scholarly journals Morphophenological characterization of ornamental ginger and selection for landscape use

2018 ◽  
Vol 24 (3) ◽  
pp. 255-260
Author(s):  
Carlos Eduardo Ferreira de Castro ◽  
Ana Cecilia Ribeiro Castro ◽  
Charleston Gonçalves ◽  
Vivian Loges
Keyword(s):  
Phenotypic Variability ◽  
Stem Growth ◽  
Stem Length ◽  
Leaf Color ◽  
Flowering Season ◽  
Flower Stem ◽  
Number Of Leaves ◽  
Selection For ◽  
Inflorescence Length

Many species of Zingiber have great ornamental potential, due to durability and exotic appearance of the inflorescences. Despite its large phenotypic variability, they are scarcely exploited or not yet exploited regarding the ornamental potential. To conserve potential ornamental genotypes, and subsidize breeding program, the Agronomic Institute (IAC) maintain a Germoplasm Collection of Ornamental Zingiberales with promising accessions, including Zingiber. The aim was the morphophenological characterization of ten Zingiber accessions and the indication for landscape purposes. A large variation was observed to the evaluated characters: Clump height (CH); Inflorescence visualization (IV); Clump area (CA); Clump density (CD); Leaf stem Firmness (LSF); Number of leaf stems per clump (NLSC); Number of leaves per stem (NLS); Leaf color (LCol); Evergreen tendency (ET); Flower stem growth (FSG); Flower stem length (FSLe); Flower stem diameter (FSD); Flower stem per clump (FSC); Color sensorial perception (CSP); Flower stem weight (FSW); Inflorescence length (IL); Inflorescence diameter (ID); Bracts aspects (BAs); and Flowering season (FSe). The accessions very suitable and with the best performance to use for landscape purpose were Z. spectabile, IAC Anchieta (Z. spectabile), Z. newmanii.

scholarly journals Helicônia cv. Golden Torch cultivada sob diferentes lâminas de irrigação em ambiente protegido

2018 ◽  
Vol 24 (1) ◽  
pp. 63-69
Author(s):  
Alcilane Arnaldo Silva ◽  
Márkilla Zunete Beckmann-Cavalcante ◽  
Everaldo Moreira da Silva ◽  
Bruno Ettore Pavan ◽  
Jackson Teixeira Lobo ◽  
...  
Keyword(s):  
Leaf Area ◽  
Irrigation Management ◽  
Tiller Number ◽  
Stem Length ◽  
Irrigation Level ◽  
Class A ◽  
Flower Stem ◽  
Crop Cycle ◽  
Irrigation Levels ◽  
Inflorescence Length

The genus Heliconia is commercially detached by the exotic appearance of the inflorescences but is susceptible to lack of moisture in the soil, being necessary the irrigation management. In this sense, the objective was to evaluate the effect of different irrigation levels on the plant growth and productive characters of Heliconia psittacorum cv. Golden Torch cultivated in vase. The experiment was conducted from March to October 2014, in a randomized blocks design. Five treatments corresponding to the different irrigation levels were used [50, 75, 100, 125 and 150% of the evaporation measured in Class A (ECA)] with four replicates and two plants per replicate. The following evaluations were carried out: number of days for the emergence of the first tiller, number of days for the emergence of the first inflorescence, number of days for the inflorescence harvest, crop cycle, diameter of the flower stem, length of the flower stem, inflorescence length, plant high, number of tillers and productivity of flower stems. Chlorophyll and leaf area measurements were performed. The irrigation levels tested significantly influenced the number of days for the first inflorescence harvest, length of the flower stem and inflorescence length. The irrigation level of 150% ECA provided better results for the length of the flower stem, inflorescence length and for leaf area but without differences from 75%, 100% and 125% ECA. Thus, for the cultivation of the heliconia cv. Golden Torch in pot can be recommended the level corresponding from 75% to 150% ECA.

scholarly journals Planting Time and Flurprimidol Treatment Influence the Growth and Flowering of Lachenalia

2016 ◽  
Vol 26 (3) ◽  
pp. 293-298 ◽  
Author(s):  
Anna Kapczyńska ◽  
Małgorzata Malik
Keyword(s):  
Foliar Application ◽  
Foliar Spray ◽  
Leaf Length ◽  
Planting Date ◽  
Stem Length ◽  
Stem Height ◽  
Planting Time ◽  
Inflorescence Stem ◽  
Number Of Leaves ◽  
Inflorescence Length

The growth and flowering of ‘Rupert’ and ‘Ronina’ lachenalia (Lachenalia) in a greenhouse environment were manipulated by varying planting times and flurprimidol treatments. Bulbs were planted in November, December, January, and February. At each planting date, the following flurprimidol treatments were tested: soaking the bulbs before planting (15 and 30 mg·L−1) or a single foliar spray (15, 30, 45, and 60 mg·L−1). The results showed that foliar application of flurprimidol was ineffective in controlling inflorescence stem height and inflorescence length; only soaking bulbs of ‘Rupert’ in flurprimidol at the concentration of 30 mg·L−1 shortened the inflorescence stem height. Moreover, soaking bulbs in the concentration of 30 mg·L−1 may be recommended for potted lachenalia production, as shorter and wider leaves were obtained and every planted bulb emerged and flowered. The later the date of planting of the bulbs, the more quickly the plants began to flower. As planting time was delayed, inflorescence stem length and leaf length decreased, and the number of florets and leaf width increased. Soaking the bulbs in the retardant (30 mg·L−1) delayed the emergence of flowers for 5–6 days, but the retardant did not affect the number of leaves or the number of florets per inflorescence. Regardless of the factors applied, the two cultivars of lachenalia differed with respect to each of the analyzed traits.

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.

scholarly journals Clinical characterization of 266 patients and family members with cleft lip and/or palate with associated malformations and syndromes

2021 ◽  
Author(s):  
Theodosia Bartzela ◽  
Björn Theuerkauf ◽  
Elisabeth Reichardt ◽  
Malte Spielmann ◽  
Charlotte Opitz
Keyword(s):  
Early Identification ◽  
Congenital Malformations ◽  
Cleft Lip ◽  
Phenotypic Variability ◽  
Family Members ◽  
Pierre Robin Sequence ◽  
Associated Malformations ◽  
Pierre Robin

Abstract Objectives To clinically characterize patients and family members with cleft lip and/or palate (CL/P) and associated congenital malformations or syndromes and propose possible inheritance patterns. Materials and methods An observational study of patients with CL/P, including medical and family history and intra- and extra-oral examination of their family members, was performed. Results Two hundred sixty-six patients, 1257 family members, and 42 pedigrees were included in the study. The distribution of patients according to the cleft type was 57.9% with CLP, 25.2% with cleft palate (CPO), and 12.8% with cleft lip with/without alveolus (CL/A). Seventy-four (27.8%) patients had associated malformations, and 24 (9.2%) a syndrome. The skeletal (27.7%), cardiovascular (19.3%) systems, and eyes (22.9%) were most commonly affected. Pierre Robin Sequence (7 patients) and van der Woude (4) were the most common syndromes. The majority of patients with CPO (19/24) had an associate syndrome. The families had an average of 2.45 affected members. Conclusion Individual and interfamilial phenotypic variability in patients with CL/P makes the understanding of etiopathogenesis challenging. Clinical relevance The overall prevalence of individuals with CL/P and their pedigrees with associated malformations and syndromes emphasize the need for early identification, interdisciplinary, and long-term planning.

Characterization of Beldi chicken and turkeys in rural poultry flocks of Morocco. Current state and future outlook

2001 ◽  
Vol 31 ◽  
pp. 87-95 ◽  
Author(s):  
K. Benabdeljelil ◽  
T. Arfaoui
Keyword(s):  
Rural Areas ◽  
Sexual Maturity ◽  
Phenotypic Variability ◽  
Future Outlook ◽  
Current State ◽  
Production Improvement ◽  
Rural Poultry

SummaryThe main characteristics of Beldi (meaning “native” in Arabic) poultry raised in rural areas were studied in the Khenifra Region through extensive surveys.Beldi chickens have large phenotypic variability. Black, brown, grey and white colours, pure or mixed, are frequently observed in chickens' featherings while turkeys are predominantly bronze. Plumage types were fairly homogeneous in both species. Single combs and dented combs were respectively predominant in chicken hens and roosters.Sexual maturity was reached at 154 days for roosters, 168 for hens in chicken, around 217 days for toms and 231 for turkey hens. The age at first egg averaged 5.8 months for hens and 8.4 months for turkey hens. The number of eggs laid per hen per year was 78 for chicken and 69 for turkey. Hatchability rate was 78 and 80 percent for chicken and turkeys, respectively. Diseases were the main cause of mortality, which could affect up to 77 percent of chicken flocks.Few preliminary urgent steps for the conservation of Beldi poultry are discussed with other production improvement proposals.

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 Character association and path analysis in garlic (Allium sativum L) for yield and its attributes

2014 ◽  
Vol 11 (1) ◽  
pp. 45-52 ◽  
Author(s):  
SR Singh ◽  
NA Ahmed ◽  
S Lal ◽  
Asima Amin ◽  
Mudasir Amin ◽  
...  
Keyword(s):  
Path Analysis ◽  
Plant Height ◽  
Direct Effect ◽  
Allium Sativum ◽  
Stem Length ◽  
Critical Examination ◽  
Average Weight ◽  
Character Association ◽  
Number Of Leaves ◽  
Bulb Yield

Character association and path analysis in twenty genotypically diverse indigenous genotypes of garlic (Allium sativum L.) were studied at the Central Institute of Temperate Horticulture, Srinagar during the years 2010 and 2011 for nine important characters. Total bulb yield showed positive and significant genotypic and phenotypic associations with plant height, number of leaves per plant, pseudo-stem length, bulb weight and number of cloves per bulb, indicating that selection based on these traits will help increasing the yield of garlic. Path coefficient analysis provides an effective means of a critical examination of specific force action to produce a given correlation and measure the relative importance of each factor. In this analysis bulb yield was taken as dependant variable and rest characters were considered as independent variable. Bulb weight showed high positive and direct effect and significant positive correlation with total bulb yield. Therefore, bulb with higher weight should be considered in selection criteria for increasing the total bulb yield and emphasis should be given for selecting the genotypes with higher bulb weight. Overall path analysis indicated that direct effect of bulb weight and equatorial bulb diameter and indirect effect of plant height, number of leaves per plant, pseudo stem length, polar bulb diameter, equatorial bulb diameter, number of cloves per bulb and average weight of 50 cloves should be considered simultaneously for amenability of total bulb yield. DOI: http://dx.doi.org/10.3329/sja.v11i1.18374 SAARC J. Agri., 11(1): 45-52 (2013)

scholarly journals Biofertlizer Lumbrical improves the growth and ex vitro acclimatization of micropropagated pear plants

2021 ◽  
Vol 22 (1) ◽  
pp. 17-30
Author(s):  
Nataliya Dimitrova ◽  
Lilyana Nacheva ◽  
Małgorzata Berova ◽  
Danuta Kulpa
Keyword(s):  
Woody Species ◽  
Photosynthetic Photon Flux Density ◽  
Stem Length ◽  
Photon Flux ◽  
Photon Flux Density ◽  
Ex Vitro ◽  
Fluorescent Lamps ◽  
Planting Material ◽  
Number Of Leaves

In vitro micropropagation of plants is highly useful for obtaining large quantities of planting material with valuable economic qualities. However, plantlets grow in vitro in a specific environment and the adaptation after the transfer to ex vitro conditions is difficult. Therefore, the acclimatization is a key step, which mostly determines the success of micropropagation. The aim of this investigation was to study the effect of the biofertlizer Lumbrical on ex vitro acclimatization of micropropagated pear rootstock OHF 333 (Pyrus communis L.). Micropropagated and rooted plantlets were potted in peat and perlite (2:1) mixture with or without Lumbrical. They were grown in a growth chamber at a temperature of 22±2 °C and photoperiod of 16/8 hours supplied by cool-white fluorescent lamps (150 µmol m-2 s-1 Photosynthetic Photon Flux Density, PPFD). The plants were covered with transparent foil to maintain the high humidity, and ten days later, the humidity was gradually decreased. Biometric parameters, anatomic-morphological analyses, net photosynthetic rate and chlorophyll a fluorescence (JIP test) were measured 21 days after transplanting the plants to ex vitro conditions. The obtained results showed that the plants, acclimatized ex vitro in the substrate with Lumbrical, presented better growth (stem length, number of leaves, leaf area and fresh mass) and photosynthetic characteristics as compared to the control plants. This biostimulator could also be used to improve acclimatization in other woody species

scholarly journals Root initiation of bougainvillea from cuttings using different rooting hormones

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Okunlola A Ibironke
Keyword(s):  
Butyric Acid ◽  
Block Design ◽  
Coconut Water ◽  
Stem Length ◽  
Root Weight ◽  
Root Initiation ◽  
University Of Technology ◽  
Number Of Leaves ◽  
Level Of Significance ◽  
Stimulation Of

An experiment on stimulation of rooting of six Bougainvillea species using three different rooting hormones was conducted in the nursery, department of crop soil and pest management of the Federal University of Technology Akure, March to June, 2013. The experiment was laid out in Completely Block Design (CRD) and replicated three times. Data were collected on number of days to sprouting, plant height, stem girth, stem length, wet root weight, dry root weight, the number of leaves per cutting and length of longest roots and subjected to Analysis of variance (ANOVA) to determine the level of significance and Tukey Test was used to separate the means. The results showed that the Indole -3-butyric acid and the coconut water had significant effect on the root emergence and root growth of Bougainvillea species compared to the other hormones used and the hard wood cuttings enhanced the rooting of the Bougainvillea compared to the semi –hard wood. Therefore root initiation in cuttings of Boungainvillea could be enhanced with Indole -3-butyric acid (IBA) or dipped in coconut water for 5 minutes and growth was also enhanced using the hard wood cuttings.

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