MORPHOLOGICAL AND CYTOLOGICAL IDENTIFICATION OF THE PRIMARY TRISOMICS OF LOTUS PEDUNCULATUS (LEGUMINOSAE)

1968 ◽  
Vol 10 (1) ◽  
pp. 161-179 ◽  
Author(s):  
Chi-Chang Chen ◽  
W. F. Grant
Keyword(s):  
Extra Chromosome ◽  
Diploid Species ◽  
Positive Correlation ◽  
Primary Trisomics ◽  
Qualitative And Quantitative ◽  
Quantitative Characters ◽  
Lagging Chromosome ◽  
Lotus Pedunculatus

Trisomics have been developed in the diploid species Lotus pedunculatus Cav. (2n = 12) by means of a series of hybridizations. From the progeny of crosses of triploids to the diploid and selfing triploids, 126 (62.38%) diploids, 73 (36.14%) simple trisomics, 2 (0.99%) double trisomics and 1 (0.49%) telosomic trisomic were obtained. The simple trisomic plants were classified into five distinct morphological groups named Round, Broad, Pointed, Narrow and Small according to their distinguishing leaflet characters. Each group differed from the others and from the diploid in a number of qualitative and quantitative characters. These differences were considered to be the result of a change in the genic balance of the plants which was brought about by the addition of the extra chromosome to the complement. The extra chromosomes of Round, Broad, Pointed, Narrow and Small were identified as chromosomes 1, 3, 4, 5, and 6, respectively. Although the frequency of cells with one trivalent varied within and between trisomic types, there was a positive correlation between length and trivalent formation. It is considered that longer chromosomes have a greater chance of forming chiasmata with more than one homologue than shorter ones. The frequency of lagging chromosomes at AI and/or TI was not correlated with the frequency of univalents at diakinesis. No particular trend was apparent as to which extra chromosome, when present as a lagging chromosome, tended to divide more frequently than another chromosome of the complement.

TRISOMICS OF AVENA STRIGOSA

1975 ◽  
Vol 17 (2) ◽  
pp. 151-166 ◽  
Author(s):  
Tibor Rajhathy
Keyword(s):  
Transmission Rate ◽  
Extra Chromosome ◽  
Chromosome Length ◽  
Chromosome Morphology ◽  
Balance Theory ◽  
Primary Trisomics ◽  
Qualitative And Quantitative ◽  
Dosage Effects ◽  
Avena Strigosa ◽  
Small Seed

A set of seven primary trisomics and seven derived types were produced in Avena strigosa Schreb., a diploid oat species. Each trisomic type had a distinct phenotype. The primary trisomics were identified on the basis of plant and chromosome morphology. Although fertility (seed-set) and the frequency of transmission of the extra chromosome varied among selfed progenies of the various trisomics, each trisomic can be maintained. The trisomics occurred at a higher frequency in small seed fractions than in samples of large seeds. No straightforward relationship was apparent between chromosome length and trivalent formation but some association between trivalent formation and transmission rate was observed.Several qualitative and quantitative traits were compared between the primary telotri-somics, between these and the disomic and between opposite arm telotrisomics and their corresponding primary trisomic. It was concluded that the results are more compatible with dosage effects than with the gene balance theory.

NUMERICAL ANALYSES OF LEAF AND FRUIT EXTERNAL MORPHOLOGY IN Moringa oleifera LAM

2015 ◽  
Vol 77 (13) ◽  
Author(s):  
Daniel Andrawus Zhigila ◽  
Sulaiman Mohammed ◽  
Felix Ayodele Oladele ◽  
Fatima B. J. Sawa
Keyword(s):  
Moringa Oleifera ◽  
Crop Improvement ◽  
Morphological Diversity ◽  
External Morphology ◽  
Numerical Analyses ◽  
Qualitative And Quantitative ◽  
Quantitative Characters ◽  
Diversity Assessment ◽  
Wide Range ◽  
Improvement Programme

The wide range of uses of Moringa oleifera in recent time has witnessed increasing demand of its foliar and seed products in nutritional, medical and ecological applications. The upsurge of demand for these products needs to be balanced with new varieties of improved performance to meet the supply chain. To achieve this, morphological diversity assessment is prerequisite for future crop improvement programme. Therefore, numerical analyses of the external morphology of leaf and fruit of thirty accessions of Moringa oleifera were assessed. The study was carried out on both qualitative and quantitative characters to assess the diversity at morphological level to establish the phenetic relationships and the delimitation of accessions. Relationship studies showed considerable correlation between the leaf and fruits characters that produced clear and reproducible threats and were selected for diversity study. Numerical analysis of the qualitative and quantitative characters clustered the accessions into five groups – operational taxonomic units (OTUs) 1, 2, 3, 4, 5, 7, 9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30 were clustered in group one; OTUs 6 and 8 were clustered in group two and three respectively; OTUs 15 and 16 in group four and OUT 23 in group five cluster membership. Principal Component Analysis was carried out to augment the Cluster Analysis which showed large morphological diversity existing in accessions of Moringa oleifera hence, infraspecific classification is hereby proposed.  These analysis particularly traits related to leaf and fruits yield can also be utilised for crop improvement programme.

scholarly journals Physico-morphological variation in hyacinth bean [Lablab purpureus (L.) Sweet]

1970 ◽  
Vol 35 (3) ◽  
pp. 431-438 ◽  
Author(s):  
MS Islam ◽  
MM Rahman ◽  
T Hossain
Keyword(s):  
Seed Weight ◽  
Lablab Purpureus ◽  
Early Variety ◽  
Leaf Petiole ◽  
Qualitative And Quantitative ◽  
Green Seed ◽  
Pod Yield ◽  
Quantitative Characters ◽  
Physical Traits ◽  
Hyacinth Bean

Forty-four hyacinth bean genotypes were evaluated for different qualitative and quantitative characters during July 2005 to February 2006 at Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur. The genotypes showed considerable variations for most of the morpho-physical traits. Shape, size and colour of vein, leaf, petiole, stem, flower, pod and seed varied among the genotypes. Days to first flower ranged from 47.6 to 136.3 days indicating the presence of early variety. Individual pod weight varied from 1.47 (HB042) to 12.3g (HB009). The genotype HB027 produced the maximum number of pods/ plant (425) closely followed by HB001 (385). Similar trend was observed for pod yield/plant. The genotype HB027 produced the highest pod yield/plant (3.45kg) followed by HB001 (3.35kg). 100-green seed weight ranged from 4.0g to 73.33g, which indicated the presence of bold seeded genotypes. Among the genotypes, HB027 and HB007 produced very bold green seed and higher green pod yield/plant, therefore, they can be selected for both pod and green seed production purpose. Keywords: Physico-morphological; hyacinth bean DOI: 10.3329/bjar.v35i3.6450Bangladesh J. Agril. Res. 35(3) : 431-438

Preparation of Sub-Criteria for Mathematical Modeling of Multi-Criteria Decision Making

2014 ◽  
Vol 1020 ◽  
pp. 765-768
Author(s):  
Eva Berankova ◽  
František Kuda ◽  
Stanislav Endel
Keyword(s):  
Decision Making ◽  
Public Service ◽  
Input Data ◽  
Decision Making Process ◽  
Multi Criteria Decision Making ◽  
Individual Selection ◽  
Qualitative And Quantitative ◽  
Data Analyses ◽  
Quantitative Characters ◽  
The Subject

The subject of this paper is to evaluate criteria in the decision-making process for choosing new usable office facilities in light of a big company or public service seeking for new usable office facilities. The criteria defining the requirements for individual selection variants enter into this decision-making process. These criteria have qualitative and quantitative characters. In order to model the criteria, it is desirable that their values are standardized. The method of standardization of these criteria is given in this paper. In this paper, attention is paid to the decision-making process in the course of choosing new usable facilities in administration objects. This decision-making process is based on input data analyses and on conclusions for a certain selection variant resulting from them.

scholarly journals Seed micromorphological study on endemic and subendemic species of Veronica L. (Plantaginaceae Juss.) in Iran

2019 ◽  
Vol 26 (2) ◽  
pp. 315-324
Author(s):  
Soghra Ramzi ◽  
Shahryar Saedi-Mehrvarz
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Seed Coat ◽  
Seed Morphology ◽  
Seed Shape ◽  
Sem Micrographs ◽  
Qualitative And Quantitative ◽  
Quantitative Characters ◽  
Micromorphological Characters ◽  
Scanning Electron

Seed morphology of 12 Iranian endemic and subendemic species of Veronica was studied using scanning electron microscope (SEM). Seven qualitative and quantitative characters were measured using SEM micrographs and stereomicroscopy. The seed shape of most species is ovate and plano-convex. The size of seeds ranges from 1.25 x 0.75 mm in V. khorassanica to 2.5 x 1.75 mm in V. viscosa Boiss. The ornamentation of seed coat is reticulate-verrucate in V. khorassanica, V. czerniakowskiana, V. mazanderanae and V. rubrifolia, reticulate-rugate in V. acrotheca, V. aucheri, V. viscosa and V. intercedens, rugose in V. microcarpa, V. chionantha and V. rechingeri, and reticulate-porate in V. gaubae. The testa cells are polygonal in ten species and irregular in two species. Micromorphological characters of seeds are useful in specific and subspecific delimitations of Iranian Veronica.

GENETICS OF A PRIMARY TRISOMIC SERIES IN BARLEY: IDENTIFICATION BY PROTEIN ELECTROPHORESIS

1970 ◽  
Vol 12 (3) ◽  
pp. 490-495 ◽  
Author(s):  
R. G. McDaniel ◽  
R. T. Ramage
Keyword(s):  
Extra Chromosome ◽  
Seed Proteins ◽  
Disc Electrophoresis ◽  
Protein Electrophoresis ◽  
Primary Trisomics

Disc electrophoresis of seed proteins identified the extra chromosome involved in primary trisomics of barley. Each of the seven primary trisomics could be distinguished from diploids and from each other. Electrophoresis provided a precise biochemical criterion for identification of trisomics.

scholarly journals Characterization and Field Performance of 15 Strawberry Germplasm under Bangladesh Conditions

2014 ◽  
Vol 11 (2) ◽  
pp. 81-94 ◽  
Author(s):  
M Moshiur Rahman ◽  
M Mizanur Rahman ◽  
M Mofazzal Hossain ◽  
MA Khaleque Mian ◽  
Q Abdul Khaliq
Keyword(s):  
Plant Height ◽  
Fruit Set ◽  
Pollen Viability ◽  
Field Performance ◽  
Viable Pollen ◽  
Days To Flowering ◽  
Qualitative And Quantitative ◽  
Quantitative Characters ◽  
Number Of Leaves

Fifteen strawberry germplasm collected from local and exotic sources were evaluated for different qualitative and quantitative characters. The germplasm showed variation for majority of the studied traits. Plant height during peak harvest ranged from 14.67 to 25.00 cm and FA 007 exhibited the tallest plants. The maximum number of leaves plant-1 was produced by FA 006 (46.67). The maximum number of runners plant-1 was obtained in FA 003 (68.67) followed by FA 004 (63.00), while the highest number of crown plant-1 was found in FA 007 (15.33) followed by FA 006 (14.67). Days to flowering varied from 48.33 to 102.30 among the germplasm and FA 008 required minimum (48.33) days for flowering. The germplasm FA 004 produced the highest number of flower trusses (35.50 plant-1) while it was the lowest in FA 010 (5.00 plant-1). The number of flowers plant-1 was found maximum in FA 003 (168.00 plant-1) and minimum in FA 010 (40.00 plant-1). Among the germplasm pollen viability varied significantly and maximum viable pollen was recorded in FA 010 (84 %), while it was lowest in FA 004 (12.00 %). The highest per cent fruit set was recorded in BARI Strawberry-1 (86 %) while, FA 013 (39 %) showed the lowest. Among the germplasm the highest yield plant-1 was recorded from FA 005 (737.70 g) followed by FA 006 (702.30 g) and was significantly higher than others while the lowest yield plant-1 was recorded from FA 013 (52.00 g), FA 014 (69.00 g), FA 009 (81.33 g) and FA 010 (121.30 g). DOI: http://dx.doi.org/10.3329/sja.v11i2.18404 SAARC J. Agri., 11(2): 81-94 (2013)

scholarly journals Phenotypic and Genetic Study on Native Pigeonpea Germplasm of Chhattisgarh for Yield Attributing Traits

2021 ◽  
pp. 201-212
Author(s):  
Vipin Kumar Pandey ◽  
M. K. Singh ◽  
Prakriti Meshram ◽  
Vishal Kumar Gupta ◽  
Namita Singh ◽  
...  
Keyword(s):  
Seed Protein ◽  
Pigeon Pea ◽  
Morphological Characters ◽  
Flowering Plant ◽  
P Value ◽  
College Of Agriculture ◽  
Qualitative And Quantitative ◽  
Quantitative Characters ◽  
Coefficients Of Variation ◽  
The Mean

Aims: To find out genetic variation of pigeon pea Germplasms population on Chhattisgarh, with H. armigera, M. vitrata Larvae Population. Study Design: Augmented RBD Design in 4 block with 3 check varieties. Place and Duration of Study: College of Agriculture Raipur, IGKVV, Chhattisgarh. During Kharif 2019-2020. Methodology: The experimental materials were used 100 local landraces of Pigeonpea and three popular standard checks. The Morphological observations on various agro-morphological characters including qualitative and quantitative characters and Incidence of major insects of Pigeonpea were recorded. Results: outcome of the study reviled that Incidence of major insect of Pigeonpea 10 genotypes of pigeonpea are resistant and 10 are susceptible occurred. Analysis of variance indicated that the mean sum of squares due to genotypes were highly significant for all the characters with p-value of 0.001 and some traits check varieties 0.001. Results of genetic variability analysis state that’s highest genetic advance as percent of the mean for traits are days to fifty percent flowering, plant height, seed protein content, and days to maturity. Conclusion: The Pigeonpea accession used in the study revealed significant variability for most of the morphological traits. Amongst the genotypes studied, high coefficients of variation were observed for most of the characters studied indicating the existence of sufficient variability.

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