"STUDY OF THE VARIABILITY OF THE MAIN QUANTITATIVE CHARACTERS OF SOME HOMOZYGOUS ADVANCED TOMATO LINES"

Qualitative features of the secondary xylem of Licaria present a rather uniform structural profile. Constant differences in primarily quantitative characters lead to the formation of speeies groups wh ich loosely correspond to infrageneric sections based on floral and vegetative morphology. This subdivision is strongly corroborated by the highly variable secondary phloem structurc revealing considerable diversity in type and distribution of sc1erenchymatic tissues. Inorganic inclusions in the secondary xylem, crystals and silica, constitute an important diagnostic tool for differentiating certain species and species groups, but are hardly of importance in the bark.

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Successful Interspecific hybridization between mungbean (Vigna radiata L. Wilczek) and ricebean (V. umbellata (Thunb.) Ohwi and Ohashi)

Legume Research - An International Journal ◽

10.18805/lr-433 ◽

2018 ◽

Author(s):

Lestari Ujianto ◽

Nur Basuki ◽

Kuswanto . ◽

Astanto Kasno

Keyword(s):

Interspecific Hybridization ◽

Vigna Radiata ◽

Gene Action ◽

Female Parent ◽

Quantitative Characters ◽

Viable Seeds

Successful interspecific hybridization between several cultivars of mungbean (Vigna radiata) and ricebean (V. umbellata) was achieved using mungbean as the female parent. Hybridization was not achieved if ricebean was used as the female parent. Seeds of hybrids were viable and grew and developed normally, producing viable seeds. The gene action of all observed quantitative characters was partially dominant, implying that it should be possible to produce stable hybrids. The progeny had desirable characteristics of both parents suggesting that interspecific hybridization of the two species could be used to produce a new, superior cultivar.

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Morphological and molecular characterization of teosinte derived maize population

Indian Journal of Genetics and Plant Breeding (The) ◽

10.31742/ijgpb.79.4.4 ◽

2020 ◽

Vol 79 (04) ◽

Author(s):

Amarjeet Kumar ◽

N. K. Singh ◽

Sneha Adhikari ◽

Anjali Joshi

Keyword(s):

Molecular Characterization ◽

Quantitative Traits ◽

Morphological Characterization ◽

Linkage Groups ◽

Germplasm Enhancement ◽

Maize Germplasm ◽

Maize Population ◽

Quantitative Characters ◽

Morphological And Molecular Characterization

Germplasm enhancement seems to be an essential part of a breeding programme to improve resiliency, adaptability and productivity of the crops. To develop and diversify the maize germplasm, teosinte a wild relative of maize was integrated in crossing programme and BC1F4 lines were developed. Five BC1F4 lines along with teosinte and maize inbred DI-103 were characterised using quantitative characters and molecular markers. Morphological characterization was done with the help of visual parameters and quantitative traits and for molecular characterization fifty six SSR markers were used. SSR data were analysed with the help of software Mapmaker and twelve linkage groups were generated. Maximum allelic contributions from parent teosinte were found in the introgressed line AM-5 (53.4%) followed by AM-12 (48.9 %), whereas, least contribution of 34.1 % was found in AM-7. The maximum genetic distance among the introgressed lines was observed between AM-2 and AM-9 (0.75) followed by AM-2 and AM-7 (0.70), AM-7 and AM-9 (0.70). The maximum number of cob was found in AM-5 (5.00) followed by AM-2 (4.00). Grain yield per plant was found highest for AM-2 (100.00 g) followed by AM-12 (80.00 g), while, least value was observed for AM-7 (42.00 g). The results indicated differential parental contributions which leads to diversification in the progenies derived from diverse crosses in maize and further opined that such crosses seems to be essential for creating adapted germplasm to whom breeders are looking for.

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

Jurnal Teknologi ◽

10.11113/jt.v77.6368 ◽

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.

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Comparing phylogenetics and linear morphometrics to solve the generic assignment ofParabolinella?triarthroidesHarrington (Trilobita, Olenidae)

Journal of Paleontology ◽

10.1017/jpa.2017.60 ◽

2017 ◽

Vol 91 (5) ◽

pp. 919-932 ◽

Cited By ~ 1

Author(s):

Daniela S. Monti ◽

Viviana A. Confalonieri

Keyword(s):

Phylogenetic Analysis ◽

Morphological Traits ◽

Good Description ◽

Sister Group ◽

Integrative Approach ◽

Original Matrix ◽

Quantitative Characters ◽

Phylogenetic Framework ◽

Methodological Approaches ◽

Source Of Information

AbstractThe use of different methodological approaches together with an exhaustive qualitative study has helped to recognize important morphological traits to distinguish species in a systematic and phylogenetic framework.Parabolinella triarthroidesHarrington, 1938 was described based on two cranidia from the Quebrada de Coquena, Purmamarca, Jujuy province. The generic assignment ofP. triarthroideshas been questioned by a phylogenetic analysis, which resolves this species as the sister group ofBienvilliaClark, 1924. To explore the generic assignment of this species, a revision of the type material, plus a morphometric analysis including specimens ofParabolinellaBrøgger, 1882 andBienvilliawere performed. In addition, the original matrix used in the published phylogeny was reviewed and enlarged, including more species ofBienvillia. Continuous characters were coded in different ways in order to compare how they could affect the ordering of specimens and their phylogenetic relationships. Finally, both methodologies were compared, especially in regard to the behavior of the quantitative characters included in the analyses. From the combined analyses, it is shown that similarities between the cranidium ofP. triarthroidesand all otherParabolinellaspecies are true homologies instead of a by-product of evolutionary convergence. Therefore,P. triarthroidesshould be considered a member of this genus. Finally, this study demonstrates that the best strategy for solving systematic problems in groups where the morphological variation is the only source of information (i.e., fossil taxa without living representatives) is the implementation of an integrative approach, combining different methodological techniques and a good description of specimens.

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

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v35i3.6450 ◽

1970 ◽

Vol 35 (3) ◽

pp. 431-438 ◽

Cited By ~ 2

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

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Pollen morphology of the genus Eremanthus Less. (Vernonieae, Asteraceae)

Acta Botanica Brasilica ◽

10.1590/s0102-33062012000100006 ◽

2012 ◽

Vol 26 (1) ◽

pp. 46-57 ◽

Cited By ~ 5

Author(s):

BenoÎt Loeuille ◽

Raquel Maria Batista Souza-Souza ◽

Vanessa Holanda Righetti Abreu ◽

Cláudia Barbieri Ferreira Mendonça ◽

Vania Gonçalves-Esteves

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Pollen Morphology ◽

Additional Data ◽

Phylogenetic Reconstruction ◽

Pollen Grains ◽

Prolate Spheroidal ◽

Oblate Spheroidal ◽

Quantitative Characters ◽

Scanning Electron

In order to evaluate the significance of the pollen morphology for generic and infrageneric taxonomy of the genus Eremanthus (Vernonieae, Asteraceae), and to provide additional data for its phylogenetic reconstruction, the pollen of 20 of the 23 species of the genus was examined using light and scanning electron microscopy. Acetolysed pollen grains were measured, described, and illustrated using light microscopy, while non-acetolysed pollen grains were analyzed using scanning electron microscopy. Pollen grains of these species are isopolar, oblate-spheroidal in most of the species, more rarely prolate spheroidal or suboblate, subtriangular amb, tricolporate and subechinolophate. The variation among quantitative characters does not correlate with the macromorphological subdivision of the genus or with the generic or specific limits.

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