽  
Marc A. Maes ◽  
Chris Dash
Keyword(s):  
Probabilistic Models ◽  
Service Providers ◽  
Quantitative Risk Assessment ◽  
Life Extension ◽  
Internal Corrosion ◽  
Integrity Assessment ◽  
Diameter Pipe ◽  
Length Width ◽  
Pull Through

In-Line Inspections using magnetic flux leakage (MFL) and the Ultrasonic (UT) intelligent pigs are the most common tools used to assess the integrity of pipelines. But, both MFL and UT inspection results are subject to various sources of uncertainties which must be quantified and accounted for in the integrity assessment of the inspected pipeline. A series of pull-through tests (PTT) of seven MFL tools and two UT tools from five service providers was performed on a 12-inch diameter pipe containing pre-existing internal corrosion defects of various length, width, and depth, and located in a variety of circumferential and longitudinal positions. The results of these tests are used to quantify the detectability statistics and the sizing uncertainties of the different tools for future use in developing calibrated probabilistic models for reliability based inspection, quantitative risk assessment and life extension studies for pipelines. The results of the MFL tools were presented in 2012 OMAE conference and this paper presents the results of the two UT tools.

Biochemical and genetic characterization of a yeast TFIID mutant that alters transcription in vivo and DNA binding in vitro

1992 ◽  
Vol 12 (5) ◽  
pp. 2372-2382
Author(s):  
K M Arndt ◽  
S L Ricupero ◽  
D M Eisenmann ◽  
F Winston
Keyword(s):  
Amino Acid ◽  
Dna Binding ◽  
Direct Repeat ◽  
Single Amino Acid ◽  
Wild Type ◽  
Dna Binding Specificity ◽  
Selection For

A mutation in the gene that encodes Saccharomyces cerevisiae TFIID (SPT15), which was isolated in a selection for mutations that alter transcription in vivo, changes a single amino acid in a highly conserved region of the second direct repeat in TFIID. Among eight independent spt15 mutations, seven cause this same amino acid change, Leu-205 to Phe. The mutant TFIID protein (L205F) binds with greater affinity than that of wild-type TFIID to at least two nonconsensus TATA sites in vitro, showing that the mutant protein has altered DNA binding specificity. Site-directed mutations that change Leu-205 to five different amino acids cause five different phenotypes, demonstrating the importance of this amino acid in vivo. Virtually identical phenotypes were observed when the same amino acid changes were made at the analogous position, Leu-114, in the first repeat of TFIID. Analysis of these mutations and additional mutations in the most conserved regions of the repeats, in conjunction with our DNA binding results, suggests that these regions of the repeats play equivalent roles in TFIID function, possibly in TATA box recognition.

scholarly journals Morphological and Molecular Characterization of Major Quince Cultivars from Turkey

2016 ◽  
Vol 44 (1) ◽  
pp. 72-76 ◽  
Author(s):  
Hasan PINAR ◽  
Suat KAYMAK ◽  
Serif OZONGUN ◽  
Aydın UZUN ◽  
Mustafa UNLU ◽  
...  
Keyword(s):  
Genetic Similarity ◽  
Fruit Weight ◽  
Asia Minor ◽  
Diversity Analysis ◽  
Cydonia Oblonga ◽  
Fruit Characteristics ◽  
Rosaceae Family ◽  
High Level ◽  
Morphological And Molecular Characterization

Quince (Cydonia oblonga Mill.) belongs to the Rosaceae family is native to south-eastern Europa and Asia Minor. It is generally used for table consumption and processed into jam, jelly and marmalade. It is also used as dwarfing rootstock for pear cultivars. In the present study, fruit characteristics and genetic diversity of 17 quince cultivars from Turkey were investigated. For fruit characteristics, 'Bardacik' had the highest fruit weight. The highest SSC/Acidity ratio were obtained from 'Osmancik'. There was high level of variation in fruit characteristics among cultivars. In molecular analysis, totally 133 bands were obtained from 23 sequence-related amplified polymorphism (SRAP) primer combinations and 67 of them were polymorphic. Genetic similarity of 17 cultivars was between 0.78 and 1.00. Two cultivars ('Sekergevrek' and '32S04') were found to be more distinct from the other cultivars genetically. This study showed that there was low level of genetic variation most of quince cultivars grown in Turkey. SRAP markers firstly used in quince with this study indicating that it can be used for characterization and diversity analysis of quince.

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