scholarly journals CHARACTERIZATION OF SOME ALGERIANS AND FOREIGN LENTIL ACCESSIONS BY QUALITATIVE TRAITS

2018 ◽  
pp. 43-47
Author(s):  
DJOUHER GAAD, MERIEM LAOUAR ◽  
FATIMA GABOUN ◽  
AISSA ABDELGUERFI
Keyword(s):  
Growth Habit ◽  
Flower Color ◽  
Anthocyanin Pigmentation ◽  
Seed Shape ◽  
Qualitative Traits ◽  
Coat Pattern ◽  
Light Green ◽  
Prostrate Growth ◽  
Seed Coat Pattern

In the present study an attempt has been made to characterize lentil accessions based on qualitative traits. There were variations among 44 lentil accessions. Erect growth habit was observed in 24 % of the accessions where 8% were from Algeria. Conversely, prostrate growth habit was observed in 34% of the accessions. The majority of the remaining accessions (41.32%) were intermediate. Stem with anthocyanin pigmentation was showed in 44% of the accessions, whereas, 56% had no pigmentation (green stem). About half of the accessions had grey green leaves (53%) and 23% of accessions were light green. Among the characters, flower color showed the highest variation. White flowers were observed in 64% accessions and violet flowers were found in 36% accessions. Flowers, with violet stripes in the standard petal (SVE) were observed in 44% accessions and the majority (56%) lacked violet stripes. Yellow cotyledons were observed in 61% accessions, while the rest (39%) had red cotyledons. The majority of accessions (81%) were observed with brown testa while 14% were green and 5% had yellow testa. Absence of seed coat pattern was observed in 69% accessions. However, 8% accessions with spots, 5% with dots, 16% were marbled and the remaining 2% were complex. Flattened seed shape was observed in 60% of accessions. Conversely, globose shape was observed in 40% of the accessions, among of them 27% were from Algeria.

Advanced backcross strategy for alien introgression for productivity enhancing traits in chickpea (Cicer arietinum L.)

2016 ◽  
Author(s):  
R. K. Bhavyasree ◽  
Sarvjeet Singh ◽  
Inderjit Singh
Keyword(s):  
Cicer Arietinum ◽  
Seed Yield ◽  
Growth Habit ◽  
Recurrent Parent ◽  
Linkage Drag ◽  
Seed Shape ◽  
Cicer Arietinum L ◽  
Advanced Backcross ◽  
Record Data ◽  
Prostrate Growth

A chickpea (Cicer arietinum L.) cultivar, GPF2, was crossed with two accessions, EC556270 and ILWC21, of its wild relative C. reticulatum with the objective to introgress productivity enhancing traits from wild to cultivated chickpea. The F1s were backcrossed to cultivated parent to generate backcross derived generations and also selfed to generate F3 progenies. In BC1F1 and BC2F1 generations, plants showing superiority for fruiting branches, pods and seed yield over the recurrent parent were recovered. A set of 77 BC1F2 and F3 progenies along with recurrent parent was grown to record data on various morphological traits, yield components and seed yield were recorded. There was significant improvement in number of pods, number of primary and secondary branches and seed yield. Some BC1F2 progenies recorded 30-32% higher seed yield as compared to recurrent parent. Many backcross progenies were superior to the cultivated parent for more than one trait. It was observed that F2 and F3 progenies were inferior as compared to the backcross derived progenies due to the undesirable characters like prostrate growth habit, seed shape and dull seed colour which were inherited from the wild parent. Results showed that the wild donors contributed several positive alleles for yield and yield contributing traits. The study also suggested that one or two backcrosses are required to reduce linkage drag of undesirable traits from the wild donors.

scholarly journals Evaluation of the Genetic Variation of Cowpea Landraces (Vigna unguiculata) from Western Cameroon Using Qualitative Traits

2017 ◽  
Vol 9 (4) ◽  
pp. 508-514 ◽  
Author(s):  
Toscani NGOMPE-DEFFO ◽  
Eric Bertrand KOUAM ◽  
Honoré BEYEGUE-DJONKO ◽  
Mariette ANOUMAA
Keyword(s):  
Genetic Diversity ◽  
Genetic Variation ◽  
Growth Habit ◽  
Diversity Index ◽  
Diversity Indices ◽  
Crop Species ◽  
Qualitative Trait ◽  
Qualitative Traits ◽  
Leaf Hairiness

Characterization of the genetic diversity and analysis of the genetic relationship between accessions of a crop species is a key step in breeding superior cultivars. The main objective of the hereby study was to determine the genetic variation between 30 cowpea accessions collected throughout the eight divisions of the Western Region of Cameroon using qualitative traits. Phenotypic variation of these accessions was evaluated using diversity indices and cluster analyses. A total of twenty qualitative traits were used for the study. Fifteen of them (75%) were polymorphic, displaying each at least two phenotypic classes. The monomorphic characters were growth pattern, leaf color, leaf hairiness, plant hairiness and pod hairiness, each with only one phenotypic class. Results showed a relatively significant level of genetic diversity among the studied cowpea accessions. Overall, the average of the observed and effective number of phenotypic classes per qualitative trait were Na = 2.350 and Ne = 1.828 respectively. The Nei’s genetic diversity and the Shannon weaver diversity index were He = 0.369, ranging from zero (monomorphic trait) to 0.655 (growth habit) and H’ = 0.609, ranging from zero (monomorphic trait) to 0.996 (seed crowding), respectively. The dendrogram constructed from the twenty qualitative traits revealed 05 accessions clusters with the number of accessions in each cluster varying from one to eleven. Information obtained from this study is likely be useful for future cowpea breeding program.

scholarly journals Characterization of Pigeonpea Genotypes Based on DUS Traits

2021 ◽  
pp. 289-297
Author(s):  
M. S. Ranjani ◽  
P. Jayamani
Keyword(s):  
Tamil Nadu ◽  
Block Design ◽  
Morphological Characterization ◽  
Genetic Purity ◽  
Seed Shape ◽  
Qualitative Traits ◽  
Group I ◽  
Average Similarity ◽  
Breeding Programmes

The research entails morphological characterization of pigeonpea genotypes based on qualitative traits which aids in varietal description and ensure genetic purity. The study was conducted at the Department of Pulses, Tamil Nadu Agricultural University during kharif, 2019 and rabi, 2019-2020. The experiment was conducted in Randomized complete block design with two replications. The 68-short duration pigeonpea genotypes were characterized and grouped based on 17 qualitative traits. The morphological characterization revealed that, more variation was identified for traits viz., pattern of streaks on standard petal, plant height, seed colour, seed shape and seed size. Sixty - eight genotypes were subjected to cluster analysis and were grouped into four major clusters with an average similarity of 80%. The similarity coefficient ranged from 0.65 to 1.00. The cluster I consisted of 60 genotypes. Two sub-groups were formed from Cluster I. The sub-group I had 59 genotypes at 84 per cent similarity, whereas the sub-group II consisted of the genotype ICPL19050. Cluster II was made up of six genotypes. The cluster II was divided into two sub-groups at 84 per cent similarity. Clusters III and IV were solitary clusters, each with a single genotype. The characterization of genotypes with specific traits could be used to identify the genotypes, maintenance of genetic purity and to utilize in future breeding programmes.

scholarly journals Morphological characterization of lentil accessions: Qualitative characters

2013 ◽  
Vol 41 (2) ◽  
pp. 187-190
Author(s):  
S Roy ◽  
MA Islam ◽  
A Sarker ◽  
MR Ismail ◽  
MY Rafii ◽  
...  
Keyword(s):  
Seed Coat ◽  
Flower Colour ◽  
Morphological Characterization ◽  
Normal Green ◽  
Coat Pattern ◽  
Wide Variability ◽  
Qualitative Characters ◽  
Stem Colour ◽  
Seed Coat Pattern

Wide variability was observed for all the characters among 110 lentil accessions. Stem colour varied from normal green (45%) to purple (55%). Prominent and rudimentary tendrils were found in 60% and 40% of the accessions, respectively. Among the characters, flower colour showed the highest variation. White flower colour was observed in 49%, violet in 28%, white with blue veins in 20% accessions and the rest 3% were with blue flowers. Red cotyledon was shown by 90% while with yellow was shown by 10% of the accessions. Green, grey and brown seed coat was observed in 10, 66 and 24% of the accessions, respectively. Seed coat pattern with dots was found in 70% accessions and marbled seed coat pattern was shown by 15.5% while 14.5% did not show any seed coat pattern. DOI: http://dx.doi.org/10.3329/bjb.v41i2.13447 Bangladesh J. Bot. 41(2): 187-190, 2012 (December)

Growth and Branching Responses of Portulaca grandiflora to Foliar Applications of Chemical Growth Regulators

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 447c-447
Author(s):  
T.J. Banko ◽  
M.A. Stefani
Keyword(s):  
Growth Regulators ◽  
Growth Habit ◽  
Stem Elongation ◽  
Block Design ◽  
Shoot Elongation ◽  
Main Shoot ◽  
Randomized Complete Block Design ◽  
Portulaca Grandiflora ◽  
Prostrate Growth ◽  
Secondary Shoot

During container production of portulaca, growth of long, prostrate, sparsely branched stems makes handling of plants difficult, and reduces their commercial appeal. Growers prefer to minimize shoot elongation while increasing branching to provide a full, compact plant. The objectives of this study were to evaluate growth regulators for promotion of branching and inhibition of stem elongation. Container-grown plants ≈21 cm in diameter were treated with sprays of ProShear (benzylaminopurine) at 62.4, 125, and 250 ppm; Promalin (benzyaminopurine + gibberellins 4+7) at 125, 250, and 500 ppm; Atrimmec (dikegulac) at 250, 500, and 750 ppm; and Florel (ethephon) at 250, 500, and 750 ppm. These treatments were compared with untreated controls in a randomized complete-block design. Main shoot lengths were measured at 16, 31, and 51 days after treatment (DAT). Numbers of new shoot breaks were counted 16 DAT. The growth habit, that is, tendency to grow upright or prostrate, was also evaluated 16 DAT. The most-effective material for retarding primary shoot elongation and for stimulating secondary shoot development was ProShear. At 16 DAT, 250 ppm ProShear reduced shoot elongation by 25% compared to control plants. This treatment also increased the number of secondary shoot breaks by 143%. Promalin increased the number of new shoot breaks, but it also increased the lengths of all shoots. High rates of Florel and Promalin caused shoots to grow predominantly upright rather then prostrate. ProShear, however, caused more prostrate growth as rate increased.

scholarly journals Characterization of Cyanic Flower Color of Delphinium Cultivars.

2000 ◽  
Vol 69 (4) ◽  
pp. 428-434 ◽  
Author(s):  
Fumio Hashimoto ◽  
Mika Tanaka ◽  
Hiroko Maeda ◽  
Keiichi Shimizu ◽  
Yusuke Sakata
Keyword(s):  
Flower Color

scholarly journals Characterization of maturity and quality of Brazilian apirenic grapes in the São Francisco river Valley

2012 ◽  
Vol 32 (1) ◽  
pp. 26-33 ◽  
Author(s):  
Robson de Jesus Mascarenhas ◽  
Silvanda de Melo Silva ◽  
Maria Auxiliadora Coêlho de Lima ◽  
Rejane Maria Nunes Mendonça ◽  
Heinz Johann Holschuh
Keyword(s):  
Titratable Acidity ◽  
Soluble Solids ◽  
Minimum Diameter ◽  
Red Grapes ◽  
Berry Size ◽  
Large Clusters ◽  
Small Clusters ◽  
Light Green

The objective of this study was to characterize and correlate maturity and quality of the first varieties of Brazilian seedless grapes 'BRS Clara', 'BRS Linda', 'BRS Morena', and 'Advanced Selection 8' compared with the American variety 'Crimson Seedless' in compliance with the Brazilian Normative/2002 and export standards Advanced Selection 8' is dark reddish, has large clusters, and is a very large ellipsoid berry; 'BRS Morena' is black with medium sized clusters and large berry shaped as ellipsoid to globoid; 'BRS Linda' is light green and has large sized clusters; 'Crimson' is pink and has small clusters with berries varying from medium to large sizes and ellipsoid shaped; and 'BRS Clara' is green yellowish has medium sized clusters and small berry of elongated ellipsoid shape. All varieties evaluated meet the standard for domestic market established as berry size minimum diameter 12 mm. 'BRS Clara' does not meet the export requirements of diameter. Berries of the red grapes 'BRS Morena' and 'Crimson Seedless' are firmer. The pH, titratable acidity, and soluble solids meet the official standards. Larger clusters are less acidic and present higher soluble solids/titratable acidity ratios implying that they are the sweetest type when ripe.

Molecular and biochemical characterization of torenia flavonoid 3′-hydroxylase and flavone synthase II and modification of flower color by modulating the expression of these genes

Plant Science ◽  
2002 ◽  
Vol 163 (2) ◽  
pp. 253-263 ◽  
Author(s):  
Yukiko Ueyama ◽  
Ken-ichi Suzuki ◽  
Masako Fukuchi-Mizutani ◽  
Yuko Fukui ◽  
Kiyoshi Miyazaki ◽  
...  
Keyword(s):  
Biochemical Characterization ◽  
Flower Color ◽  
Flavone Synthase ◽  
Flavone Synthase Ii

Solution Growth and Crystallinity Characterization of Bulk 6H-SiC

2010 ◽  
Vol 645-648 ◽  
pp. 33-36 ◽  
Author(s):  
Nobuyoshi Yashiro ◽  
Kazuhiko Kusunoki ◽  
Kazuhito Kamei ◽  
Akihiro Yauchi
Keyword(s):  
Grown Crystal ◽  
Solution Growth ◽  
Growth Technique ◽  
Rocking Curve ◽  
Long Time ◽  
Crystal Seed ◽  
Koh Etching ◽  
Light Green ◽  
Solution Growth Technique

The stable long time growth with the use of Si -C-Ti ternary solution was realized　by improving the thermal condition during the growth. We have succeeded in obtaining a maximum 10 mm thick bulk 6H-SiC crystal, which is the largest bulk crystal ever obtained by the solution growth technique. The obtained crystal was free of cracks and exhibited a homogeneous light green color. The crystallinity of the grown crystal was characterized by X-ray rocking curve measurements using (0006) reflection and by the molten KOH etching. The mapping of the full width at half maximum (FWHM) revealed the average FWHM around 30 arc seconds and the minimal FWHM under 16 arc seconds. The etch pit density (EPD) was typically in the range between 104 and 105 cm-2, which was comparable to that of the crystal seed.

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