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Amaranthus sp (L.) collectively known as amaranth, is a cosmopolitan genus of herbs. Amaranth is ... more Amaranthus sp (L.) collectively known as amaranth, is a cosmopolitan genus of herbs. Amaranth is nutritionally rich non cereal crop capable of preventing malnutrition and identified as an alternative crop. Despite the increasing of economical importance of amaranth, limited information is available on genetic variability for the agronomic traits among cultivars. The aims of this work were to estimate yield components of each genotype viz. the variance components, phenotypic and genotypic coefficients, heritability and genetic advance (ga). The present studies was conducted at the University of Burdwan, Crop Research Farm during the month of August 2012 and were evaluated eight genotypes of Amaranthus sp .The study indicated existence of considerable amount of genetic variability for all the traits except leaf length in 60 days. PCV is highest in the character leaf plant / plant in 60 days and lowest in the character branch number/ plant in 90 days.The results stated that leaf / plan...

Electronic Journal of Plant Breeding, Dec 1, 2011

Abstract: Dianthus caryophyllus is an important floricultural crop in temperate climates and worl... more Abstract: Dianthus caryophyllus is an important floricultural crop in temperate climates and worldwide popular as cut-flowers for its variegated petal's colour. The development of this cultivar with more desirable floral characteristics and higher productivity are also very much important. Their identifications as well as taxonomy had been studied in the literatures using different laboratory methods. Both morphological and/or genetical characteristics were considered in the reported studies. However, to the best of our knowledge, there does not ...

Plant Sciences Feed, 2011

ABSTRACT Optimizing construction method selection strategies in an integrated decision support en... more ABSTRACT Optimizing construction method selection strategies in an integrated decision support environment: results of application to earthworks operations. Although the construction industry has witnessed a proliferation of techniques for resource selection, most of these techniques have not given adequate attention to the problems of cross utilisation of data. In practice, there remains the need for efficient use of construction data for various decision analysis problems within an integrated project management environment. This paper discusses the results of an application designed to address this problem in the area of resource selection. The results demonstrate the use of generic objective functions to generate some decision-making parameters in project management.

rspublication.com

... Chemical Mutagenesis Rajib Roychowdhury#1 and Jagatpati Tah#2 #1Centre for Biotechnology,Visv... more ... Chemical Mutagenesis Rajib Roychowdhury#1 and Jagatpati Tah#2 #1Centre for Biotechnology,Visva Bharati, Santiniketan-731235, West Bengal, India Email ID: rajibroychowdhurybu@gmail. com ... [28] AY Vasline, S.Vennila and J. Ganesan, Mutation – an alternate source of ...

Continental Journal …, 2012

The present study was conducted to evaluate mutant Carnation (Dianthus caryophyllus) genotypes to... more The present study was conducted to evaluate mutant Carnation (Dianthus caryophyllus) genotypes to assess the magnitude of genetic variability and to pick up the heritable component of variation for selection response of metrical traits. Mean data were subjected to analysis of variance (ANOVA) that revealed highly significant differences for all the characters studied and set up of a correlation matrix to analyze the stability capability by critical difference (CD) values and effect of mutagens for character improvement. Total number of leaves/plant was most stable due to its higher CD value; weight of 1000 seeds was highly variable with lower stability. It has been confirmed that 0.4% dose of all three mutagens was highly effective than other doses. The phenotypic and genotypic coefficient of variation (PCV & GCV) value shows the influence of the environmental effect on the characters. Highest GCV and PCV were noticed for total branches/plant and lowest for total flowers per plant. Heritability ranged from 46.77 (Days to seed germination) to 96.09 (Plant height at 50% flowering phase) per cent. Total number of leaves and branches showed high, seeds per inflorescence and days to branching showed moderate and plant height at 50% flowering showed low genetic advance with higher heritability. Thus, these traits may serve as an effective selection parameter and screening of promising mutant line (s) for crop improvement.

Dianthus caryophyllus is a worldwide popular cut-flower as per its floricultural impact. A high a... more Dianthus caryophyllus is a worldwide popular cut-flower as per its floricultural impact. A high agronomic demand related to its improved yield with several variations was noticed. For this, we undertook the mutation breeding programme in which selected viable seeds of Dianthus cultivar were treated with different doses of three chemical mutagens namely colchicine (Col), ethyl methane sulphonate (EMS) and maleic hydrazide (MH) to raising first mutant (M1) generation. Data on selected ten important agro-economic characters were recorded time to time for each treatment from seed germination to over-maturity period. Mean data were subjected to analysis of variance (ANOVA) and set up of correlation matrix to analyze the stability capability by critical difference (CD) values and effect of mutagens for character improvement. In M1 generation, total number of leaves/plant was most stable due to its higher CD value; weight of 1000 seeds was highly variable with lower stability; others were moderately stable and slightly varied. Among mutagens, colchicine and EMS showed positive and MH showed negative effects on characters to some extent when compared with control plant of without mutagenic treatment. It has been confirmed that 0.4% dose of all three mutagens was highly effective for better improvement of traits than other doses. These analyses will require further exercise for its stable confirmation and screening of promising mutant line (s) in M2 and subsequent generations.

African Crop Science Journal, 2011

Carnation (Dianthus caryophyllus) is a worldwide reputed cut-flower crop. The objective of the st... more Carnation (Dianthus caryophyllus) is a worldwide reputed cut-flower crop. The objective of the study was to estimate various genetic parameters like critical difference (CD), phenotypic and genotypic variance, phenotypic and genotypic coefficient of variation (PCV and GCV), broad sense heritability and genetic gain, etc. of Dianthus genotypes in order to assess the magnitude of variability for various agro-metrical characters.The study revealed highly significant differences for all the studied characters, indicating the presence of substantial genetic variability. The phenotypic coefficient of variation(PCV) was higher than its corresponding genotypic counterpart (GCV) for all characters studied. The highest GCV and PCV were evident in total branches per plant; and their lowest values for total number of flowers per plant along with plant height taken at 50% flowering phase. Broad sense heritability ranged from 33.33 (days to seed germination) to 95.30 (plant height at 50% flowering) per cent. Flowers per plant showed low genetic gain; hence, heterosis breeding would be recommended. These characters may serve as effective selection parameter in breeding programme for crop improvement.

Seed character is an important part of any crop plant. The seeds of Amaranthus hybridus (Family-A... more Seed character is an important part of any crop plant. The seeds of Amaranthus hybridus (Family-Amaranthaceae) are small in size and not possible to differentiate easily with naked eyes. A little work has been focused on seed morphology of Amaranthus hybridus but no specific work on seed micromorphology has yet been documented. Keeping all these views in mind, we have undertaken the venture for observing possible microfeatures under Scanning Electron Microscope (SEM). The micro-morphological typology of seed surfaces was investigated in eight accessions of Amaranthus hybridus using scanning electron microscopy. Morphological studies showed that seeds were either pyriform or sub-pyriform or sub-spherical in shape. Pleurogram was found on the seed surface in some accessions. The ornamentations of exo-testa were found to be either polygonal or reticular or crosslinked type or spindle shaped or scalariform or undulated lump with tertiary depositions or slits. The aim of this present stu...

Seed character is an important part of any crop plant. The seeds of Amaranthus hybridus (Family-A... more Seed character is an important part of any crop plant. The seeds of Amaranthus hybridus
(Family-Amaranthaceae) are small in size and not possible to differentiate easily with naked eyes.
A little work has been focused on seed morphology of Amaranthus hybridus but no specific work
on seed micromorphology has yet been documented. Keeping all these views in mind, we have
undertaken the venture for observing possible microfeatures under Scanning Electron Microscope
(SEM). The micro-morphological typology of seed surfaces was investigated in eight accessions of
Amaranthus hybridus using scanning electron microscopy. Morphological studies showed that
seeds were either pyriform or sub-pyriform or sub-spherical in shape. Pleurogram was found on the
seed surface in some accessions. The ornamentations of exo-testa were found to be either polygonal
or reticular or crosslinked type or spindle shaped or scalariform or undulated lump with tertiary
depositions or slits. The aim of this present study was to explore the seed characters which are
useful as a tool for identifying crop species and variations among those accessions too. The
micromorphological characteristics of the seed coats may provide valuable information for
identification of seeds.

Amaranthus sp (L.) collectively known as amaranth, is a cosmopolitan genus of herbs. Amaranth is ... more Amaranthus sp (L.) collectively known as amaranth, is a cosmopolitan genus of herbs. Amaranth is nutritionally rich non cereal crop capable of preventing malnutrition and identified as an alternative crop. Despite the increasing of economical importance of amaranth, limited information is available on genetic variability for the agronomic traits among cultivars. The aims of this work were to estimate yield components of each genotype viz. the variance components, phenotypic and genotypic coefficients, heritability and genetic advance (ga). The present studies was conducted at the University of Burdwan, Crop Research Farm during the month of August 2012 and were evaluated eight genotypes of Amaranthus sp .The study indicated existence of considerable amount of genetic variability for all the traits except leaf length in 60 days. PCV is highest in the character leaf plant/ plant in 60 days and lowest in the character branch number/ plant in 90 days.The results stated that leaf / plant in 60 days and branch number / plant in 90 days could be useful character for the improvement of amaranth breeding programme.

The modern agriculture science is in a position to solve the immediate problems for quantity as w... more The modern agriculture science is in a position to solve the immediate problems for quantity as well
as quality crop production. The seeds of Amaranthus hybridus was procured from the National
Bureau of Plant Genetic Resources (NBPGR) to explore the possibilities of its agronomic
potentiality in this tropical plains of West Bengal. Though a few leafy amaranths are being
cultivated since a long time, but the amaranths can meet up the demand of cereal as well as leafy
vegetables. Six accessions namely (i) IC 95609 ,(ii) IC 35482, (iii) IC 120617, (iv) IC 35626, (v) IC
9559 & (vi )IC 95589 were selected out of fifteen accessions. All these six accessions were grown
in the research field of the Crop Research Farm [CRF] following uniform agronomic measures. The
phenotypic variations were observed and exhibited in this context following proper statistical model.
The aims and objects of this experimentation was to highlight the phenotypic as well as genotypic
significance, component of variances ,heritability (in broad sense), genetic advance of each
accession over this particular location.
Keywords: Amaranthus hybridus, leafy Amaranth, heritability, genetic advance

Electronic Journal of Plant Breeding, Dec 1, 2011

Plant Sciences Feed, 2011

rspublication.com

Continental Journal …, 2012

African Crop Science Journal, 2011

Seed character is an important part of any crop plant. The seeds of Amaranthus hybridus (Family-A... more Seed character is an important part of any crop plant. The seeds of Amaranthus hybridus
(Family-Amaranthaceae) are small in size and not possible to differentiate easily with naked eyes.
A little work has been focused on seed morphology of Amaranthus hybridus but no specific work
on seed micromorphology has yet been documented. Keeping all these views in mind, we have
undertaken the venture for observing possible microfeatures under Scanning Electron Microscope
(SEM). The micro-morphological typology of seed surfaces was investigated in eight accessions of
Amaranthus hybridus using scanning electron microscopy. Morphological studies showed that
seeds were either pyriform or sub-pyriform or sub-spherical in shape. Pleurogram was found on the
seed surface in some accessions. The ornamentations of exo-testa were found to be either polygonal
or reticular or crosslinked type or spindle shaped or scalariform or undulated lump with tertiary
depositions or slits. The aim of this present study was to explore the seed characters which are
useful as a tool for identifying crop species and variations among those accessions too. The
micromorphological characteristics of the seed coats may provide valuable information for
identification of seeds.

Amaranthus sp (L.) collectively known as amaranth, is a cosmopolitan genus of herbs. Amaranth is ... more Amaranthus sp (L.) collectively known as amaranth, is a cosmopolitan genus of herbs. Amaranth is nutritionally rich non cereal crop capable of preventing malnutrition and identified as an alternative crop. Despite the increasing of economical importance of amaranth, limited information is available on genetic variability for the agronomic traits among cultivars. The aims of this work were to estimate yield components of each genotype viz. the variance components, phenotypic and genotypic coefficients, heritability and genetic advance (ga). The present studies was conducted at the University of Burdwan, Crop Research Farm during the month of August 2012 and were evaluated eight genotypes of Amaranthus sp .The study indicated existence of considerable amount of genetic variability for all the traits except leaf length in 60 days. PCV is highest in the character leaf plant/ plant in 60 days and lowest in the character branch number/ plant in 90 days.The results stated that leaf / plant in 60 days and branch number / plant in 90 days could be useful character for the improvement of amaranth breeding programme.