ICAR Central Island Agricultural Research Institute

Port Blair, India

ICAR Central Island Agricultural Research Institute

Port Blair, India
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Simhachalam P.,ICAR Central Island Agricultural Research Institute | Gautam R.K.,ICAR Central Island Agricultural Research Institute | Birah A.,ICAR Central Island Agricultural Research Institute | Baskaran V.,ICAR Central Island Agricultural Research Institute | Dam Roy S.,ICAR Central Island Agricultural Research Institute
Indian Journal of Agricultural Research | Year: 2017

Complete floral and faunal information is required to preserve the biodiversity of research fields and adjacent forest. In this respect, a preliminary study of butterfly diversity of the proposed research farm and adjacent forest area in Bloomsdale Research Farm, South Andaman was carried out during 2011-12. A total of 40 species of butterflies belonging to 35 genera of five families were recorded. The distribution of 40 species of butterflies in different families was found in the sequence of Nymphalidae followed by Lycaenidae, Pieridae, Papilionidae and Hesperiidae.


Baskaran V.,ICAR Central Island Agricultural Research Institute | Abirami K.,ICAR Central Island Agricultural Research Institute | Simhachalam P.,ICAR Central Island Agricultural Research Institute
Indian Journal of Agricultural Sciences | Year: 2017

Field experiment was conducted for two consecutive seasons during November to April 2013-14 and 2014-15 in the Division of Horticulture and Forestry, Central Island Agricultural Research Institute, Port Blair to study the effect of plant growth regulators on gladiolus [Gladiolus grandiflorus Hort.] cv. Punjab Dawn. The results obtained showed that the growth, flowering and corm characters were significantly influenced by the application of growth regulators at different concentrations. Earliness in corm sprouting was observed by GA3 @ 250 ppm (8.7 days). Maximum number of leaves/plant and plant height were recorded in GA3 @ 750 ppm (9.6 and 93.6cm respectively). More number of shoots/corm was observed in the treatment BA @ 75 ppm (4.0). With respect to flower characters, early spike emergence and maximum duration of the spike were recorded by GA3 @ 500 ppm (46.7 days and 16.2 days respectively). Maximum spike length, rachis length, number of florets/spike and floret size (74 cm, 50.2 cm, 14.3 and 11.4 cm respectively) were recorded by GA3 @ 750 ppm. With regard to post harvest studies, maximum longevity of opened floret and vase life of cut spike (3.9 days and 14.2 days respectively) were recorded by GA3 @ 750 ppm .With regard to the corm characters, maximum number of corms and cormels/plant were observed in BA @ 100 ppm (3.7 and 11.8 respectively). Weight of single corm, weight of corms/plant, size of single corm, volume of single corm and propagation coefficient were also maximum in GA3 @ 750 ppm (70.9 g, 169.3 g, 7.0 cm, 79.5 cm3 and 348.3% respectively). © 2017, Indian Council of Agricultural Research. All rights reserved.


Anuraj A.,ICAR Central Island Agricultural Research Institute | Kirubasankar R.,ICAR Central Island Agricultural Research Institute | Kaliyamoorthy M.,ICAR Central Island Agricultural Research Institute | Dam Roy S.,ICAR Central Island Agricultural Research Institute
Turkish Journal of Fisheries and Aquatic Sciences | Year: 2017

Since Burton & Davie revised the monotypic genus Thenus, the genus is represented by two species in Mainland India, Thenus unimaculatus (Burton and Davie, 2007) and Thenus indicus (Lund, 1793). In this study, we are reporting the occurrence of T. unimaculatus for the first time from Andaman and Nicobar Islands. We have investigated the species based on morphological characters and morphometric ratios following original description of T. unimaculatus. All the morphological characters and most of the morphometric ratios were found to coincide with the previous description. Mitochondrial COI gene sequencing also supports the landings of T. unimaculatus in these Islands. © Published by Central Fisheries Research Institute (CFRI) Trabzon, Turkey.


Inbaraj S.,ICAR Central Island Agricultural Research Institute | Inbaraj S.,Indian Veterinary Research Institute | Kundu A.,ICAR Central Island Agricultural Research Institute | De A.K.,ICAR Central Island Agricultural Research Institute | And 2 more authors.
Biological Rhythm Research | Year: 2017

The objective of the current study was to observe the impact of two seasons viz. summer (February–May) and monsoon (June–August) on the blood biochemical and hormonal responses in different indigenous goats of tropical island agro-ecological environment maintained under extensive management system. Sixty animals of three different indigenous goat breeds were included in the study: Andaman local goat (AL, n = 20), Andaman local × Malabari (AL × M, n = 20), and Teressa goat (n = 20). Sixty serum samples (n = 10/season/breed) from the three groups of animals were analyzed. Study revealed that there was a significant increase (p ≤ 0.05) in serum total protein in Teressa goats during summer than monsoon. Serum albumin showed significant variation (p ≤ 0.05) between AL and AL × M during summer whereas significant variation of albumin (p ≤ 0.05) was observed between AL and Teressa, AL × M and Teressa during monsoon season. Significant differences in serum albumin (p ≤ 0.05) were also observed in AL and AL × M during summer and monsoon seasons, respectively. The serum cortisol levels were significantly higher (p ≤ 0.05) in AL goats during summer than in monsoon season. Thus, the study could able to establish the seasonal variation in biochemical and hormonal values of indigenous goat breeds in hot and humid tropical island environment. © 2017 Informa UK Limited, trading as Taylor & Francis Group


Swarnam T.P.,ICAR Central Island Agricultural Research Institute | Velmurugan A.,ICAR Central Island Agricultural Research Institute | Pandey S.K.,ICAR Central Island Agricultural Research Institute andaman and Nicobar Islands | Dam Roy S.,ICAR Central Island Agricultural Research Institute
Bioresource Technology | Year: 2016

Vermicompost was prepared by five different treatments from relatively resistant coconut husk mixed with either pig slurry or poultry manure. The recovery of vermicompost varied from 35% to 43% and it resulted in significant increase in pH, microbial biomass carbon, macro and micro nutrients concentration. Among the treatments highest relative N (1.6) and K (1.3) recovery were observed for 20% feedstock substitution by pig slurry while poultry manure substitution recorded highest P recovery (2.4). Compost maturity parameters significantly differed and well correlated. The characteristics of different treatments established the maturity indices as C/N 15-20; Cw < 1.8; Cw/Norg < 0.55; Lignin < 10-12; CHA/CFA > 1.5 and HI > 15.0. The manurial value of the coconut husk compost was improved by feedstock substitution with pig slurry (80:20). The results revealed the technical feasibility of converting coconut husk into valuable compost by feedstock substitution with pig slurry. © 2016 Elsevier Ltd.


Someshwar B.,National Research Center for Integrated Pest Management | Israr A.,ICAR Central Institute for Subtropical Horticulture | Kumar T.A.,ICAR Central Island Agricultural Research Institute
Research Journal of Biotechnology | Year: 2016

The biocontrol fungi, Trichoderma are the most important biocontrol agent and have been used extensively worldwide for the management of various plant pathogens. Trichoderma isolates were isolated from different crops rhizosphere of Bay Islands and established antagonistic potential against Sclerotium rolfsii based on phylogenetic analysis of nucleotide sequences. All isolates of Trichoderma spp significantly inhibited the S. rolfsii by dual culture and production of non-volatile inhibitors at 5 and 10% concentrations of culture filtrate. DNA sequences of the isolates included the internal transcribed spacer (ITS) regions of the rDNA cluster (ITS1-ITS2). The 5.8S region was found conserved and much of the sequence variability was due to indels or transition/transversion mutations in the ITS1 and 2 regions. Both the isolates belonged to the T. harzianum clade. These isolates are distinct yet have close genetic similarity with several established strains/isolates of T. harzianum reported worldwide. Correct identification of these bioagents would augment the effective utilization of these fungi of immense agricultural importance in managing the collar rot disease of brinjal. © 2016, Research Journal of BioTechnology. All rights reserved.


PubMed | ICAR Central Island Agricultural Research Institute andaman and Nicobar Islands and ICAR Central Island Agricultural Research Institute
Type: | Journal: Bioresource technology | Year: 2016

Vermicompost was prepared by five different treatments from relatively resistant coconut husk mixed with either pig slurry or poultry manure. The recovery of vermicompost varied from 35% to 43% and it resulted in significant increase in pH, microbial biomass carbon, macro and micro nutrients concentration. Among the treatments highest relative N (1.6) and K (1.3) recovery were observed for 20% feedstock substitution by pig slurry while poultry manure substitution recorded highest P recovery (2.4). Compost maturity parameters significantly differed and well correlated. The characteristics of different treatments established the maturity indices as C/N 15-20; Cw<1.8; Cw/Norg<0.55; Lignin<10-12; CHA/CFA>1.5 and HI>15.0. The manurial value of the coconut husk compost was improved by feedstock substitution with pig slurry (80:20). The results revealed the technical feasibility of converting coconut husk into valuable compost by feedstock substitution with pig slurry.


Sreesujatha R.M.,Livestock Research and Information Center Sheep | Jeyakumar S.,National Dairy Research Institute | Kundu A.,ICAR Central Island Agricultural Research Institute | Balasundaram C.,Bharathidasan University
Theriogenology | Year: 2016

The present study was undertaken to evaluate the ovarian status of matured breeding female Japanese quail by means of B Mode portable ultrasound scanning. Active ovaries in various stages of hierarchical development and different morphological structure were observed. The large yellow follicles appeared as a cluster of dark circles with various intensity of hyperechoic concentric ring. Sonographically, these follicles were classified into F1, F2, and F3 measuring 16.20 ± 0.06 mm, 12.48 ± 0.09 mm, and 7.95 ± 0.16 mm, respectively. A comparative study on preslaughter and postslaughter ovarian follicular status revealed accuracy of follicles less than 10 mm, 10-15 mm, 15-18 mm, and greater than 18 mm as 26.31%, 78.9%, 93.75%, and 100%, respectively, with an overall accuracy of 71%. This is the first report on the application of transcutaneous ultrasonographic technique to monitor ovarian status on Japanese quail reporting that the ovarian follicular activity and morphological structure can be monitored nonintrusively throughout quail life which can used as model for reproductive and biomedical research. © 2016 Elsevier Inc.


Dhanani T.,ICAR Directorate of Medicinal and Aromatic Plants Research | Singh R.,ICAR Directorate of Medicinal and Aromatic Plants Research | Waman A.,ICAR Central Island Agricultural Research Institute | Patel P.,ICAR Directorate of Medicinal and Aromatic Plants Research | And 2 more authors.
Industrial Crops and Products | Year: 2015

In order to supply uniform, genuine, good quality raw material to the pharmaceutical industries and to reduce the burden on natural stocks, cultivation of medicinal crops is the need of the hour. However, improved varieties with optimum levels of active ingredients have so far not been developed in a number of important medicinal crops. Considering this, an investigation was undertaken to assess the extent of variability amongst the natural populations of Gurmar (. Gymnema sylvestre), an important anti-diabetic plant of the Indian Systems of Medicine. Evaluation of the accessions for morphological parameters revealed highly significant differences for leaf related parameters viz. length, width, fresh as well as dry weight and petiole length, which directly contribute to the biological yield of the plant. Further, a validated high performance liquid chromatography-diode array detection (HPLC-DAD) method was also developed for identification and quantification of bioactive principle i.e., gymnemagenin in a gradient elution mode using solvent mixture composing of acetonitrile (solvent A), potassium dihydrogen orthophosphate (10. mM, solvent B) both solvent A and B containing orthophosphoric acid (0.05%, v/v). Results revealed significant differences for gymnemagenin content amongst the accessions evaluated. These accessions could be used in breeding programs for development of cultivars with optimum levels of gymnemagenin, which in turn may promote the cultivation of this high value medicinal crop. © 2015 Elsevier B.V..


PubMed | ICAR Central Island Agricultural Research Institute
Type: Journal Article | Journal: Theriogenology | Year: 2016

The present study was undertaken to evaluate the ovarian status of matured breeding female Japanese quail by means of B Mode portable ultrasound scanning. Active ovaries in various stages of hierarchical development and different morphological structure were observed. The large yellow follicles appeared as a cluster of dark circles with various intensity of hyperechoic concentric ring. Sonographically, these follicles were classified into F1, F2, and F3 measuring 16.200.06mm, 12.480.09mm, and 7.950.16mm, respectively. A comparative study on preslaughter and postslaughter ovarian follicular status revealed accuracy of follicles less than 10mm, 10-15mm, 15-18mm, and greater than 18mm as 26.31%, 78.9%, 93.75%, and 100%, respectively, with an overall accuracy of 71%. This is the first report on the application of transcutaneous ultrasonographic technique to monitor ovarian status on Japanese quail reporting that the ovarian follicular activity and morphological structure can be monitored nonintrusively throughout quail life which can used as model for reproductive and biomedical research.

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