Subrata Dutta

Bidhan Chandra Krishi Viswavidyalaya

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Arup Chattopadhyay

Bidhan Chandra Krishi Viswavidyalaya

Ashis Roy Barman

Bidhan Chandra Krishi Viswavidyalaya

Pranab Hazra

Bidhan Chandra Krishi Viswavidyalaya

Tania Seth

Central Institute for Women in Agriculture

Asit Mandal

Indian Institute of Soil Science

Praveen Kumar Maurya

Narendra Dev University of Agriculture and Technology

Tridip Bhattacharjee

Bidhan Chandra Krishi Viswavidyalaya

Swadesh Banerjee

Bidhan Chandra Krishi Viswavidyalaya

Sujit Kumar Ray

Bidhan Chandra Krishi Viswavidyalaya

Sanjib Kuiry

University of Kalyani

Cooperative Institutions

Bidhan Chandra Krishi Viswavidyalaya

Indian Council of Agricultural Research

University of Kalyani

Indian Agricultural Research Institute

Visva-Bharati University

North Bengal Agricultural University

Banaras Hindu University

Jadavpur University

Vidyasagar University

University of Calcutta

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ANALYSING THE AIR QUALITY OF ASANSOL, WEST BENGAL, INDIA WITH REFERENCE TO PM10, PM2.5 AND NO2 (STUDY PERIOD: 2013 TO 2018)

REDSHINE Publication eBooks (2020)

Subrata Dutta

West bengal

BENGAL

10.25215/1300797274.27

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Seed yield and quality of okra as influenced by sowing dates

AFRICAN JOURNAL OF BIOTECHNOLOGY (2011)

Amitabha Chattopadhyay Subrata Dutta S. D. Chatterjee

Field trials were conducted at the Gangetic Alluvium of eastern India to find out the most suitable sowing time to achieve higher yield, comparatively less incidence of yellow vein mosaic virus (YVMV) and quality seed of okra over four consecutive years having seven sowing times at fortnight interval (1st February, 16th February, 1st March, 16th March, 1st April, 16th April and 1st May). The seed yield attributing characters differed significantly with different sowing dates. The maximum matured pods per plant (14.57) and the longest matured pod (18.00 cm) was observed from 1st April sowing which was statistically similar with that of number and length recorded between16th February and 1st May sowing dates. However, seeds sown in 16th February significantly produced the highest mean seed yield (6.84 q/ha) followed by 1st March (6.18 q/ha) sowing over the years. Seeds sown in either 16th February or 1st March produced the best quality seed (85.30 and 80.0% germination; 45.0 and 44.0 g test weight 29.75; 11.79 and 11.64 vigour index, respectively). Correlation study clearly revealed that seeds per pod and test weight significantly contributed to the seed yield. Rainfall was found to be the major contributor with a significant negative effect on yield over the year. The seed yield of okra was highly influenced by the incidence of YVMV and higher yield was obtained during disease free period, particularly between February and March. The income per rupee investment of okra seed crop was found to be the maximum (2.40) when sown at 2nd fortnight of February. Key words: Okra, seed yield, seed quality, economics.

Test weight

Non-invasive ventilation

10.5897/ajb10.979

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Characterization of Okra Germplasm and Their Genetic Divergence in The Gangetic Alluvium of Eastern India

Vegetos (2012)

Sibsankar Das Arup Chattopadhyay Sankhendu Bikash Chattopadhyay Subrata Dutta Pranab Hazra

Genetic divergence

Germ plasm

Mahalanobis distance

Non-invasive ventilation

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Enhancement of post harvest fruit quality and leaf curl disease tolerance in tomato through hybrid breeding

Journal of Applied and Natural Science (2015)

N. Pandiarana Shende Varun Durwas Tania Seth Soumitra Chatterjee Subrata Dutta

Development of hybrids tolerant to leaf curl virus disease along with good post harvest/processing traits is the major thrust areas in tomato breeding now-a-days. A study was undertaken following 7 × 7 half diallel mating design utilizing four exotic and three indigenous lines to identify potential donors and crosses, to study the extent of heterobeltiosis and dominance behaviour, and to assess the genetic control of post harvest quality traits along with disease tolerance in tomato. Breeding strategies to improve characters governed by different types of gene action are discussed. Two parental lines, CLN 2777F and CLN 2777E could be utilized further in tomato breeding programme as they were identified as the most promising general combiners for fruit yield, processing quality and ToLCV tolerance. The maximum extent of heterobeltiosis (104.17%) was found in pericarp thickness followed by fruit yield plant-1 (63.57 %) and PDI of ToLCV disease (-60.00 %). The hybrids also exhibited various degrees of dominance effects. The study could also able to identify a promising cross ‘CLN 2777E × CLN 2777F’ which could be recommended for commercial exploitation after critical study in leaf curl disease prone areas of the tropics and sub-tropics.

Leaf curl

Wilt disease

Mating design

Bacterial wilt

Disease resistant

10.31018/jans.v7i2.653

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Identification of selection indices and choosing of parents for vegetable cowpea (Vigna unguiculatacv-gr. sesquipedalis) breeding programme

Legume Research - An International Journal (2014)

Arup Chattopadhyay Nepu Rana Tania Seth Sibsankar Das Soumitra Chatterjee

In the present study seventeen genotypes of vegetable cowpea (Vigna unguiculata cv-gr. Sesquipedalis) collected from different places in the country were evaluated for different horticultural traits for genetic variation, character association, cause-effect analysis and genetic diversity was measured among the genotypes through D2 statistics. All the eight characters under study differed significantly among the genotypes. High to moderate GCV and PCV values were found for number of pods per plant, pod yield per plant, pod weight, number of seeds per pod and pod length. Higher estimates of broad sense heritability coupled with higher genetic advance for number of pods per plant, pod yield per plant, pod weight, number of seeds per pod and pod length. Association studies revealed that genotypic correlation coefficients were higher than their phenotypic correlation coefficients in most of the cases. From the correlation and path analysis, it can be concluded that emphasis should be given on number of pods per plant and pod weight for selecting high yielding genotypes. Based on the degree of divergence the genotypes were grouped into seven clusters. The top three characters which contributed most towards the genetic divergence were number of seeds per pod, pod yield per plant and pod weight. Cluster II had genotypes with high pod productivity, while the genotypes in Cluster III flowered much earlier. Crossing between genotypes within these groups could produce highly productive and early maturing cowpea genotypes.

Identification

Non-invasive ventilation

10.5958/j.0976-0571.37.1.003

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Citations (7)

Effect of anti-oxidant on tear film in patients suffering from diabetes mellitus.

PubMed (2014)

Subrata Dutta Nazarul Islam Soumen Chakroborty Anup Mondal Rakhi Bandopadhay

To study the effects of anti-oxidant on tear film parameters in patients with diabetes mellitus, a total of 100 patients of diabetes mellitus with defective Schirmer test and tear film break-up time were enrolled in this study and they were given vitamin C (1000 mg/day) and vitamin E (400 IU/day) for 30 days. Schirmer test and tear break-up, time were re-examined after 1 month. There was significant improvement in values for Schirmer test (p < 0.001) and tear break-up time. Oxidative stress has an influence on how diabetes mellitus affects various systems of body. This study clearly depicted im- portant roles of vitamins C and E in improving the well-being of the ocular surface.

Schirmer test

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Some Guavas of Assam

Indian Journal of Horticulture (1953)

Subrata Dutta

Seven varieties of guavas of Assam have been botanically described with very short notes on their economic importance.

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Correlation studies including physico-chemical properties of ginger-soils from different locations of Cooch Behar and rhizome - rot and wilt disease severity of ginger.

Journal of Mycopathological research (2011)

Anamika Debnath Sekhar Bandyopadhyay Subrata Dutta

Wilt disease

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Absorption of photosynthetically active radiation (PAR) and its effect on yield and dry matter production of rice at different dates of transplanting.

Journal of Crop and Weed (2011)

Subrata Dutta D. Fangzauva S. Jena Rajib Nath D. Mazumder

Photosynthetically active radiation

Transplanting

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Management of cucumber downy mildew with fungicides

Diptanjan Ghosh Indrabrata Bhattacharya Subrata Dutta Abhijit Saha Debasis Majumdar

The study was conducted during 2010-2011 to find out the incidence of downy mildew of cucumber caused by Pseudoperonospora cubensis and evaluate the effectiveness of fungicides in controlling the disease. The fungicide trial was conducted with 8 fungicides, viz., fosetyl-al, dimethomorph, cymoxanil-mancozeb, copper oxychloride, metalaxyl-mancozeb, propineb, mancozeb, chlorothalonil and a control without application of any fungicides at research farm of Bidhan Chandra Krishi Viswavidyalaya, Kalyani, West Bengal. High humidity (RH> 93%) and slightly lower minimum temperature (18-25oC) and light rain during last week of october triggered the initiation of downy mildew disease of cucumber and high humidity in the region spread the disease quickly and pdi (per cent disease intensity) reached >50% within a month of disease initiation. Logistic equation was better to represent disease progress curve (r2 = 0.96, and se = 0.055) than linear equation (r2 = 0.91, se = 0.114). The result of field trial with fungicides against downy mildew of cucumber established that final pdi and audpc (area under disease progress curve) in the following order of these fungicides treatments: Fosetyl-al < dimethomorph < cymoxanilmancozeb < copper oxychloride < metalaxyl-mancozeb < propineb < mancozeb < chlorothalonil and highest in control untreated plots. Among the eight fungicides, systemic fungicides, fosetyl-al followed by dimethomorph and cymoxanil-mancozeb were found to be effective in reducing disease incidence and enhancement of yield.

Metalaxyl

Chlorothalonil

Pseudoperonospora cubensis

Iprodione

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