Arup Chattopadhyay - Academia.edu (original) (raw)

Papers by Arup Chattopadhyay

Research paper thumbnail of Characterization of growth and yield parameters and nutritional profiling of new potato clones

International Journal of Vegetable Science, May 22, 2023

Research paper thumbnail of Fruit and Vegetable Wastes as Livestock Feeds

Research paper thumbnail of Inheritance pattern of okra enation leaf curl disease among cultivated species and its relationship with biochemical parameters

Journal of Genetics

Okra production in eastern India at present is severely threatened by whitefly-mediated okra enat... more Okra production in eastern India at present is severely threatened by whitefly-mediated okra enation leaf curl disease (OELCuD). Identification of resistant genotype and understanding the genetic control and biochemical relationship of OELCuD resistance are prerequisite for developing an effective breeding strategy. This study was conducted employing six populations (P 1 , P 2 , F 1 , F 2 , BC 1 and BC 2) of two selected (resistant 9 susceptible (R9S)) crosses. Associationship between severity of OELCuD and biochemical parameters of parents and hybrids at preflowering and flowering stages was studied. Segregation pattern of the genotypes in F 2 generation showing OELCuD reaction of two crosses suggested that two duplicate recessive genes was operative for resistance to OELCuD. Generation mean analysis revealed involvement of both additive and nonadditive effects in the inheritance of disease resistance. Hence, postponement of selection in later generations or intermating among the selected segregates followed by one or two generations of selfing to break the undesirable linkage and allow the accumulation of favourable alleles could be suggested for the development of stable resistant genotype against this disease. Higher peroxidase activity and total phenol content in leaf emerged as reliable biochemical markers for early selection of genotype resistant to OELCuD.

Research paper thumbnail of Genetic expression of reproductive and fruit quality traits in snap melon (Cucumis melo var. momordica L.)

Research paper thumbnail of Performance of eggplant cultivars grafted on wild and cultivated rootstocks in bacterial wilt infected field

International Journal of Vegetable Science

Research paper thumbnail of Double cross hybrids could substantially supersede single cross hybrids for yield, fruit quality and tolerance to tomato leaf curl virus disease

International Journal of Vegetable Science

Research paper thumbnail of Diversity of nutrient and nutraceutical contents in the fruits and its relationship to morphological traits in bitter gourd (Momordica charantia L.)

Research paper thumbnail of Bidhan Chilli-4: New dual purpose chilli variety

Indian horticulture, Apr 5, 2021

Research paper thumbnail of Bidhan Sadabahar: A bushy cowpea variety resistant to cowpea aphid borne mosaic virus

Indian horticulture, Nov 16, 2020

Research paper thumbnail of Yellow Vein Mosaic Virus Disease in Okra (Abelmoschus esculentus L. Monech): Its genetic control and relationship with the biochemical parameters

Not AvailableThe yellow vein mosaic virus (YVMV) is one of the most serious diseases in okra prod... more Not AvailableThe yellow vein mosaic virus (YVMV) is one of the most serious diseases in okra production, often causing severe losses in commercial fields. Identifying and deploying resistant genotypes and understanding the inheritance of YVMV disease resistance are essential for the okra geneticists to develop an effective breeding strategy. Genetic control of the host resistance to YVMV disease of okra was studied employing six generations (P1, P2, F1, F2, BC1, BC2) of three selected crosses: Tolerant × Tolerant (T × T), Tolerant × Susceptible (T × S) and Susceptible × Susceptible (S × S) among two tolerant and susceptible genotypes. Relationship between disease reaction and different biochemical parameters of the parents and hybrids at three phenological stages (Pre-flowering, flowering and post-flowering) was studied. The inheritance study amply indicated that tolerance to YVMV disease was conditioned by two duplicate dominant genes in Tolerant × Tolerant cross, and by two complementary dominant genes in Tolerant × Susceptible cross. The significant scaling tests and joint scaling test also indicated the presence of digenic epistasis for both the disease reaction characters. The study also suggested that tolerant genotypes appeared in the progeny of even Tolerant × Susceptible cross. Some of the enzyme activities (peroxidase and polyphenol oxidase) and proximate compositions (total phenol and ascorbic acid) in okra leaf exhibited consistent and significant negative correlation with PDI of YVMV disease even over the growth stages suggesting their implication as selection indices for identification of genotype tolerant to YVMV disease. The results suggested modified bulk method of breeding through deferred selection after attaining homozygosity for maximum heterozygous loci.Not Availabl

Research paper thumbnail of Effect of growth substances on the expression of flowering and study on pollen viability of hermaphrodite & male ower in the female clone "Mondouri local" of Teasle gourd (Momordica subangulata Blume. subsp. renigera)

South Asian journal of experimental biology, Jan 14, 2019

<jats:p>Foliar sprays with gibberellic acid (GA) and silver nitrate (AgNO3) of di erent con... more <jats:p>Foliar sprays with gibberellic acid (GA) and silver nitrate (AgNO3) of di erent concentra ons at pre-flowering stage induced hermaphrodite and male owers on strictly gynoecious vines of teasle gourd (Momordica subangulata Blume. subsp. renigera). GA at 1500 ppm and AgNO3at 500 ppm were effective inducing more than 50% male owers in the female clone "Mondouri local". AgNO3 at 750 ppm was effective in inducing 36.6% male and 33.9% hermaphrodite owers on same plant. The hermaphrodite ower had higher pollen size (103.57 μm) compared to that of natural male ower (94.94 μm). However, there existed no variation between pollen viability of bisexual ower (81.6%) and normal male ower (89.1%). However, germinability of the pollen of hermaphrodite ower was very low (14.16%) producing very small pollen tube (9 μm), though the bisexual ower did not produce any fruit on self-pollination. </jats:p>

Research paper thumbnail of Qualitative and Quantitative Aspects of Teasle Gourd Genotypes

International Journal of Vegetable Science, 2017

ABSTRACT Plant morphology is widely adaptive. Phenotypic differentiation among genotypes reflects... more ABSTRACT Plant morphology is widely adaptive. Phenotypic differentiation among genotypes reflects a balance between natural selection in the local environment, migration of alleles via gene flow, and, at a lower frequency, the acquisition of novel traits through mutation. Teasle gourd [Momordica subangulata Blume subsp. renigera (G. Don) de Wilde] is a rich source of antioxidant vitamins and a raw material for commercial extraction of neutraceuticals. Extensive collection and characterization for evaluation of superior genotypes are important in improvement. The aim of the study was to evaluate genetic diversity of accessions through genetic components analyses, and genetic divergence by multivariate analysis and principal component analysis (PCA). Wide variation occurred for 13 qualitative and 19 quantitative characters. Number of fruit/plant and fruit weight was identified as the most important selection indices for improvement of yield. Based on determination of divergence, the 18 genotypes could be grouped into seven clusters. Geographical diversity was not adequate as an index of genetic diversity. Based on PCA and average values, genotypes “BCTG-1,” “BCTG-2,” and “BCTG-4” possessed optimum combinations of all variables. Inter-mating between these female clones by inducing staminate, or hermaphrodite, flowers with application of growth substances may be an alternative breeding method for teasle gourd. Desirable characters in hybrids as new varieties can be fixed indefinitely through clonal propagation within a short period of time.

Research paper thumbnail of Export of Onion, Garlic and Chilli: Three Essential Spices in Daily Kitchen

India is known as “The Home of Spices”. No Indian meal is considered complete without the tangy a... more India is known as “The Home of Spices”. No Indian meal is considered complete without the tangy and delectable flavor of Indian Spices, locally known as “Masala”. Indian spices are famous all over the world for their gastronic value to possess high medicinal values. Specialized commodity trading is gaining momentum in many parts of India. Vast export potential exists in India for fresh and different processed products of vegetables. Among vegetables, onion contributes the largest exportable commodities in India. India ranks third in export of fresh onion, next to Netherlands and Spain in the world and export of fresh onion from India is channelized through NAFED. Major importers of fresh onion from India are Gulf countries, Malaysia, Singapore, Sri Lanka and Bangladesh. Fresh onion export from India shares 8.98% of the total export earnings from agriculture sector in 2014–15. Garlic has been exporting from India for many years to the major importing countries like Qatar, Saudi Arabi...

Research paper thumbnail of Applied mutagenesis could improve economically important traits in bitter gourd (Momordica charantia L.)

Journal of Genetics

Mutants with unique characters have played a key role in discovery of gene, mapping, functional g... more Mutants with unique characters have played a key role in discovery of gene, mapping, functional genomics and breeding in many vegetable crops, but information on bitter gourd is lacking. Induction of mutation by gamma rays (Co 60 source) at five different doses (50 Gy, 100 Gy, 150 Gy, 200 Gy and 250 Gy) was studied in four widely divergent bitter gourd genotypes BG-1346501, Meghna-2, Special Boulder and Selection-1 in M 1 generation. Reduction in seed germination percentage, vine length and pollen fertility occurred in M 1 generation with the increasing doses of mutagens. LD 50 dose for BG-1346501, Meghna-2, Special Boulder and Selection-1 corresponded to 290.76 Gy, 206.12 Gy, 212.81 Gy and 213.49 Gy γ radiation, respectively suggested low to medium doses (200–250 Gy) of gamma rays would be helpful in producing useful and exploitable mutants for further breeding. No remarkable effect of γ radiation on fruit physico-chemical characters in M 1 generation were observed. M 2 generation, raised from two widely divergent genotypes, BG-1346501 and Meghna-2, were screened critically and observed no significant reduction in seed germination and pollen viability, however little damage occurred particularly in vine length. There is possibility of isolating segregates in M 2 generation with enhanced nutrient contents at low radiation dose. Highest mutation frequency resulted by treating Meghna-2 at 200 Gy and BG-1346501 at 100 Gy. Both genotype and mutagenic doses influenced mutagenic effectiveness. Spectrum of mutation was very low; number of putative mutants isolated from M 2 generation was five in Meghna-2 and three in BG-1346501. Among six putative macro mutants isolated from M 3 generation, we could identify two putative mutants, namely Meghna-2 with gynoecious sex form and BG-1346501 with high charantin, appreciable β-carotene and high ascorbic acid contents having ample promise for further utilization in bitter gourd breeding after critical testing in subsequent generations for estimation of genetic gain and trait heritability to confirm the mutant stability.

Research paper thumbnail of Radio-sensitivity of diverse tomato genotypes with respect to optimization of gamma irradiation dose

Brazilian Journal of Botany

Research paper thumbnail of Competitive functions with production efficiency in brinjal based intercropping systems

Competitive behaviour of intercrops in different brinjal based intercropping systems under the Ga... more Competitive behaviour of intercrops in different brinjal based intercropping systems under the Gangetic alluvial zone of West Bengal was investigated in a field study conducted for two consecutive years. Field experiments was carried out with 7 treatments [T1 (Sole Brinjal), T2 (Brinjal + Cowpea), T3 (Brinjal + Garlic), T4 (Brinjal + Fenugreek), T5 (Brinjal + Onion), T6 (Brinjal + Coriander), T7 (Brinjal + French bean)] following randomized block design with three replications. The results indicated that maximum production efficiency was observed in brinjal + French bean (222.78 kg/ha/day). Intercropping of brinjal with French bean was found promising for better utilization of biological resources as it recorded maximum values for LER (2.68), and desirable lower values of aggressivity (0.15). However, brinjal + cowpea was found maximum for RCC (2.49), and brinjal + onion had maximum monetary advantage index (208.29).

Research paper thumbnail of Genetic control of qualitative and quantitative traits in bell pepper crosses involving varied fruit colors and shapes

International Journal of Vegetable Science, 2022

Research paper thumbnail of Economics of Solanaceous vegetables in the Gangetic alluvial of West Bengal during autumn-winter season

An attempt has been made on the economics of three major Solanaceous vegetable crops (tomato, bri... more An attempt has been made on the economics of three major Solanaceous vegetable crops (tomato, brinjal and chilli) grown in West Bengal with their respective cost component analysis and economic return on the basis of the information gathered from ten progressive vegetable growers from three districts selected at random and purposively. Through detailed survey and questionnaire, break up of cost components for each vegetable along with their operational cost and farm harvest price have been collected. It could be determined that cultivating one hectare of brinjal with open pollinated local cultivar, hybrid tomato and chilli with open pollinated local cultivar a farmer gets a minimum return of 2.46/-, Rs. 3.14/- and Rs. 1.27/-, respectively by spending one rupee for cultivation. It is concluded from the present study that during autumn-winter season in West Bengal the cultivation of hybrid tomato is the most remunerative activity, which is closely followed by brinjal. However, brinjal...

Research paper thumbnail of Breeding tomato (Solanum lycopersicum L.) for higher productivity and better processing qualities

Sabrao Journal of Breeding and Genetics, 2012

Research paper thumbnail of Applied mutagenesis in tomato for the isolation of mutants of enhanced fruit quality

Journal of Pharmacognosy and Phytochemistry, 2017

Spontaneous or induced mutants, with desirable changes in particular characters have been a key m... more Spontaneous or induced mutants, with desirable changes in particular characters have been a key material for gene discovery, mapping, functional genomics and breeding in many crops including tomato. The present investigation was undertaken to study the frequency and spectrum of macro-mutations of gamma rays, EMS and their combinations in “Patharkutchi,” the highly adaptable and popular cultivar of West Bengal. The dry seeds were irradiated with 50, 100, 150, 200 and 250 Gy gamma rays. Pre-soaked seeds of this genotype (6 h, in water) were treated with 0.05, 0.10, 0.15, 0.20 and 0.25% ethyl methane sulphonate (EMS) for 8 h at 25 ± 2 C. Gamma irradiated seeds of this genotype were also pre-soaked (6 h, in water) before treating with 0.15 % EMS solution for 8 h at 25 ± 2 C as combination treatment. Combination of gamma radiation and EMS caused more damage followed by EMS treatment and gamma radiation, alone in M1 generation. Gamma irradiation (50-150 Gy) was most efficient followed by ...

Research paper thumbnail of Characterization of growth and yield parameters and nutritional profiling of new potato clones

International Journal of Vegetable Science, May 22, 2023

Research paper thumbnail of Fruit and Vegetable Wastes as Livestock Feeds

Research paper thumbnail of Inheritance pattern of okra enation leaf curl disease among cultivated species and its relationship with biochemical parameters

Journal of Genetics

Okra production in eastern India at present is severely threatened by whitefly-mediated okra enat... more Okra production in eastern India at present is severely threatened by whitefly-mediated okra enation leaf curl disease (OELCuD). Identification of resistant genotype and understanding the genetic control and biochemical relationship of OELCuD resistance are prerequisite for developing an effective breeding strategy. This study was conducted employing six populations (P 1 , P 2 , F 1 , F 2 , BC 1 and BC 2) of two selected (resistant 9 susceptible (R9S)) crosses. Associationship between severity of OELCuD and biochemical parameters of parents and hybrids at preflowering and flowering stages was studied. Segregation pattern of the genotypes in F 2 generation showing OELCuD reaction of two crosses suggested that two duplicate recessive genes was operative for resistance to OELCuD. Generation mean analysis revealed involvement of both additive and nonadditive effects in the inheritance of disease resistance. Hence, postponement of selection in later generations or intermating among the selected segregates followed by one or two generations of selfing to break the undesirable linkage and allow the accumulation of favourable alleles could be suggested for the development of stable resistant genotype against this disease. Higher peroxidase activity and total phenol content in leaf emerged as reliable biochemical markers for early selection of genotype resistant to OELCuD.

Research paper thumbnail of Genetic expression of reproductive and fruit quality traits in snap melon (Cucumis melo var. momordica L.)

Research paper thumbnail of Performance of eggplant cultivars grafted on wild and cultivated rootstocks in bacterial wilt infected field

International Journal of Vegetable Science

Research paper thumbnail of Double cross hybrids could substantially supersede single cross hybrids for yield, fruit quality and tolerance to tomato leaf curl virus disease

International Journal of Vegetable Science

Research paper thumbnail of Diversity of nutrient and nutraceutical contents in the fruits and its relationship to morphological traits in bitter gourd (Momordica charantia L.)

Research paper thumbnail of Bidhan Chilli-4: New dual purpose chilli variety

Indian horticulture, Apr 5, 2021

Research paper thumbnail of Bidhan Sadabahar: A bushy cowpea variety resistant to cowpea aphid borne mosaic virus

Indian horticulture, Nov 16, 2020

Research paper thumbnail of Yellow Vein Mosaic Virus Disease in Okra (Abelmoschus esculentus L. Monech): Its genetic control and relationship with the biochemical parameters

Not AvailableThe yellow vein mosaic virus (YVMV) is one of the most serious diseases in okra prod... more Not AvailableThe yellow vein mosaic virus (YVMV) is one of the most serious diseases in okra production, often causing severe losses in commercial fields. Identifying and deploying resistant genotypes and understanding the inheritance of YVMV disease resistance are essential for the okra geneticists to develop an effective breeding strategy. Genetic control of the host resistance to YVMV disease of okra was studied employing six generations (P1, P2, F1, F2, BC1, BC2) of three selected crosses: Tolerant × Tolerant (T × T), Tolerant × Susceptible (T × S) and Susceptible × Susceptible (S × S) among two tolerant and susceptible genotypes. Relationship between disease reaction and different biochemical parameters of the parents and hybrids at three phenological stages (Pre-flowering, flowering and post-flowering) was studied. The inheritance study amply indicated that tolerance to YVMV disease was conditioned by two duplicate dominant genes in Tolerant × Tolerant cross, and by two complementary dominant genes in Tolerant × Susceptible cross. The significant scaling tests and joint scaling test also indicated the presence of digenic epistasis for both the disease reaction characters. The study also suggested that tolerant genotypes appeared in the progeny of even Tolerant × Susceptible cross. Some of the enzyme activities (peroxidase and polyphenol oxidase) and proximate compositions (total phenol and ascorbic acid) in okra leaf exhibited consistent and significant negative correlation with PDI of YVMV disease even over the growth stages suggesting their implication as selection indices for identification of genotype tolerant to YVMV disease. The results suggested modified bulk method of breeding through deferred selection after attaining homozygosity for maximum heterozygous loci.Not Availabl

Research paper thumbnail of Effect of growth substances on the expression of flowering and study on pollen viability of hermaphrodite & male ower in the female clone "Mondouri local" of Teasle gourd (Momordica subangulata Blume. subsp. renigera)

South Asian journal of experimental biology, Jan 14, 2019

<jats:p>Foliar sprays with gibberellic acid (GA) and silver nitrate (AgNO3) of di erent con... more <jats:p>Foliar sprays with gibberellic acid (GA) and silver nitrate (AgNO3) of di erent concentra ons at pre-flowering stage induced hermaphrodite and male owers on strictly gynoecious vines of teasle gourd (Momordica subangulata Blume. subsp. renigera). GA at 1500 ppm and AgNO3at 500 ppm were effective inducing more than 50% male owers in the female clone "Mondouri local". AgNO3 at 750 ppm was effective in inducing 36.6% male and 33.9% hermaphrodite owers on same plant. The hermaphrodite ower had higher pollen size (103.57 μm) compared to that of natural male ower (94.94 μm). However, there existed no variation between pollen viability of bisexual ower (81.6%) and normal male ower (89.1%). However, germinability of the pollen of hermaphrodite ower was very low (14.16%) producing very small pollen tube (9 μm), though the bisexual ower did not produce any fruit on self-pollination. </jats:p>

Research paper thumbnail of Qualitative and Quantitative Aspects of Teasle Gourd Genotypes

International Journal of Vegetable Science, 2017

ABSTRACT Plant morphology is widely adaptive. Phenotypic differentiation among genotypes reflects... more ABSTRACT Plant morphology is widely adaptive. Phenotypic differentiation among genotypes reflects a balance between natural selection in the local environment, migration of alleles via gene flow, and, at a lower frequency, the acquisition of novel traits through mutation. Teasle gourd [Momordica subangulata Blume subsp. renigera (G. Don) de Wilde] is a rich source of antioxidant vitamins and a raw material for commercial extraction of neutraceuticals. Extensive collection and characterization for evaluation of superior genotypes are important in improvement. The aim of the study was to evaluate genetic diversity of accessions through genetic components analyses, and genetic divergence by multivariate analysis and principal component analysis (PCA). Wide variation occurred for 13 qualitative and 19 quantitative characters. Number of fruit/plant and fruit weight was identified as the most important selection indices for improvement of yield. Based on determination of divergence, the 18 genotypes could be grouped into seven clusters. Geographical diversity was not adequate as an index of genetic diversity. Based on PCA and average values, genotypes “BCTG-1,” “BCTG-2,” and “BCTG-4” possessed optimum combinations of all variables. Inter-mating between these female clones by inducing staminate, or hermaphrodite, flowers with application of growth substances may be an alternative breeding method for teasle gourd. Desirable characters in hybrids as new varieties can be fixed indefinitely through clonal propagation within a short period of time.

Research paper thumbnail of Export of Onion, Garlic and Chilli: Three Essential Spices in Daily Kitchen

India is known as “The Home of Spices”. No Indian meal is considered complete without the tangy a... more India is known as “The Home of Spices”. No Indian meal is considered complete without the tangy and delectable flavor of Indian Spices, locally known as “Masala”. Indian spices are famous all over the world for their gastronic value to possess high medicinal values. Specialized commodity trading is gaining momentum in many parts of India. Vast export potential exists in India for fresh and different processed products of vegetables. Among vegetables, onion contributes the largest exportable commodities in India. India ranks third in export of fresh onion, next to Netherlands and Spain in the world and export of fresh onion from India is channelized through NAFED. Major importers of fresh onion from India are Gulf countries, Malaysia, Singapore, Sri Lanka and Bangladesh. Fresh onion export from India shares 8.98% of the total export earnings from agriculture sector in 2014–15. Garlic has been exporting from India for many years to the major importing countries like Qatar, Saudi Arabi...

Research paper thumbnail of Applied mutagenesis could improve economically important traits in bitter gourd (Momordica charantia L.)

Journal of Genetics

Mutants with unique characters have played a key role in discovery of gene, mapping, functional g... more Mutants with unique characters have played a key role in discovery of gene, mapping, functional genomics and breeding in many vegetable crops, but information on bitter gourd is lacking. Induction of mutation by gamma rays (Co 60 source) at five different doses (50 Gy, 100 Gy, 150 Gy, 200 Gy and 250 Gy) was studied in four widely divergent bitter gourd genotypes BG-1346501, Meghna-2, Special Boulder and Selection-1 in M 1 generation. Reduction in seed germination percentage, vine length and pollen fertility occurred in M 1 generation with the increasing doses of mutagens. LD 50 dose for BG-1346501, Meghna-2, Special Boulder and Selection-1 corresponded to 290.76 Gy, 206.12 Gy, 212.81 Gy and 213.49 Gy γ radiation, respectively suggested low to medium doses (200–250 Gy) of gamma rays would be helpful in producing useful and exploitable mutants for further breeding. No remarkable effect of γ radiation on fruit physico-chemical characters in M 1 generation were observed. M 2 generation, raised from two widely divergent genotypes, BG-1346501 and Meghna-2, were screened critically and observed no significant reduction in seed germination and pollen viability, however little damage occurred particularly in vine length. There is possibility of isolating segregates in M 2 generation with enhanced nutrient contents at low radiation dose. Highest mutation frequency resulted by treating Meghna-2 at 200 Gy and BG-1346501 at 100 Gy. Both genotype and mutagenic doses influenced mutagenic effectiveness. Spectrum of mutation was very low; number of putative mutants isolated from M 2 generation was five in Meghna-2 and three in BG-1346501. Among six putative macro mutants isolated from M 3 generation, we could identify two putative mutants, namely Meghna-2 with gynoecious sex form and BG-1346501 with high charantin, appreciable β-carotene and high ascorbic acid contents having ample promise for further utilization in bitter gourd breeding after critical testing in subsequent generations for estimation of genetic gain and trait heritability to confirm the mutant stability.

Research paper thumbnail of Radio-sensitivity of diverse tomato genotypes with respect to optimization of gamma irradiation dose

Brazilian Journal of Botany

Research paper thumbnail of Competitive functions with production efficiency in brinjal based intercropping systems

Competitive behaviour of intercrops in different brinjal based intercropping systems under the Ga... more Competitive behaviour of intercrops in different brinjal based intercropping systems under the Gangetic alluvial zone of West Bengal was investigated in a field study conducted for two consecutive years. Field experiments was carried out with 7 treatments [T1 (Sole Brinjal), T2 (Brinjal + Cowpea), T3 (Brinjal + Garlic), T4 (Brinjal + Fenugreek), T5 (Brinjal + Onion), T6 (Brinjal + Coriander), T7 (Brinjal + French bean)] following randomized block design with three replications. The results indicated that maximum production efficiency was observed in brinjal + French bean (222.78 kg/ha/day). Intercropping of brinjal with French bean was found promising for better utilization of biological resources as it recorded maximum values for LER (2.68), and desirable lower values of aggressivity (0.15). However, brinjal + cowpea was found maximum for RCC (2.49), and brinjal + onion had maximum monetary advantage index (208.29).

Research paper thumbnail of Genetic control of qualitative and quantitative traits in bell pepper crosses involving varied fruit colors and shapes

International Journal of Vegetable Science, 2022

Research paper thumbnail of Economics of Solanaceous vegetables in the Gangetic alluvial of West Bengal during autumn-winter season

An attempt has been made on the economics of three major Solanaceous vegetable crops (tomato, bri... more An attempt has been made on the economics of three major Solanaceous vegetable crops (tomato, brinjal and chilli) grown in West Bengal with their respective cost component analysis and economic return on the basis of the information gathered from ten progressive vegetable growers from three districts selected at random and purposively. Through detailed survey and questionnaire, break up of cost components for each vegetable along with their operational cost and farm harvest price have been collected. It could be determined that cultivating one hectare of brinjal with open pollinated local cultivar, hybrid tomato and chilli with open pollinated local cultivar a farmer gets a minimum return of 2.46/-, Rs. 3.14/- and Rs. 1.27/-, respectively by spending one rupee for cultivation. It is concluded from the present study that during autumn-winter season in West Bengal the cultivation of hybrid tomato is the most remunerative activity, which is closely followed by brinjal. However, brinjal...

Research paper thumbnail of Breeding tomato (Solanum lycopersicum L.) for higher productivity and better processing qualities

Sabrao Journal of Breeding and Genetics, 2012

Research paper thumbnail of Applied mutagenesis in tomato for the isolation of mutants of enhanced fruit quality

Journal of Pharmacognosy and Phytochemistry, 2017

Spontaneous or induced mutants, with desirable changes in particular characters have been a key m... more Spontaneous or induced mutants, with desirable changes in particular characters have been a key material for gene discovery, mapping, functional genomics and breeding in many crops including tomato. The present investigation was undertaken to study the frequency and spectrum of macro-mutations of gamma rays, EMS and their combinations in “Patharkutchi,” the highly adaptable and popular cultivar of West Bengal. The dry seeds were irradiated with 50, 100, 150, 200 and 250 Gy gamma rays. Pre-soaked seeds of this genotype (6 h, in water) were treated with 0.05, 0.10, 0.15, 0.20 and 0.25% ethyl methane sulphonate (EMS) for 8 h at 25 ± 2 C. Gamma irradiated seeds of this genotype were also pre-soaked (6 h, in water) before treating with 0.15 % EMS solution for 8 h at 25 ± 2 C as combination treatment. Combination of gamma radiation and EMS caused more damage followed by EMS treatment and gamma radiation, alone in M1 generation. Gamma irradiation (50-150 Gy) was most efficient followed by ...